Related
Several users have complained that they get blank screens and cannot flash new roms to their Nook Color. And sometimes they end up in a recovery bootloop where it will do nothing but boot to recovery no matter what they choose in the boot menu. Sometimes this is due to corrupted partitions on internal memory.
DizzyDen has prepared some .img files that can be burned to emmc to repair some of these issues, and they work well. But some of the files are very large and it takes a little knowledge of adb commands on the part of the users. And some users cannot get adb working on their machines. So I started investigating other solutions, and I have made some tools that work that I hope are user friendly.
Dean Gibson has a thread that describes how to repartition emmc to set the partition sizes for data and media to the user's preference. He repartitions partitions p6 (data), p7 (cache) and p8 (media). In studying his zip, I figured out how to make his tool repair partitions p4 (extended), p5 (system), p6 (data), p7 (cache), and p8 (media). And I was able to add additional commands to also repair partition p1 (boot). I asked Dean's permission to post his tools as modified by me and he agreed. Thanks Dean!
So that takes care of partitions 1, 4, 5, 6, 7, and 8.
Partitions 2 and 3 are very special and one must be very careful with them. Partition 2 is 'rom', which holds information that is specific to the user's device (serial number, etc.), and it is used by the system to set flags for deciding whether to boot to recovery or not and set the boot count that is used to decide whether to do a reset to factory conditions (8 failed boots). Partition 3 is 'factory' and holds the factory.zip file used by the 8 failed boot reset (if you want to learn more about the 8 failed boot reset, go to my tips thread linked in my signature). It also holds a backup of the device information in partition 2. So it is possible to repair partition 2 if partition 3 is still intact.
A few users have somehow managed to flash Nook Tablet ROMs to their Nook Colors and really messed up partition 4. (Edit: and now I know how it happened, some idiot recommended that they remove the first line of the updater script. NEVER do that! That line is a safety check to make sure you are flashing to the right device. You can also defeat the safety check by using an old CWM that has the toggle, 'disable asserts'. Never do that either.) And since partition 4 is the extended partition that holds partitions 5, 6, 7, and 8, they get messed up too. To repair those partitions along with partition 1, use CWM recovery to flash the two zips attached below. Be warned that everything in emmc media (p8) will be wiped out, so you may want to back that up first if you still can. The first zip to flash is 'NookColor-emmc-repair-partitions-1-4-5-6-7-8.zip'. It will recreate those partitions on emmc. As soon as you have sucessfully flashed that zip, you must reboot the Nook Color back to CWM so that the updated partition table is read by CWM. Then you need to flash 'NookColor-emmc-format-partitions-5-6-7-8.zip' (partitions 1 and 4 do not need formatting). It will format the newly created partitions to the correct structure. Now you can use CWM to restore an earlier nandroid backup or flash your favorite ROM (including stock, get version 1.4.3 that I have modified to be flashable with CWM here, or DizzyDen has posted some excellent 1.4.1 stock ROMs here). If you are going to flash a stock ROM, you must be sure to use the format zip or the stock ROM will not boot properly.
If you are in a recovery bootloop, the first thing I recommend trying is to use my CWM version 5.5.0.4 bootable SD that is discussed in my tips thread linked in my signature and has been modified to help get out of some kinds of recovery flag bootloops. If you are in a recovery bootloop that just hangs, it may get you out of it after exiting my CWM with the 'reboot' command in the menu. But if you are still in the loop after doing that, it may be because your device info is missing or corrupted in partition 2. It will not boot to a ROM without this info. (Specifically, it needs a file in /rom/devconf named DeviceID. It is a text file with your 16 digit serial number in it followed by a line feed, 17 bytes.) Try flashing with CWM my 'NookColor-emmc-repair-partition-2.zip' attached to this post to recreate that info. But I recommend this as a last resort, since messing with that partition is risky. That zip will recreate the partition, reset the flags and copy your device specific information from partition 3. But your partition 3 must be intact for this to work. If it is not, the zip will abort and do nothing.
Additionally, for those that do not want to use CWM, I have made a bootable SD that has an older version of TWRP here. Newer versions of TWRP will return an error message when trying to flash these zips. It also has been modified to get you out of some kinds of bootloops.
Two points of information. First, I have included a temporary copy of CWM 5.5.0.4 on the boot partition of my repair so that if tries to reboot to emmc before you put a ROM on it, it goes to CWM. It will be removed as soon as you restore a backup or flash a ROM. Second, the new partition scheme created with my zip is for the original Nook Color's 1GB data and 5GB media. If you want one of the other schemes (5GB data/1GB media or 2GB data/4GB media) go to Dean Gibson's thread and flash his zips after you have repaired your system with mine. See his thread here.
I'm adding a little extra information about emmc partition structure for those interested. With any MBR disk there can be a maximum of four primary partitions. So to have more than four partitions the last primary partition is created as an extended partition so multiple logical partitions can be made inside it. The emmc structure is: p1 (boot, fat, primary), p2 (rom, fat, primary), p3 (factory, ext3, primary), p4 (extended, going from end of p3 to end of the disk), p5 (system, ext2, logical, inside the extended), p6 (data, ext3, logical, inside the extended), p7 (cache, ext3, logical, inside the extended) and p8 (media, fat, logical, inside the extended).
You save my nook color
Thank you so much. My serial number and other information were recovered successfully. Without those information I could not boot into any rom. If you cannot boot into ROM after following the first 2 steps, try recover partition 2. It works for me.
:laugh::laugh::laugh::laugh::laugh:
Thanks
My nook has been stuck in a "will not boot" state for about a week. I could run CWM and cyanoboot, but when ever I tried to boot CM I would get stuck at the "loading..." screen. I tried loading both CM7 & CM9 but neither one would boot.
I ran both repair scripts, reloaded CM7.1 and success!
Thanks Leapinlar! :good:
THANK YOU!!!!!!
Right from my 1st install I couldn't get the bar at the bottom of the screen, which made using the Kindle app more than a little difficult. This finally cleared everything off so I could start with a clean slate, and BINGO! I know have the bottom bar on all the screens. I assume when I go in to the Kindle app it will be ok now also (I just have to format a 16gb microSD and put in the Nook Color 1st).
