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Good Evening Everyone,
I am opening up this thread because I am not able to use the Backup Current Rom feature in my Nook Color using ext3 or ext4 file system on my micro-sd card.
Is there any way to fix this problem without using fat32?
This is what happen:
I select Backup Current Rom
The nook restarts
Waiting for SD card to mount
Can't mount SD card...
Bye and thank you very much in advance
Nook Color using Cyanogen mod 7
ClockworkMod recovery 3.2.0.1
nookUser said:
Good Evening Everyone,
I am opening up this thread because I am not able to use the Backup Current Rom feature in my Nook Color using ext3 or ext4 file system on my micro-sd card.
Is there any way to fix this problem without using fat32?
This is what happen:
I select Backup Current Rom
The nook restarts
Waiting for SD card to mount
Can't mount SD card...
Bye and thank you very much in advance
Nook Color using Cyanogen mod 7
ClockworkMod recovery 3.2.0.1
Click to expand...
Click to collapse
This sounds like you are running CM7 off of SD... you DO NOT use CWM for SD installs.
If you are not running off of SD... then I'd make sure you have the current version of CWM (3.2.0.1) and try mounting the SD from the menu's before trying anything else.
Hi, First of all, thanks for answering to my inquiry
Yes I run CM7 on from the internal memory of the Nook Color and yes, I am running CWM (3.2.0.1).
If I mount the sd card from the menu settings->storage->Mount SD Card, the sd card is mounted without any problems... The problem is when I try to Backup Current Rom
I tried also to reboot manually in recovery mood and do:
mounts and storage
mount /sdcard and I get Error mounting /sdcard!
nookUser said:
This is what happen:
I select Backup Current Rom
The nook restarts
Waiting for SD card to mount
Can't mount SD card...
Nook Color using Cyanogen mod 7
ClockworkMod recovery 3.2.0.1
Click to expand...
Click to collapse
Assuming you have a good flashable CwMR 3.2.01 uSD.
Plug it into the NC, when powering up, it should be automatically booted into CwM Recovery. From there, do the Backup.
No need to mount SD card. In fact, don't know why you would do that?
votinh said:
Assuming you have a good flashable CwMR 3.2.01 uSD.
Plug it into the NC, when powering up, it should be automatically booted into CwM Recovery. From there, do the Backup.
No need to mount SD card. In fact, don't know why you would do that?
Click to expand...
Click to collapse
1- How do I know if I have a good flashable CwMR 3.2.01 uSD?
I have the one that comes with the CM7 updated to 3.2.0.1.
2- I went on ROM Manager ->Backup Current ROM but still, when I am in the recovery mode and I click on
backup and restore -> backup
I get the message Can't mount /sdcard
I have also tried to turn on the nook and enter into the recovery mode by pressing the n key but still, I get Can't mount /sdcard when I try to backup my ROM.
What do I do wrong?
P.S. In case my CwMR is not good, how do I remove it?
nookUser said:
1- How do I know if I have a good flashable CwMR 3.2.01 uSD?
I have the one that comes with the CM7 updated to 3.2.0.1.
Click to expand...
Click to collapse
Ehhhh, honestly, no clue what you're trying to say.
Anyway, let's start from scratch.
Firstly, pls let us know your current system such ROM version, where it boots from, .....
Secondly, what are you trying to do? Make a backup?
votinh said:
Firstly, pls let us know your current system such ROM version
Click to expand...
Click to collapse
The ROM version is CyanogenMod-7-11162011-NIGHTLY-encore.
I got it in download.cyanogenmod.com/?device=encore
votinh said:
where it boots from, .....
Click to expand...
Click to collapse
It boots from eMMC (I think... I installed the ROM in the Internal Memory)
votinh said:
Secondly, what are you trying to do? Make a backup?
Click to expand...
Click to collapse
I am trying to make a backup on my micro-sd that has an ext4 file system
Bye and thank you very much.
Clear!
Now, if you did install ROM into eMMC yourself, then I assume you know how to create a flashable CwMR uSD and it is good.
Assuming the flashable uSD is fresh and good.
1. Insert the uSD into NC. Power it up. It will boot into recovery AUTOMATICALLY.
2. From the CwMR menu, using volume up/down button to to Advanced, then Backup. Let it run until finishes. Theoretically, the entire backup .zip file should be around 100MB.
3. Remove the uSD off NC.
4. The backup .zip file should probably be in the "clockworkmod" folder under ROOT. Transfer it to PC or other space to save.
That's it.
