Help!!Where is the /dev/block/dm-0 come from? - Nexus One Q&A, Help & Troubleshooting

I had install FRF91 ,and I try to used apps to SD.
I moved two apps,but there are 2 questions:
1.SD card fs is fat,where is the apps on sd?
2.Where is the /dev/block/dm-0 comes from?SD?
I think my english is too bad,but I'm still learning

I have the same question

hyperlau said:
I had install FRF91 ,and I try to used apps to SD.
I moved two apps,but there are 2 questions:
1.SD card fs is fat,where is the apps on sd?
2.Where is the /dev/block/dm-0 comes from?SD?
I think my english is too bad,but I'm still learning
Click to expand...
Click to collapse
SD card is fat, apps to to /sd/.androidsecure
And each app is loopback mounted, thus dm-0, dm-1, etc etc.. One mount per each moved app.

Related

[Q] Format SD card to ext2

I bought new SD card i want to wipe my phone completely and install Darkys Rom. I formated my new SD card to ext2 in Ubuntu but my phone didn't recognize the file system. Then i used Clockwork to format my (external) SD card and what i did i formated my internal SD card. I'm completely failed. Can somebody give me step by step tutorial how to format external SD Card to ext2 or ext4. Also i would like to know if i will be able to copy data under windows when the phone is connected through USB.
Thank you
Sorry for my English
Hi! Please tell me why do you want to format your SD card to ext2 or ext4? There is no need for that. Just format it tu FAT and that's it. If you want to apply lagfix then do it under recovery with the lagfix option under advanced features.
Greets from Croatia.
DanXo said:
Hi! Please tell me why do you want to format your SD card to ext2 or ext4? There is no need for that. Just format it tu FAT and that's it. If you want to apply lagfix then do it under recovery with the lagfix option under advanced features.
Greets from Croatia.
Click to expand...
Click to collapse
I would like to have option to transfer bigger files than 4GB.
+1
how do I format my external SD card to ext2? I have Samsung Captivate. I got Cygwin, since I use Windows. Does anyone know what commands to type in cygwin?
I want to put files larger than 4GB on my card as well.
I think this will be useful for a lot of people.
I found a thread http://android.modaco.com/content/h...an-i-bind-mount-e-g-system-sd-xxx-sdcard-xxx/
But I am a noob in Linux, and it would be GREAT to have step by step commands I would have to type in to format my external SD card, while its in the phone, etc
Possible problem I see is that the phone might not recognize external card if its ext2/3/4 . We might have to have small FAT32 partition on there as well? Or may be Froyo has that ability...
I'm looking into doing this myself, in my case so I can use symlinks to copy apps "data" folders (not the "data" partition, but the folders in /mnt/sdcard where apps put different things) onto the larger, external sdcard. It seems like it could be possible, just need to make sure the /etc/fstab file is updated properly, and of course make sure your kernel has the ext2 and/or ext4 modules loaded and running (which you probably will if you have a lagfix installed). I will play with this and post back my results here...
I have been looking for this myself for a while aswell, but on 4 different kernels and CWM v2.5 and CWM v3.0, I couldn't find any option on how to change the ext. SD to Ext4. If anyone knows how to then please post it here!
Sent from my GT-I9000 using XDA Premium App
So, progress report...
Still no success in this matter, although I have learnt a bit today about Android's internal workings. After backing up my system with CWR, I first tried formatting my ext sd card with gparted on my computer. Bad choice... Even though no config files were stored in it as far as I could tell, Android "panicked" and decided to restore all my configs to default, severely crippling my system and making a lot of apps force close when I restarted the phone.
