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[Q] Sd card problems on Nook tablet Root

I just rooted my Nook Tablet and everything seemed to install okay. The problem is that when I download a app like MX video player or andftp, they give me an error message saying that permissions are denied to this location. The MX video player will not even open because it says that "SD card is not present". Has anyone else had this problem? And how can I fix this? I followed this instructions. http://forum.xda-developers.com/showthread.php?t=1354487
Thanks

is the sdcard storage usable?
use a filemanager of your choice and browse to /mnt/sdcard

Thats the thing. There is no extra sd card. I am just trying to use the internal l memory.

The internal memory is called sdcard usually.
Check "/mnt/sdcard" that should be the internal memory.

I used a filer manager to view that folder and the manager says that the sd card is not mounted. Also the permissions on the folder are d --. How do I allow programs to use /mnt/sdcard?

Has anyone else had this problem with their nook? I can barely use any appear after rooting.

I have the same problem =(. I want to use the internal memory but whenever i download it says "An SD card is required to download *******.apk."

Exact same issue I am having. I will probably just return it and try something else.

I think this post is the answer to our problems.
http://forum.xda-developers.com/showpost.php?p=19856691&postcount=50

I have the Nook Table. It is rooted, with superuser and root explorer on it. I put a 32GB SD Card into it. The B&N Storage avail is 11.87GB. The B&N settings shows the "Other Storage Avail" is 1GB. The B&N Storage sees the SD Card with 116MB avail.
When I check with the root explorer, it also shows the SD card size as 116MB. When I try to install a file from the market larger than 116MB, it says not enough room. Why can't I see and use the full 32GB?
Any suggestions as to how I fix this would be appreciated.

Cool. So do you know how to get access to the 11 GB that is on there?

As far as I can see, the Nook automatically puts user input data, such as My Files into that area. When I got into My Files, it shows 120MB used, 1004MB remaining.

wrayrb said:
As far as I can see, the Nook automatically puts user input data, such as My Files into that area. When I got into My Files, it shows 120MB used, 1004MB remaining.
Click to expand...
Click to collapse
I know that the 1 GB area gets used, but how do we gain access to the nooks 11GB memory location?

If you open the settings, device info, you will see "B&N Content Storage Available (for items purchased from B&N.)" So B&N downloads only go there.
I used the nook in native mode to upload a book to B&N Books, but I don't remember how I did it. Trying too many things. These downloads are apparently the only ones that the nook's reader will remember you are reading to resume.
I am now using Root Explorer to look over the folder structure.
In folder \data\books, there is 11GB avail. I am not sure how to find any files moved there for reading however.
In folder \data\media\B&N downloads, there is 11GB avail. I am not sure how to find any files moved there for reading however.
In folder \media\... there is 1GB available. You can move files to \media\My Files and store them here. You can see these from the B&N Library if the My Files folder is used. This works from the reader.
But I have not found how to repeatedly use the 11GB space, yet. Will keep you posted. If anyone else figures it out, please post here.

Okay thanks. I am going to look into to it right now.

i had that same problem try this, Un-root, factory reset after first boot do not setup, do the factory reset again. then re-root. shut all the way off wait a few then reboot, should work

If your Micro SD card is showing less than the actual amount of memory e.g., my 32GB showed 116MB, hook the BN to your PC. When it shows in the explorer and SD Formatter on the PC, then use SD Formatter to check the size and verify the drive letter. If there is a large unallocated space on the SD Card, it needs to be re-formatted so the boot area is the whole disk.
After formatting, SD Formatter should show the whole size. Unplug it, and the nook should say it has detected a SD Card which needs formatting. Let the nook format the SD Card. The nook will see the SD card but any apps will say the card is not mounted.
So power down the nook and power backup. Then it will mount the card and it is fully useable. (At least this worked for me.)
It should not be necessary to factory reset the nook. However, this will loose any data, documents, music etc on the SD Card. So make sure you move them to the PC before reformatting the SD Card.

