Ok. I'm a bit confused. I'm on stock 3.2 Rooted. I just got a 16GB SD card and threw it in the Xoom. I was expecting to be able to go to SETTINGS>STORAGE and format the SD CARD. The system recognizes there is a SD CARD but it won't let me format it and won't let me save any apps to the SD CARD...even apps that are intended to be saved to the SD card. I also noticed that the SD CARD is saved to a pretty strange directory...something like mnt/extn and the actual directory /sdcard is internal? WTF?
Ok, someone please advise me what is going on...am I basically only able to view pictures and play movies off of the SD card and nothing else? I was hoping I could save apps to the SD.
The problem is, that the external SD-card is mounted read-only thanks to moto... No clue, why. I have to use ES explorer, activate root-explorer functions and grant su-rights to be able to write to the external SD-card. There are tools around which claim to unmount and remount it as r/w but those didn't work for me...
jakeomat said:
The problem is, that the external SD-card is mounted read-only thanks to moto... No clue, why. I have to use ES explorer, activate root-explorer functions and grant su-rights to be able to write to the external SD-card. There are tools around which claim to unmount and remount it as r/w but those didn't work for me...
Click to expand...
Click to collapse
You can write to external sdcard--my Titanium Backup is written to the ext. Sdcard--but in Honeycomb, apps can't run from ext. sdcard. There's no need with 32gb of internal storage.
Just keep all media files on ext.sdcard--they take up way more space than apps do.
okantomi said:
You can write to external sdcard--my Titanium Backup is written to the ext. Sdcard--but in Honeycomb, apps can't run from ext. sdcard. There's no need with 32gb of internal storage.
Just keep all media files on ext.sdcard--they take up way more space than apps do.
Click to expand...
Click to collapse
Yepp, as I say: You can write to the external SD-card, but only if the app that wants to write has su-permisson. Titanium most definitely has, otherwise it wouldn't be able to backup the system files...
Hello to all,
With my desire HD my sd is used for storage all my app and games data. The internal memory is for app and I have a lot of apps and I have a 32gb sd
With my Transformer 16gb with another 32gb sd I can't have the same storage capacity of my dhd since after the instalation of some games and the download of relative resources I have my internal sd full!!
So I have discovered gltosd but it works good for gameloft and data directories but for other games such as roc or dead space which download data on different directory I can't use my external sd as storage!
Also titanium backup can't backup on my external storage but only in internal and so... Is not a safe backup!
So my question is.... Is possible to make the internal sd as system memory and external sd as normal sd??
Of course I have root and custom ROM.
Thanks
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mattiadj said:
Hello to all,
With my desire HD my sd is used for storage all my app and games data. The internal memory is for app and I have a lot of apps and I have a 32gb sd
With my Transformer 16gb with another 32gb sd I can't have the same storage capacity of my dhd since after the instalation of some games and the download of relative resources I have my internal sd full!!
So I have discovered gltosd but it works good for gameloft and data directories but for other games such as roc or dead space which download data on different directory I can't use my external sd as storage!
Also titanium backup can't backup on my external storage but only in internal and so... Is not a safe backup!
So my question is.... Is possible to make the internal sd as system memory and external sd as normal sd??
Of course I have root and custom ROM.
Thanks
Inviato dal mio Desire HD usando Tapatalk
Click to expand...
Click to collapse
You CAN set Titanium Backup to use the external MicroSD card, which is at "/Removable/MicroSD/TitaniumBackup/". I have 382 apps and games installed on my 32GB internal storage and still have 26.31GB available. I have no apps installed on the MicroSD card, only *.zip files for ROMS and kernels and such.
sidneyk said:
You CAN set Titanium Backup to use the external MicroSD card, which is at "/Removable/MicroSD/TitaniumBackup/". I have 382 apps and games installed on my 32GB internal storage and still have 26.31GB available. I have no apps installed on the MicroSD card, only *.zip files for ROMS and kernels and such.
Click to expand...
Click to collapse
Thanks but where you have the app resources? On internal or external sd?
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The answer to your basic question (can I make the external micro-SD card the main SD card is): yes, if and only if you are rooted.
Before I explain how, let me explain how the "internal SD card" works on the Transformer. (If you just want to know what to do, you can skip this section).
