Develop Bugs

SD Card as EXT?

Ok, so I've searched around and haven't really found an answer to my question, sorry if it's been answered before.
I'd like to format my ENTIRE SD card as an EXT3/4 filesystem, and was wondering if it would register as a normal SD card under Android, or will it be used a "system partition"? Would i be able to transfer files freely using a file explorer and would apps using the SD card (not apps on the SD card) for data run properly. I'd like to have a different file system used as FAT32 is a little ancient, and EXT is much better. I'm running Ubuntu as one of my OS, so mounting it on my PC wouldn't be a problem.
Thanks.

http://forum.xda-developers.com/showthread.php?t=1123833
Post 2
It would still be seen as an external SD card whatever file system you format it as.

Thanks. Although, i was reading through that thread and it says that the SD card will be reformated to VFAT on reboot. Is this true for the DHD too?

Possibly. I wouldnt know to be honest. Might aswell wait until somebody who knows about this can answer.

[Q]Viewing internal memory and external microSD on AOKP/CM9

Whenever I use a TW based ROM, I am able to use the file explorer to view both directories. Upon opening file explorer, it would default to the directory for internal storage. A folder in this directory labeled external_sd would then lead to the directory for the external SD card as advertised.
I realize however that CM9 and AOKP rename internal sd to emmc and external to sd card. The issue is, when using a file browser such as estrongs, the root directory defaults to sd card (aka the external storage) and it is impossible find the emmc. When downloading zips from the browser, the files are automatically saved to the emmc (internal) under the download folder, but on CM9/AOKP I can't figure out how to move files from emmc to sd card because I set TWRP to look at external only. Help?
Sent from my SGH-T989 using xda app-developers app

If you enable root explorer in the settings of esfile explorer (free app) u can go to the internal like on tw roms
Sent from my SGH-T989 using XDA

Try Astro File Manager, it comes up for me just fine.

I don't understand
Hello everyone.
I'm really sorry if I am repeating some other thread or if I am asking questions at the wrong forum. If so, please point me to the right direction.
I searched a lot on the internet about my issue but I can't find any solution for it.
I have a Moto Razr XT910 GSM and just installed AOKP based on Android 4.2.2.
I followed the instructions I found over the internet. They are the same, almost everywhere. So it worked just fine.
I wiped out delvik, cache and internal storage, then created a slot-2 partition with 1GB, where I flashed the ROM. It booted perfectly, and everything was working just fine until I started receiving an error message when I tried to install apps from Google Play. It said I had no space left on my internal storage.
The device I have comes with 8GB internal sdcard. I use my 32GB external sdcard to store music and it was not mounted when I flashed the ROM.
Now, when I go to system settings / storage, I can see I have two entries of internal storage: one with 0,98 GB of space, 150 MB available; and another with 8GB, 5,89GB available, which I can't access and neither can the OS. All the apps are being installed on the 0,98GB internal storage.
When I connect to my PC, it shows two mass storages: one, the external sdcard with 32GB; and the other, the internal sdcard with 8GB, but the Android OS does not recognize almost 6GB of it.
It is not an excess of files or trash, or rest of old OS files, nor anything like that. And all of the sudden I have this icon telling me my "storage space is running out". How can it be if I still have Almost 6GB of free memory? I don't understand,
Can anyone explain to me what is happening? Is there anything I can do to solve this problem?
Thank you very much.
--
Edit:
When I mounted my external sdcard, the OS started to install the app files on it, and not on my internal sdcard.
Also, my root explorer shows something wrong with the sdcard, and sdcard-ext. The files inside the sdcard folder are those from my external sdcard, and vice-versa.
Maybe that is the problem, but I am don't know how to solve it.

[Q] Formatting Fat32 64gb microSDHC card to exFAT Inquiry

I have a SanDisk 64gb card which is formatted Fat32.
I've been running it without issue for a few months.
45gb is being used.
I wanted to transfer the files to my pc, and have a few questions/comments:
- after transferring my files I want to format to exFAT
- will my files that were on my Fat32 card be able to be transferred to my exFAT card, as there are a couple of Nandroid, ROM downloads, pics, etc. that I want to transfer back.
- after transferring files to my pc, I was going to place the card back into my S4 and format card from the device. From what I've read, the device will format the card to exFAT. Would this be correct?
There are a couple of reasons I'd like to format the card:
- I want to transfer files to pc, and have some more space on the card, and figured I'd format to exFAT so as not to have file size limitations, although I've yet to dl any 4gb files.
- I'm taking a preemptive strike to avoid possible card issues which may arise in the future. I thought transferring many of the 45gb of files on the card, and re-formatting the card may assist with this, or is this not necessarily true?
If formatting the card and emptying files doesn't reduce the possibility of borking the card in the future, I want to transfer files anyway, in addition to having the card in exFAT unless there is a downside to this format.
Tia......