At that point I thought, since it is now broken, might as well play with it So the next thing I tried was formatting my internal sd card (only the vfat partition that gets mounted in /mnt/sdcard) to ext2, but this time using the "busybox mke2fs" command, on the terminal emulator on the phone. This seemed to be successful, and I could read and write to the new ext2 partition, although for some reason, I got the feeling that apps kept resetting their settings (not sure what caused this, didn't really looked into it much). So once that was up and running, I decided to modify the /etc/fstab file, like I would do in a normal linux environment, to automount this partition on boot, as ext2.
At this point I rebooted the phone, but hmm... Android converted the partition back to vfat. Not good. This leads me to believe there must be some kind of "recovery" commands run on startup, in case the system detects the partition is not the default file system, or something along the lines of that. At this point it got kinda late, so I decided to document my progress, restore (which thankfully left my phone the way it was at the beginning of the day) and call it a day.
So, things that I still need to find out:
1) How does the system convert the partition back to vfat on startup and how could I avoid it from doing it? Maybe by having a small vfat partition to fool it into thinking all is good and normal?
2) When I had my partition as ext2, I couldn't see it on my computer when connected via USB (I'm on a linux system so the fs being ext2 is not a problem). Wonder why...
3) If I had a small vfat partition, how would I go about mounting the ext2 partition on the same mount point after the system checks the vfat one? Maybe by binding it? Gotta look into that as well.
4) Finally, have to check why the apps couldn't maintain their settings after a certain amount of time (for example, if I opened terminal emulator and changed the colors, these would stay if I closed and opened the app again right away, but if I closed it for a while, say half an hour, and opened again, it would be back to default...)
I'm on a Galaxy S btw. If anyone has any insight on any of these matters, would be much appreciated!
Any progress? Would really like to use +4 GB files.
morow said:
I would like to have option to transfer bigger files than 4GB.
Click to expand...
Click to collapse
It is immpossible because of hardware limitations of the SD card And often if the file is big it just fail!
Hristov1 said:
It is immpossible because of hardware limitations of the SD card And often if the file is big it just fail!
Click to expand...
Click to collapse
Not true, read the rest of the thread before u post! Its not a hardware limitation, its because Android uses fat32 as filesystem.
hello everyone,
I just wanted to check to make sure that there is no solution for this 4gb limitation with Android yet? I too have been looking for something besides resizing files.
thanks
uki
I have ext2 on my external 32GB SDCard, just formatted it on my PC and put it in the phone, working without any problems. I just watched a full length 720p movie with DTS sound on my phone without having to re-encode the mkv
I'm using CM7.1 on my phone which auto-mounts the SDCard even with ext2. It won't work on stock ROM, but any kernel that has ext2 support should be able to read ext2-formatted cards but they might not auto-mount the sdcard.
On my PC I had to install a ext2 file system driver (google ext2fsd) for Win7 to be able to read the card when attaching the phone to the PC.