There is absolutely no need dealing with "mount SD" or "ext3" or "ext4"
I had CM7.1 installed onto the microSD (verygreen's method) and also had MIUI on emmc.
Today I decided to the unusable MIUI and install CM7 to emmc. Installation went fine but post installation of CM7(emmc) I booted into my SD CM7 to do a TB to restore onto emmc but it couldnt read/find the supposed SD(i.e. mmcblk1p4)
Next up I tried NookColor UMS. It mounts emmcblk1p1 as boot and I can add/remove files but the emmcblk1p4 gets mounted as a removable drive that "needs to be formatted".
(P.S. I did try mmcblk1p2/p3 but couldn't see anything in them either. I assumed they must be ext and since I'm on win7 I cant view them)
How do I get the emmcblk1p4 to mount/read?
thanks!
Did you use the same sd card to install CM7 to the emmc as you used for CM7?
gallahad2000 said:
Did you use the same sd card to install CM7 to the emmc as you used for CM7?
Click to expand...
Click to collapse
Yeah. The same. I put the zip in the boot partition of the card. (mmcblk1p1)
Sent from my MB502 using XDA App
Are you sure that you didn't format your card when you wrote the boot image to install CM7 to the emmc?
How did you go about installing CM7 to emmc? Which emmc install method did you use?
gallahad2000 said:
Are you sure that you didn't format your card when you wrote the boot image to install CM7 to the emmc?
How did you go about installing CM7 to emmc? Which emmc install method did you use?
Click to expand...
Click to collapse
Here's what I did:
1. Reboot into recovery. (Emmc CWM, not verygreen's installer.)
2. Unmount/remove SDcard.
3. Wipe/data factory reset.
4. Insert/ mount SDcard
5. Install zip from SDcard.
6. Choose zip and confirm
I know when we do a wipe data/factory reset then the sd-ext partition is formatted and that would delete any one of my CM7 SD partitions so I removed SD before this step.
Could it be that during flashing something happened to mmcblk1p4?
I had no ideas about the various methds for emmc install. I thought this was the standard procedure. Please tell me how to recover. Also if possible can you tell which would be the best method for doing something like this?
Sent from my MB502 using XDA App
How possibly you can use ONE uSD for both CwMR and CM7?
I don't think it works that way.
Either your provided info is incorrect or it is a completely new to us.
votinh said:
How possibly you can use ONE uSD for both CwMR and CM7?
I don't think it works that way.
Either your provided info is incorrect or it is a completely new to us.
Click to expand...
Click to collapse
As I stated in my previous post..the CWM is emmc while have 2 copies of CM7 (sdcard- verygreen and the normal emmc). And CWM recognises emmcblk1p1 as sd-card. So I put ROMs there.
And my emmcblk1p4 can't be read.
Sent from my MB502 using XDA App
Hi everyone!
I just got CM7 (latest stable release) installed on on external sdhc card. I have wifi issues with CM7 (and looking around the forums tells me that CM7 can be finicky with certain routers) so I would love to be able to use Nook's stock ROM (4.1.4) when I am having issues.
But, when I am on NC ROM, I don't see anything except the small boot partition on the SD and when I am on CM7, I don't get access to this boot partition. I am wondering if there is a way to either create another partition or make the currently existing partitions accessible on both ROMS so that I can share data between them.
I am a n00b without any Android experience so thanks in advance for your patient responses.
Please use the Q&A Forum for questions &
Read the Forum Rules Ref Posting
Thanks ✟
Moving to Q&A
andrandom said:
Hi everyone!
I just got CM7 (latest stable release) installed on on external sdhc card. I have wifi issues with CM7 (and looking around the forums tells me that CM7 can be finicky with certain routers) so I would love to be able to use Nook's stock ROM (4.1.4) when I am having issues.
But, when I am on NC ROM, I don't see anything except the small boot partition on the SD and when I am on CM7, I don't get access to this boot partition. I am wondering if there is a way to either create another partition or make the currently existing partitions accessible on both ROMS so that I can share data between them.
I am a n00b without any Android experience so thanks in advance for your patient responses.
Click to expand...
Click to collapse
Look in my signature for a link to my tips thread. I explain there how to make the SD media partition available to both ROMs (item B3).
leapinlar said:
Look in my signature for a link to my tips thread. I explain there how to make the SD media partition available to both ROMs (item B3).
Click to expand...
Click to collapse
*That's* the one I wanted to point them to.
leapinlar said:
Look in my signature for a link to my tips thread. I explain there how to make the SD media partition available to both ROMs (item B3).
Click to expand...
Click to collapse
Thanks.
