Hi, was wondering, if I was to make a full nandroid backup online, would I be able to recover my device even if its in a bootloop state? Not that my device is in a bootloop state I was just wondering.
Thanks, Mohan.
Yes, you can use a nandroid backup to recover from a bootloop, as going into recovery bypasses the normal boot sequence. It is always recommended to have a nandroid backup of your last good configuration in case you are modifying anything that might cause your phone to become unstable.
syung said:
Yes, you can use a nandroid backup to recover from a bootloop, as going into recovery bypasses the normal boot sequence. It is always recommended to have a nandroid backup of your last good configuration in case you are modifying anything that might cause your phone to become unstable.
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Ohh right thanks, another question, im backing the data on my device right now, however its skipped /boot and /recovery and is only backing up /system and /data, are the first 2 needed or will i still be able to recover my rom and data without them?
All your user data is stored within the /data folder, with the /system folder containing all of your ROM files. You will not /boot or /recovery for recovering your data.
syung said:
All your user data is stored within the /data folder, with the /system folder containing all of your ROM files. You will not /boot or /recovery for recovering your data.
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Ok, thanks for clearing that up for me.
Related
I did a nandroid backup bit it said fatal error while backing up bpws...or something like that...(one more thing...will nandroid backup...backup my apps if I lost them??)
Sent from my XT720 using XDA App
vari9 said:
I did a nandroid backup bit it said fatal error while backing up bpws...or something like that...(one more thing...will nandroid backup...backup my apps if I lost them??)
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For some reason we can't back up all the partitions in nandroid. It should be enough to backup system and data. Optional: boot, logo (if you modified M boot logo), cache (usually not necessary), sd data (if you use ext partition on SD card).
With nandroid of system and data (and the others, but only if you use them) you should expect to be able to go back to exactly how your phone was at the time you made the backup. But you will lose changes you made after you made the backups.
When I'm about to start testing ROMs, I backup system and data. To go back to my pre-testing ROM I restore system and data and then wipe cache partition.
Mioze7Ae said:
When I'm about to start testing ROMs, I backup system and data. To go back to my pre-testing ROM I restore system and data and then wipe cache partition.
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You want to say system and boot ?
Because changing a room modify system.img and boot.img
The boot.img is the same on all the ROMs thanks to the locked bootloader.
Yeah, I never even bother changing boot.img from the sbf version. If I did I'd probably use the Russian one because I think it was the most recently compiled.
Ok, I wasn't knowing that I always flash boot.img that come with ROM.
So i think my nandroid backup is nuked... i do a wipe/factory reset, wipe the cache etc etc - tried restoring the backup. After 10mins or so of waiting the process completes and i reboot the phone. I have been sitting here for over 1hr looking at the boot animation.
If there is noway to restore the ENTIRE backup, is there a way i can extract specific stuff like my text messages? I really can't afford to lose them
duwii said:
So i think my nandroid backup is nuked... i do a wipe/factory reset, wipe the cache etc etc - tried restoring the backup. After 10mins or so of waiting the process completes and i reboot the phone. I have been sitting here for over 1hr looking at the boot animation.
If there is noway to restore the ENTIRE backup, is there a way i can extract specific stuff like my text messages? I really can't afford to lose them
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That seems to happen when /datadata is full or there's some other problem with restoring /data, and the system isn't able to boot. Maybe you can wipe /datadata only and see if boots. I also know that TiBu can extract data from nandroid backups, but I'm not positive whether that applies to messaging.
korockinout13 said:
...Maybe you can wipe /datadata only and see if boots...
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Let me apologize for my ignorance but how do i do that?
duwii said:
Let me apologize for my ignorance but how do i do that?
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In recovery, go to mounts & storage, and format /datadata. Although my memory fails me as to where messages are stored...