[Q] Convert SDCard to MainMem so External_SD becomes SDCard?

Hi there,
Is there a way to make the add the internal SD card to the main memmory? So that there would not be an internal SD card anymore?
I do not mean swapping the moutpoints around so my External_SD becomes my primary and my internal my second....
I want to get rid of the internal one alltogether (adding it to main memory).
I figure that I'll have to format the storage in a certain way... would that do it?
Can someone tell me step by step what to do?
I do have CW-mod installed.
I did search the forum, but couldnt find anything conclusive. Just hints that it should be possible...
If there already is a thread where all this is explained, please point me to it, because I couldn't find it.
Thanks,
Pfeffa-rah
I don't think this is possible , never heard of someone who did it
I have no idea how to do that. My question is... why would you want to do that?
Having an internal_sd partition adds the benefit of having big app data (such as those in Gameloft games) sit in a very fast partition and still be called "sddata".
Also, it's mountable via PC so everything in there can still be backed up. So it's best of both worlds really.
This was discussed some time ago in this thread: http://forum.xda-developers.com/showthread.php?t=1013575
There were ideas on how to remount the cards at boot. I myself come to the conclusion that since more phones start to behave in this way, app developers will have to start dealing with it. It just sucks they are mostly slow on the uptake. My main problem was the Spotify cache location being hard coded so I resorted to hack the Spotify apk.
PS. salisbury_steak: What is it with people like you that every time someone has a question on how to do something, your immediate response is "But why would you want to do that?!".
sorech said:
PS. salisbury_steak: What is it with people like you that every time someone has a question on how to do something, your immediate response is "But why would you want to do that?!".
Click to expand...
Click to collapse
That was actually an honest question.
I wanted to understand why he wanted to do it. (i.e. What would be the advantages of it.) There was no supposed sarcasm in there.
how about the ability to install 5x more applications?
Having that stupid 5gb partition as sd card and the real sd card as a sub folder is retarded...
My 32GB class 10 cars is a lot faster than the internal one.
The internal 5gb memory is MUCH TOO SMALL!!! Most apps don't allow you to store data on the external card. If you like me and many others install some games that download aditional data + a nav app that downloads maps for europe + some streaming music app like wimp that can cache music for offline play then you are ****ed with LG's setup.
The setup CM7 uses solves the main problem but effectively wastes the 5gb by mounting it at emmc where like 0,0001% of apps are able to access it.
So adding those otherwise wasted 5gb to the main memory would be great. But i have not seen any solution to that yet :-(
Thank you Gensplejs for explaining that to them. I had no idea how to reply to that since it seemed so obvious to me.
This thread was ment to be a question about how to do it and not to discuss the usefullness of it. That is where I lost the way in other threads...
So, thanks for your replys all (realy).
But now, back On-Topic:
How would I do it?
Sent from my LG-P990 using XDA Premium App
Please don't blame me if you tried it and you screwed up your phone.. It's your choice...
Well, I don't know if this would work, but this is how I would do it (accepting the fact that I'd loose almost 2GB of /data's free space):
1. Format your internal sd card to the same file system as your /data partition is (ext3 or ext4)
2. Copy every file from /data 1:1 to your sdcard (cp -R /data/* /sdcard)
3. I don't know when and where the partitions are mounted (maybe init.rc??)...anyways change the target there and let /data point to the internal sd card partition (so it is ensured that it is mounted automatically to the new location)
4. Reboot and keep your fingers crossed
I think i figured how to do it in theory. First we need some free space at our microsd to cp /data. Then we should repartition with fdisk /dev/block/mmcblk0p8 and p9 into one partition and change vold.fstab to mount only externalsd at /sdcard as we do when we swap partitions. In theory it should work but i cant test it right now or make a script since ve gone vacations and i dont have a pc to restore in case of error