Do you mean step #3 in Section B? I could edit it without running your script too, can't I?
andrandom said:
Thanks.
Do you mean step #3 in Section B? I could edit it without running your script too, can't I?
Click to expand...
Click to collapse
If whatever you have on emmc is rooted, you can manually edit it. If you have unrooted stock, then you need to flash the zip since without root you cannot edit those files manually. And I did mean item B3. Each item is a different topic, they are not steps. One topic does not depend on another. Just do B3 and no others if you want.
Yes, item B3. My mistake...
I should be able to do flash the zip from my current CM7 SD card's boot partition, shouldn't I?
So I put the update-stockemmc-vold-fstab-modified-for-partition4.zip file in the boot partition of the SD card, rebooted to Recovery mode and then booted to NC's stock ROM. NC is still using the tiny boot partition on the SD card as my external storage instead of the much larger CM7 partition. This was the same partition that was under 'My Files / Memory card' before I flashed so nothing has changed. I did this twice to double-check.
Am I doing this wrong?
andrandom said:
Yes, item B3. My mistake...
I should be able to do flash the zip from my current CM7 SD card's boot partition, shouldn't I?
So I put the update-stockemmc-vold-fstab-modified-for-partition4.zip file in the boot partition of the SD card, rebooted to Recovery mode and then booted to NC's stock ROM. NC is still using the tiny boot partition on the SD card as my external storage instead of the much larger CM7 partition. This was the same partition that was under 'My Files / Memory card' before I flashed so nothing has changed. I did this twice to double-check.
Am I doing this wrong?
Click to expand...
Click to collapse
Yes you are doing it wrong. You need to flash that file with a CWM card, not put in the boot partition of your SD. And since you did that, you need to re-flash your latest ROM on SD to correct your mistake. (I will edit my instructions to make it a little clearer that you use CWM to flash that file.)
I got NC stock ROM to see my SD card partition by following item A10. That is most excellent and thanks again!
Unfortunately, I no longer see the boot partition when I attach NC to my computer whether NC is running off stock ROM or CM7. My guess is that this is due to my failed attempt to flash from my CM7 SD card yesterday. Am I right?
I thought I could reverse that by copying the update-stockemmc-vold-fstab-return-to-stock.zip file to CM7's boot (and then booting to the recovery mode) but that seemed to have nothing.
If I understand your previous message correctly, I should re-do my entire SD card but... I have already spent a few hours downloading and customizing the Android apps. Is there a way to preserve all that before Win32diskimager destroys the contents of the SD card?
Is there a way to manually mount the /etc folder from a unix prompt and alter the file?
Does it even matter if I don't see boot while I attach NC to a computer? Are there any caveats to 'let it be'?
Questions, questions and more questions...
That leads me to the obvious question, is there a book that explains Android to someone who is not interested in programming it but wants to understand the architecture and design of the OS (and custom ROMs)?
Thanks for being patient with all these n00b questions.
andrandom said:
I got NC stock ROM to see my SD card partition by following item A10. That is most excellent and thanks again!
Unfortunately, I no longer see the boot partition when I attach NC to my computer whether NC is running off stock ROM or CM7. My guess is that this is due to my failed attempt to flash from my CM7 SD card yesterday. Am I right?
I thought I could reverse that by copying the update-stockemmc-vold-fstab-return-to-stock.zip file to CM7's boot (and then booting to the recovery mode) but that seemed to have nothing.
If I understand your previous message correctly, I should re-do my entire SD card but... I have already spent a few hours downloading and customizing the Android apps. Is there a way to preserve all that before Win32diskimager destroys the contents of the SD card?
Is there a way to manually mount the /etc folder from a unix prompt and alter the file?
Does it even matter if I don't see boot while I attach NC to a computer? Are there any caveats to 'let it be'?
Questions, questions and more questions...
That leads me to the obvious question, is there a book that explains Android to someone who is not interested in programming it but wants to understand the architecture and design of the OS (and custom ROMs)?
Thanks for being patient with all these n00b questions.
Click to expand...
Click to collapse
You do not need or want to re-set up the whole SD installation. Just put the same CM7 zip file back in the boot partition and boot to SD recovery. It will put the correct vold.fstab back on the SD. You will not lose any settings or apps you have already set up. (And putting the return to stock zip there was also the wrong thing to do. The vold.fstab for stock and CM7 are different. But don't worry, it will fix that too.)