I can't thank you enough!!!!
Ugh! Tried this method too, and I still cannot get the nook to boot into CWR or CWM. I tried the 8 boots thing too, but I don't know if I ever did it right because I have cyanogen mod installed on emmc. Not sure how to repair the partition if I cannot even boot into anything that allows me to flash the zip to the chip. I thought it may be the sd, but the sd cards work on my other nook. I have now basically dissembled my nook color trying to find any other solution I wish I knew what happened in the first place.
czarofthefrozentundra said:
Ugh! Tried this method too, and I still cannot get the nook to boot into CWR or CWM. I tried the 8 boots thing too, but I don't know if I ever did it right because I have cyanogen mod installed on emmc. Not sure how to repair the partition if I cannot even boot into anything that allows me to flash the zip to the chip. I thought it may be the sd, but the sd cards work on my other nook. I have now basically dissembled my nook color trying to find any other solution I wish I knew what happened in the first place.
Click to expand...
Click to collapse
Did you try my version of the CWM bootable SD card? It is on my tips thread and has been modified to boot in certain types of recovery bootloops. Unless you get CWM running you cannot flash things to internal memory. And depending on where in the boot process it hangs, you may not be able to get adb working to put things there either. And the 8 failed boots will not work unless you have stock recovery still on emmc.
Sent from my NookColor using Tapatalk
leapinlar said:
Did you try my version of the CWM bootable SD card? It is on my tips thread and has been modified to boot in certain types of recovery bootloops. Unless you get CWM running you cannot flash things to internal memory. And depending on where in the boot process it hangs, you may not be able to get adb working to put things there either. And the 8 failed boots will not work unless you have stock recovery still on emmc.
Sent from my NookColor using Tapatalk
Click to expand...
Click to collapse
Yup. Tried the card. I believe I replaced the emmc with cyanogenmod back in the day. Starts, goes to loading, turns black, then done. Cannot do anything after that. Bummer, sounds like it is actually toast.
czarofthefrozentundra said:
Yup. Tried the card. I believe I replaced the emmc with cyanogenmod back in the day. Starts, goes to loading, turns black, then done. Cannot do anything after that. Bummer, sounds like it is actually toast.
Click to expand...
Click to collapse
If you can get adb working while it is sitting there black, you can push the stock recovery files to partition one. Then you may be able to do the 8 failed boots. You can extract the stock recovery files from my zip in my tips thread.
leapinlar said:
If you can get adb working while it is sitting there black, you can push the stock recovery files to partition one. Then you may be able to do the 8 failed boots. You can extract the stock recovery files from my zip in my tips thread.
Click to expand...
Click to collapse
Worth a shot. Have nothing more to lose other than time. Maybe adb will work with you card in it. It didn't work with everything else I tried.
OMG OMG thank you soooo much for this thread , you saved my reading addict self from going insane ......
You've done a great job on collecting all of these useful things, especially for those who are stuck with their Nook Color boot looping. (I was once that guy) Dean helped me out with his data zips as well way back! Thanks for all this! :good: :victory:
Much thanks, leapinlar. Restored a nandroid with TWRP that was corrupted and lost my boot partition. I used your first 2 repair zips and I'm back in business. Your many contributions are greatly appreciated.
Mike T
OMG! Thank you so much for putting this up! Back at the beginning of the year I was having problems with my NC not going into USB Mode and only showing a black arrow when trying to load books and following this finally fixed it. Great write-up and instructions, thanks for the hard work.
I've been trying to restore my NOOK for about 2 weeks and this post has gotten me the farthest but i'm stuck at the point where my nook will start up, the "Read Forever" splash screen will come up and then it attempts to recover the system since i see an greenish Android screen come up for a second and then i get an error screen saying "Install Failed" with an image of a nook with an exclamation point in it's screen. I'm assuming i've really messed the nook up but here is where I am.
I've reformatted the partitions using your 1-4,5,6,7,8 zip
Rebooted to recovery
Formatted partiions 5,6,7,8 with your zip
Flashed your 1.4.3 stock rom
At this point I can't get any further since it appears something else is wrong and i didn't want to attempt the reformatting of partition 2 without asking if there is anything else i should try. Any help would be appreciated.
Thanks
jmiklus01 said:
I've been trying to restore my NOOK for about 2 weeks and this post has gotten me the farthest but i'm stuck at the point where my nook will start up, the "Read Forever" splash screen will come up and then it attempts to recover the system since i see an greenish Android screen come up for a second and then i get an error screen saying "Install Failed" with an image of a nook with an exclamation point in it's screen. I'm assuming i've really messed the nook up but here is where I am.
I've reformatted the partitions using your 1-4,5,6,7,8 zip
Rebooted to recovery
Formatted partiions 5,6,7,8 with your zip
Flashed your 1.4.3 stock rom
At this point I can't get any further since it appears something else is wrong and i didn't want to attempt the reformatting of partition 2 without asking if there is anything else i should try. Any help would be appreciated.
Thanks
Click to expand...
Click to collapse
Do the partition 2 repair. That is what is messed up and causing the reboot.
Sent from my Nook HD+ using Tapatalk
leapinlar said:
Do the partition 2 repair. That is what is messed up and causing the reboot.
Sent from my Nook HD+ using Tapatalk
Click to expand...
Click to collapse
I've tried the partition2 zip and received an error trying to mount the factory partition. Status 7 was the error code. Is there a way to fix this?
jmiklus01 said:
I've tried the partition2 zip and received an error trying to mount the factory partition. Status 7 was the error code. Is there a way to fix this?
Click to expand...
Click to collapse
Oh, that is really bad news. That means your partition 3 is corrupted and there is no way to retrieve your device info, like serial number, etc. PM me and maybe I can help you get it partly working, but much of the device info is lost if that partition is truly corrupted.
Sent from my BNTV600 using Tapatalk
Restore NC back to stock
View attachment 1500490
leapinlar said:
Oh, that is really bad news. That means your partition 3 is corrupted and there is no way to retrieve your device info, like serial number, etc. PM me and maybe I can help you get it partly working, but much of the device info is lost if that partition is truly corrupted.