I agree.. certain apps wont store to sdcard.. its better to use the whole 8gb as phone storage, and use external sdcard as default sdcard.
Sent from my LG-P990 using XDA App
What ive found till now is that sd swapping is easy. You can do it by tweaking only vold.fstab. But repatriationing is a pain in the ass. Looks like lg has "faulty" partitions or something and to do it you must mesh up with with almost half partitions.
I had to rebuilt boot lgdrm recovery data and sdcard to make em half work. So it probably isnt worth the trouble. Also I think init.rc is built on the boot. So just remounting internal sd to /data wont work either.
sectors is not space
it says 7996, so thats 8GB
i saw it in hurry. the brain sometimes belives whats he want to belive
sorry
New to XDA
Hello everybody,
I'm new to android and i'm trying to find out how to solve the problem posted in this thread.
I see you've got the awnser but i don't know how to do this.
I've been searching google and XDA for ever but i just can't find the awnser.
Could you make a step by step howto or point out to a post how to do this.
I mean converting your external sd to ext4 and change the mounting points.
I'm a complete nood, i didn't get adb to work on my pc, ext4 recovery is not for the p990 2x.
I've read something abbout changing fstap for swapping te mounting points for sdcard and emmc, witch is also ok for me, but formating to ext4... wel i frankly don't know how to do this.
I'm quite stuk on this.
The only partitioning experience i've got is Gparted in Ubuntu or repartitioning in Windows 7.
Thans in andvance!
Greetz,
JMG
http://android.modaco.com/topic/347...-partitions/page__gopid__1821791#entry1821791
check this
you can expand data partition , but there is a limitation of 1.75gb
Thanks davjan
Thanks davjan,
As far i can see it's indeed not worth it.
I wil have to go on and try to find out how to change the filesystem to ext4 and swap the internal and external sd.
That way i get more usable space instead of a big datastorage witch cannot contain program data.
But thanks for the quick reply.
Jean Michel Gaar said:
Thanks davjan,
As far i can see it's indeed not worth it.
I wil have to go on and try to find out how to change the filesystem to ext4 and swap the internal and external sd.
That way i get more usable space instead of a big datastorage witch cannot contain program data.
But thanks for the quick reply.
Click to expand...
Click to collapse
what rom are you using? is your phone rooted?
swapping internal with internal sd is very easy
and most of the roms here on xda are ext4 , if you instal one of them they autoconvert to ext4
Jean Michel Gaar said:
Thanks davjan,
As far i can see it's indeed not worth it.
I wil have to go on and try to find out how to change the filesystem to ext4 and swap the internal and external sd.
That way i get more usable space instead of a big datastorage witch cannot contain program data.
But thanks for the quick reply.
Click to expand...
Click to collapse
I you read the link provided you'll see that it makes what you want: grow internal filesystem = lower SDcard usable space. The only thing is that it doesn't seem possible is to use the whole space: system limitation. 75Markus tried high /system and /data values and phone didn't work.
See in his Mediafire Folder, 'Nvflash + guide for changing Partitions:
http://www.mediafire.com/75markus
Ext4 is now common with custom ROMs (in fact all of them).
You should search in sd-ext partition system, which was designed to artificially expand filesystem on older phones using an 'ext' partition. I didn't heard anybody using this on O2X.
If you use CyanogenMod based ROMs, your external card will be mounted ad /sdcard by default.
Switching internal and external SD
Thanks guy's,
I'll check it out.
I've been using cyanogenmod 7.1 stable with vorkkernel 20110208.
But that gave me batterydrains while using maps and nextvid ate the same time (while i'm driving).
Now i'm trying MIUI 1.11.11 with latest swift extreme.
But MIUI is very buggy so i'm thinking of going back to CM.
The only thing is that my phone won't boot with the latest vorkkernel.

