NAND Backups and Ext - Droid Eris Q&A, Help & Troubleshooting

First, am I doing something wrong or does it just not work? I can't seem to get NAND +ext backup to work.
On the matter, of ext partitions there seem to be some ROMS that use ext2 and some that use ext3. Then there is also ext4. This can be annoying if you want to try another ROM that requires the ext type you don't currently have. I'd really rather not have to wipe the SD card and have to repartition it. Since I know I can use Acronis to format both ext2 and ext3, would it work OK to have FAT32, ext2, ext3, and swap all on the same SD card?
Also, I saw a post that seemed to say Froyo ROMs require just having one big FAT32 partition. That seems rather off to me since I thought Froyo ROMs could use A2SD.

gospodinwizard said:
First, am I doing something wrong or does it just not work? I can't seem to get NAND +ext backup to work.
On the matter, of ext partitions there seem to be some ROMS that use ext2 and some that use ext3. Then there is also ext4. This can be annoying if you want to try another ROM that requires the ext type you don't currently have. I'd really rather not have to wipe the SD card and have to repartition it. Since I know I can use Acronis to format both ext2 and ext3, would it work OK to have FAT32, ext2, ext3, and swap all on the same SD card?
Also, I saw a post that seemed to say Froyo ROMs require just having one big FAT32 partition. That seems rather off to me since I thought Froyo ROMs could use A2SD.
Click to expand...
Click to collapse
I'll refer you to the following link for making NAND + ext backups:
http://forum.xda-developers.com/showpost.php?p=6866495&postcount=1038
While I think it may be theoretically possible to have ext2, ext3, and swap, all on the same SD card, I seriously doubt any Android version would be able to recognize that form of partitioning (Froyo definitely wouldn't).
As for Froyo, the implementation of A2SD in Froyo simply stores apps in a folder on the SD card, thus eliminating the need for a partition. The A2SD implementation "hacked" into 2.1 ROMs on this website originated from Cyanogen, I believe. Therefore, there isn't specific Android OS support for the feature like there is from Google in 2.2.

That weird cause I have apps2sd working with almost 300mb of apps on my 512 ext partition, and when I do a regular NAND backup using clockworkmod recovery, and when I restore, it restores all of the apps on the ext. Don't know why this is tho or why your having trouble, just thought I'd let you know.
Sent from my Eris using XDA App

Related

App2SD with ext2,3,4 support xRecovery installation

Download here - app2sd.ext4(modified 3.1.11)
Or if you want both, apps and dalvik-cache on SD - download here - app2sd.dc2sd.ext4
First of all make backup in xRecovery
Install app2sd through xRecovery - install custom zip
ext2 or ext3 or ext4 partition on SDcard needed
After app2sd installed, don´t turn the phone on without SD card with installed apps inserted, until it is really necessary
First boot after installation takes longer, depending on the amount of installed apps
If you make backup with xRecovery after installation -
- your personal data and setting of your apps will be backed up
- installed apps will no longer be backed up, but still remaining in the ext partition on SD card
If some app won´t work correctly, please reinstall the app from Market or from the file browser (rootexplorer) - you can find your apps in /system/sd/app directory
Compatible with JIT?
Yes, it is.
peetr_ said:
Download here - app2sd.ext4
Install through xRecovery - install custom zip
Click to expand...
Click to collapse
Could u upload the file on megaupload.com
Thanks,...
Ok... now it´s on megaupload.
Installed it, how can i check it? This is my first app2sd try
Sent from my E10i
In rootexplorer, /data/app - shows used and remaining space, added together it should be size of your ext partition.
Ok at first i didnt have a ext2 partition.
Now i have formated my sd card and app2sd seems to waork, my problem is after installing the uptade.zip my phone reboots and at first it shows all the apps in menu then they dissapear, i think theyre transfered to sd card. and then i can do nothing just have the standart apps, appbrain doeasnt works, cant start root explorer etc... but all m apps appera in the menu for deinstallation. Hope you can help me
EDIT//
after another restart everything seems to work fine
I am glad to hear that
Works well with my previous ext2 partition.
I already had app2sd working, and it still works this way.
I'm now trying a new sdcard. I formatted an ext4 partition in ubuntu, but the phone enters into an eternal loop. Don't know why, but it seams that it is not recognizing the partition.
Any Ideas?
Regards
Use ext3,for mini is better - stable
I made ext4 partition making first ext3 and then ext4 manually in xrecovery through adb with this tutorial http://forum.xda-developers.com/showthread.php?t=534714 and its stable.
But maybe ext3 is faster with our kernel. Dont know, didnt compared.
peetr_ said:
Ok... now it´s on megaupload.
Click to expand...
Click to collapse
Thanks brader.....
This sounds awesome but does this mean that I can have apps on ext2 + ext 3 which means double the amount of apps?
NO.On ext3 is better performance.
No, but you can double the amount of partition size
Nice so say I've doubled it, will it increase the amount of apps I can put on my mini? just want to know a bit more about this
peetr_ said:
Download here - app2sd.ext4
Install through xRecovery - install custom zip
ext 2,3 or 4 partition on SDcard needed
Click to expand...
Click to collapse
THANK YOU VERY MUCH !!!
now i have a question, i got a 1gb ext2 partition, would it be better when i format it in ext3 or ext4 ? i dont know wich class the microsd card is, its a 8gb....
I have ext4 but few people said ext3 has better performance.
I had no time yet, to try ext3.
I think 1 GB is too much, because there are still some data, that are stored in internal memory and when you run out of internal memory, remaining place in ext partition is unused.
500 MB is enough, this is not high-end phone and too many apps means more slowness and less stability, i think.
M
peetr_ said:
I have ext4 but few people said ext3 has better performance.
I had no time yet, to try ext3.
I think 1 GB is too much, because there are still some data, that are stored in internal memory and when you run out of internal memory, remaining place in ext partition is unused.
500 MB is enough, this is not high-end phone and too many apps means more slowness and less stability, i think.
Click to expand...
Click to collapse
Can I skip doing ext2 just make ext3 n 4..then intall the zip file using recovery?to make partition ext3 or 4 using same method of make partition ext2?
sent from my E10i