Sent from my BNTV600 using Tapatalk
Click to expand...
Click to collapse
I've been trying to restore my daughter NC back to stock for couple months now and no success.
I did flash the P 1-4-5-6-7-8.zip and got this message after reboot:
"CWM-based Recovery v5.5.0.4
E: Can't mount /cache/recovery/command
E: Can't mount /cache/recovery/log
E: Can't open /cache/recovery/log
E: Can't mount /cache/recovery/last_log
E: Can't open /cache/recovery/last_log
during the reboot, there is a menu option to hit "n" for reboot mode option. when i hit "n" it gives me (attachment).
but it won't let me move up or down to select except for the 1st option
Help would be very appreciated
big64dave said:
View attachment 1500490
I've been trying to restore my daughter NC back to stock for couple months now and no success.
I did flash the P 1-4-5-6-7-8.zip and got this message after reboot:
"CWM-based Recovery v5.5.0.4
E: Can't mount /cache/recovery/command
E: Can't mount /cache/recovery/log
E: Can't open /cache/recovery/log
E: Can't mount /cache/recovery/last_log
E: Can't open /cache/recovery/last_log
during the reboot, there is a menu option to hit "n" for reboot mode option. when i hit "n" it gives me (attachment).
but it won't let me move up or down to select except for the 1st option
Help would be very appreciated
Click to expand...
Click to collapse
During reboot it should automatically go to CWM because everything else is wiped. The boot menu only lets you make the first choice because that is all that is there, everything else is wiped. You need to continue to use the CWM to flash the format zip next. Then you can flash a ROM. If the CWM that pops up is not working, use the bootable CWM SD.
leapinlar said:
During reboot it should automatically go to CWM because everything else is wiped. The boot menu only lets you make the first choice because that is all that is there, everything else is wiped. You need to continue to use the CWM to flash the format zip next. Then you can flash a ROM. If the CWM that pops up is not working, use the bootable CWM SD.
Click to expand...
Click to collapse
Thx for replied, the Nook just stock on loading and it won't let me do anything except for power up and down
I was trying to install CM10 onto my Nook HD and I somehow screwed it up. I flash ROMS all the time on my MyTouch 4G and i am not a complete stranger to flashing, but I messed it up some how. Now the Nook HD will get past the Nook Banner. I tried a hard reset but it gets like 98% then shuts off. I can still insert an SD and access CWM but nothing will flash and i get this error when I try to do anything.
E: Can't mount /cache/recovery/command
E: Can't mount /cache/recovery/log
E: Can't open /cache/recovery/log
E: Can't mount /cache/recovery/last_log
E: Can't open /cache/recovery/last_log
I made a backup on the internal SD but it says there are no files in recovery. I am at a loss. This is my first post I am hoping someone would have an idea.
Thanks
If you tried a hard reset, the first thing it does is format everything. That is why you no longer have a backup on internal memory. Never store backups on internal memory without copying them to SD or your PC for safekeeping. It is the first thing lost on a reset.
Those cache errors mean that the cache partition is not formatted. You need to boot to a CWM SD for stock and format /system, /cache and /data. Then flash the plain stock 2.0.0 stock ROM that I have linked in my HD/HD+ CWM thread. Then you can boot to it, let it update and register again.
Then you can start over with CM10 to SD. And when you said you tried to install it earlier, I hope you meant install to SD. It cannot be installed to internal memory.
Sent from my Nook HD+ running CM10 on Hybrid SD
I'm the same situation. The problem is that these partitions are physically gone.
How do we recreate them? It sounds like something that has to be done using adb, a disk partioning utility (fdisk maybe?) and the names of the devices that need to be created, and then marking /boot as boot.
I've tried to format /cache and the other partitions but it says they don't exist. This problem is also preventing me from installing images including the stock Nook HD software, too, which apparently needs these partitions to exist already.
Thanks in advance for any advice.
aegrotatio said:
I'm the same situation. The problem is that these partitions are physically gone.
How do we recreate them? It sounds like something that has to be done using adb, a disk partioning utility (fdisk maybe?) and the names of the devices that need to be created, and then marking /boot as boot.
I've tried to format /cache and the other partitions but it says they don't exist. This problem is also preventing me from installing images including the stock Nook HD software, too, which apparently needs these partitions to exist already.
Thanks in advance for any advice.
Click to expand...
Click to collapse
I will give you two clues, then do some research.
First to understand the HD/HD+ partition structure, go to my HD/HD+ Tips thread linked in my signature and read item 16.
Second, the HD/HD+ uses a GPT partition structure rather than the standard DOS MBR structure. You need to use gdisk instead of fdisk. Search the Nook Tablet forum to understand a little more about gdisk and GPT. The NT also uses it.
Sent from my Nook HD+ running CM10.1 on emmc.
leapinlar said:
I will give you two clues, then do some research.
First to understand the HD/HD+ partition structure, go to my HD/HD+ Tips thread linked in my signature and read item 16.
Second, the HD/HD+ uses a GPT partition structure rather than the standard DOS MBR structure. You need to use gdisk instead of fdisk. Search the Nook Tablet forum to understand a little more about gdisk and GPT. The NT also uses it.
Sent from my Nook HD+ running CM10.1 on emmc.
Click to expand...
Click to collapse
Thanks for the clues. I was hoping someone could have a plug-and-play solution for this that I can use.
But, I'll see what I can do to solve this puzzle but I'm about to mail this thing to someone who can restore it and buy a new one at this point.
