Database Develop

[Q] Cyanogenmod 7.1 & Link2sd: Oil & Water?

Today I finally updated my Nexus One to CM 7.1 RC1. Everything in the update went fine, phone booted up perfect.
But I'm having some serious issues getting Link2sd to work now. I first tried using a ext2 partition that was already on my sd card from before. Kept getting this error message from link2sd, no matter how many times I rebooted:
Mount script cannot be created.
mount: mounting /dev/block/vold/179:2 on /data/sdext2 failed: device or resource busy
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I then wiped the ENTIRE SD card, which included destroying the ext2 partition. From my newly blank SD card, I created a 2nd partition using MiniTool Partition Wizard in an ext4 format. Uninstalled Link2SD, reinstalled, opened the app - and I have the exact same error message:
Mount script cannot be created.
mount: mounting /dev/block/vold/179:2 on /data/sdext2 failed: device or resource busy
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Click to collapse
What am I doing wrong here? I've also tried using a FAT32 partition, but using that I got a similar Mount Script cannot be created error except it was an I/O error - whatever that is.
Please, someone, anyone, tell me this can be fixed and it's not an issue with CM7.1RC1.

When you did the wipe did you do it full wipe (erase on)? If not then try that. Also try in an ext3 partition.

Dude Random21 said:
When you did the wipe did you do it full wipe (erase on)? If not then try that. Also try in an ext3 partition.
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Thanks for the suggestions. Unfortunately I have tried both of those to no avail. I always do a full wipe when updating ROMs, so that's never really been the issue. Tried ext3 twice. Both times I got Mount-Script-Creation errors (device or resource busy).

Sorry my bad when I said full wipe I meant for the SD card because it's happened to me once I did a quick wipe and it still didn't work then I did a full wipe and it worked.

Dude Random21 said:
Sorry my bad when I said full wipe I meant for the SD card because it's happened to me once I did a quick wipe and it still didn't work then I did a full wipe and it worked.
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What did you do a full wipe with? I'm guessing Amon Ra from your signature?

Actually no I did it from my computer with this http://www.sdcard.org/consumers/formatter_3/ just go into option and put "FULL (Erase)".

Alrighty I'll give it a shot and let ya know. Thanks.
EDIT: Tried...epic fail. Still the same error.

In that casse I'm kind of running out of ideas maybe link2sd isn't compatible with cm7.1-rc1 yet?? If I were you I would try DT, s2e or some other app2ext solution and see if one of those work (DT is usually the one that works the best).

ISSUE RESOLVED.
Sort of.
Did clean wipe of everything (except boot, of course) using Amon Ra.
Downgraded back to CM 7.0.3 (using Amon Ra)
Flashed DTAPPS
a2sd cachesdreset
a2sd install
Installed Link2SD
mount -o /data/sdext2
Set partition type in Link2sd to ext2 (which is very odd considering I know I partitioned a ext3 filesystem in Amon Ra...but whatever)
Reboot
Link2Sd works perfect
Now I gotta figure out how to make DTAPPS go away. I've heard it's counterproductive to have them both on there. We'll see.

Ok that's cool I'm glad you got it resolved and AFAIK it might cause problems but if it works for now why mess with it... Oh right cause it's fun

Dude Random21 said:
Ok that's cool I'm glad you got it resolved and AFAIK it might cause problems but if it works for now why mess with it... Oh right cause it's fun
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Click to collapse
Figured out a better workaround method. LINK

Will an ext4 partition do as well in this case?

SmallWalrus said:
Will an ext4 partition do as well in this case?
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Good question, didn't try it. I used ext3. The original a2ext mod method designed by icecreamisdrugs was meant to be used with an ext3 filesystem, and that's the method that I borrowed for my workaround. I imagine as long as you're using a CM ROM it should work fine. But don't quote me on that.

