Database Users

Can't write to internal EMMC

Hi,
I have a nook that I rooted and put a custom rom on back about a year and a half ago. I flashed the ROM to the internal EMMC and CWM 3.2.0.1 was flashed as recovery. If it makes any difference it was a CM9 ROM
Now here's where I'm at. I can run ROMs off the sd-card but they are not stable at all. I get a whole bunch of force closes and such.
When I try and flash a new ROM to the internal EMMC it says it completes, but nothing changes. It is still the previous ROM. When I try and format the /data and /system partitions with the EMMC recovery, it doesn't complete. It says there is an error. When I format with TWRP off an sd card, it says it completes but once again, the rom is not wiped.
I've tried the 8 reboot error method, and it never gets to the stock recovery screen. It keeps booting to the EMMC ROM.
I've tried repartioning the EMMC with leapinlar's zip files. It says it successfully completes, but once again nothing changes.
Ideally I'd like to get the emmc back to stock and try and run a rom off the sdcard.
I've read the threads that I thought were applicable to my issues, but nothing seemed to work. I'm completely out of ideas. Anyone have similar issues or can provide some guidance?
Thanks.

The problem you are having running a ROM from SD is the brand and speed of SD you are using. It needs to be SanDisk class 4.
The reason the 8 failed boot does not work is you replaced the stock recovery with CWM. It needs the stock recovery to be able to complete. See my NC tips thread linked in my signature and read item A12. Assuming you can get it to flash, I have a stock recovery zip there.
I don't understand why the ROMs are not flashing. You say it gives errors when you try to wipe with CWM. What do the errors say? You used the internal CWM and TWRP on SD, but none worked. Try my bootable CWM SD to see if that helps.
I don't understand why my partition zips did not work. I know the newest TWRP will not flash them without giving an error 2 message. Try my bootable CWM SD.
Sent from my Nook HD+ running CM10.1 on Hybrid SD

Thanks for the advice...
I've been using a Patriot class 10 micro sd to run the roms/attempt to flash new roms. Its worked fine before, but I'll try and pickup another one from someplace.
When I try and format /system and /data from the emmc CWM it says "Error formatting /system" or "error formatting /data" after working away for about 5 minutes
Here's what i did:
Created CWM 6.0.1.2 Bootable SD
- Flashed NookColor-emmc-stockrecovery.zip
- Message said successfull.
- tried to restart and old CWM recovery 3.2.0.1 was still installed
Booted into CWM 6.0.1.2 Bootable SD Recovery
- mounted /system and /data
- attempted to format
- Message "Done." for both
- attempted to flash stock 1.4.3 that you have modified for CWM
- install from sdcard complete
- reboot
- Old CynanogenMod bootscreen and old rom still installed.
Using same CWM 6.0.1.2 Bootable Sd Recovery
-flashed NookColor-emmc-repair-partitions-1-4-5-6-7-8.zip and NookColor-emmc-format-partitions-5-6-7.zip
-said success
-attempted to flash stock 1.4.3
- nothing changed. Old rom still installed
One more thing I noticed:
Everytime I login to the currently flashed rom, any changes I make are never saved. For example, if i install an apk or uninstall an app, the next time i can successfully boot into the emmc ROM, those changes are reversed to the previous version. Could it be that the current rom is being stored somewhere and being reflashed when it tries to bootup?

I hate to say this, but it sounds like your internal embedded card has become read only. I have had this happen to SDs but not to emmc. The apps act like they are writing and if you leave the folder and come back, they are not there. It is like they are writing to a ramdisk instead of your SD. You might try booting to a ROM on SD and see if you can write to any of the internal partitions like /cache or /rom and see if they stick. If not, you may only be able to run off SD and maybe not even then. You might have to change your dalvik cache setting on SD so it uses /data instead of /cache.
Sent from my Galaxy Tab running Tapatalk

I tried copying a file to the emmc partition from twrp and it didn't persist after reboot... so it looks like the emmc is set to read only. I don't supposed I can change that using adb and/or software solutions right? It's a hardware issue?
Any guidance on how to change davlik cache to use /data instead of /cache? I'll be happy to get any sort of stable rom running off any SD card.
I was hoping to repurpose the nook as in in car tablet to tether a data connection to my phone and play music and such.
Thanks for your help. I appreciate you taking the time.