.
bricked my nook hd+
Hi guys, I'm a noob and yet I took a chance to upgrade my nook hd+ into CM 10.2. On the initial boot with CWM sd card, my nook recognized it right away. I followed "installing cyanogenmod 10.2(instead of 10.1) for dummies After much trouble I was able to "reboot system now". Now as I rebooted from the CWM 10.2 install, all I get is an initial boot with nook for a few seconds which flashes in and out then switches to the cyanogen universal bootloader after power button is pressed a number of times. Then much to my surprise it loaded the page EMMC CWM Based recovery v6.0.3.2. I pressed reboot system now but it didn't load CWM cyanogenmod but only loads nook's initial boot page, flashes same page in & out, then after pressing on the power button a number of times, would switch to the cyanogen universal bootloader, pressing the power button some more brings the screen to EMMC CWM Based recovery v6.0.3.2. The choices here are: 1. reboot system now, 2. install zip from sd card (CWM sd card is still inserted in nook hd+), 3. install zip from sideload, 4. wipe data/factory reset, 5. wipe cache partition, 6. backup and restore, 7. mount & storage, and 8. advanced. What should be done from here? PLEASE HELP. Thanks
newbienyc said:
Hi guys, I'm a noob and yet I took a chance to upgrade my nook hd+ into CM 10.2. On the initial boot with CWM sd card, my nook recognized it right away. I followed "installing cyanogenmod 10.2(instead of 10.1) for dummies BUT when I was about to "reboot system now", instead of pressing the n button, the power button was pressed. Now as I rebooted from the CWM 10.2 install, all I get is an initial boot with nook for a few seconds and switches immediately to the cyanogen universal bootloader and NEVER progresses but simply stays there. The only way to turn it off is by pressing on the power button to shut it off. Is the nook hd+ rendered useless from now on?Is there any remedy to this? If and when I download and write on another microsd card the nook 2.1 zip to revert to the original nook will the nook hd+ be able to recognize the microsd card and boot from it? Thank you.
Click to expand...
Click to collapse
Quick question leapinlar. Does the 8 failed boots hard reset also restore the /boot partition to stock given your recovery is stock and not cwm or other?
ididitforthenookie said:
Quick question leapinlar. Does the 8 failed boots hard reset also restore the /boot partition to stock given your recovery is stock and not cwm or other?
Click to expand...
Click to collapse
You need stock recovery still on internal memory for the 8 failed boot to work. But if it works, everything is completely back to stock, including /boot.
Sent from my Nook HD+ running CM10.1 on emmc.
newbienyc said:
Hi guys, I'm a noob and yet I took a chance to upgrade my nook hd+ into CM 10.2. On the initial boot with CWM sd card, my nook recognized it right away. I followed "installing cyanogenmod 10.2(instead of 10.1) for dummies BUT when I was about to "reboot system now", instead of pressing the n button, the power button was pressed. Now as I rebooted from the CWM 10.2 install, all I get is an initial boot with nook for a few seconds and switches immediately to the cyanogen universal bootloader and NEVER progresses but simply stays there. The only way to turn it off is by pressing on the power button to shut it off. Is the nook hd+ rendered useless from now on?Is there any remedy to this? If and when I download and write on another microsd card the nook 2.1 zip to revert to the original nook will the nook hd+ be able to recognize the microsd card and boot from it? Thank you.
Click to expand...
Click to collapse
The only 10.2 out yet is an SD install. If you haven't already, I would suggest to power off, remove the SD card and try booting from internal storage.
Sent from my HD+ Running CM 10.1 from emmc
Sherip said:
The only 10.2 out yet is an SD install. If you haven't already, I would suggest to power off, remove the SD card and try booting from internal storage.
Sent from my HD+ Running CM 10.1 from emmc
Click to expand...
Click to collapse
Hi, thanks for the quick response. Do you mean rebooting the nook hd+ without the CWM sd card? Yes, I've done this step to no avail. It would boot to the EMMC CWM based recovery v6.0.3.2. I've to be honest, whilst waiting for a response, I tried to remedy the situation by trying to install CWM 10.1 but the upgrade cannot get installed, then the android mascot just seemed to die (open chest with an exclamation point inside a red triangle). Does this mean it's irreparable?
newbienyc said:
Hi, thanks for the quick response. Do you mean rebooting the nook hd+ without the CWM sd card? Yes, I've done this step to no avail. It would boot to the EMMC CWM based recovery v6.0.3.2. I've to be honest, whilst waiting for a response, I tried to remedy the situation by trying to install CWM 10.1 but the upgrade cannot get installed, then the android mascot just seemed to die (open chest with an exclamation point inside a red triangle). Does this mean it's irreparable?
Click to expand...
Click to collapse
As Sherip said, the CM10.2 is an SD install only. You should not have been following the Dummies guide for installing that. That is for installing to internal memory. You need to go to my HD/HD+ CWM thread linked in my signature and put stock recovery back on internal. I have a link to it in my item 5 in that thread. Then the device can successfully do an 8 failed boot to get back to stock.
Sent from my Nook HD+ running CM10.1 on emmc.
leapinlar said:
As Sherip said, the CM10.2 is an SD install only. You should not have been following the Dummies guide for installing that. That is for installing to internal memory. You need to go to my HD/HD+ CWM thread linked in my signature and put stock recovery back on internal. I have a link to it in my item 5 in that thread. Then the device can successfully do an 8 failed boot to get back to stock.
Sent from my Nook HD+ running CM10.1 on emmc.
Click to expand...
Click to collapse
Thanks. (sorry for being such a dummy) I tried flashing NookHDpus-emmc-...zip to my nook hd+ but this is the response I get each time I try and choose zip from sdcard, E: Can't mount /sdcard?
ididitforthenookie said:
Quick question leapinlar. Does the 8 failed boots hard reset also restore the /boot partition to stock given your recovery is stock and not cwm or other?
Click to expand...
Click to collapse
Forgive me but does 8 failed boots mean turning on my nook and the initial phase of boot-up with"nook" just fades in and out and does hard reset mean pressing on power and n buttons simultaneously till it comes on? Thanks
newbienyc said:
Forgive me but does 8 failed boots mean turning on my nook and the initial phase of boot-up with"nook" just fades in and out and does hard reset mean pressing on power and n buttons simultaneously till it comes on? Thanks
Click to expand...
Click to collapse
It means
1. turn on the nook,
2. when it starts to boot up press and hold power until it turns off.
3. turn it back on,
4. repeat steps 2 & 3 8x.
It needs to be 8 "failed" boots, that get interrupted before it has a chance to get all the way through the process.
bpaulien said:
It means
1. turn on the nook,
2. when it starts to boot up press and hold power until it turns off.
3. turn it back on,
4. repeat steps 2 & 3 8x.