How the "internal SD card" works on the EEE Pad Transformer
Normally on Android, /data and /sdcard point to two separate file systems, one internal, and the other external. However on devices with an internal "SD card" this changes.
The simplest way to have an internal "SD card" is to simply partition the storage into two file systems, one for /data, and the other for /sdcard. Several devices do just that. The downside is that if you put too much space in /data it is effectively wasted, while too little space in /data limits the number of apps that can be installed or how much data they can store "locally".
To solve that it is possible to store the "internal SD card" data in the same filesystem as /data. A new directory was created called /data/media, all the files in the "internal SD card" are actually just files in that folder. They both therefore have the same amount of free space and total space. [1] But Android insists that /sdcard must be a FAT32-compatible file system, while /data must not be. The solution is simple. Create a fake file system driver that pretends to be fat32, but simply reads from and writes to /data/media. That is what the transformer does.
The fake FAT32-compatible filesystem is actually mounted at /mnt/sdcard. Finally there is a symbolic link called /sdcard, which points to /mnt/sdcard. There is one logical reason for doing that, which is is to make it easy change /sdcard to point to an external card. Thanks ASUS for making our job simple.
How to use an external SD card as the primary SD card
Use [highlight]adb shell[/highlight] or the Terminal Emulator app from the market to open a shell.
If the prompt ends with a "#", skip to the next step. Otherwise type [highlight]su[/highlight] (followed by enter) to get a root shell.
Type [highlight]mount -o remount,rw /[/highlight] to ensure the root file system is mounted read/write.
Type [highlight]rm /sdcard[/highlight]
Type [highlight]ln -s /Removable/MicroSD /sdcard[/highlight]
reboot
That should do it. One last thing you may want to do is to to move the files from the "internal SD card" to the external one, or delete the files stored there to free up space. To do this you can use the built-in File Explorer. From the menu in the top right, uncheck the "hide system files" option. Now you can find the "internal SD card" at /mnt/sdcard. Delete the files or copy them to /sdcard as you see fit.
Footnote:
[1] Oddly this means that unless you do what I've outlined in this post, using the built-in apps2sd functionality simply wastes space.
Not OP, but appreciate the great explanation.
Sent from my Transformer TF101 using xda premium
jsmith45 said:
The answer to your basic question (can I make the external micro-SD card the main SD card is): yes, if and only if you are rooted.
Before I explain how, let me explain how the "internal SD card" works on the Transformer. (If you just want to know what to do, you can skip this section).
How the "internal SD card" works on the EEE Pad Transformer
Normally on Android, /data and /sdcard point to two separate file systems, one internal, and the other external. However on devices with an internal "SD card" this changes.
The simplest way to have an internal "SD card" is to simply partition the storage into two file systems, one for /data, and the other for /sdcard. Several devices do just that. The downside is that if you put too much space in /data it is effectively wasted, while too little space in /data limits the number of apps that can be installed or how much data they can store "locally".
To solve that it is possible to store the "internal SD card" data in the same filesystem as /data. A new directory was created called /data/media, all the files in the "internal SD card" are actually just files in that folder. They both therefore have the same amount of free space and total space. [1] But Android insists that /sdcard must be a FAT32-compatible file system, while /data must not be. The solution is simple. Create a fake file system driver that pretends to be fat32, but simply reads from and writes to /data/media. That is what the transformer does.
The fake FAT32-compatible filesystem is actually mounted at /mnt/sdcard. Finally there is a symbolic link called /sdcard, which points to /mnt/sdcard. There is one logical reason for doing that, which is is to make it easy change /sdcard to point to an external card. Thanks ASUS for making our job simple.
How to use an external SD card as the primary SD card
Use [highlight]adb shell[/highlight] or the Terminal Emulator app from the market to open a shell.
If the prompt ends with a "#", skip to the next step. Otherwise type [highlight]su[/highlight] (followed by enter) to get a root shell.
Type [highlight]mount -o remount,rw /[/highlight] to ensure the root file system is mounted read/write.
Type [highlight]rm /sdcard[/highlight]
Type [highlight]ln -s /Removable/MicroSD /sdcard[/highlight]
reboot
That should do it. One last thing you may want to do is to to move the files from the "internal SD card" to the external one, or delete the files stored there to free up space. To do this you can use the built-in File Explorer. From the menu in the top right, uncheck the "hide system files" option. Now you can find the "internal SD card" at /mnt/sdcard. Delete the files or copy them to /sdcard as you see fit.