Sent from my SGH-I897
i forgot to mention that this is a fresh installation (i formatted the entire internal storage, basically coming from STOCK).. i still need to do that wipe you refer to?
duwii said:
i forgot to mention that this is a fresh installation (i formatted the entire internal storage, basically coming from STOCK).. i still need to do that wipe you refer to?
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Well wiping /datadata may (or might not) allow the phone to boot, because the phone can't boot when that partition is completely full. It also might wipe your messages but I'm not positive.
So I recently flashed Paranoid Android based on Lollipop 5.1. Everything was working perfectly but I decided I wanted to flash Xperience kernel. I did a nandroid backup first. I flashed Xperience. After going into a bootloop I went back to TWRP to restore and retry to see what I did wrong. After restoring I am cought in a bootloop again. What should I do?
Try wiping cache and dalvik cache.
bhatt095 said:
Try wiping cache and dalvik cache.
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Already tried that. I already got it to boot but I lost all my apps and stuff so that sucks. I am still trying to make the restore work because I am lazy about downloading everything again configuring and personalizing my device again.
ekuhlmann said:
Already tried that. I already got it to boot but I lost all my apps and stuff so that sucks. I am still trying to make the restore work because I am lazy about downloading everything again configuring and personalizing my device again.
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have you backupd all the stuff (/data /system /boot ) ??? thats really all that need. wiping cache means no real data loss. if yes, then wipe the phone complety( format /sytsem /data /cache /dalvik /internal storage) (maybe copy internl storeage on pc 1st) to make sure all is fine from phons side. after that restore your backup completly but without restoring cache & try to boot.
bejunk said:
have you backupd all the stuff (/data /system /boot ) ??? thats really all that need. wiping cache means no real data loss. if yes, then wipe the phone complety( format /sytsem /data /cache /dalvik /internal storage) (maybe copy internl storeage on pc 1st) to make sure all is fine from phons side. after that restore your backup completly but without restoring cache & try to boot.
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I did not backup everything. I only backed up what was checked by default on TWRP so that is probably it. Thanks.
ekuhlmann said:
I did not backup everything. I only backed up what was checked by default on TWRP so that is probably it. Thanks.
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i think TWRP atleast backups /system , /data & /boot maybe u check it? (you can tap on cutom restore or look in the backup folder to know whats bacupd)
bejunk said:
i think TWRP atleast backups /system , /data & /boot maybe u check it? (you can tap on cutom restore or look in the backup folder to know whats bacupd)
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Damm I am so stupid. Apparently I accidentally unchecked boot so it wasnt backed up. That is most likely the reason why I am not booting.
ekuhlmann said:
Damm I am so stupid. Apparently I accidentally unchecked boot so it wasnt backed up. That is most likely the reason why I am not booting.
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Ok then its easy. Wipe the Device, install only the Rom which has the needed kernel, Boot it once, then back to recovery & restore System + Data. Done =) good luck
Btw /Boot is the kernel. So you never restored your old kernel and spirit bootlooped like you say...
bejunk said:
Ok then its easy. Wipe the Device, install only the Rom which has the needed kernel, Boot it once, then back to recovery & restore System + Data. Done =) good luck
Btw /Boot is the kernel. So you never restored your old kernel and spirit bootlooped like you say...
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Still bootloop. I am giving up. Starting over.
what boxes should i check/tick during twrp backup. my previous phone had for about five check boxes but my mi mix 2s have alot more (like: boot, cahce,recovery, system, vendor, system image, vendor image, data excl. storage, modem, efs) So what should i check/tick if i want to create backup file that will be able to fully restore my phone? (if something gfoes wrong)
I just need to know what partitions i should restore to properly boot my phone. There is rly none who can give me advice? (Sry for bad English)
plakonn said:
I just need to know what partitions i should restore to properly boot my phone. There is rly none who can give me advice? (Sry for bad English)
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It's in you! It is always good to have a Backup from EFS.
For me I always backup system, boot and data... That's it
made-in-tirol said:
It's in you! It is always good to have a Backup from EFS.