I recommend keeping it at Fat32. The phone won't read ExFat.
Sent from Spaceball One.

Biker1 said:
I have a SanDisk 64gb card which is formatted Fat32.
I've been running it without issue for a few months.
45gb is being used.
I wanted to transfer the files to my pc, and have a few questions/comments:
- after transferring my files I want to format to exFAT
- will my files that were on my Fat32 card be able to be transferred to my exFAT card, as there are a couple of Nandroid, ROM downloads, pics, etc. that I want to transfer back.
- after transferring files to my pc, I was going to place the card back into my S4 and format card from the device. From what I've read, the device will format the card to exFAT. Would this be correct?
There are a couple of reasons I'd like to format the card:
- I want to transfer files to pc, and have some more space on the card, and figured I'd format to exFAT so as not to have file size limitations, although I've yet to dl any 4gb files.
- I'm taking a preemptive strike to avoid possible card issues which may arise in the future. I thought transferring many of the 45gb of files on the card, and re-formatting the card may assist with this, or is this not necessarily true?
If formatting the card and emptying files doesn't reduce the possibility of borking the card in the future, I want to transfer files anyway, in addition to having the card in exFAT unless there is a downside to this format.
Tia......
Click to expand...
Click to collapse
Shouldn't be a problems with what you're wanting to do.
-Copy sd card contents to PC
-Reformat and copy content back
-Make sure the recovery you're using can read exFAT (both TWRP and Philz CWM can read exFAT)
-Also be sure the kernel support exFAT or your phone might not boot up.
-There's pros and cons to each format but for regular user like myself it's not something I really worry about
blackknightavalon said:
I recommend keeping it at Fat32. The phone won't read ExFat.
Sent from Spaceball One.
Click to expand...
Click to collapse
The phone out of the box should read exFAT. It's when using different kernels that does not support exFAT it will not read.

baseballfanz said:
Should be a problems with what you're wanting to do.
-Copy sd card contents to PC
-Reformat and copy content back
-Make sure the recovery you're using can read exFAT (both TWRP and Philz CWM can read exFAT)
-Also be sure the kernel support exFAT or your phone might not boot up.
-There's pros and cons to each format but for regular user like myself it's not something I really worry about
The phone out of the box should read exFAT. It's when using different kernels that does not support exFAT it will not read.
Click to expand...
Click to collapse
Last night, I:
- copied 45gb data from card to pc - 50 minutes
- I've read about the kernels and the format to be used
- decided to keep card @ Fat32 : "If it Ain't Broke, Don't Fix It" applies here
- I haven't deleted files yet, or formatted
I formatted the card once before using my pc and www.easeus.com
I found this also:
http://forum.xda-developers.com/showthread.php?t=1773735&page=2
But most likely will use the easeus method, which is also in that thread.
I'll take another look, but does formatting the card using the S4 format to exFAT or Fat32?
I thought it was exFAT, buy info or mis info is all over the place.

I've not used the on phone format feature yet.
To go from exFat to FAT32 I use Minitool partition
http://download.cnet.com/MiniTool-Partition-Wizard-Home-Edition/3000-2094_4-10962200.html
To go from FAT32 to exFat I just used the Windows PC formatting feature.

baseballfanz said:
I've not used the on phone format feature yet.
To go from exFat to FAT32 I use Minitool partition
http://download.cnet.com/MiniTool-Partition-Wizard-Home-Edition/3000-2094_4-10962200.html
To go from FAT32 to exFat I just used the Windows PC formatting feature.
Click to expand...
Click to collapse
I'm on Fat32 already.
Is re-formatting an exercise in futility?
I was thinking to re-format because:
- after months of making Nandroids without issue, I had trouble recently Booting after backing up to extSdCard. I'd freeze on Samsung splash after multiple backup attempts.
I backed up to internal and booted fine. I dont know if this was coincidence, but figured I'd format for good measure. Otherwise, the extSdCard is running without issue.
Not sure there even is an issue.
I actually had a successful Nandroid to extSdCard card afterwards.
Just thinking out loud.
I'll probably just empty the card of some gb, and not format.