canjoe said:
I tried copying a file to the emmc partition from twrp and it didn't persist after reboot... so it looks like the emmc is set to read only. I don't supposed I can change that using adb and/or software solutions right? It's a hardware issue?
Any guidance on how to change davlik cache to use /data instead of /cache? I'll be happy to get any sort of stable rom running off any SD card.
I was hoping to repurpose the nook as in in car tablet to tether a data connection to my phone and play music and such.
Thanks for your help. I appreciate you taking the time.
Click to expand...
Click to collapse
I don't know of anything that can revive it. I never could revive my SD that that happened to.
To make your ROM on SD use /data for all of the dalvik cache, create a file in /data named local.prop. In that file put this line:
dalvik.vm.dexopt-data-only=1
Next time it boots the system file portion of dalvik cache will be on /data along with the installed app portion.
Sent from my stock Nook HD+ using XDA Premium

I now have a stable version of CM 7.2 running off the SD card. I put the davlik cache on the data partition and everything seems to be running pretty smooth.
I'll keep messing around seeing if there is anything to revive the internal emmc, but at least I can use the nook off the SD card again.
Thanks for helping me troubleshoot and figure this out. Cheers.

[Solution] Unmountable /data/ partition.

If you are using CWM 6.xx and you attempted to 'format' your sd card entirely, you may have experienced some troubles.
I formatted the /system, /data, /cache manually in CWM and found alot of problems which had arisen afterwards.
After you format these, you may notice that you can no longer mount /data/ ! This is a big problem. You cannot install new roms, or do anything because the /data/ partition cannot mount.
Solution:
1. Using Odin, flash select PDA and your stock TouchWiz based ROM. Also use the partitioning file for the i9505 device. (Make sure you tick repartition in Odin), this process may or may not work with or without the paritioning file, if your filesystem is corrupt its probably a good idea.
2. Once this is complete, reboot, you will see that the Samsung logo appears, and it may appear that things have worked, but it wont work yet.
3. You will need to install CF-AUTO-ROOT. This roots the phone, but it also seems to fix the partitioning issue.
4. Once installed you should be able to boot into TouchWiz.
5. Install Philz Advanced CWM recovery!
6. Use the feature of 'format phone for ROM'. This will format the SDCards /system/, /data/ etc PROPERLY and wont cause you any problems.
7. Install your flavor of ROM
8. Enjoyjoy
I searched the internet everywhere attempting to fix this unmountable /data/ partition, only via a french-english translated forum was I able to learn how to do this.
Further reading:
http://www.phonandroid.com/forum/recuperer-error-mounting-data-t56933.html
If it helped, please thank me
Cheers, ostenn.

ostenning said:
If you are using CWM 6.xx and you attempted to 'format' your sd card entirely, you may have experienced some troubles.
I formatted the /system, /data, /cache manually in CWM and found alot of problems which had arisen afterwards.
After you format these, you may notice that you can no longer mount /data/ ! This is a big problem. You cannot install new roms, or do anything because the /data/ partition cannot mount.
Solution:
1. Using Odin, flash select PDA and your stock TouchWiz based ROM. Also use the partitioning file for the i9505 device. (Make sure you tick repartition in Odin), this process may or may not work with or without the paritioning file, if your filesystem is corrupt its probably a good idea.
2. Once this is complete, reboot, you will see that the Samsung logo appears, and it may appear that things have worked, but it wont work yet.
3. You will need to install CF-AUTO-ROOT. This roots the phone, but it also seems to fix the partitioning issue.
4. Once installed you should be able to boot into TouchWiz.
5. Install Philz Advanced CWM recovery!
6. Use the feature of 'format phone for ROM'. This will format the SDCards /system/, /data/ etc PROPERLY and wont cause you any problems.
7. Install your flavor of ROM
8. Enjoyjoy
I searched the internet everywhere attempting to fix this unmountable /data/ partition, only via a french-english translated forum was I able to learn how to do this.
Further reading:
http://www.phonandroid.com/forum/recuperer-error-mounting-data-t56933.html
If it helped, please thank me
Cheers, ostenn.
Click to expand...
Click to collapse
I had the same issue. I think its a bug present in most recoveries at the minute. I've just taken to manually deleting the folders on the internal SD card. To stop this happening.
I remember, in one day, I had to flash the pit file and stock rom 4 times. I think this is actually quite intermittent. Sometimes it doesn't corrupt the /data partition and sometimes it does.
It's really quite damn annoying. At least there's an easy enough fix - if not time consuming.
Sent from my GT-I9505 using Tapatalk 2