[Q] Milestone CM7 sd-ext, caches and CM7

I know it was discussed a lot, but since things are constantly being updated i can't get a hold of what is working at the moment. I will be brief.
16 GB SD card, First partition is primary 14 GB FAT32, second partition is ext3 1 GB.
I am using Cyanogenmod 7 7.2.0 RC1 on Motorola Milestone. I also have androidiani open recovery and kabaldan's mmcfix module installed.
After the partitioning was complete (in card reader) i returned the SD card in the phone and booted to open recovery where I formated all caches and factory restored CM7 everything is clean.
Questions:
1. When I launch File Explorer (the one within the rom) SD-EXT on root is empty, no folders or anything, but if I launch terminal emulator and cd sd-ext then ls there they are. Why?
2. I play couple of memory intensive games (like Dead Space and GTA3), but since I have only 256 mb ram they often crash (without error) when loading a level or saved game (yes I have chainfire3D). Will moving dalvik cache and cache to sd-ext help free more ram so I can crash less?
3. What is the point of moving dalvik and cache to sd-ext and where can I find a guide how to do it?
Thanks.
CeBits said:
I know it was discussed a lot, but since things are constantly being updated i can't get a hold of what is working at the moment. I will be brief.
16 GB SD card, First partition is primary 14 GB FAT32, second partition is ext3 1 GB.
I am using Cyanogenmod 7 7.2.0 RC1 on Motorola Milestone. I also have androidiani open recovery and kabaldan's mmcfix module installed.
After the partitioning was complete (in card reader) i returned the SD card in the phone and booted to open recovery where I formated all caches and factory restored CM7 everything is clean.
Questions:
1. When I launch File Explorer (the one within the rom) SD-EXT on root is empty, no folders or anything, but if I launch terminal emulator and cd sd-ext then ls there they are. Why?
2. I play couple of memory intensive games (like Dead Space and GTA3), but since I have only 256 mb ram they often crash (without error) when loading a level or saved game (yes I have chainfire3D). Will moving dalvik cache and cache to sd-ext help free more ram so I can crash less?
3. What is the point of moving dalvik and cache to sd-ext and where can I find a guide how to do it?
Thanks.
Click to expand...
Click to collapse
1) The File Manager bundled with CM7 doesn't have ROOT access, which is required to read the files on /sd-ext. Try using Root Explorer, for example.
2) No, it won't. What will probably help you is to disable JIT (gives you more free RAM), install V6 Supercharger by zeppelinrox (reorganizes how RAM is used) and remove ChainFire3D (it only helps if you reduce the texture quality to 16-bits, otherwise it's just one more layer between your apps and the GPU).
3) The point of using sd-ext is to overcome the storage limitations of the Milestone (not its RAM limitations), allowing you to install more apps without using app2sd (which renders apps on the SD unusable when you plug the device to a computer).
I hope it helps (=
Disabling surface dithering also helps.
I tried 7.2.0-RC2 without V6 and it works great, plus no more side effects, like Maps "forgetting" pre-cached areas =D
Hi. I followed pontomedon's guide to partition my 8GB card with OpenRecovery (parted & tune2fs). So I got 1 GB ext3. And installed CyanogenMod 7.2.2.
But in the CM Settings "Use internal storage" is grayed out and says "This device doesn't have expanded internal storage". Has something gone wrong? What's the best way to confirm that SD ext is working?
If ext would work, would the phone's memory still be used fully first, and SD ext only after that, or how does it go? I've now set Install location to "Internal".
I've heard of S2E (simple2ext) app, maybe I'll try it next.
mantokoski7 said:
What's the best way to confirm that SD ext is working?
If ext would work, would the phone's memory still be used fully first, and SD ext only after that, or how does it go? I've now set Install location to "Internal".
I've heard of S2E (simple2ext) app, maybe I'll try it next.
Click to expand...
Click to collapse
Your storage as in FAT partition on sdcard is working?
You can "mount | grep sd-ext" and "df /sd-ext" to check if sd-ext is mounted and how much space it has.
sd-ext is treated as internal memory. All user installed apps are moved to ext partition. Internal storage (data) is used for app data (configuration, etc.)
Thanks. Why does it show it as ext4. 8% is used... I guess it's working after all. Now let's install some games!
/dev/block/mmcblk0p2 on /sd-ext type ext4 (rw,noatime,nodiratime,barrier=1,data=ordered)
Filesystem /dev/block/mmcblk0p2 1K-blocks 936666 Used 70298 Available 816397 Use% 8% Mounted on /sd-ext
I installed Root Browser Lite and it shows the installed apps in sd-ext, also Dalvik-cache for those apps is there, which is good I think.
how to format?
mantokoski7 said:
I installed Root Browser Lite and it shows the installed apps in sd-ext, also Dalvik-cache for those apps is there, which is good I think.
Click to expand...
Click to collapse
Hi, my question is very close to this topic : when I try to install another rom I got all the old applications coming from the previous install. Is there a way to format the ext 2 in the same time we update or change CM?
Thx
Use -FuFu-'s MiniMod Recovery - it has an extended wipe menu, including ext-wipe.
http://forum.xda-developers.com/showthread.php?t=1091787
Eiertschik said:
Use -FuFu-'s MiniMod Recovery - it has an extended wipe menu, including ext-wipe.
http://forum.xda-developers.com/showthread.php?t=1091787
Click to expand...
Click to collapse
I'm using 2ndBootOR . What is the differcnce between them?
bibile said:
I'm using 2ndBootOR . What is the differcnce between them?
Click to expand...
Click to collapse
With 2ndbootOR you can use "wipe_ext2.sh" from MiniMod by -FuFu, or any other script. Just copy file to "scripts" folder.
FuFu's latest OR is based on the 2ndbootOR, so it does everything the 2ndbootOR does, but it also has additional scripts. So it really worth a try.
Thx I'll update my second phone (I have not seen these answers before)
Sent from my U8860 using xda app-developers app

