Develop Bugs

Changing the file system of /data

hello everybody
I didn't find the answer to my question (I used the search tool) so forgive me if it has allready been answered:
is it possible, in order to improve performance, to format /data which is actually using the samsung rfs into ext4 so that the hack of formating the external sd card and moving /data on it will be unnecessary?
thank you by advance.

As of now we have no way at all to modify what file system is on the internal storage devices. Besides I do not believe that the we evildoer in this case is a poor fs.
Sent from my GT-I9000 using XDA App

gontran said:
hello everybody
I didn't find the answer to my question (I used the search tool) so forgive me if it has allready been answered:
is it possible, in order to improve performance, to format /data which is actually using the samsung rfs into ext4 so that the hack of formating the external sd card and moving /data on it will be unnecessary?
thank you by advance.
Click to expand...
Click to collapse
'
I've just been reading this about RFS, you might find it interesting:
http://forum.samdroid.net/f16/what-we-know-about-samsung-rfs-30/

Darkstriker said:
As of now we have no way at all to modify what file system is on the internal storage devices. Besides I do not believe that the we evildoer in this case is a poor fs.
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
Is there no way to umount /data and then format it into ext4?
Rfs seems to have pretty poor performances compared to ext4 but I'm not an expert so maybe is it useless.

Did you not read what you quoted from me there?
We do NOT have a way to modify the filesystem on the internal storage. We can unmount it but we CANNOT format it!

Darkstriker said:
Did you not read what you quoted from me there?
We do NOT have a way to modify the filesystem on the internal storage. We can unmount it but we CANNOT format it!
Click to expand...
Click to collapse
A little less attitude please!
He asked a perfectly valid question, all that is required are the file system tools format, partition and check the partition and an understanding of the init.rc files that mount the partition on boot.

[Q] mount usb on recovery ?

hi,
i installed recovery with help of rom manager but i saw that one thing is not working => the usb mount feature...
is this the case for every nexus users, or did i done something wrong ?

That's the case for me too, also in CWM you can't mount usb either. It's the norm dude

There is no mount USB in recovery because e nexus doesn't support UMS
Sent from my Galaxy Nexus using xda premium

isn't UMS something that could be enabled in the kernel for example ?

alain57 said:
isn't UMS something that could be enabled in the kernel for example ?
Click to expand...
Click to collapse
The problem with the Galaxy Nexus, unlike the Nexus S, is that there is no seperate /sdcard partition. The /sdcard folder is symlinked to /data/media and the /data partition is ext4, so Windows can't natively read it.

efrant said:
The problem with the Galaxy Nexus, unlike the Nexus S, is that there is no seperate /sdcard partition. The /sdcard folder is symlinked to /data/media and the /data partition is ext4, so Windows can't natively read it.
Click to expand...
Click to collapse
is it possible to be read on Linux ?

I personally wouldn't trust with those... Even MTP gives me a headache from time to time... ADB pull/push is works and works flawlessly. It also works on both TWRP and CWM.

qtwrk said:
is it possible to be read on Linux ?
Click to expand...
Click to collapse
probably. libmtp is improving. although if you use linux, it would be wiser to use adb as suggested. way easier too.
Sent from my i9250

[Q] [Help] Android & Windows don't pick up sd

So today instead of formatting to fat32 i accidently formatted to ntfs and yes iv'e searched all over but all the apps say i need "modprobe fuse" and the incredible doesn't seem to have it :/
I really don't wanna move to my iphone so any help would be nice, thanks in advance

Danielombasa612 said:
So today instead of formatting to fat32 i accidently formatted to ntfs and yes iv'e searched all over but all the apps say i need "modprobe fuse" and the incredible doesn't seem to have it :/
I really don't wanna move to my iphone so any help would be nice, thanks in advance
Click to expand...
Click to collapse
Cant you just take out the sd and use a card reader and a pc to format it back to fat32?

cmlusco said:
Cant you just take out the sd and use a card reader and a pc to format it back to fat32?
Click to expand...
Click to collapse
the problem is i don't have one, oh well i think it's time to retire this phone :/
thanks cmlusco

Danielombasa612 said:
the problem is i don't have one, oh well i think it's time to retire this phone :/
thanks cmlusco
Click to expand...
Click to collapse
Well its up to you. You can get one of those adapters at walmart for like $3.

Danielombasa612 said:
the problem is i don't have one, oh well i think it's time to retire this phone :/
thanks cmlusco
Click to expand...
Click to collapse
Or learn some adb and format in recovery. I hate to see a phone given up on due to an issue reading a sdcard.
Also android has a format option in the storage menu. Have you tried that?
Sent from my Galaxy Nexus using Tapatalk 2

tiny4579 said:
Or learn some adb and format in recovery. I hate to see a phone given up on due to an issue reading a sdcard.
Also android has a format option in the storage menu. Have you tried that?
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
i booted to cwm, couldn't format because the phone doesn't recognize it.
tired it from cm10.1 storage, no luck so idk anymore.