Biker1 said:
I'm on Fat32 already.
Is re-formatting an exercise in futility?
I was thinking to re-format because:
- after months of making Nandroids without issue, I had trouble recently Booting after backing up to extSdCard. I'd freeze on Samsung splash after multiple backup attempts.
I backed up to internal and booted fine. I dont know if this was coincidence, but figured I'd format for good measure. Otherwise, the extSdCard is running without issue.
Not sure there even is an issue.
I actually had a successful Nandroid to extSdCard card afterwards.
Just thinking out loud.
I'll probably just empty the card of some gb, and not format.
Click to expand...
Click to collapse
Formatting is a breeze. I've gone from exFAT to FAT32 and vice versa without a problems. Both was achieved in minutes, only time consuming is copying contents to and from sd card.
I was also having troubles with TWRP not booting past Samsung splash screen and I was on exFAT at the time.
Like you have mentioned I only got that problems since flashing with Aroma and never before that.
I've since switch over to Philz CWM and everything is OK (except nandroid backup take ages:laugh

blackknightavalon said:
I recommend keeping it at Fat32. The phone won't read ExFat.
Sent from Spaceball One.
Click to expand...
Click to collapse
I'm sorry but this is an incorrect statement. Samsung has supported exFat on 64GB cards only on both the Galaxy S3 and S4. Their initial implementation was buggy but they did work the kinks out.
Here are the disadvantages to using FAT32 on 64GB cards:
Fat32 only supports files up to 4GB - 1 (technically 4,294,967,295 bytes) in length. A high definition video today takes up to 4GB per hour of video (even more sometimes). This limits the size of movies you can store.
The maximum size of a directory (actual number of bytes of the directory itself, not number of files) is limited to 65,5355 bytes. Considering that each directory entry takes up 32 bytes that limits the number of files in a single directory to 2047 entries if long file names are not used. With files names longer than 8 characters that number gets reduced significantly. That is a problem for apps like Titanium backup that use lots of files or if you have a lot of MP3s.
I have been using exFat on my 64GTB SDXC memory cards on both my S3 and my s4 without any problems after Samsung fixed the initial bugs.
You should not encounter any problems copying files from your FAT32 card to your PC and then copying them back to an exFat card. I have done that several times.

@ChitownWingMan
Some good info there re capacities and such.
Earlier I decided to keep the format at Fat32, and didn't re format
If it ain't broke, don't fix it, as they say.
I also understand that exFat is Kernel sensitive, so I'd be limited to wha I can flash
Owe ya a Thanks. My daily 8 limit ran out

Biker1 said:
@ChitownWingMan
Some good info there re capacities and such.
Earlier I decided to keep the format at Fat32, and didn't re format
If it ain't broke, don't fix it, as they say.
I also understand that exFat is Kernel sensitive, so I'd be limited to wha I can flash
Owe ya a Thanks. My daily 8 limit ran out
Click to expand...
Click to collapse
Your welcome. I was one of the first people to report the exFat bug in the original release of the S3 and I worked with Sandisk and Samsung to identify it as a bug.
I actually tried to run NTFS for a while but I couldn't find a decent implementation for Android and EXT2, EXT3 or EXT4 have little or no support on Windows.

ChitownWingMan said:
I'm sorry but this is an incorrect statement. Samsung has supported exFat on 64GB cards only on both the Galaxy S3 and S4. Their initial implementation was buggy but they did work the kinks out.
Here are the disadvantages to using FAT32 on 64GB cards:
Fat32 only supports files up to 4GB - 1 (technically 4,294,967,295 bytes) in length. A high definition video today takes up to 4GB per hour of video (even more sometimes). This limits the size of movies you can store.
The maximum size of a directory (actual number of bytes of the directory itself, not number of files) is limited to 65,5355 bytes. Considering that each directory entry takes up 32 bytes that limits the number of files in a single directory to 2047 entries if long file names are not used. With files names longer than 8 characters that number gets reduced significantly. That is a problem for apps like Titanium backup that use lots of files or if you have a lot of MP3s.
I have been using exFat on my 64GTB SDXC memory cards on both my S3 and my s4 without any problems after Samsung fixed the initial bugs.
You should not encounter any problems copying files from your FAT32 card to your PC and then copying them back to an exFat card. I have done that several times.
Click to expand...
Click to collapse
Ahh, this again. Since Ubuntu doesn't read exFat, you'll understand my reluctance to reformat.

blackknightavalon said:
Ahh, this again. Since Ubuntu doesn't read exFat, you'll understand my reluctance to reformat.
Click to expand...
Click to collapse
I just googled "ubuntu exfat" and came up with more than a dozen websites with instructions on how to install and use exfat on Ubuntu.
Good luck...