It needs to be 8 "failed" boots, that get interrupted before it has a chance to get all the way through the process.
Click to expand...
Click to collapse
I did this twice and it booted up alright but right into this screen "EMMC CWM based recovery v6.0.3.2". I'm at myself, but I thank you all for your best efforts at helping me .
newbienyc said:
I did this twice and it booted up alright but right into this screen "EMMC CWM based recovery v6.0.3.2". I'm at myself, but I thank you all for your best efforts at helping me .
Click to expand...
Click to collapse
8 failed boots will not work unless you have stock recovery still on emmc. It looks like you replaced stock recovery with CWM. You either have to flash a stock ROM (which also replaces the CWM with stock recovery) or you need to flash my stock recovery zip from my HD/HD+ CWM thread linked in my signature.
Sent from my Nook HD+ running CM10.1 on emmc.
leapinlar said:
8 failed boots will not work unless you have stock recovery still on emmc. It looks like you replaced stock recovery with CWM. You either have to flash a stock ROM (which also replaces the CWM with stock recovery) or you need to flash my stock recovery zip from my HD/HD+ CWM thread linked in my signature.
Sent from my Nook HD+ running CM10.1 on emmc.
Click to expand...
Click to collapse
Thanks, I will be following your instruction (perhaps flash your stock ROM) with a new microsd card. :fingers-crossed: Hope i'll get it right this time.
leapinlar said:
8 failed boots will not work unless you have stock recovery still on emmc. It looks like you replaced stock recovery with CWM. You either have to flash a stock ROM (which also replaces the CWM with stock recovery) or you need to flash my stock recovery zip from my HD/HD+ CWM thread linked in my signature.
Sent from my Nook HD+ running CM10.1 on emmc.
Click to expand...
Click to collapse
I did try using a new sd card and an old one, both failed; why is the message always "E: Can't mount /sdcard/"? I was hoping to sideload but my laptop cannot even recognize the nook attached by usb.
newbienyc said:
I did try using a new sd card and an old one, both failed; why is the message always "E: Can't mount /sdcard/"? I was hoping to sideload but my laptop cannot even recognize the nook attached by usb.
Click to expand...
Click to collapse
I don't know why it gives you that error message. I recommend you go to my HD/HD+ CWM thread linked in my signature and make one of my CWM bootable SDs from item 1. Then flash my plain stock 2.1.0 zip from my item 6.
Sent from my Nook HD+ running CM10.1 on emmc.
leapinlar said:
I don't know why it gives you that error message. I recommend you go to my HD/HD+ CWM thread linked in my signature and make one of my CWM bootable SDs from item 1. Then flash my plain stock 2.1.0 zip from my item 6.
Sent from my Nook HD+ running CM10.1 on emmc.
Click to expand...
Click to collapse
I'll do that, thanks.
So my Nook HD+ has been running Evergreen's CM 10.1 EMMC fine for a couple weeks. I've had some lag issues so I ran Lagfix and it worked great (though that's another topic). Today, I ran Lagfix again and my HD+ froze. I pressed the power button for 12 seconds to shut it off and it wouldn't boot, just a black screen. Crap.
Ok, no panic. I try pressing the power button for 30 seconds, plug it in, etc. Nothing. Ok, no biggie, going to have to reflash, right? So I download the updated 6/13 Cm10.1 EMMC, copy it over to my CWM SD card, stick it into my HD+ and boot. Boots into CWM no problem. First thing I see is:
E:Can't mount /cache/recovery/command
E:Can't mount /cache/recovery/log
E:Can't open/cache/recovery/log
E:Can't mount /cache/recovery/last_log
E:Can't open/cache/recovery/last_log
Click to expand...
Click to collapse
Well I've seen that before, so I don't panic as I seem to recall its not a serious error. So I wipe cache thinking that maybe its corrupted. Not sure if that was smart or stupid but it seems it doesn't matter, because I try and install from SDcard and I get can't mount SDcard. Yikes! I choose install from internal SD and I get can't mount EMMC. Yikes!! I try and restore a backup, there is no backup as sdcard can't mount! Ok so I reboot and try it again a few times, the same error. I try running chkdsk on the SD card on my desktop and it checks out fine, no errors. I tried swapping in another clean and newly formatted fat32 SD card with only CM10.1 on it and it won't mount either.
I try going to advance->boot to recovery and pull out the sdcard. My HD+ boots and then is stuck at the screen where it says "NOOK" in white. Right before recovery should load. Its like recovery is missing or something.
Ok, I'm getting nervous that I have a serious problem. I boot my CWM SD card again and plug the HD+ into my desktop (Windows) and run ADB. I can adb shell, so I try and mount sdcard from the shell. I get
mount: mounting /dev/block/mmcblk1p1 on /sdcard failed: no such file or directory.
Click to expand...
Click to collapse
Ok, lets try sideload: adb sideload cm.zip.
failed to write data 'protocol fault (no status)
Click to expand...
Click to collapse
Ok, I have a trick I did one time before when I had a similar problem. I try and run:
adb shell mount -t tmpfs none /sdcard
This should mount my ram as sdcard and then I can push the rom to ram and flash from there. However, the error I get is like tmpfs doesn't exist. Ok, I am no expert so at this point I am stuck.
I didn't want to wipe anything yet as I don't know what that would do. At this point being able to boot into my CWM SD card is the only thing that works and I don't want to mess with it as I am now out of my knowledge area.
Anyone know what I can do here? I mean I can't restore a backup or flash a new rom. Does the HD+ have a download mode so I can use Odin? Is fastboot an option here? I am a few days behind on my backup but I can live with a factory reset if that is called for, no problem.
I've hit panic time, please help! Thanks!
Isn't lagfix that zip that reformats your partitions? How did you flash that on an HD+?
Sent from my Galaxy Tab 2 using XDA Premium
leapinlar said:
Isn't lagfix that zip that reformats your partitions? How did you flash that on an HD+?
Sent from my Galaxy Tab 2 using XDA Premium
Click to expand...
Click to collapse
I'm glad you saw this, as I could use your Nook guruness right about now. This is it: https://play.google.com/store/apps/details?id=com.grilledmonkeydonate.lagfix&feature=search_result. Its just a GUI for fstrim and it runs it on /data.