internal storage? make bigger

hey is there anyway to make it bigger i have moved all my apps to the sd card
Use S2E if you are using CM7. You must create an ext3 partition for S2E to work. Download it from the market.
Sent from my Aria using XDA Premium App
lsusparky621 said:
Use S2E if you are using CM7. You must create an ext3 partition for S2E to work. Download it from the market.
Sent from my Aria using XDA Premium App
Click to expand...
Click to collapse
how do you create an ext3 partition?
madsnake53 said:
how do you create an ext3 partition?
Click to expand...
Click to collapse
Either use gparted (desktop linux app), or clockworkmod. Set swap to 0 if you use clockwork. The ext partition must be the first partition, if you use gparted.
Make sure youre using CM7, not all roms support an sd-ext partition.
hartleyshc said:
Either use gparted (desktop linux app), or clockworkmod. Set swap to 0 if you use clockwork. The ext partition must be the first partition, if you use gparted.
Make sure youre using CM7, not all roms support an sd-ext partition.
Click to expand...
Click to collapse
Every guide/source I've ever seen says you must put the fat32 partition first, followed by ext partition, and optionally followed by swap partition. I've never bothered trying it any other way but you're definitely wrong about having to put the ext partition first. It might work in either order.
Also just about any of the custom ROMs on this site will support an ext partition, but S2E specifically only works on CM7.
yer thanks all ive done it know i used a partition wizard that deals with linux stuff and work i know have the ext3 at 500mb.
and im using CM7.1 RC
thanks all

[Q] Clockworkmod and sd-ext

Just installed link2sd earlier (formatted partition as ext3). Wanted to flash a different rom. Trying to backup my phone, and clockworkmod tells me it can't mount sd-ext. Anyone know a reason and/or work around?
I think CWM works only with ext4 partition AFAIK. So, you can re-partition your sd card to a ext4 partition using CWM, or you can format the ext partition only to ext4 using a computer.
YouArePoop said:
Just installed link2sd earlier (formatted partition as ext3). Wanted to flash a different rom. Trying to backup my phone, and clockworkmod tells me it can't mount sd-ext. Anyone know a reason and/or work around?
Click to expand...
Click to collapse
which version of CWM have you got?
3.0.2.4, which I've used for a while now, always tries to back up my 6GB ext2 debian partition unless I remember to change cards first. no way I leave room in the vfat partition to back up that much data.
I'll put it up on 4shared if you want it.
mihir287 said:
I think CWM works only with ext4 partition AFAIK. So, you can re-partition your sd card to a ext4 partition using CWM, or you can format the ext partition only to ext4 using a computer.
Click to expand...
Click to collapse
Guess when I get home I'll copy the contents to computer, reformat, and copy back. Hopefully link2sd will notice the formatting has changed and reset itself
Sent from my LG-VM670 using XDA App
Doesn't work with extra either. Version 3.2.0.1 I believe it was.
Guess it doesn't really matter, can just use titanium since its all app stuff on there anyways...
Sent from my LG-VM670 using XDA App
i use CWM to back up my 512MB ext2 partition for my data2ext all the time (with the rest of the backup) and it seems to have no problem, and just to check i just mounted the partition in mounts and storage and it mounts fine. I know some recoveries ive used in the past on other phones would have problems with partitions that were not in 64-128-256-512-1024 MB, etc. format because of block size issue errors that i would get (when mounting or trying to set block size to 4096). I also found that when partitoning/formatting to ext2/3/4 some programs do not properly write the drive formatting and certain systems/recoveries/apps could not properly read them on the android. the best most consistent (android friendly) formats that i have gotten to date were in ubuntu (or any other) linux using "gparted". It seemed to always be the best and usually better than the format done by the phone recovery. Hope this helps. Sorry to drone on and on.
Partitioned originally with gparted. Have since resized to be 2048, and set its label to 'sd-ext'. Now instead of getting an error saying sd-ext might not be supported on my device, it just gives me a generic 'error mounting sd-ext'
I've had ext partition mounting problems before, I'm not sure if the cause is something to do with vold or what, but
after unmounting a sd card to exchange it with another one, it changes the device partitions in /dev/block like
/dev/block/mmcblk1p2
for the sd-ext partition instead of the normal
/dev/block/mmcblk0p2
you can see if this has happened by
Code:
ls /dev/block
in adb shell.
to mount it manually, if the numbering is off,
Code:
mount /dev/block/mmcblk1p2 /sd-ext
I've only had this happen with android running, but it might work in recovery too
Switched over to using data2ext. Mounts the 2nd partition as the /data partition instead of /sd-ext. Can manually mount 2nd as /sd-ext from within rom, but it doesn't carry over to recovery.
A possible solution... Create a symbolic link pointing /sd-ext to the 2nd partition? But then again, since /data now points to 2nd partition, is recovery picking up on that unknowingly and backing up the 2nd's contents when it thinks its backing up the normal /data?
I suppose I should investigate.
Edit: Yep it does backup the 2nd partition, thankfully. Just tried to install a theme made in UOT Kitchen, it borked some stuff, and the restore worked.