Footnote:
[1] Oddly this means that unless you do what I've outlined in this post, using the built-in apps2sd functionality simply wastes space.
Click to expand...
Click to collapse
Woow!!!!
So if I wipe all and start from the beginning and before install any app I'll made this operation I will have ~16gb internal memory???
It's possible to make a zip to flash after the rom??
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jsmith45 said:
The answer to your basic question (can I make the external micro-SD card the main SD card is): yes, if and only if you are rooted.
Before I explain how, let me explain how the "internal SD card" works on the Transformer. (If you just want to know what to do, you can skip this section).
How the "internal SD card" works on the EEE Pad Transformer
Normally on Android, /data and /sdcard point to two separate file systems, one internal, and the other external. However on devices with an internal "SD card" this changes.
The simplest way to have an internal "SD card" is to simply partition the storage into two file systems, one for /data, and the other for /sdcard. Several devices do just that. The downside is that if you put too much space in /data it is effectively wasted, while too little space in /data limits the number of apps that can be installed or how much data they can store "locally".
To solve that it is possible to store the "internal SD card" data in the same filesystem as /data. A new directory was created called /data/media, all the files in the "internal SD card" are actually just files in that folder. They both therefore have the same amount of free space and total space. [1] But Android insists that /sdcard must be a FAT32-compatible file system, while /data must not be. The solution is simple. Create a fake file system driver that pretends to be fat32, but simply reads from and writes to /data/media. That is what the transformer does.
The fake FAT32-compatible filesystem is actually mounted at /mnt/sdcard. Finally there is a symbolic link called /sdcard, which points to /mnt/sdcard. There is one logical reason for doing that, which is is to make it easy change /sdcard to point to an external card. Thanks ASUS for making our job simple.
How to use an external SD card as the primary SD card
Use [highlight]adb shell[/highlight] or the Terminal Emulator app from the market to open a shell.
If the prompt ends with a "#", skip to the next step. Otherwise type [highlight]su[/highlight] (followed by enter) to get a root shell.
Type [highlight]mount -o remount,rw /[/highlight] to ensure the root file system is mounted read/write.
Type [highlight]rm /sdcard[/highlight]
Type [highlight]ln -s /Removable/MicroSD /sdcard[/highlight]
reboot
That should do it. One last thing you may want to do is to to move the files from the "internal SD card" to the external one, or delete the files stored there to free up space. To do this you can use the built-in File Explorer. From the menu in the top right, uncheck the "hide system files" option. Now you can find the "internal SD card" at /mnt/sdcard. Delete the files or copy them to /sdcard as you see fit.
Footnote:
[1] Oddly this means that unless you do what I've outlined in this post, using the built-in apps2sd functionality simply wastes space.
Click to expand...
Click to collapse
Thanks for details, very nice and easy to understand. I do have a couple follow-up questions though.
- First to set the stage: I have the 16GB version of the TF, and right now have a 16GB external microsd installed. Rooted with stock ROM at present.
- Are there any issues or reasons why someone should not do this? Would the only reason for doing this be low internal memory?
- Your final footnote about apps2sd. Wasn't completely clear on this. Are you saying, that if I want to use apps2sd, I should do what you outlined?
- Essentially just want to determine if it is best to do this or not. I have a NookColor that is rooted and have used it fine for a year now, and have placed most apps/data on the external microsd, so am familiar with having that way, but am unsure about the TF.
Thanks again (gave you a thanks!)
surfmly said:
- Are there any issues or reasons why someone should not do this? Would the only reason for doing this be low internal memory?
Click to expand...
Click to collapse
Another reason of doing it is avoid mixing sd content in the internal memory and making clearer that /sdcard is the external memory. But yes, the main reason would be wasting 16Gb for Android system... There shouldn't been any problems with this change if you follow the instructions. The TF and Android can handle it.
surfmly said:
- Your final footnote about apps2sd. Wasn't completely clear on this. Are you saying, that if I want to use apps2sd, I should do what you outlined?
Click to expand...