wrayrb said:
If your Micro SD card is showing less than the actual amount of memory e.g., my 32GB showed 116MB, hook the BN to your PC. When it shows in the explorer and SD Formatter on the PC, then use SD Formatter to check the size and verify the drive letter. If there is a large unallocated space on the SD Card, it needs to be re-formatted so the boot area is the whole disk.
After formatting, SD Formatter should show the whole size. Unplug it, and the nook should say it has detected a SD Card which needs formatting. Let the nook format the SD Card. The nook will see the SD card but any apps will say the card is not mounted.
So power down the nook and power backup. Then it will mount the card and it is fully useable. (At least this worked for me.)
It should not be necessary to factory reset the nook. However, this will loose any data, documents, music etc on the SD Card. So make sure you move them to the PC before reformatting the SD Card.
Click to expand...
Click to collapse
But does this work for the internal 11 GB? That is the part that we cant we use?

dcharp said:
But does this work for the internal 11 GB? That is the part that we cant we use?
Click to expand...
Click to collapse
As far I can tell from googling, there is no way to access the 12GB B&N partition. I have see suggestions that a android partition manager can convert the 16GB from its present 1GB and 12GB to something like 5GB and 8GB so that you can put your stuff in the 5GB partition.
Notice that 1+12=13GB. So there is 3GB not showing, and does not show in Root Explorer either. It is probably a closed OS partition which would explain why it does not show up.

I just got my nook & had several issues getting it rooted finally 2nite I got it to load all the way & Now it is telling me I have no SD card to finish off loading Titanium Any ideas would be great! Happy new year to all
Also forgot 2 say I had tried 4 different sd cards. From 2GB - 32GB. All were empty, 2 were formatted. All 4 show up as being there even I can open them on the book. I am confused

[Q] JXD S601 Internal Memory unmounted every time the device starts problem.

Hello,
I've recently bought a JXD S601 device.
It worked properly for a few days while I was adding some games and apps for it.
CPU HARDWARE: AMLOGIC MESON3 8726M SKT SH AML8726-M3 REF F 02 (specific board in use) CPU MODEL: ARM v7 (VFPv3, NEON) CPU FREQUENCY 300.0 ~ 600.0 MHz Display: 480-272px GPU ARM Mali-400 MP 1GB NAND 397.5 MB RAM, ~220 MB Available 2GB internal Android 2.3.4 build: MID_PSP.wifi.20120105 kernel: 2.6.34
That is what benchmark showed while it was working. Both "1GB" of a faster internal NAND, and some 2 GB of additional internal memory. When the device is plugged into the USB, I used to be able to access the device memory + my micro SD card.
Now, once I start Android, I get a notice "Internal storage safe to remove. Internal storage safely stopped.". If I try to start File Manager, for example, it only shows "SD Card" which is my Micro SD card. If I take out the micro sd, it only shows "SD Card" but the folder is completely empty.
When it was working normally it showed:
Internal Memory
SD Card
As folder structure. Now the first is missing.
If I go to android settings > storage >
It shows the SD card properly if I put one in.
It shows "Internal NAND flash"
Total space
Unavailable
Available space
Unavailable
Erase internal NAND flash (tried this, it did not make any changes at all, probably because the NAND flash is unmounted and there's no option to mount it back).
Internal storage
Available space
374
This internal storage is not accessible except with ADB software. But I tried this tutorial: (can't post links so please Google "Missing internal flash memory and SD card does not mount" and check the first result on android.stackexchange site) and it did not solve the problem.
"mkdosfs -F 32 /dev/block/vold/31:8/"
I don't have 31:8 but some 200:32 and etc, I tried to use the command for any (all) of the 4, but all returned an error in ADB: "This is not a folder".
The manufacturer, JXD, has given an update.
This would be useful, after flashing the system I could again have access to the normal function, as whatever the error is, 99% the error is in system, possibly corrupted after some program (I'm new to the Android systems, not sure).
I downloaded the update from the JXD site > Download section (filename S601 0229en.rar)
But it is missing some files. All I have is the 2 docx documents, update.zip and uImage_recovery. The tutorial (upgrade method docx document) shows clearly that I need to have factory update aml, uboot aml, and uImage files as well. I don't have them in my update so I can't follow the instructions and put them on SD Card.
I tried to follow the instruction anyways, but it says that those files are missing and cannot proceed.
I've contacted the manufacturer by E-mail and asked them to send me those files, but I'm not sure if I will ever get a reply.
So now if I plugin the device to the computer without SD card, there are 2 drives, but I can't access any of them. With SD card, the first drive is my SD card and I can only access it, but not the internal storage.
Any helpful answers would be utmost appreciated. Thanks for reading the thread.