I have done exactly what the OP mentioned - with 32 GB SD card. I copied all files to my computer, formatted the SD card from its original FAT-32 to exFAT, using an SD-card adapter. With quick format that only takes 2 seconds. Then copied all files back to the card, stuck it in my Galaxy S4 (Build VRUEMJ7, if that's important). And it works fine - all the files are readable on the phone - music, video, .doc, .xls, .ppt. , mp3 , No problems.

TWRP recovery has support for ExFAT since v2.4.0.0.

LG G3 D851 external SD Card problems

I have a freshly formatted 32 gb micro SD card (fat32) that I put in my Freshly rooted phone using Bliss Pop Rom. When I boot up my phone, go to storage and mount the micro SD, it automatically says that it now has 15bgb on it. Using ES file explorer I examine the contents of the card and there is nothing on it but yet it reads as 15gb left. What's worse is that when I try to copy or move a file to it, a message saying not enough space please free up space to proceed. I Googled the crap out of this issue. No luck. Please help. I use a lot of storage and the SD card is important to me.

Try on stock rom. If it works then stay on stock. Can't stress this enough. CM is to play around with but not as a daily driver. CM is garbage

vance74 said:
I have a freshly formatted 32 gb micro SD card (fat32) that I put in my Freshly rooted phone using Bliss Pop Rom. When I boot up my phone, go to storage and mount the micro SD, it automatically says that it now has 15bgb on it. Using ES file explorer I examine the contents of the card and there is nothing on it but yet it reads as 15gb left. What's worse is that when I try to copy or move a file to it, a message saying not enough space please free up space to proceed. I Googled the crap out of this issue. No luck. Please help. I use a lot of storage and the SD card is important to me.
Click to expand...
Click to collapse
Try installing and running SDFix from Google Play Store. Make sure you have a nandroid backup before you do >anything< to your device.

ivanabq said:
Try installing and running SDFix from Google Play Store. Make sure you have a nandroid backup before you do >anything< to your device.
Click to expand...
Click to collapse
Just to follow up. . I formatted the card on a PC using a an SD card adapter. After that I had the problem. I researched it and apparently that can mess up, corrupt micro SD cards. So I popped the same micro SD card in my Galaxy s5 and formatted it and the tried it in my LG G3 and it mounted and now works great.

Your microSD card isn't formatted properly
vance74 said:
I have a freshly formatted 32 gb micro SD card (fat32) that I put in my Freshly rooted phone using Bliss Pop Rom. When I boot up my phone, go to storage and mount the micro SD, it automatically says that it now has 15bgb on it. Using ES file explorer I examine the contents of the card and there is nothing on it but yet it reads as 15gb left. What's worse is that when I try to copy or move a file to it, a message saying not enough space please free up space to proceed. I Googled the crap out of this issue. No luck. Please help. I use a lot of storage and the SD card is important to me.
Click to expand...
Click to collapse
SD cards and microSD cards should not be formatted by the Windows, Apple, or other default program. If you're running Windows, download and install SDFormatter. SD cards have special hidden files that are deleted by the Windows regular formatter. SDFormatter handles the removable media properly.
If you are going to use the SD or mSD card in a particular device, you should >always< format the card in that device before using it.

Yes, what the previous poster said... I wish you could have asked before you did it. Windows is bad at formatting for anything other than NTFS and so is Mac. If you have to format at all, use TWRP. But me personally I recommend to never ever format. I have always managed to turn them into RAW due to multiple formatting because like ivanabq said, Windows just deleted those files. These files are used by Android to read where everything is and if they are gone, it doesn't know how to read the card anymore. Good luck. Hope you get the space back.
Also could you tell us the brand of your microSD? Sometimes the knockoff brands will advertise more space and once you format it, it reveals that it is far less. You might be able to get a full refund knockoff or not.

exFat issue

Do you anybody have problem with exFat SD card like that?
Im using exFat for my 32gb SD, my gallery not refreshing for new downloaded videos or images. So i cant see them. Even sometimes not helping restarting phone.
But when i take photo to SD i can see that image in my gallery instantly.
Was Fat32 everytings works great.
Using H815 6.0 Stock v20g eur xx.