You are not supposed to see the boot partition on the PC when you plug the nook in with the cable. You are only supposed to see 'emmc' and 'sdcard'. Under the original setup, your stock system thought the boot partition was 'sdcard' and that was why you saw it on your PC. Since you modified stock to see partition 4 as 'sdcard', partition 4 is what the PC sees, not the boot partition.
Most people have to physically take the card out of the nook and put it in the PC to see the boot partition on the PC. If you don't want to do that, use my script in item B4. But since you are on CM7, you will not be adding many things to the boot partition to install with SD recovery in the future. So it is probably best to leave things be.
And I don't know of any books to help you.
Sent from my Nook Color running ICS and Tapatalk
That is excellent news!
A bit of playing around with Astro tells me that I was wrong about seeing the 'CM7 SDCARD' partition when I was on CM7 ROM. I am only seeing the boot. Anyway, I am going to flash the CM7 ROM again and I am hoping it would fix everything.
Also, yes, I can see the boot partition when I put the SD card directly on my computer but I was also able to see it when I hooked up the NC to my computer via USB before I did my unintended tweaks but... I'll survive.
I'll be back after I flash. (Famous last words??)
Mission accomplished!
Thanks again for all your help.
For future reference after you alter stock's fstab... all you have to do is:
mkdir /sdcard/boot (only have to do this one time)
mount /dev/block/mmcblk1p1 /sdcard/boot (do this every time you want to put something on the boot partition)
put anything you want on boot partition in /sdcard/boot
DizzyDen said:
For future reference after you alter stock's fstab... all you have to do is:
mkdir /sdcard/boot (only have to do this one time)
mount /dev/block/mmcblk1p1 /sdcard/boot (do this every time you want to put something on the boot partition)
put anything you want on boot partition in /sdcard/boot
Click to expand...
Click to collapse
Yes, there is one big advantage to using that method. I think it allows the boot partition to be seen not only on the nook, but also on the PC when you plug in the usb.
leapinlar said:
Yes, there is one big advantage to using that method. I think it allows the boot partition to be seen not only on the nook, but also on the PC when you plug in the usb.
Click to expand...
Click to collapse
We could probably come up with a symlink to /dev/block/mmcblk1p1 to /sdcard/boot and avoid having to mount it everytime as well.
DizzyDen said:
We could probably come up with a symlink to /dev/block/mmcblk1p1 to /sdcard/boot and avoid having to mount it everytime as well.
Click to expand...
Click to collapse
Thank you Dizz, your suggestion got me to thinking and I was able to come up with an init.d bash script that does the trick. I just temporarily mounted sdcard and created the sdcard/boot directory and the mounted the boot partition to it, then unmounted sdcard so it could be mounted again by the system later in the boot sequence.
The only problem is now sdcard will not mount on the PC using UMS mass storage. Must be because of having a second mount within the mount. But it does mount with MTP. But that may be acceptable. I will test some more, including using Goo Manager tomorrow.
EDIT (6-21): Goo Manager works. But I think I have figured out why sdcard is not mounting in UMS. Once it is mounted in my script and the boot partition mounted under it, it cannot be unmounted. And since it cannot be unmounted, it cannot be mounted later by the system as vold. If it cannot be mounted as vold, it does not show in UMS. For now I think I will leave it as I have it in Rev 2 of my script (symlinking to the root directory with full r/w permissions). If people want to see the boot partition on the PC, just use my modified for CM9 NookColorUMS available in my tips thread.
Sent from my Nook Color running ICS and Tapatalk
Help!
When CM7 is running, my computer is no longer mounting any of the partitions when I connect NC to my computer via the USB cable.
If the NC stock ROM is running, my computer mounts all three partitions (MyNook..., boot and CM7SDcard) but calibre is not recognizing the external partitions for transfers.
Further, when I boot to my NC stock ROM, I am no longer seeing my SD card's contents in the NC's library.
This may have something to do with the fact that NC stock ROM seemed to have updated itself to 4.1.3.
Should I re-run the scripts again or am I missing something else?
When it was updated to 1.4.3, you lost the emmc mods. Just re-flash my zip with the CWM SD. You may have lost CWM on emmc too.
On CM7, you have to select the turn on storage button after you plug it in. It is not automatic like stock. Pull up the notification area and touch the turn on button.
Darn, I forgot about that 'USB' option under notifications. Enabling it allows me to find the partitions. I will run your scripts again when I find a spare mUSB card.
Thanks again for your help!
