I use RA for my recovery system, and even google failed me here.. what gets backed up using nand + ext vs just nand?, and when your doing regular nand backups, which is better to do?
I think the ext partition is where apps2sd apps reside on the SD card. It's a separate partition, so it wouldn't be normally included in a nandroid backup because it wouldn't normally be overwritten when flashing a new ROM or whatever.
I think.
Correct....the ext Partition on your sd card is where the apps2sd program backs up you apps. Doing a nandroid backup backs up everything apps, the rom itself, and user data....on to the main part of the sd card....
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Also you really just want too do a nand backup before you flash a new rom...just incase something goes wrong....a normal backup is fineevery other time
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ok well on my Amon Ra Recovery.
there is an option for nandroid back up and theres another
option about nandroid + ext backup.
i think thats it.
but i have no clue what nandroid +ext backup.
what does ext mean? extension?
whats the extension for?
and there other options are google proprietary files back and restore.
what the heck is that?
please some give me answers.
it is for people have an multiple partitions on their SD card. ext is a type of partition
The ext partition is a linux partition type used by Dark Tremor's a2sd. Basically, if your custom rom supports a2sd, you can extend your apps installation space by creating an ext 2 (can be upgraded to ext 3 and 4) partition on the sd card besides the normal fat32 partition. If you don't have an ext partition, just do a simple nandroid backup. Otherwise do nandroid + ext backup if you do have one.
I am unsure what options I should choose in the NAND backup section. I usually just leave it on the default (data, system, boot). Backing up only these three will make the ROM to like I had it before correct? Or do I need to select extra options? Thanks
I do em all just to make sure, but would be good to know.
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Backing up .android_secure will back up apps that you've moved to the SD card using the built in apps to SD that was introduced in FroYo. Backing up sd-ext will backup your ext partition if you have one. If you don't know what an ext partition is or how to use it, you probably don't have it and don't need to back it up. I have a separate backup of only wimax and don't back it up every time. It isn't something that you need to restore every time, so I'd make a wimax backup once and keep it safe. I can't remember what other options there are, if any. I usually just backup boot, data, and system since I never move apps to my SD card. If they install to my SD card, I move them to internal memory. They run better there, and I've never even come close to running out of internal memory.
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I just choose 'perform backup 'at bottom,never had a problem...gets everything I need
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I do everything but cache
Nobody knows for sure?
When doing your firsr backup always do 2 backups. One backup with everything unchecked except WIMAX. You always want to keep this backup incase your 4g ever stops working. After that make a backup with only boot system and data checked. Do this and you will be all set. Also I recommend downloading titanium backup and making a backup of every app that you use on a frequent basis.
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Thanks man. And I have a backup of my RSA keys that I got through a root method. It has wimax.img in it. Same thing correct?
Recently I've had problems with my sd-ext partition. When I try to backup(with CWM 3.0.0.5) my current rom, then at the backup process it doesn't write 'backing sd-ext' and when trying to restore it says 'sd-ext image not found skipping'.
I tried installing CM7 and a few other roms skipping backup, at first install it didn't read my SD card at all, second installing SD worked, but Titanium Backup didn't read the partition and all apps were installing on internal memory.
Right now I'm using a Sense 2.1+3.0 rom and everything is working good, my Desire is S-ON if it matters something.
Thanks in advance.
Check the partition in gparted
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I did, even formatted my entire SD card and redid fat32 partition and ext3.
Wipe, reformat and titanium restore?
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the 3.0.0.5 is well know to not backup the sdext
(I also think its the unique CWM with that bug..so i dont know why u using that)
use the latest 5.0.2.0...seems to work fine
I have been using this version for a while and didn't have this problem so far.
This bug only happened in the last 2 weeks or so.
And what do you think about the problem with CM7? that is not reading the sd-ext and sometimes not that sd card at all?
Hello. I'm going to buy a new SDcard. To successfully move the sdext partition from the old SDcard, can I just perform a nandroid+sdext backup and restore that backup after inserting the new SDcard? Given that the new SDcard is formatted in the same way as the old one (but a slightly larger ext4 partition). Or probably even just take a backup of the sdext partition only; I believe that is possible with RMD recovery.
Get 4ext recovery and make advanced backup/sd-ext only, when you're done backup everything from sdcard to HDD.
Then just insert new sdcard, partition it, restore all the files from HDD and do advanced restore/sd-ext only.
You're done.
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k3lcior said:
Get 4ext recovery and make advanced backup/sd-ext only, when you're done backup everything from sdcard to HDD.
Then just insert new sdcard, partition it, restore all the files from HDD and do advanced restore/sd-ext only.
You're done.
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Click to expand...
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Thanks, I just wanted to make sure that backing up and restoring on a new sdcard will work. I'll stick with RMD recovery because it can also only backup the ext partition.
Do I need to wipe the sdcard partition before I flash? Thanks
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1st thing before you do anything: nandroid backup
now you are safe
- if you are upgrading the same rom, then don't wipe the sd partition, otherwise you lose your apps... generally a rom upgrade you can flash straight over the top without wiping anything.
- if you are switching roms, then yes you do a full wipe. make a titanium backup or similar to keep all your apps. then if you're using 4ext recovery there is an option "wipe all partitions except sd card", this formats everything: system/data/cache/sd-ext etc, but not the FAT32 partition of your sd card, where music/photos etc are stored.
As said, DO NOT wipe the sd partition! It's safe to write skill the others because you do have a titanium backup of your apps....
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