[Q] Internal Storage Space Not Correct?

P1113, JB 4.2.2 Stock Rom, CWM, rooted running and no obvious system problems.
My understanding is that there is supposed to be 4.5 gb or internal storage, or /storage/emulated/0. I have an actual 600mb of items on the internal storage space. I verified this by copying all the files/folders to pc and checking the size. Root Explorer reports same folder size for /data/media.
Settings->Storage indicates that I have 4.5 gb internal storage, 2.5 gb is free and there is 2 gb not accounted for. I should have 4 gb free? I reformatted /sdcard with CWM and still have only about 2.5 gb free and not 4.5.
2.5 gb of usable internal storage seems much to low. Flashing the rom with Odin did not change this problem. On a practical basis, I cannot install a GPS navigation app because it uses >2.5 gb.
What might the problem be? How to fix?

Is your phone storage 4gb or 8gv? As written on the box
Sent from my GT-P3100

scorpionma said:
Is your phone storage 4gb or 8gv? As written on the box
Sent from my GT-P3100
Click to expand...
Click to collapse
The tablet is 8 gb and shows that in the Settings_Storage.
There must be a method or restoring the partitioning to stock, oob, sizes?

The data partition（store user-install apps and app's data） and internal SD partition(store User data like music,video,docs eg.) is ONE partition on Samsung GTab2 Tablets. So the "lost" 2G space which puzzled you are used to store the app and app's data.

king200 said:
P1113, JB 4.2.2 Stock Rom, CWM, rooted running and no obvious system problems.
My understanding is that there is supposed to be 4.5 gb or internal storage, or /storage/emulated/0. I have an actual 600mb of items on the internal storage space. I verified this by copying all the files/folders to pc and checking the size. Root Explorer reports same folder size for /data/media.
Settings->Storage indicates that I have 4.5 gb internal storage, 2.5 gb is free and there is 2 gb not accounted for. I should have 4 gb free? I reformatted /sdcard with CWM and still have only about 2.5 gb free and not 4.5.
2.5 gb of usable internal storage seems much to low. Flashing the rom with Odin did not change this problem. On a practical basis, I cannot install a GPS navigation app because it uses >2.5 gb.
What might the problem be? How to fix?
Click to expand...
Click to collapse
Go to the /mnt/shell/emulated to look, you should have the root accounts to get the things or copy it.I hope it is helpful

ytyyutianyun said:
Go to the /mnt/shell/emulated to look, you should have the root accounts to get the things or copy it.I hope it is helpful
Click to expand...
Click to collapse
With you and other's help here, I think I understand. The device is 8gb. 2 GB is for the operating system. Two GB is for apps and data. Then 4 gb remain for internal storage.
I would like to swap 4 gb storage with the 32 gb MicroSD card. I have been doing that prior to 4.2.2 running a script that changed mount points. That no longer works. I don't know how to edit fstab file that might work. In the meantime, I'll try to spend more time using the device instead of modifying it!

8gb internal storage solutions

So I got the Moto G 1gb, 8 gigs of internal storage version.
I love this phone so far and I've pretty much set it up how I'd like it, but the 8gb internal storage has turned into an issue.
I got Appmanager III, moved pretty much everything to my 32 gig external, but I still have only like 600 mb to spare on the internal, with well over half of the external left over.
Is there another app that will allow me to move all the app data left over in the internal over to the external?
If that's not enough, I'd also be interested in knowing if there's any way I can force the system to use the external as the main storage for all the OS functions. I already used adb to set all the default downloads to the external.
Finally, I'd like to know if custom ROMs like cyanogenmod would use up less storage than the stock OS, or at least let me use more of my internal by reducing the amount of bloatware (why can i NOT get rid of google movies or google+??? come ON)
I'm rooted and have installed twrp so both root and custom recovery solutions are welcome. Thanks for your time and help!