[Q&A] [30 OCT 2012][DEV] NativeSD Rom Boot Script for HD2

Q&A for [30 OCT 2012][DEV] NativeSD Rom Boot Script for HD2
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Before posting, please use the forum search and read through the discussion thread for [30 OCT 2012][DEV] NativeSD Rom Boot Script for HD2. If you can't find an answer, post it here, being sure to give as much information as possible (firmware version, steps to reproduce, logcat if available) so that you can get help.
Thanks for understanding and for helping to keep XDA neat and tidy!

Unexpected end of archive
File: adbfixed_ramdisk_NativeSD_AOKP.zip
Archive seems to be corrupted.

rebgershon said:
Thanks for your speedy reply.
I have some further questions though:
1. which 'recovery' do you mean and where will I find Titanium backup and tytung tool?
2. I have downloaded the paragon software to copy the sd card contents which I will try to do now. However, what are the 'normal' methods used to resize as I mentioned in my previous post that the ext4 partition seems fixed when using the mini tool partition software?
TIA,
Geoff.
---------- Post added at 10:05 AM ---------- Previous post was at 09:59 AM ----------
Robbie,
I have put the sd card into the slot on my computer (which is a year old HP laptop) and also tried in a USB port but the Paragon software is not recognising the card at all, with only the c drive being shown. However, I am able to see the contents of the fat32 partition of the SD card through explorer as normal. Am I doing something wrong??
Click to expand...
Click to collapse
Which recovery did you use to install the rom? does it have facility to backup ext partitions? I know macs18max edited SDrecovery can do this from the first post here http://forum.xda-developers.com/hd2-android/nand-dev/nov-17-2015-kernel-3-0-101-t3251438 others can too.
titanium backup can be found in play store, free and paid versions. haven't used it myself for a while and only used free one. people on this forum swear by it though.
tytung's NativeSD backup might have to be searched for, I'm afraid.
Don't know why your ext partition is not showing up. What rom(s) are you using?
magldr or clk?
Sounds like you will have to use a backup method from the phone as opposed to pc, to store the contents on your FAT partition, then move/copy them to pc.
does this make sense?

Robbie P said:
Which recovery did you use to install the rom? does it have facility to backup ext partitions? I know macs18max edited SDrecovery can do this from the first post here http://forum.xda-developers.com/hd2-android/nand-dev/nov-17-2015-kernel-3-0-101-t3251438 others can too.
titanium backup can be found in play store, free and paid versions. haven't used it myself for a while and only used free one. people on this forum swear by it though.
tytung's NativeSD backup might have to be searched for, I'm afraid.
Don't know why your ext partition is not showing up. What rom(s) are you using?
magldr or clk?
Sounds like you will have to use a backup method from the phone as opposed to pc, to store the contents on your FAT partition, then move/copy them to pc.
does this make sense?
Click to expand...
Click to collapse
Thanks again Robbie. Tis whole thing gets wierder as follows:
I'm using Nexus HD2 Jellybean-CM10_V1.3a as the rom. In the recovery directory of the SD card there's the Jellybean rom as mentioned, clrcad (dated 8/7/2010, haret, initrd.zip, startup text document & zImage (dated 5/9/2012).
There's also a NativeSD directory with the same files as the recovery directory.
Running Haret from the recovery directory takes me to 4EXT Recovery v2.2.7 RC5.
It also shows: E: can't find misc
E: failed to find "cache" partition to mount at "/cache".
In the info section it lists the sd-ext partition ext4 1012MiB free 135.5mb, sdcard fat32 14175 MiB free 8.0gb.
Attempt to backup fails as can't find cache partition, boot, recovery logs on E:
I loaded the Paragon software on my newer laptop but no ext partition was found. I then loaded the Paragon software on an older laptop and hey presto the partition was there. I tried to back this up on the pc but had repeated problems with files not being read. Then suddenly the ext partition disappeared on the pc but phone booted into Android-phew!.
I tried on the 1st pc and suddenly it recognised the ext partition. I tried backing up the partition but again had read problems. The fat32 partition backed up without 1 error.
So where do I go now? I don't want to loose the data in the ext partition but don't seem to be able to backup. Any suggestions welcome.
Geoff.