[Q] SD card change+Rom change from xpart to a2sd+ and taking over ext4?

Hey guys.
I've read some threads about moving ext4 from one SD to another, but this isn't exactly what I need.
I am currently on MIUI XJ 1.8.12 XPart rom and I want to change to 1.8.12 A2SD+ and a bigger SD card.
Changing the rom isn't the problem, but backing up my ext4 partition from the old SD is!
I used the newest ubuntu live CD(11.04 I believe) to partition the new SD card to FAT32/ext4. Everything is fine.
The SD gets recognized as it should. FAT32 and EXT4 partition mount and I can access them.
But with my old SD it doesn't work.
If I plug it in, FAT32 and EXT4 partition get recognized. FAT32 partition is named "195" and EXT4 is "userdata".
When I try to click the EXT4 it just dissappears. In the media tab it is listed, but I can't access it because I am not the owner of it/I am missing permissions/rights to access it.
I partitioned it with CWM recovery, but meanwhile I changed my recovery to RMD 1.03 (I don't think that this matters though...).
Now my questions:
1. How can I access my EXT4 partition to backup its content?
2. If I can't access it because I can't change permissions... do I really need to copy it or will it be enough to restore my apps that I backed up under xpart with MIUI Backup?
3. Is it a problem to restore a app backup done under xpart-script with a a2sd+ rom?
Thank you for reading!
you can backup your ext partition in recovery. i think you can also just open a file explorer and copy the folder /sd-ext (i havent tried this, so im not sure if this will work)
Ok, I haven't tried to backup it with recovery.
Will it then be possible to flash a new rom (a2sd+ instead of xpart) and restore only the ext partition?
I want a clean install with a2sd+ but I don't want to loose settings and savegames.
Just a small "up" for my thread.
I backed up my sd-ext partition and I could wipe right now.
Will there be any problems with restoring the ext partition on a new rom?
What will happen if I just wipe sd-ext and restore MIUI Backup?
Will sd-ext will just be "rebuilded" from the MIUI Backup?
Bananebieger said:
Will there be any problems with restoring the ext partition on a new rom?
Click to expand...
Click to collapse
there will only be problems if your rom does not support either your a2sd or your current ext filesystem (which is to say, does it support ext4 or does it only support ext2 or ext3?)
Bananebieger said:
What will happen if I just wipe sd-ext and restore MIUI Backup?
Will sd-ext will just be "rebuilded" from the MIUI Backup?
Click to expand...
Click to collapse
i believe so (please dont take my word for it as i have not done this before. however, im pretty sure it will be "rebuilt" as you have it included in your backup)
Thank you again.
Its the MIUI rom from XJ for Desire Classic with XPART script. Your ext Partition gets converted to ext4 if you install this rom.
Will there be problems with using sd-ext content from XPART after update to A2SD+?
Maybe I'll bother the dev from this rom

a2sd, ext not mounted... help!!!

I tried to create an ext partition for a2sd. But the script says that a2sd is not mounted. I partitioned my card with rom manager.
In last roms a2sd was working. Now I use openOptimus, with paolo v6 kernel. Please help!!
since you used rom manager, im assuming you are using clockworkmod.
clockworkmod only supports ext4. check to see if openoptimus supports ext4
I just returned from my brief test-run with DarkTremor ... because it basically trashed my phone (in collaboration with TitaniumBackup). At one point I couldn't get the partition to mount anymore either, so I reinitialized the partition table with parted. At the very least it will allow you to check the partition for errors and rule that problem out.
Like I said, eventually everything fell apart again for me, but it's still worth a try.

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