Bling_Diggity said:
Figured out a better workaround method. LINK
Click to expand...
Click to collapse
Can work with Motorola Milestone? Thx... I read the other post that u linked here.
P.D.: ops, I use HO!NO cm7 Gingerbread for Milestone

[Q] DT a2sd on cm7.1

Need help guys!
Today i flashed cm7.1 on my N1
(B4 i was using cm6 rc1 with DT a2sd)
Cm7.1 works great but i need a2sd for more space
After i flash DT a2sd beta 4 , i entered into boot loop
My phone wont boot
Whats the problem?? do i need to wipe sd-ext also
(As it may contain previous rom's app data?)
Thanks in advance

Please help!

wipe everything including sd ext or use nandroid backup if any( i usually make backup before flashing dta2sd ).if ur using cm 7.1 u can try S2E app available in market which does the pretty same job but its with gui so its easy to operate

amolji said:
wipe everything including sd ext or use nandroid backup if any( i usually make backup before flashing dta2sd ).if ur using cm 7.1 u can try S2E app available in market which does the pretty same job but its with gui so its easy to operate
Click to expand...
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Thanks for the reply!! m i right tht wiping sd ext wont format files on sd card?(fat i mean)

I still get into boot loop after wiping sd-ext b4 installing DT a2sd
is there anything to do with the kernal

I would try doing a full wipe (including system) then flash everything a new. ROM, gapps then DT. If you don't want to lose your app data just backup with titanium backup.

Dude Random21 said:
I would try doing a full wipe (including system) then flash everything a new. ROM, gapps then DT. If you don't want to lose your app data just backup with titanium backup.
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Thx for the reply! i hv tried wipe system also. Still failed...
And yesterday i tried another a2sd method with s2e...
Everytime stuck at X screen during restart

Which recovery are you using? - your ext may be messed up...

CM7, MIUI EXT3 or EXT4

I'd like to flash MIUI or CM7. Right now i'm using Gueste. Should i go back to EXT3 or just wipe everything and install MIUI or CM7. I'm a bit confused, because i searced before posting and others say that MIUI/CM7 are EXT4, others that you must flash back to EXT3. What's true?

Just install CM7
Older releases was EXT3, but since their stable build CM7 are EXT4.
No need for format.
You might need a data wipe anyway, so do a backup before installing.

You need to wipe all system for installing those ROM. And to be sure use back to ext3, it's always better to do this as ROM that run ext4 make the conversion anyway.

Hello!
As always do a backup first - SMS, contacts, calendar via MyPhoneExplorer and Apps via Titanium backup.
You can to a full wipe from cwm and then install the latest CM7-Kang - and don't forget gapps...
...afterwards you can reinstall you data and you are good to go.
CM7 support both EXT3 and EXT4 – and usually does a EXT4-conversion on the way.
I don’t see any necessity to go back to EXT3 on the way…

flash miui rom (you will find a lot of roms in dev section) or latest cm7 kang. it's your decision, both rom's are stable.
but go back to EXT3 first. that's the safe way

How to check EXT3 or EXT4 on LG O2X

How to check partition EXT3 or EXT4 on LG O2X, coz i have nandroid backup of 2.3.4 when i tried to restore on cm7 it stucks on lg logo, i used nvflash method http://forum.xda-developers.com/showthread.php?t=1007825 now im on stock 2.2 so want to sure the partition before to try nandroid restore.

I hade that once .. if u r still stuck on lg logo, then unplug battery and then plug it .. hopefully it will resolve this .. this froyo rom is EXT3 .. u have to root and install recovery first if u want to restore ..

You can try nvflash rom directly.
The official rom is ext4 format.

Stock ROM is ext 3, flash BackToExt3 from recovery and then restore.

i want to know too how to check that im on miui latest

dandeli21 said:
i want to know too how to check that im on miui latest
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Install Android System Info from the Market. Then go to Mount Points and you'll get the FS of all the partitions. Look for /system /data and /cache.
MUI which is CM based should be EXT4. Stock LG roms are EXT3 and will be the same until they update the kernel.
Cheers!

el_charlie said:
Install Android System Info from the Market. Then go to Mount Points and you'll get the FS of all the partitions. Look for /system /data and /cache.
MUI which is CM based should be EXT4. Stock LG roms are EXT3 and will be the same until they update the kernel.
Cheers!
Click to expand...
Click to collapse
thanks for the info

create ext4 for use with a2sd

hi,
i'm usin ra passion 2.2.1 and wan't to use a2sd from ics 4.0.3 evervolv. how can i create a part ext4?