Hi there,
I successfully flashed an Android 4.2.1 Native SD ROM on the HD2's NAND (TimeJelly). This is the procedure I followed (coming from a complete erase of the phone's NAND, as the result of a failed previous attempt, lol):
Flashed HSPL 2.08
Flashed Radio compatible with 576 MB of ram (12.xx.50.xx if I recall correctly)
Flashed MAGDLR 1.13
Flashed CWM 6.0
Flashed the ROM from CWM by choosing zip from sd card.
And everything is good and working. But, I used one friend's SD to flash (since I still don't have one)... Now, I'd like to swap out the SD I used to flash (I understand it did automatically create an Ext4 partition on it?) and use the one I'll buy tomorrow.
What do I have to do? Without the SD the phone will just refuse to boot, stucking at the green HTC logo. Do I just have to partition the new SD from CWM? Do I have to flash everything again? (Jeeeeez).
I understand the EXT4 partition would be used only for the data, since it is stated Data2Ext in the ROM's title. ROM is in the NAND with DATA2EXT (the exact option I chose during installation, second one).
Any help will be GREATLY appreciated
4l3xXx said:
Hi there,
I successfully flashed an Android 4.2.1 Native SD ROM on the HD2's NAND (TimeJelly). This is the procedure I followed (coming from a complete erase of the phone's NAND, as the result of a failed previous attempt, lol):
Flashed HSPL 2.08
Flashed Radio compatible with 576 MB of ram (12.xx.50.xx if I recall correctly)
Flashed MAGDLR 1.13
Flashed CWM 6.0
Flashed the ROM from CWM by choosing zip from sd card.
And everything is good and working. But, I used one friend's SD to flash (since I still don't have one)... Now, I'd like to swap out the SD I used to flash (I understand it did automatically create an Ext4 partition on it?) and use the one I'll buy tomorrow.
What do I have to do? Without the SD the phone will just refuse to boot, stucking at the green HTC logo. Do I just have to partition the new SD from CWM? Do I have to flash everything again? (Jeeeeez).
I understand the EXT4 partition would be used only for the data, since it is stated Data2Ext in the ROM's title. ROM is in the NAND with DATA2EXT (the exact option I chose during installation, second one).
Any help will be GREATLY appreciated
Click to expand...
Click to collapse
If I understand correctly you want to move your sd content/installation to a new card, yes?
Go to the sd card thread in my signature and read post # 2. Specifically the part about backing up and restoring an sd card image.
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NYLimited said:
If I understand correctly you want to move your sd content/installation to a new card, yes?
Go to the sd card thread in my signature and read post # 2. Specifically the part about backing up and restoring an sd card image.
---
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Click to expand...
Click to collapse
Nono, I just installed a native sd ROM on the phone's NAND, and now it will simply not boot without an EXT4 formatted SD (because the /data partition is there, not on the NAND).
I repartitioned the SD from CWM this morning choosing 2 GB of EXT partition, and 2 GB of FAT32 partition, and everything is working. But, there's another problem. Whenever I reboot the phone, it will simply lose EVERY single setting, and it prompts me again to choose the language, google accounts ecc...
Any help?
4l3xXx said:
Nono, I just installed a native sd ROM on the phone's NAND,
Click to expand...
Click to collapse
no you didnt, , a nativeSD rom lives in the EXT partition, If you installed a rom to nand, then its a nand rom. If you install it to teh FAT partition, its an SD rom, if you install it to the sd-ext, its a nativeSD rom.
I understand it did automatically create an Ext4 partition on it?
Click to expand...
Click to collapse
no, you must create the ext partitions yourself.
Sounds to me like you have a nand rom, which is also using dataonext, , meaning teh rom lives on Nand, and the data partition is mounted onto the sd-ext, , in which case.....
into CWM - full backup
new sd card into phone
into cwm - create ext partition on new sd card
in cwm - selectively restore ONLY the sd-ext partition (you will need to have coppied over the fat32/clockwork/backups folder from the old card to teh new card)
reboot.
samsamuel said:
into CWM - full backup
new sd card into phone
into cwm - create ext partition on new sd card
in cwm - selectively restore ONLY the sd-ext partition (you will need to have coppied over the fat32/clockwork/backups folder from the old card to teh new card)
reboot.
Click to expand...
Click to collapse
The SD card image backup would, essentially, duplicate a card in entirety, all partitions included.
---
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NYLimited said:
The SD card image backup would, essentially, duplicate a card in entirety, all partitions included.
Click to expand...
Click to collapse
i didn't say anything about an sd card backup, i said do a full cwm backup, which includes the system, data, boot and sd ext partitions, and not the fat32 partition, and then restore only the sdext partition to the new card (after of course creating teh new ext partition on teh new card)
edit
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.
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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.