rebgershon said:
Thanks again Robbie. Tis whole thing gets wierder as follows:
I'm using Nexus HD2 Jellybean-CM10_V1.3a as the rom. In the recovery directory of the SD card there's the Jellybean rom as mentioned, clrcad (dated 8/7/2010, haret, initrd.zip, startup text document & zImage (dated 5/9/2012).
There's also a NativeSD directory with the same files as the recovery directory.
Running Haret from the recovery directory takes me to 4EXT Recovery v2.2.7 RC5.
It also shows: E: can't find misc
E: failed to find "cache" partition to mount at "/cache".
In the info section it lists the sd-ext partition ext4 1012MiB free 135.5mb, sdcard fat32 14175 MiB free 8.0gb.
Attempt to backup fails as can't find cache partition, boot, recovery logs on E:
All the above is normal for NativeSD, your sdrecovery doesn't allow for backing up the ext partition
I loaded the Paragon software on my newer laptop but no ext partition was found. I then loaded the Paragon software on an older laptop and hey presto the partition was there. I tried to back this up on the pc but had repeated problems with files not being read. Then suddenly the ext partition disappeared on the pc but phone booted into Android-phew!.
I tried on the 1st pc and suddenly it recognised the ext partition. I tried backing up the partition but again had read problems. The fat32 partition backed up without 1 error.
So where do I go now? I don't want to loose the data in the ext partition but don't seem to be able to backup. Any suggestions welcome.
Geoff.
Click to expand...
Click to collapse
perhaps paragon wasn't the best choice for backing up. Try the recovery linked-to above, put it on your sdcard and run haret from its folder (you might have to change the folder name so that it is not the same as your other recovery folder). then select backup, then scroll down to sdext, tick it and swipe, it should copy to your FAT, and it seems you have plenty of space there. I haven't tried this backup method, which is why I said use 2 methods to backup. the more the merrier.
There are free sms, phone and app backup applications such as superbackup in playstore.
There was also a way to copy the whole sdcard as an image, partitions included, I will have a look for it.

Robbie P said:
perhaps paragon wasn't the best choice for backing up. Try the recovery linked-to above, put it on your sdcard and run haret from its folder (you might have to change the folder name so that it is not the same as your other recovery folder). then select backup, then scroll down to sdext, tick it and swipe, it should copy to your FAT, and it seems you have plenty of space there. I haven't tried this backup method, which is why I said use 2 methods to backup. the more the merrier.
There are free sms, phone and app backup applications such as superbackup in playstore.
There was also a way to copy the whole sdcard as an image, partitions included, I will have a look for it.
Click to expand...
Click to collapse
Robbie thanks again.
I downloaded the recovery folder from your link but there's only 2 files in it namely initrd.gz and zImage, there's no haret. I have copied the haret, clrcad & startup text files files from the old recovery directory but it just hangs on running haret.
Geoff.

Sorry Geoff, I am not giving you very good advice. That recovery has a 3.0 kernel in it, and won't boot from haret. Am working ATM, will reply later.