Google:
"a2sd partition sd card".
Enjoy.

Try 4EXT recovery www.4ext.net
I think its the easiest way to create partition.
Or else you can do it in pc via partition managers(i use minitool partition wizard)
You can google it and also can search in youtube for video tutorials.
Sent from my Nexus One using Tapatalk

thanks for your help, i've done it in recovery.
one question is left:
what happen if i format the partioned sd-card under windows and do a full wipe in preparation for installing a new rom. i've read sd-ext even survive a full wipe? what does that mean? stays the partition untouched when i format the sd-card with windows? and what about the apps in the partition? are they still there even after a full wipe and can i use them after flashing a new rom out of the box?

Glad u succeeded in partitioning
Now if you format the fat32 partition in windows using those partition tools doesnt affect ur ext. Ext stays untouched but all the data on fat32 will be wiped(so backup first to pc)
If u want to merge there is an option called merge for that.
There is an free windows software called sdformatter, that formats the entire sdcard(fat32+ext)
Hope i helped a bit :thumbup:
Sent from my Nexus One using Tapatalk

ok. i wan't to format it with the windows internal function via right click. is it the same and the ext4 stays untouched?

Full wipe in recovery wipes SD-EXT too.

heinz gruber said:
ok. i wan't to format it with the windows internal function via right click. is it the same and the ext4 stays untouched?
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Click to collapse
i do beleive that it should be untouched, cos normally windows cannot see the ext partition and hence only fat32 will be formatted
Sent from my Nexus One using Tapatalk

ok. when ext4 stay untouched and i flash a new rom the apps are still in the launcher after flashing?

Jack_R1 said:
Full wipe in recovery wipes SD-EXT too.
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when i flash a new rom i use the format.zip form the xda user temasek which wipes system, boot, data and cache. so is sd-ext untouched when i use this file?

You insist on not listening and/or not understanding.
When you select "wipe data/factory reset" in custom recovery, EXT partition IS WIPED COMPLETELY. It doesn't stay.
I believe the same happens when using temasek's script, never bothered using it, so I can't say with 100% certainty.
If you don't wipe your phone and install a new ROM - be prepared for crashes of anything to everything, unless you install a ROM which is 100% compatible with what you have already - the next generation of the same ROM, usually.
If you're using A2SD and don't wipe EXT partition - you'll have crashes as soon as you boot, since system apps' data will be there (and wrong).
To keep your apps and their data, use one of the backup apps available in the Market, like Titanium Backup.

as Jack_R1 explained its always better to wipe everything(system,cache,dalvik n sdext) to be on safer side to avoid crashes n FCs.
Sent from my Nexus One using Tapatalk

Temasek's Extreme Wipe does Data/System/Boot partitions but don't remember seeing ext in the list
However, as alluded too, I would format all outside phone with sdformatter or I think gparted, although never used that one
I thought I read a long time ago Windows formatter not recommended and do a full wipe not partial with whatever you use
Back up sdcard first
also, I believe you can use the Alignment Cool zip to get ext 4 from 3 on Amon and not lose anything--still backup
you do know MeDroid uses Ia2sd and different from a2sd on implementation

You don't need to wipe the regular FAT partition on SD card between flashes, because there's nothing there that loads automatically. And "wipe data/factory reset" option in recovery also wipes /sdcard/.android_secure.

hey guys, thanks for your answers i will keep them in mind.
edit:
one more question:
if i uses temaseks script and the sd-ext is untouched and i flash a newer version of my rom, are the apps then still there after flashing and booting the updated system? or is there another step i've to do?

No, the apps aren't there anymore - or to be correct, the apps are there, their data is gone (because the app data doesn't reside on EXT partition, unless you use specific mounting methods).
When you flash an updated version of your ROM, just don't wipe anything at all unless the instructions specifically mention having to wipe before installing that version. That means - don't execute temasek's script at all.