FAT32 is the recommended file system for SD and SDHC cards ...
mythbrk said:
Do you anybody have problem with exFat SD card like that?
Im using exFat for my 32gb SD, my gallery not refreshing for new downloaded videos or images. So i cant see them. Even sometimes not helping restarting phone.
But when i take photo to SD i can see that image in my gallery instantly.
Was Fat32 everytings works great.
Using H815 6.0 Stock v20g eur xx.
Click to expand...
Click to collapse
FAT32 is the recommended file system for SD and SDHC cards ... a 32gb SD card is an SDHC card.
exFAT is primarily for SDXC cards ... (i.e., greater than 32 GB).
Both FAT32 and exFAT are Microsoft designs.
I suspect your issue is directly related to LINUX and the inherent formatting of your internal storage where I presume you are downloading your videos/images to before moving them to your SD card.
If your videos/images individually are not exceeding 4 GB there is no need to go to exFAT on an SDHC card but because the LG G4 supports cards greater than 32gb, i.e., supports exFAT, you will be able to see them when moved to your card.
S.

sdembiske said:
FAT32 is the recommended file system for SD and SDHC cards ... a 32gb SD card is an SDHC card.
exFAT is primarily for SDXC cards ... (i.e., greater than 32 GB).
Both FAT32 and exFAT are Microsoft designs.
I suspect your issue is directly related to LINUX and the inherent formatting of your internal storage where I presume you are downloading your videos/images to before moving them to your SD card.
If your videos/images individually are not exceeding 4 GB there is no need to go to exFAT on an SDHC card but because the LG G4 supports cards greater than 32gb, i.e., supports exFAT, you will be able to see them when moved to your card.
S.
Click to expand...
Click to collapse
Yes i know. thats why i formatted to exFat, sometimes i need 4gb+ files.
I just directly download to SD card with phone.
Im thinking its about LG's software. deleting files is so slow (2gb files 10sec+) and not refreshing in gallery.
I was readed somewhere fat32 have (log daily feature) or something like that for changed files and accuracy files idk properly but exFat not have this maybe its about that.

Before coming to that conclusion ...
mythbrk said:
Yes i know. thats why i formatted to exFat, sometimes i need 4gb+ files.
I just directly download to SD card with phone.
Im thinking its about LG's software. deleting files is so slow (2gb files 10sec+) and not refreshing in gallery.
I was readed somewhere fat32 have (log daily feature) or something like that for changed files and accuracy files idk properly but exFat not have this maybe its about that.
Click to expand...
Click to collapse
Before coming to that conclusion ... i.e., thinking it's about LG's software, you would have to test out an SDXC card and see if you're having the same issue. Then you might be able to make a case to LG if everything else is set-up properly.
When you state you are downloading to your SD card directly with your phone, how exactly did you set it up ... ?
S.

sdembiske said:
Before coming to that conclusion ... i.e., thinking it's about LG's software, you would have to test out an SDXC card and see if you're having the same issue. Then you might be able to make a case to LG if everything else is set-up properly.
When you state you are downloading to your SD card directly with your phone, how exactly did you set it up ... ?
S.
Click to expand...
Click to collapse
Im using opera and i can set download location many apps can do this.
Oh. You right i thought SDHC can handle exFat but have problem with compatibility. But you can use anyway if you need.

You're not using adaptable storage ...
mythbrk said:
Im using opera and i can set download location many apps can do this.
Oh. You right i thought SDHC can handle exFat but have problem with compatibility. But you can use anyway if you need.
Click to expand...
Click to collapse
You're not using adoptable storage ... for the set-up of your sd card are you with android 6.0, Marshmallow? Needs to be set to portable I believe ... irrespective of what you've set in Opera.
S.

sdembiske said:
You're not using adoptable storage ... for the set-up of your sd card are you with android 6.0, Marshmallow? Needs to be set to portable I believe ... irrespective of what you've set in Opera.
S.
Click to expand...
Click to collapse
I dont understand what you exactly mean.
I just download directly to SD card external storage. Not internal phone's own
im not using sd card as adaptable storage.
And yes 6.0 Marshmallow.

Borrow or purchase an ...
mythbrk said:
I dont understand what you exactly mean.
I just download directly to SD card external storage. Not internal phone's own
im not using sd card as adaptable storage.
And yes 6.0 Marshmallow.
Click to expand...
Click to collapse
Then borrow or purchase an ... SDXC card and see if the issue recurs when formatted as exFAT.
You could try re-formatting your card with a different program and see if it helps but It may be your phone is having trouble reconciling a 32gb card to exFAT.
S.
.