[Q] error: not enough internal memory - but I have 90MB and app is 30MB

Hi Folks,
Executive summary:
I'm trying to install an app that is around 30MB. I have 90MB of internal memory available. It won't download and complains there is not enough memory.
Gory detail:
I have a 32 GB SD card partitioned into 10GB (ext2) and 20 (FAT32) and I use Link2SD to automatically install apps on the ext2 partition. That is working fine.
There is an app in Samsung Apps, issued by the education department, that I need for my son's upcoming spelling bee. The app is around 30MB. When I try to download it, it complains that there is not enough internal memory and that I should delete some files, make space, etc.
Relevant information:
1. There is 90MB available on the internal memory and the app is 30MB.
2. The app should automatically be installed on the SD card anyway, and so not be concerned about the internal memory in the first place.
3. Other, smaller apps from Samsung Apps install without complaint directly onto the SD card.
The figure of 90MB is from Settings > Applications > Manage Applications and also from Link2SD > Settings > Storage Info. Same number.
The phone is rooted and running Gingerbread 2.3.6.
Thanks in advance.
2ways said:
Hi Folks,
Executive summary:
I'm trying to install an app that is around 30MB. I have 90MB of internal memory available. It won't download and complains there is not enough memory.
Gory detail:
I have a 32 GB SD card partitioned into 10GB (ext2) and 20 (FAT32) and I use Link2SD to automatically install apps on the ext2 partition. That is working fine.
There is an app in Samsung Apps, issued by the education department, that I need for my son's upcoming spelling bee. The app is around 30MB. When I try to download it, it complains that there is not enough internal memory and that I should delete some files, make space, etc.
Relevant information:
1. There is 90MB available on the internal memory and the app is 30MB.
2. The app should automatically be installed on the SD card anyway, and so not be concerned about the internal memory in the first place.
3. Other, smaller apps from Samsung Apps install without complaint directly onto the SD card.
The figure of 90MB is from Settings > Applications > Manage Applications and also from Link2SD > Settings > Storage Info. Same number.
The phone is rooted and running Gingerbread 2.3.6.
Thanks in advance.
Click to expand...
Click to collapse
Did you move the dalvik-cache partition?
Dalvik-cache needs space too to install and run the app so clean it and then try to install this app again
Viper The Ripper said:
Did you move the dalvik-cache partition?
Dalvik-cache needs space too to install and run the app so clean it and then try to install this app again
Click to expand...
Click to collapse
Thanks for getting back to me.
In setting up Link2SD, a new dalvik-cache folder was set up on the 2nd partition on the SD card and the default action for all new apps is to put dalvik-cache files there. There is still the old dalvik-cache folder on /data.
I used Link2SD to clear all the cache folders and got another 10 MB free of internal memory.
Running df in a terminal I get:
/data size-180MB, used-76MB, free-104MB
Which should mean that the 'old' dalvik-cache folder has plenty of room to expand and shouldn't be stopping the installation of a single new app. Again, of course, any new apps should have their dalvik-cache files added to the SD partition anyway, rather than the original one.
Is their something I'm not understanding about the dalvik-cache?
Thanks for the help.
2ways said:
Thanks for getting back to me.
In setting up Link2SD, a new dalvik-cache folder was set up on the 2nd partition on the SD card and the default action for all new apps is to put dalvik-cache files there. There is still the old dalvik-cache folder on /data.