Is there a download mode on the Nook by any chance? If I could Odin this rom on there, I think I'd be all set, but I have to say, the fact that CWM SD can't mount or find EMMC has me worried.
silkshadow said:
I'm glad you saw this, as I could use your Nook guruness right about now. This is it: https://play.google.com/store/apps/details?id=com.grilledmonkeydonate.lagfix&feature=search_result. Its just a GUI for fstrim and it runs it on /data.
Is there a download mode on the Nook by any chance? If I could Odin this rom on there, I think I'd be all set, but I have to say, the fact that CWM SD can't mount or find EMMC has me worried.
Click to expand...
Click to collapse
That sounds like a dangerous thing to be playing with. There is not a download mode and Odin is for Samsung devices.
It sounds like you borked your partitions. Did you replace the stock recovery with CWM or TWRP?
Sent from my Nook HD+ running CM10.1 on emmc.
leapinlar said:
That sounds like a dangerous thing to be playing with. There is not a download mode and Odin is for Samsung devices.
It sounds like you borked your partitions. Did you replace the stock recovery with CWM or TWRP?
Sent from my Nook HD+ running CM10.1 on emmc.
Click to expand...
Click to collapse
I did initially (like 2 weeks ago) replace the stock recovery with TWRP. I've run TWRP backups a bunch since then. Of course, those are useless with CWM SD, but I have 2 CWM nandroids on my CWM SD (which I can't access since CWM can't mount the SD ). BTW I am using, and used originally, your CWM SD image.
If I screwed up my partitions, is there a fix I can perform from CWM SD or adb?
Edit: BTW, Lagfix also runs fstrim on /cache as well, I had forgotten.
silkshadow said:
I did initially (like 2 weeks ago) replace the stock recovery with TWRP. I've run TWRP backups a bunch since then. Of course, those are useless with CWM SD, but I have 2 CWM nandroids on my CWM SD (which I can;t access since CWM can't mount the SD ). BTW I am using, and used originally, your CWM SD image.
If I screwed up my partitions, is there a fix I can perform from CWM SD?
Click to expand...
Click to collapse
If you had not replaced stock recovery with TWRP you could have done the 8 failed boot reset, but you cannot with TWRP. Also those TWRP backups are worthless because the TWRP emmc backup/restore is broken for the HD+.
You can try to repair the partitions with ADB when booted to CWM. First thing I would try is to DD the boot.img and recovery.img from your CWM backups. Boot.img goes to partition 4 and recovery.img goes to p3.
Sent from my Nook HD+ running CM10.1 on emmc.
leapinlar said:
If you had not replaced stock recovery with TWRP you could have done the 8 failed boot reset, but you cannot with TWRP. Also those TWRP backups are worthless because the TWRP emmc backup/restore is broken for the HD+.
You can try to repair the partitions with ADB when booted to CWM. First thing I would try is to DD the boot.img and recovery.img from your CWM backups. Boot.img goes to partition 4 and recovery.img goes to p3.
Sent from my Nook HD+ running CM10.1 on emmc.
Click to expand...
Click to collapse
I've actually been wanting to put CWM instead of TWRP, but I've been nervous about messing with recovery since I had a problem doing that on an old Samsung. Man I wish I had just bit the bullet and re-flashed CWM.
I know how to DD, but repairing the partitions is a step above what I've done before. Is there a tutorial on how to do this? Thanks!
Edit: Wait maybe I don't know how to DD. cat proc/mtd gives an error. How do I identify what to backup?
Edit2: Nevermind, I knew I saw it somewhere and there it is in your tips thread. Sorry, my bad. I'll report back after I have done it.
Ok, I'm stuck, sorry. How do I get the boot.img from my PC to my Nook? CWM won't mount SDcard. Can I just push the file to /data and then restore it from there?
Edit: Fastboot doesn't seem to work in CWM recovery?
silkshadow said:
Ok, I'm stuck, sorry. How do I get the boot.img from my PC to my Nook? CWM won't mount SDcard. Can I just push the file to /data and then restore it from there?
Click to expand...
Click to collapse
Maybe, if your /data is still ok.
Sent from my Nook HD+ running CM10.1 on emmc.
leapinlar said:
Maybe, if your /data is still ok.
Sent from my Nook HD+ running CM10.1 on emmc.
Click to expand...
Click to collapse
Thanks, trying it now.
Ok:
~ # dd if=/data/boot.img of=/dev/block/mmcblk0p4
dd if=/data/boot.img of=/dev/block/mmcblk0p4
32768+0 records in
32768+0 records out
16777216 bytes (16.0MB) copied, 0.445588 seconds, 35.9MB/s
~ # dd if=/data/recovery.img of=/dev/block/mmcblk0p3
dd if=/data/recovery.img of=/dev/block/mmcblk0p3
30720+0 records in
30720+0 records out
15728640 bytes (15.0MB) copied, 0.397918 seconds, 37.7MB/s
Click to expand...
Click to collapse
Ok, this is a stupid question but how do I tell if it worked? The HD still won't boot without CWM SD card and sdcard or EMMC doesn't mount in CWM SD. Reboot ot recovery in CWM SD, then removing SD card, still gives me "nook" start up screen hang.
Was /data able to take the *.img files? If so, would it be a good idea to push the cm 10.1 rom to it and try and do a full flash? That doesn't have a boot partition though, right?
Edit: BTW, /data was empty in adb shell (except for the 2 img files i pushed there). There was a "media" subdir but it was also empty.
silkshadow said:
Ok:
Ok, this is a stupid question but how do I tell if it worked? The HD still won't boot without CWM SD card and sdcard or EMMC doesn't mount in CWM SD. Reboot ot recovery in CWM SD, then removing SD card, still gives me "nook" start up screen hang.
Click to expand...
Click to collapse
Take the card out, boot holding the power and n key. It should try to boot to recovery. Which backup did you use, stock or one you did after the CM10.1 install?
Sent from my Nook HD+ running CM10.1 on emmc.
leapinlar said:
Take the card out, boot holding the power and n key. It should try to boot to recovery. Which backup did you use, stock or one you did after the CM10.1 install?