Click to collapse
If you use apps2sd, you link /data/app to /sdcard, but since /sdcard is part of the internal memory and its also linked to /data, you will be wasting more internal memory. If you do the changes sugested by jsmith45 and use apps2sd, since /sdcard will now be pointing to the real external sd card, you will be using the external card to store all your apps.
surfmly said:
- Essentially just want to determine if it is best to do this or not. I have a NookColor that is rooted and have used it fine for a year now, and have placed most apps/data on the external microsd, so am familiar with having that way, but am unsure about the TF.
Click to expand...
Click to collapse
If you use the TF with a little head and move the heavy games/apps to the sdcard, you shouldn't get out of space soon and won't need this kind of change.
AzureusPT said:
If you use the TF with a little head and move the heavy games/apps to the sdcard, you shouldn't get out of space soon and won't need this kind of change.
Click to expand...
Click to collapse
however, as was previously said, as the transformer has its "internal SD card" data in the same filesystem as /data, moving apps to sd is just shuffling them about in the same file tree, it doesnt actually move them to the real external sd card.
using this mod would achieve that- my only concern being that if that card fails then a lot of important data is lost.
i also wonder how well this mod would work using CWM??
bob dylan said:
however, as was previously said, as the transformer has its "internal SD card" data in the same filesystem as /data, moving apps to sd is just shuffling them about in the same file tree, it doesnt actually move them to the real external sd card.
Click to expand...
Click to collapse
lol, thats true. I typed without thought...
Still, you have around 10Gb of usable space in /data. The point on doing the trick of restoring /sdcard to external should be if you have enough apps to get to that size. Note that many apps that download aditional data, many times they save it on the real sd card.
What I ment to say about using it with head was that its wise to use the external card to save the big files (that could be movies, music, etc), and handle the internal with apps.
BTW... just came to me now... with simple apps it is possible to get to 10Gb? I'm not talking about Let's Golf instalation (+1Gb), just the weight of the apk itself...
thanks guys
I have followed the tutorial but my sdcard folder links to internal memory and not to removable/microsd.
Infact all resource of apps are stored in Internal SD and not in External SD as i want.
I have tried with adb and terminal emulator...is the same. My rom is Revolver 3.11...help
Edit: the problem is after the reboot! if i don't reboot the symbolic link is present....I think i have to create and automatic script for every reboot
Now i have fixed the problem but i think the solution is not very perfect.
Ok sdcard folder links to removable/microsd but...mnt/sdcard is linked to internal sdcard!!! So apps installs it self on mnt/sdcard/data and games such as Race of champions download the resources on mnt/sdcard too.
I think the best way is to change the link to mnt/sdcard also to removable/microsd...
Any advice?
mattiadj said:
I have followed the tutorial but my sdcard folder links to internal memory and not to removable/microsd.
Infact all resource of apps are stored in Internal SD and not in External SD as i want.
I have tried with adb and terminal emulator...is the same. My rom is Revolver 3.11...help
Edit: the problem is after the reboot! if i don't reboot the symbolic link is present....I think i have to create and automatic script for every reboot
Now i have fixed the problem but i think the solution is not very perfect.
Ok sdcard folder links to removable/microsd but...mnt/sdcard is linked to internal sdcard!!! So apps installs it self on mnt/sdcard/data and games such as Race of champions download the resources on mnt/sdcard too.
I think the best way is to change the link to mnt/sdcard also to removable/microsd...
Any advice?
Click to expand...
Click to collapse
Now that I got around to trying this I am seeing the same problem. I have tried twice and it doesn't appear the link works. My External MicroSD is not being linked to when opening /sdcard in file explorer. Testing by taking a picture to see where new photo resides... it ends up in both /sdcard and /mnt/sdcard and not in /Removable/MicroSD....
So you need to do anything else like have a freshly formated MicroSD with proper folder structure (i.e. same folders currently in the /mnt/sdcard folder)?
Thanks.
---------- Post added at 03:27 PM ---------- Previous post was at 03:23 PM ----------
jsmith45 said:
How to use an external SD card as the primary SD card
Use [highlight]adb shell[/highlight] or the Terminal Emulator app from the market to open a shell.
If the prompt ends with a "#", skip to the next step. Otherwise type [highlight]su[/highlight] (followed by enter) to get a root shell.
Type [highlight]mount -o remount,rw /[/highlight] to ensure the root file system is mounted read/write.