If it were me, I'd make a Nandroid with TWRP on the external as well as a backup with Titanium and then use Titanium to delete unwanted bloatware. Wouldn't that help?
Sent from my iPad using Tapatalk

bruce7373 said:
If it were me, I'd make a Nandroid with TWRP on the external as well as a backup with Titanium and then use Titanium to delete unwanted bloatware. Wouldn't that help?
Sent from my iPad using Tapatalk
Click to expand...
Click to collapse
System apps, ie those that come with the phone such as google movies, live in the system partition. If they are updated then the update lives in the internal storage. Uninstalling via titanium will of course free up both system and internal storage space.
However just disabling them will be sufficient, this will remove all updates from internal storage and just leave the apk in the system partition. Its the internal storage that you want to be less full as this is where user apps, pictures etc all reside (assuming you haven't yet moved them to an SD card).
Disabling is less drastic than uninstalling and is maybe the preferred option in case you otherwise uninstall something that breaks your phone.

I've tried that, but for whatever reason if I disable, say, google play movie or whatever, my phone eventually ends up redownloading them? It's really odd and honestly pretty annoying.
I'd still like to know if there's any way to keep all the main app data on the external or something though. Are Cyanogenmod ROMs installers smaller? I don't need THAT much more space to feel comfortable, having 1 gigabyte would be ok with me. I just don't like having like 600 MB free at most...
EDIT: If I can just move the app data for a few games and Google Chrome, that should fix it, too. Those seem to be the real space hogs, so if I can move those I should be able to handle everything else
EDIT EDIT: Would an app like Link2SD work for this phone or has no one tested that yet?

Hi Tazzypilar, Yes Link2Sd wil work wery well. All wat you have to do is to install MiniTool Partition Wizzard Professional on your PC, then put your micro SD card in the cardreader on your desktop or laptop to make two partitions on your SdMicro card (card must be class 10). Start program MiniTool Partition Wizzard Professional and look for your microSD card on the list with disks. Right click on your removable disk (micro sd card) and you can resize your first Fat32 partition and make it smaller for at least 2 GB. After that you will have 2 GB unused space behind this Fat32 partition. Now click with right mouse on this unused space and choose „Create“ new partition and make it ext4 file system partition. You will be prompt „Are you sure that you want to make ext4 partiton because Windows can't see it ?“ and answare „Yes“ . So, one partition will be Fat32 and you can make it as big as you like depending on the size of your MicroSd card and second should be at least 2GB (or greater - also may be smaller, it's up to you) ext4 partition and there you will move your apps from the internal phone memory.
That's all, after that you have to install Link2Sd from playstore and link apps you like to move to your SdCard. Succes ! If you have more questions jut ask !
Greetz !
Sent from my GT-N7000 using xda premium

Where did my storage go?
Just asked my self a very similar questions
I attachment a screen shot
From the 8gb 3,5 go to Android system
So 4,5gb for internal I thought., but no.
I installed about 2gb of apps and 200mb cache.
Ah I forgot to mention that this is a fresh install after factory reset and still I am missing alot of storage see screen shot
Is this normal? I am on stock not rooted with some apps already moved to SD Any ideas?

Upgrade to android M, use external SD as internal card
Why not upgrade to android M and use phone's feature to use external card as internal card.

sandipkc7 said:
Why not upgrade to android M and use phone's feature to use external card as internal card.
Click to expand...
Click to collapse
I am glad you brought this up, guess what I am already on M and using the SD card feature, unfortunately I can only a small portion of the apps move to the SD card the rest stays internal

Look for posts on link2sd, it needs to be a fast card and then formatted using both std FAT and ext (linux) partitions. Then you can move almost everything.
Sent from my SM-G920F using Tapatalk

Though Im using LG H502F. Correct me if Im wrong but I think thats because the internal storage is emulated. Ive been using Link2SD and it works well. I can link app data and external data to the mounted partition. The only difference I noticed was... When opening the app it takes a couple of second or more compared to the unlinked apps... Anyways. Try to check if your storage is emulated. If it is, then that 3GB available space for a stock rom is as good as it gets. Mine have 8GB rom but the end user is only 3GB something.
Sent from my LG-H502 using XDA-Developers mobile app

merlin2380 said:
I am glad you brought this up, guess what I am already on M and using the SD card feature, unfortunately I can only a small portion of the apps move to the SD card the rest stays internal
Click to expand...
Click to collapse
In android M you can "transform" your sd card in internal memory (in Settings>Storage>SdCard>Definitions). If you have a fast 32 Gb card, you can format it to internal and it is as you have 32 Gb internal memory, but your sdcard must "live" with your phone (can't be used as sdcard in other device).
I think that is what @sandipkc7 means.