Sent from my Nook HD+ running CM10.1 on emmc.
Click to expand...
Click to collapse
The HD still doesn't boot at all without the CWM SD card in. Just black screen. I can get it to boot without the SD card only if I choose advanced->boot to recovery in CWM SD. Then it just hands at the "nook" screen (the one before Cyanogenmod boot universal boot should appear).
I *think* it was the one from CM 10.1 but I cannot be 100% sure. Its the last backup I did on the CWM SD, and I recall thinking that I should have a backup of CM 10.1 but sometimes I am an idiot and don't listen to myself.
silkshadow said:
Was /data able to take the *.img files? If so, would it be a good idea to push the cm 10.1 rom to it and try and do a full flash? That doesn't have a boot partition though, right?
Edit: BTW, /data was empty in adb shell (except for the 2 img files i pushed there). There was a "media" subdir but it was also empty.
Click to expand...
Click to collapse
no, putting the CM10.1 rom zip on /data will do no good. You can't get to it to flash it. And the cm zip does include the boot partition.
/data being empty means that data was wiped somehow.
Sent from my Nook HD+ running CM10.1 on emmc.
---------- Post added at 09:20 AM ---------- Previous post was at 09:16 AM ----------
silkshadow said:
The HD still doesn't boot at all without the CWM SD card in. Just black screen. I can get it to boot without the SD card only if I choose advanced->boot to recovery in CWM SD. Then it just hands at the "nook" screen (the one before Cyanogenmod boot universal boot should appear).
I *think* it was the one from CM 10.1 but I cannot be 100% sure. Its the last backup I did on the CWM SD, and I recall thinking that I should have a backup of CM 10.1 but sometimes I am an idiot and don't listen to myself.
Click to expand...
Click to collapse
It would be best if you could restore the boot and recovery from a stock backup. Then stock can try to repair itself.
Edit: if it will not turn on without the SD inserted, you may have also messed up xloader and bootloader partitions.
Sent from my Nook HD+ running CM10.1 on emmc.
leapinlar said:
no, putting the CM10.1 rom zip on /data will do no good. You can't get to it to flash it. And the cm zip does include the boot partition.
/data being empty means that data was wiped somehow.
Sent from my Nook HD+ running CM10.1 on emmc.
Click to expand...
Click to collapse
Ouch but /data loss is not too big, especially at this point. I just want to say you are awesome and thank you so much for helping me here! Anything I can do next? I am not sure what I could've done to wipe data. My HD was lagging a bit today but nothing serious. Just ran lagfix and it froze, but as soon as it froze I shut the Nook down.
Is it strange that I cannot mount EMMC? Is it possible that CWM is not seeing /data on EMMC but just a virtual /data?
Edit: Ok, will try to restore from stock imgs right now.
Ok these are definitely the stock boot and recovery CWM backup images:
~ # dd if=/data/recovery.img of=/dev/block/mmcblk0p3
dd if=/data/recovery.img of=/dev/block/mmcblk0p3
30720+0 records in
30720+0 records out
15728640 bytes (15.0MB) copied, 0.401123 seconds, 37.4MB/s
~ # dd if=/data/boot.img of=/dev/block/mmcblk0p4
dd if=/data/boot.img of=/dev/block/mmcblk0p4
32768+0 records in
32768+0 records out
16777216 bytes (16.0MB) copied, 0.443817 seconds, 36.1MB/s
Click to expand...
Click to collapse
Here's a strange thing. I was expecting to have to go into /data and delete the older boot.img and recovery.img before pushing the new ones. However, /data was empty again.
Ok stock img (I hope) were restored. HD will still not boot (black screen) :crying:. CWM SD advanced ->boot to recovery still hangs at "nook" boot screen the first time. The 2nd time, just black screen and now nothing but black screens.
More weirdness, I've had to plug the HD in and hold down the power button to get it to boot off the CWM SD card every time I take the CWM SD card out and try to boot without it. I just noticed that when I do this the charge light is green and stays green until CWM loads and then it turns amber.
Could this be a bootloader issue? Is there a way to restore that too?
silkshadow said:
Ok these are definitely the stock boot and recovery CWM backup images:
Here's a strange thing. I was expecting to have to go into /data and delete the older boot.img and recovery.img before pushing the new ones. However, /data was empty again.
Ok stock img (I hope) were restored. HD will still not boot (black screen) :crying:. CWM SD advanced ->boot to recovery still hangs at "nook" boot screen the first time. The 2nd time, just black screen and now nothing but black screens.
More weirdness, I've had to plug the HD in and hold down the power button to get it to boot off the CWM SD card every time I take the CWM SD card out and try to boot without it. I just noticed that when I do this the charge light is green and stays green until CWM loads and then it turns amber.
Could this be a bootloader issue? Is there a way to restore that too?
Click to expand...
Click to collapse
When you say black screen without the SD in, you mean it will not turn on?
It looks like the stock stuff took. I might be able to post my stock Xloader and bootloader img files for you. Hang on.
Sent from my Nook HD+ running CM10.1 on emmc.
leapinlar said:
When you say black screen without the SD in, you mean it will not turn on?
It looks like the stock stuff took. I might be able to post my stock Xloader and bootloader img files for you. Hang on.
Sent from my Nook HD+ running CM10.1 on emmc.
Click to expand...
Click to collapse
Yes, It doesn't seem to boot at all.
You.Rule. Thanks!
silkshadow said:
Yes, It doesn't seem to boot at all.
You.Rule. Thanks!
Click to expand...
Click to collapse
try dding these.
http://d-h.st/SG6
Sent from my Nook HD+ running CM10.1 on emmc.
Thank you very much! I will download and DD right now.
Hi all,
I run CM10.1 on my phone but am new to the Nook HD+. I have emmc-cwm-early2.1.img dd-ed to an SD card, and it boots just fine. I have cm-10.1-20130719-UNOFFICIAL-ovation-emmc.zip downloaded on the Nook. The problem I'm encountering is that backups are failing with "Can't mount /system!" after boot is backed up. It seems foolish to flash any ROM without an initial nandroid backup.