Type [highlight]rm /sdcard[/highlight]
Type [highlight]ln -s /Removable/MicroSD /sdcard[/highlight]
reboot
Click to expand...
Click to collapse
jsmith - this doesn't appear to be working for me. The link doesn't point to /Remvoable/MicroSD per the terminal client commands I run per above, it is still /mnt/sdcard.
Anyone getting this to work properly on TF101 (I am running rooted .21 via Nachoroot/Vipermod). Thanks.
---------- Post added at 03:44 PM ---------- Previous post was at 03:27 PM ----------
By the way, I confirm that the symbolic link is working without reboot.
Also, for something like storing photos from the camera (and video recorder) I don't see option in camera or gallery to change save path. It shows the path for saved photos as /mnt/sdcard/......
So even without rebooting, with symbolic link working (i.e. opening /sdcard does open my external SD card), the camera is saving photos on the internal SD (at /mnt/sdcard).
I was thinking that we would be able to make the external SD card used for these types of things. Many apps should be installed on internal (runs better many times, etc) but extra stuff like music, photos, videos, etc should use the external card. Looks like this mod wouldn't necessarily change that.
Also, I noticed that on my HTC Inc2, the external card is at /mnt/sdcard (or /sdcard). So if any app is setup to use /mnt/sdcard, it will use the external SD card. However on the TF, even with the mod in this thread, the app would use /mnt/sdcard which is the internal SD. Only if an app uses /sdcard as the path would it use the external SD and I am not sure if most apps use /mnt/sdcard or just /sdcard.
Thoughts on best next steps to get the external card to be used more/better are welcome
People let see my thread on dev section.... Probably I have found the solution!
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I would like to play with something like this too..
As i have wiped TB backup a few times by mistake when loading on new Rom..
As it backups to the internal not external.. thus I have to manually copy it back and forwards on each backup..
sent from yet another MikG HTC Evo
Is anyone else having problems getting full R/W access to ext SD cards? Tried freeing up some space and I'm unable to delete anything on my SD card? And without root I am unable to try the kk sd fix?
englishmale said:
Is anyone else having problems getting full R/W access to ext SD cards? Tried freeing up some space and I'm unable to delete anything on my SD card? And without root I am unable to try the kk sd fix?
Click to expand...
Click to collapse
You should follow the guide it shows . select the root directory of the external sd.first time i pasted something to external sd with es xplorer it showed me the guide to take permission
I pressed the dots and selected show external sd and then selected the root directory of external sd.after that i could paste successfully
I'm having problems deleting files from my ext SD card, I cannot delete anything thing that is on the SD card.
Edit, just tried what you said with es explore and it worked, looks like I can't use dual file manager with this update
even if you Downdrade to 5.0.1 like i did you will face the same Problem , to fix this you have to give every app want access external SD root access and the problem that you Can not do that for apps that don't ask for root like torrents apps
I'm having a big issue getting the Android File Manager to grant permissions to write to the SDcard for 3rd party apps. In order to grant permission. One must select the external storage. Doing so will enable to app to modify the contents of that storage. However, my phone does not detect the external storage as seen below ..
(Check attached file)
My situation : I have TTorrent's download directory to my MicroSd -- so as to not waste internal storage. I downloaded a .rar file and it saved to the sd card. I want unpack that file, but I must grant ES File Manager permission to do so. It prompts me of what I need to do. I have the 'Show SD Card' toggled on, and yet my external storage doesn't show.
I have formatted my card using Android's format system.
I have formatted using Windows in both NFTS (Wasn't supported) and exFat.
I have tried mounting and unmounting and restarting the phone.
Yet to no avail ...
This is not an issue with ES File Manager, as I have used QuickPic to attempt to delete pictures from the MicroSD, It asks for permission, and again I cant grant it, because external storage doesn't show even though it is mounted.
What do I do ?
Update:
Apologies, there was another thread on this topic. I got it to work thanks to this thread ! >> http://forum.xda-developers.com/showthread.php?t=1773735
SDcard just needs to be formatted to exFAT and the external storage will show for 3rd party apps. At the unfortunate sacrifice of 4Gb file limit sizes.
http://forum.xda-developers.com/showpost.php?p=61081028&postcount=16
You mean it needs to be formatted to fat32 correct? That was the solution posted here in the alcatel forums, and it is what you're linking to in your post.. just don't want any newbies getting confused