I did that not very usefull

merlin2380 said:
I did that not very usefull
Click to expand...
Click to collapse
Tried internal storage option in marshmallow and at first i taught it was rubbish, but i kinda left sdcard alone and install another ROM.
So stuff on my internal storage was nowhere to be found. I installed latest recovery (TWRP) Flashed another rom and this is where things started to get interesting.
When i first converted sdcard to use as internal storage my phone was still eating up the internal memory 8GB on the phone.
Now however android system decided to do away with internal 8GB memory and use sdcard as a main storage. my photos are stored there and all data i noticed that almost everything is installed on sdcard now. so my storage is not vanishing away. I have about 1.7GB used on there.
There are some apps that can be moved manually to sdcard storage (converted to internal) - for example some of the system apps and most of google apps stay in phones memory not on sdcard and they can't be moved manually.
So my advise is covert your card to internal memory and then do factory reset or install another ROM.
Option 2 as mentioned above in posts is to use app called Link2SD - it is worth to opt for paid version which gives you more options of what to copy to 2nd partiton of your sdcard.
i have amazon fire 7 (£50 tablet) setup with option 2 - same storage 8GB. It works well. due to lack of marshmallow for this device i cannot use internal sd as an option. I have 2GB used there and rest sits on sdcard. i have installed few resource (storage) hugging apps - 1.2 GB, 2 GB each (gameloft games) - all moved to sd with link2sd app.
on my moto g 2015 i use android build in solution and it works well. You have to keep in mind that with this solution you can't simply copy files to your computer. Sdcard is encrypted at device level and it can only be access via your phone. However you can use any wifi file transfer app to copy some files over or via phones hotspot (i use droid over wifi or web pc suite to name few).
hope this helped a little

sandipkc7 said:
Why not upgrade to android M and use phone's feature to use external card as internal card.
Click to expand...
Click to collapse
honestly, its not worth it to use sdcard as internal, despite the micro sd card being fast, it made my phone ridiculously slow..............

marsrolled said:
honestly, its not worth it to use sdcard as internal, despite the micro sd card being fast, it made my phone ridiculously slow..............
Click to expand...
Click to collapse
Because of this slow down i did a reset to default settings. This did help and now the phone works much better, just make sure you always have 500MB empty on the internal storage, anything less and tbe phone performance goes down imediatly.
All the talking about this no so vreat sdcardinteral storage feature was too much for my 32 GB samsung evo micro sd card, it died less than 6 months of service. This was already the 2nd from the evo series that hung up on me and let me to dataloss thanks to google drive all was backedup
I will now root the phone and get a custom rom, probaply cm offical

Did you ever find out how to recover that lost 2GB? I have the exact same problem and managed to maybe find the 2GB in the /data folder; however it is sys locked and I'm not ready to root a brand new phone yet.
I have 8 apps installed (not counting google/motorola pre-installed) on my Moto G3 and showing 3.72GB used of 4.53GB available internal. It then shows 1.36 GB used by apps, 1.71 MB by cache. Other 2GB is a mystery?Device storage shows only 16GB used of 37GB availabe due to SD card.

[Completed] system unmount edited

Hell everyone I'm not a tech but just an Android user with a broblem. OK, I own an ainol numy 3g Chinese version. It came with 1gb ROM, 4gb Ram storage space, I also install a 16 gb SD card in there. My problem is that, every thing I down load apps or data it goes to a 1 GB internal memory storage. And the 4gig storage is there untouched and the phone doesn't give you an option as to where to choos to store your data.
However the sd card was being recognised but the system was not automatically using it. I had to manually coppy data to it. All of a sudden the system unmounted the sdcard. It would no longer see the SD card.
So I decide to root the phone and install Root explore to check if I can detect the sauce of the problem.
First thing was I try to write to vold.fstab and Rexp reported that the system is not mounted. Same thing for the 4gig storage and the sd card. So I downloaded adb tool.
When I try to check for my system adb reported that the system is un available. Go back to root explorer it reported that my USB is not mounted. Can any one help me to solve this problem. Thanks in advance.

Already answered here:
http://forum.xda-developers.com/general/xda-assist/unmount-t3444826
Thread closed.