I used Link2SD to clear all the cache folders and got another 10 MB free of internal memory.
Running df in a terminal I get:
/data size-180MB, used-76MB, free-104MB
Which should mean that the 'old' dalvik-cache folder has plenty of room to expand and shouldn't be stopping the installation of a single new app. Again, of course, any new apps should have their dalvik-cache files added to the SD partition anyway, rather than the original one.
Is their something I'm not understanding about the dalvik-cache?
Thanks for the help.
Click to expand...
Click to collapse
You're right, smply I thought that your dalvik-cache partition was full and it was the reason you couldn't install anything, but it's weird :S :S :S
For this and many other reasons I don't like to use link2sd, I prefer int2ext+ script; safe, simple, fast, doesn't touch the dalvik-cache partition and keep /data in /data place
AFAIK Link2sd don't move "apps" strictly, It link apps to sd-ext partition, so a part of apps are installed in /data (internal memory) and the rest (the heaviest) in your sd-ext partition
It could be helpful
http://forum.xda-developers.com/showthread.php?t=2313327&highlight=about+link2sd
BTW you can wait for the replies from fellows better informed on such issues
Thanks for your help.
It's my wife's phone and I'll be away from home now until next week, so can't pursue the solution any further just now, but I haven't given up!
I'll be back on this thread come Monday, and I'll definitely have a look at int2ext.
Thanks again.
Viper The Ripper said:
You're right, smply I thought that your dalvik-cache partition was full and it was the reason you couldn't install anything, but it's weird :S :S :S
For this and many other reasons I don't like to use link2sd, I prefer int2ext+ script; safe, simple, fast, doesn't touch the dalvik-cache partition and keep /data in /data place
AFAIK Link2sd don't move "apps" strictly, It link apps to sd-ext partition, so a part of apps are installed in /data (internal memory) and the rest (the heaviest) in your sd-ext partition
It could be helpful
http://forum.xda-developers.com/showthread.php?t=2313327&highlight=about+link2sd
BTW you can wait for the replies from fellows better informed on such issues
Click to expand...
Click to collapse
Sorry for the Off-Topic, but my battery drained faster with int2sd.. do you faced the same problems?
Sent from my GT-S5830 using xda app-developers app
Blackbox421 said:
Sorry for the Off-Topic, but my battery drained faster with int2sd.. do you faced the same problems?
Sent from my GT-S5830 using xda app-developers app
Click to expand...
Click to collapse
It's normal I suppose due to Read/Write cycles, but it's better (less cycles) than swap partition (reduce your sdcard's life drastically)
Couldn't Install on USB Storage or SD Card
If, while installing your app, its showing "Couldn't Install on USB Storage or SD Card", then I've got just the solution. You could either fix it permanently,temporarily or do a method each time before you install your app.
Permanent Method
1) If your device is running on 2.2.1 or 2.3.6 android version, upgrade it to 3.4.5 ICS or 4.1.1 Jellybean. If the problem is solved then, don't worry, your problem has been permanently fixed.
Temporary Method
1) Backup your SD Card files and format it. Don't worry, it won't affect your partitions. I cannot guarantee you that this thing won't come up again. It may not but there is still a chance.
2) Before installing your apps, Go to Settings>Storage Info>Unmount SD Card. Select this each time before you install anything. Your app will be installed on to your Phone memory. After installing, Go to Settings again and Mount your SD Card. And of course, you could then Link your app to your partition or whatsoever...
I'll recommend Temporary Method 2 as it is would be easy for you if you're a newbie...Hope that this helped...Thanks:highfive:

[Q] what should I mount when installing int2ext+?

hello,I'm quite new here,but I've tried partitioning SD fro my galaxy Ace in the past,and it did not work kind of well.My question is,what should I really mount when I'm flashin int2ext+?I've tried googling,but all the forums have been giving me different answers,so could anyone please help me figure out the "REAL" things to mount?because I'm quite confused as what to mount.Furthermore,after I flashed int2ext+,my phone became quite laggy,and my apps sometimes are not responding..So,any help/insight on that is greatly appreciated!
Khayrin said:
hello,I'm quite new here,but I've tried partitioning SD fro my galaxy Ace in the past,and it did not work kind of well.My question is,what should I really mount when I'm flashin int2ext+?I've tried googling,but all the forums have been giving me different answers,so could anyone please help me figure out the "REAL" things to mount?because I'm quite confused as what to mount.Furthermore,after I flashed int2ext+,my phone became quite laggy,and my apps sometimes are not responding..So,any help/insight on that is greatly appreciated!
Click to expand...
Click to collapse
You should mount /system from CWM before you install CronMod. CronMod mounts the ext partition of your SD Card as the new /data moving all the original /data files in there. Now certain applications like Google Play, Google Setting, etc needs to be in the internal memory to work properly. Otherwise they will give forced closes. With CronMod, you will not be able to move any apps to internal memory as your new internal memory is the ext partition of your SD Card. While using CronMod make sure to install only the necessary apps as installing more and more apps will make your phone more laggier. Also the maximum size of the ext partition should be 1 GB. Hope I Helped
mahithm said:
You should mount /system from CWM before you install CronMod. CronMod mounts the ext partition of your SD Card as the new /data moving all the original /data files in there. Now certain applications like Google Play, Google Setting, etc needs to be in the internal memory to work properly. Otherwise they will give forced closes. With CronMod, you will not be able to move any apps to internal memory as your new internal memory is the ext partition of your SD Card. While using CronMod make sure to install only the necessary apps as installing more and more apps will make your phone more laggier. Also the maximum size of the ext partition should be 1 GB. Hope I Helped
Click to expand...
Click to collapse
So just /system huh?I mounted /data too,maybe that's the reason for the lag.Anyway,thanks for the help,I will do that right away! :highfive:
Khayrin said:
So just /system huh?I mounted /data too,maybe that's the reason for the lag.Anyway,thanks for the help,I will do that right away! :highfive:
Click to expand...
Click to collapse
Bro, mounting /data or /sd-ext will not cause any problem. That I can guarantee
mahithm said:
Bro, mounting /data or /sd-ext will not cause any problem. That I can guarantee
Click to expand...
Click to collapse
Then it's just caused by my phone?not because I mounted something?hm,interesting..legacy phones sure have a hard time eh?
Khayrin said:
Then it's just caused by my phone?not because I mounted something?hm,interesting..legacy phones sure have a hard time eh?
Click to expand...
Click to collapse
Yes. What rom are you using now? And btw did CronMod work?
Khayrin said:
hello,I'm quite new here,but I've tried partitioning SD fro my galaxy Ace in the past,and it did not work kind of well.My question is,what should I really mount when I'm flashin int2ext+?I've tried googling,but all the forums have been giving me different answers,so could anyone please help me figure out the "REAL" things to mount?because I'm quite confused as what to mount.Furthermore,after I flashed int2ext+,my phone became quite laggy,and my apps sometimes are not responding..So,any help/insight on that is greatly appreciated!
Click to expand...
Click to collapse
Here you'll find all the steps in the installation process
Int2ext Script Installation
mahithm said:
Yes. What rom are you using now? And btw did CronMod work?
Click to expand...
Click to collapse
Hi sorry for the late reply.I'm using Touchwiz Revolutionized 5.0-V4.0 [FINAL],and it seems to work fine,with cronmod's int2ext+,but the occassional lag still happens,sometimes unbearable..maybe I'll try another ROM later
Khayrin said:
Hi sorry for the late reply.I'm using Touchwiz Revolutionized 5.0-V4.0 [FINAL],and it seems to work fine,with cronmod's int2ext+,but the occassional lag still happens,sometimes unbearable..maybe I'll try another ROM later
Click to expand...
Click to collapse
Since the original /data partition is moved into the ext partition of the SD Card and the SD Card R/W speed is less than internal memory R/W speed, yes, it will lag. You can control this to a certain extent by using Class 8 or above SD Card and only installing the necessary apps. Don't forget more apps you install to ext partition, more laggier your phone becomes
mahithm said:
Since the original /data partition is moved into the ext partition of the SD Card and the SD Card R/W speed is less than internal memory R/W speed, yes, it will lag. You can control this to a certain extent by using Class 8 or above SD Card and only installing the necessary apps. Don't forget more apps you install to ext partition, more laggier your phone becomes
Click to expand...
Click to collapse
There is a way to avoid lags (but with Class 8 or above) and that is RAM swap...on Play store there are great apps for this. Just type "Ram swap".
skoda9635 said:
There is a way to avoid lags (but with Class 8 or above) and that is RAM swap...on Play store there are great apps for this. Just type "Ram swap".
Click to expand...
Click to collapse
The main problem while using swap is that it degrades your SD Card's life. So use it at your own risk. Hope I Helped
mahithm said:
The main problem while using swap is that it degrades your SD Card's life. So use it at your own risk. Hope I Helped
Click to expand...
Click to collapse
Thanks good to know...
skoda9635 said:
Thanks good to know...
Click to expand...
Click to collapse
Yes, it's dangerous for your sdcard's life

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