Robbie P said:
Sorry Geoff, I am not giving you very good advice. That recovery has a 3.0 kernel in it, and won't boot from haret. Am working ATM, will reply later.
Click to expand...
Click to collapse
Hi again Robbie,
I have good news and bad!!
I managed to eventually get the Paragon software to recognise the ext4 partition on my new laptop. What's odd is that the ext4 partition is listed under the name of the c drive. I then unmount and remount the ext4 with a new drive letter and I can then read/write. So having managed to mount, I was able to copy off all the files from the FAT32 & ext4 partitions to my hard disk. That's the end of the good bit.
As its 3 years since I did the last Jellybean install, I'd forgotten what to do and kept seeing posts about magldr and custom radio roms. I tried to boot into magldr on the phone while doing the sd card backups but it wouldn't go into it. I had assumed I must have installed it when I did the original SD rom install and I then wrongly assumed I needed to reinstall the HSPL4 and custom radio roms to get it on again. The former was ok but the latter caused the phone to hang on reboot at the HTC logo. At this point I went to the bootloader screen but after having the 4 colour screen I then got the white screen with blue writing for updating the rom from an sd card (there must have been an unzipped rom on the card). I mistakenly hit the install rom button and this erased all the phone's data before I'd had chance to use SD Backup, a programme I hadn't bothered using since long before I converted to Android.
I then looked back in my old bookmarks and came across a facebook guide to the Native SD installation which didn't mention magldr at all and it was at this point that I realised I'd not previously loaded it on the phone, although I did eventually manage to get it on after downgrading the HSPL to 2.08 and successfully flashing the custom radio only to be permanently booting into magldr-so I again reflashed the stock rom to get rid of it! What a waste of time!!
Having backed up the sd card partitions, I erased the partitions and made a new ext4 of 3gb and copied back the files to both partitions. I tried to boot the haret in the native SD folder but the phone hung at the HTC logo and then rebooted itself back into windows. I tried installing the jelly bean rom as an update using ext4 recovery but no joy. I tried wiping the ext4 partition and reformatting with EXT4 recovery then installing the rom as a new install which then booted into Android ok after which I overwrote the ext4 files with the previously saved ones. Now I get a boot into the CyanogenMod screen but no further even after waiting 30 mins. I also tried using NAtiveSD onetouch recovery to try and make a backcup of the old system and then restore over the new install (but not the boot files) but again I just get the hung CyanogenMod screen.
So do you have any idea of how I might get a successful boot with my old data? Perhaps I'm missing something else in the overwrite/restore process but I can't see what.
Any further help would be grateful-perhaps you have forum contact who might be able to help as well.
TIA,
Geoff.:crying:

Help to Switch from Hydrogen to Oxygen on Oneplus 5 Chinese Version

Hi friend, im a noob here, I need some help
I bought Oneplus 5 Chinese version with Hydrogen Os.
I follow all steps, download the full oxygen rom + OTA on 3 different links and downloaded the adb and minimal fastboot.
i made all steps doing the developer android activation on OS, usb debugging and etc.
i booted it on recovery chosen adb installation and made all prompt commands, when it start to install it failed on 0% and the phone gives me the Installation Failed note, I need to know if the correct rom is that folder or zip that I download on one plus site. when I copy the *.zip or folder to internal storage on the phone it doesn't recognize on that system update menu with local update. I have tried many times and with different forms, what I did wrong?
sorry my bad English because im from Brazil.. thks!

brunomarzullo said:
Hi friend, im a noob here, I need some help
I bought Oneplus 5 Chinese version with Hydrogen Os.
I follow all steps, download the full oxygen rom + OTA on 3 different links and downloaded the adb and minimal fastboot.
i made all steps doing the developer android activation on OS, usb debugging and etc.
i booted it on recovery chosen adb installation and made all prompt commands, when it start to install it failed on 0% and the phone gives me the Installation Failed note, I need to know if the correct rom is that folder or zip that I download on one plus site. when I copy the *.zip or folder to internal storage on the phone it doesn't recognize on that system update menu with local update. I have tried many times and with different forms, what I did wrong?
sorry my bad English because im from Brazil.. thks!
Click to expand...
Click to collapse
Put the OOS rom in the root directory of your sdcard (not in a subfolder), then boot into recovery and choose install from internal storage. After flashing the rom do a data factory reset and you should be good to go. Don`t know for sure if you have to unlock the bootloader first because its a Chinese device.

gee2012 said:
Put the OOS rom in the root directory of your sdcard (not in a subfolder), then boot into recovery and choose install from internal storage. After flashing the rom do a data factory reset and you should be good to go. Don`t know for sure if you have to unlock the bootloader first because its a Chinese device.
Click to expand...
Click to collapse
The doubt is I really don't know if the correct (FULL OXYGEN ROM) file to copy is a zip file or any other extension file? I downloaded on website, inside it has some folders and some IMG and DAT files.
when you said SD CARD you mean put the zip file inside a REAL SD CARD? or you mean the internal storage on the phone?
i have copied the downloaded zip file on internal storage root, and when I made a boot recovery and chosen the internal storage it finds the zip file but again when I proceed the installation it gives me again the INSTALLATION FAILED MSG..
does the OnePlus5Oxygen_23_OTA_010_all_1707032122_2a134296766a4804.zip on one plus site?
is that the correct file? thks