If I select advanced->show log I see this line:
W: failed to mount /dev/block/mmcblk1p2 (Invalid argument)
However, the Nook boots just fine into my unmodified stock if I remove the SD card.
Help? Thanks!
crazybikeperson said:
Hi all,
I run CM10.1 on my phone but am new to the Nook HD+. I have emmc-cwm-early2.1.img dd-ed to an SD card, and it boots just fine. I have cm-10.1-20130719-UNOFFICIAL-ovation-emmc.zip downloaded on the Nook. The problem I'm encountering is that backups are failing with "Can't mount /system!" after boot is backed up. It seems foolish to flash any ROM without an initial nandroid backup.
If I select advanced->show log I see this line:
W: failed to mount /dev/block/mmcblk1p2 (Invalid argument)
However, the Nook boots just fine into my unmodified stock if I remove the SD card.
Help? Thanks!
Click to expand...
Click to collapse
If you are trying to backup to the sdcard, there is not enough room there to hold a complete backup. It usually fails about the time it gets to /system. The solution is to backup to internal memory where it has plenty of room. That mmcblk1p2 failure is just not finding the sd-ext partition on SD. A normal error.
Sent from my Galaxy Tab 2 using XDA Premium
leapinlar said:
If you are trying to backup to the sdcard, there is not enough room there to hold a complete backup. It usually fails about the time it gets to /system. The solution is to backup to internal memory where it has plenty of room. That mmcblk1p2 failure is just not finding the sd-ext partition on SD. A normal error.
Sent from my Galaxy Tab 2 using XDA Premium
Click to expand...
Click to collapse
"backup to internal sdcard" failed as well with "Can't mount /system!"
crazybikeperson said:
"backup to internal sdcard" failed as well with "Can't mount /system!"
Click to expand...
Click to collapse
Go to my HD/HD+ CWM thread linked in my signature and try one of my 6.0.2.8 CWM SDs from item one. Try backing up with it.
Sent from my Galaxy Tab 2 using XDA Premium
leapinlar said:
Go to my HD/HD+ CWM thread linked in my signature and try one of my 6.0.2.8 CWM SDs from item one. Try backing up with it.
Sent from my Galaxy Tab 2 using XDA Premium
Click to expand...
Click to collapse
That seemed to work. I also flashed an sdcard version of CM10.1 and it boots. However, I forgot to install gapps. Now I can't seem to get the Nook to boot into recovery - it only wants to boot CM10.1. Sigh.
crazybikeperson said:
That seemed to work. I also flashed an sdcard version of CM10.1 and it boots. However, I forgot to install gapps. Now I can't seem to get the Nook to boot into recovery - it only wants to boot CM10.1. Sigh.
Click to expand...
Click to collapse
When the cyanoboot logo first comes up, hold the power and n button together for a few seconds and release. It should boot to CWM.
Sent from my Nook HD+ running CM10.1 on emmc.
leapinlar said:
When the cyanoboot logo first comes up, hold the power and n button together for a few seconds and release. It should boot to CWM.
Sent from my Nook HD+ running CM10.1 on emmc.
Click to expand...
Click to collapse
Unfortunately that didn't work. What did work was replacing the bootfiles on the sdcard... but recovery can't find the gapps .zip file, or anything I downloaded while running CM. I reinstalled CM, and now I can't get back into recovery.
Ugh, this is hard. I'm starting to regret buying it, since the point was to put CM on it.
crazybikeperson said:
Unfortunately that didn't work. What did work was replacing the bootfiles on the sdcard... but recovery can't find the gapps .zip file, or anything I downloaded while running CM. I reinstalled CM, and now I can't get back into recovery.
Ugh, this is hard. I'm starting to regret buying it, since the point was to put CM on it.
Click to expand...
Click to collapse
You need to go to settings and about tablet. Tap the build number several times until developer options is activated. Then go to developer options and check off advanced reboot. Then when you choose reboot on the power off menu, recovery shows.
Sent from my Nook HD+ running CM10.1 on emmc.
leapinlar said:
You need to go to settings and about tablet. Tap the build number several times until developer options is activated. Then go to developer options and check off advanced reboot. Then when you choose reboot on the power off menu, recovery shows.
Sent from my Nook HD+ running CM10.1 on emmc.
Click to expand...
Click to collapse
I tried that in the beginning. It just rebooted into CM.
crazybikeperson said:
I tried that in the beginning. It just rebooted into CM.
Click to expand...
Click to collapse
You have all your boot files all mixed up. I give up.
Sent from my Nook HD+ running CM10.1 on emmc.
In order to fully erase my tab from previous contents, I wiped data/factory reset, cache partition,dalvik cache and then went to mount and storage and formatted /system,/cache,/sdcard,/data,/data and /data/media options. Now while I am trying to install the rom from sd card, it shows
"Couldn't open directory
No files found" for all of my 3 sd cards.
Now I'm kinda stuck in CWM. If I go to advanced and either select reboot recovery or reboot to bootloader option, will my Nook HD+ brick? Is there any other options for me?
It should not brick. But it will also not boot because you wiped /system. You need to put a plain SD in the slot with your ROM zip on it and power off, then boot holding the power and n key together for a few seconds, releasing the power key first followed by releasing the n key. It then should boot to CWM where you can flash the ROM zip again. Don't be so quick to format so many things you know nothing about next time.
Sent from my BN NookHD+ using XDA Premium HD app
leapinlar said:
It should not brick. But it will also not boot because you wiped /system. You need to put a plain SD in the slot with your ROM zip on it and power off, then boot holding the power and n key together for a few seconds, releasing the power key first followed by releasing the n key. It then should boot to CWM where you can flash the ROM zip again. Don't be so quick to format so many things you know nothing about next time.
Sent from my BN NookHD+ using XDA Premium HD app
Click to expand...
Click to collapse
Thanks for the help leapinlar. I did what you said and now it's stuck at "cynaboot universal bootloader" page for about the last five minutes.
Thank you leapinlar. I searched the forum for boot loader loop and found your 4gb CWM bootable sd card image and it helped me get past the bootloader loop. Now reinstalled CM 11 snapshot 12 and learnt to live with battery issue. Thanks again for the help.