For me I always backup system, boot and data... That's it
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so what partitions may i restore? i remember on my previous phone there were partitions that couldn't be restored without causing bootloop. i would like to prevent bootloop or prevent damaging partitions and im not sure what partitions are safe to restore.
generally just back up system image, vendor image, data and boot. read here for a more detailed explanation about the system and vendor images, and they should be what you back up, rather than just the normal system and vendor checkboxes.
backing up modem and efs is also a good idea, though not required for every backup.
I keep trying to do backups but it gets about half way through and the error 255. I don't understand what I'm doing wrong. Is it not possible to backup through twrp on xt1955-5. If not any suggestions on other means. Something that would include my accounts as well would be great. I have an google acct that google refuses to give back. Be cause they say can't verify. I know password but 2sv got messed up. Which is a bunch of bs. They track everything. I would prefer to never have to go through this again. Any help would be great.
First question. What all are you trying to backup? Second, to where? Third, do you have adequate space for said backup?
Also, if you have a pin or code enabled for access to the device I would disable it for the backup process.
I'm trying to back up system and data only to my ext sd with 50g avail but only needing 12g
Pbsipher1 said:
I'm trying to back up system and data only to my ext sd with 50g avail but only needing 12g
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I was able to use TWRP to create a backup on an SD card. I'm running Android 10 and rom RR.
You might try other avenues like titanium or migrate. A quick internet search might lead you to a better procedure and app.
I've been having the same trouble. I just restored my XT1955-5 to stock RETAIL. Then installed TWRP and Magisk. I set my phone up as I like it, and want to back it up - everything I can possibly backup - boot, data, system, system image, efs, persist1, persist2, fsg, vendor, vendor image, dsp, and boot logo.
Before I tried to backup anything, I made sure that I mounted all of the partitions in TWRP.
The first few times I tried to back them all up at once, I got the error 255. So I started backing up the partitions one by one. The only partition that would NOT backup was the data partition. I still get the error 255 on the data partition backup. But all the others worked fine. I even went back and selected all the partitions except the data partition, and it backed up in one large backup just fine. So I don't know what the deal is with the data partition, but I can grab it with adb pull, so I guess I'm good to go.
I even booted back into the system and turned off the screen lock PIN - changed it to none. But I still couldn't backup the data partition via TWRP.
This should work for you from adb to backup your data partition:
Code:
adb push mmcblk0p64-data.img /dev/block/mmcblk0p64
Thanks tom2112 I'll give it a try what can it hurt. I also heard u have to be decrypted in order to backup data but can't seem to get decryption to stick
i was no able to backup using that command got
adb: error: stat failed when trying to push to /dev/block/mmcblk0p64: permission deni
Tom2112 said:
I've been having the same trouble. I just restored my XT1955-5 to stock RETAIL. Then installed TWRP and Magisk. I set my phone up as I like it, and want to back it up - everything I can possibly backup - boot, data, system, system image, efs, persist1, persist2, fsg, vendor, vendor image, dsp, and boot logo.
Before I tried to backup anything, I made sure that I mounted all of the partitions in TWRP.
The first few times I tried to back them all up at once, I got the error 255. So I started backing up the partitions one by one. The only partition that would NOT backup was the data partition. I still get the error 255 on the data partition backup. But all the others worked fine. I even went back and selected all the partitions except the data partition, and it backed up in one large backup just fine. So I don't know what the deal is with the data partition, but I can grab it with adb pull, so I guess I'm good to go.
I even booted back into the system and turned off the screen lock PIN - changed it to none. But I still couldn't backup the data partition via TWRP.
This should work for you from adb to backup your data partition:
Code:
adb push mmcblk0p64-data.img /dev/block/mmcblk0p64
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ed
Hmm... if it is "permission denied" that sounds like you need root permissions to back it up. I'm sorry, but I'm not good enough with ADB to tell you how to get higher privs. Maybe ADB SHELL then SU, but I don't honestly know.