brunomarzullo said:
The doubt is I really don't know if the correct (FULL OXYGEN ROM) file to copy is a zip file or any other extension file? I downloaded on website, inside it has some folders and some IMG and DAT files.
when you said SD CARD you mean put the zip file inside a REAL SD CARD? or you mean the internal storage on the phone?
i have copied the downloaded zip file on internal storage root, and when I made a boot recovery and chosen the internal storage it finds the zip file but again when I proceed the installation it gives me again the INSTALLATION FAILED MSG..
does the OnePlus5Oxygen_23_OTA_010_all_1707032122_2a134296766a4804.zip on one plus site?
is that the correct file? thks
Click to expand...
Click to collapse
I meant the internal storage as there is no actual sdcard slot. and yes this OnePlus5Oxygen_23_OTA_010_all_1707032122_2a134296766a4804.zip is the correct file. Do not extract the rom.zip! As i said maybe you have to unlock the bootloader first in order to flash the rom but that is not the case as i read. So put the downloaded OTA.zip on the sdcard, wipe cache and flash it in recovery in install from internal storag and the factory reset. There are several video`s on YouTube on how to do it https://www.google.nl/url?sa=t&rct=...LyJ4Ho&usg=AFQjCNEFn7t35Gdh9Vzxxwfe4oBMs4EH_Q.

[G950F] No /data partition in TWRP after flashing oreo update

Hi,
ive just followed the flashable oreo TWRP thread in here to test out Oreo.
My device is S8 G950F
link -> https://forum.xda-developers.com/ga...1-10-flashable-oreo-twrp-dump-beta-2-t3703083
After that TWRP didnt recognized my data partition anymore...:crying::crying:
So i installed latest TWRP in Odin again (had 3.1.1 before 3.2.0.0 after) - didnt helped.
Ive done a full restore with odin after i downloaded the firmware via samfirm, this is the exact firmware number ive used:
G950FOXM1AQJ5_CL12401979_QB15459675_REV00_user_low_ship
Still no success
I also tried flashing supersu (2.82) and dm-verifity (v.6.0).
Any ideas?
Is it just the partition table in twrp that needs to be updated or some stupid thing i forgot?
Regards

create one !!

popmpopm said:
create one !!
Click to expand...
Click to collapse

when you use wipe
choose data and use repair or change file system option
after resize file system and voila !!

popmpopm said:
when you use wipe
choose data and use repair or change file system option
after resize file system and voila !!
Click to expand...
Click to collapse
Yup already figured it out 5 mins after I created this. Shame over me

please help.
i have the same problem.
ive installed clean google edition orea (i had google edition nought 7 before).
everything works except /data/ mount in twrp.
the solution above didnt work, gave me errors.
do i need to format data?!
it will format all my current /data/ or also the internal storage?
thank you.

eliazu said:
please help.
i have the same problem.
ive installed clean google edition orea (i had google edition nought 7 before).
everything works except /data/ mount in twrp.
the solution above didnt work, gave me errors.
do i need to format data?!
it will format all my current /data/ or also the internal storage?
thank you.
Click to expand...
Click to collapse
Ok yeah it'll format whole internal storage.
You need to change the partition type of /data to f2fs and then change it back to ext4. Then two recognize /data again

Thargorsson said:
Ok yeah it'll format whole internal storage.
You need to change the partition type of /data to f2fs and then change it back to ext4. Then two recognize /data again
Click to expand...
Click to collapse
How do i format if twrp can't access /data?

eliazu said:
How do i format if twrp can't access /data?
Click to expand...
Click to collapse
It's not format.
Go to wipe, advanced wipe, repair or change partitions ,select data, select change partition type, select f2fs slide to continue.
Then do the same with data and change back to ext4.

eliazu said:
How do i format if twrp can't access /data?
Click to expand...
Click to collapse
its not magic you have all option in twrp wipe

I have done this and it works but as soon as i reboot and go back to twrp it doesnt recongize /data am i doing something wrong

after so many tests I discovered that twrp can read and write data only if you flash last supersu beta, magisk and supersu official both doesn't work:
https://forum.xda-developers.com/apps/supersu/2014-09-02-supersu-v2-05-t2868133

Does the resize option or file system option wipe internal storage?