Try this:
1. Reboot into recovery.
2. Connect phone to PC (must have working adb)
3. Start->Run->cmd
4. Type adb shell where you normally would run adb.
5. mkdosfs -F 32 /dev/block/mmcblk1p1
Or simpler, did you try wiping external storage (in TWRP recovery) or a similar sdcard wipe in CWM?

tiny4579 said:
Try this:
1. Reboot into recovery.
2. Connect phone to PC (must have working adb)
3. Start->Run->cmd
4. Type adb shell where you normally would run adb.
5. mkdosfs -F 32 /dev/block/mmcblk1p1
Or simpler, did you try wiping external storage (in TWRP recovery) or a similar sdcard wipe in CWM?
Click to expand...
Click to collapse
adb keeps giving me "error device not found"
& i had cwm installed because i had to flash an unsigned zip T.T
ty anyways for your help guys!
p.s i've always loved your ROM's & kernels keep it up dude ^^

Danielombasa612 said:
adb keeps giving me "error device not found"
& i had cwm installed because i had to flash an unsigned zip T.T
ty anyways for your help guys!
p.s i've always loved your ROM's & kernels keep it up dude ^^
Click to expand...
Click to collapse
Do the commands in a terminal emulator app.
su
mkdosfs -F 32 /dev/block/mmcblk1p1

cmlusco said:
Do the commands in a terminal emulator app.
su
mkdosfs -F 32 /dev/block/mmcblk1p1
Click to expand...
Click to collapse
mkdosfs -F 32 /dev/block/mmcblk1p1: not found
thats what it says

Help fixing Droid Inc's emmc after NTFS format?

Guess what guys, I thought it would be a smart idea to format my Dincs internal storage to NTFS...I needed to transfer a big file and didn't have anything on it so it seemed like a good idea. Yes I didn't have a flash drive. Anyway, it didn't turn out good. I'm not really worried about being able to use it again (I have a 32gb sd card) but I don't like broken things. I'd like to fix it, I've already done some homework but have got no results. I am currently running this for anyone interested. http://forum.xda-developers.com/showthread.php?t=2143575 Any ideas on how to get it to work again? Even my computer won't read it -___-

AdrianCO said:
Guess what guys, I thought it would be a smart idea to format my Dincs internal storage to NTFS...I needed to transfer a big file and didn't have anything on it so it seemed like a good idea. Yes I didn't have a flash drive. Anyway, it didn't turn out good. I'm not really worried about being able to use it again (I have a 32gb sd card) but I don't like broken things. I'd like to fix it, I've already done some homework but have got no results. I am currently running this for anyone interested. http://forum.xda-developers.com/showthread.php?t=2143575 Any ideas on how to get it to work again? Even my computer won't read it -___-
Click to expand...
Click to collapse
Format the internal SD with recovery?
Sent from my Galaxy Nexus using xda app-developers app

Do you have adb setup and working on your pc?
You need to be in recovery and then open an adb shell. Run the folowing hitting enter after each line.
Code:
parted /dev/block/mmcblk0p3
print
You will see a line starting with "Disk /dev/block/mmcblk0p3: ...MB"
What ever that size says at the end use in the following line.
Code:
mkpartfs fat32 0 ...MB

cmlusco said:
Do you have adb setup and working on your pc?
You need to be in recovery and then open an adb shell. Run the folowing hitting enter after each line.
Code:
parted /dev/block/mmcblk0p3
print
You will see a line starting with "Disk /dev/block/mmcblk0p3: ...MB"
What ever that size says at the end use in the following line.
Code:
mkpartfs fat32 0 ...MB
Click to expand...
Click to collapse
Sorry for the extremely late reply, I've been without internet for the longest time now. Anyways, as much I would've liked to fix it, I've upgraded my device. Thanks a lot for your comment though!:laugh:

[4.3] Can't mount external partition with Link2SD on rooted Xperia M

Hi all,
I have a sony Xperia M (C1905). Till some days ago I have the old android release with rooted access and link2sd. All worked good.
With the last 4.3 update I had some problems, since I'm not an expert android developer . However I managed to root my phone using the haresh311999 guide.
I have my phone rooted, checked also with Root checker. I've also SuperSu, BusyBox and Link2Sd app. I've enabled the debug mode and checked the MSC storage mode.
But in Link2sd I cannot mount my external partition in which I used to link all the bigger apps. I've an ext3 partition and before the 4.3 upgrade it worked good. Now If I try to rebuild the script I got an error:
Mounting script cannot be created (This string isn't the original one, since I'm not english).
"mount: Operation not supported on transport endpoint"
Click to expand...
Click to collapse
I've found in the forum that I should try this procedure but with adb I can't run adb mount or adb root:
adbd can't run as root in production builds
Click to expand...
Click to collapse
I've tried also with adb shell and su command, to mount system as r/w but till now I haven't succeded....
$ adb shell
$ su
# mount -o rw,remount /system
Click to expand...
Click to collapse
Any suggestion ?

You can try to set second partition with FAT32,,
My partition workin' perfect,,
Sent from my C1905 using XDA Premium 4 mobile app

Also my ext3 was working good.
I don't want to lose all the data in the partition...
If there are some fixes I prefer to try before format it... Now I just had an idea: I can try to do another partition with the minitool and try if there is only a filesystem problem...

must be ext4 on my working fine and fast

and i got bootloop :/

Root device clean partition and create new and mount script should be ok
Wysyłane z mojego C1905 za pomocą Tapatalk 2

orion_42 said:
Hi all,
I have a sony Xperia M (C1905). Till some days ago I have the old android release with rooted access and link2sd. All worked good.
With the last 4.3 update I had some problems, since I'm not an expert android developer . However I managed to root my phone using the haresh311999 guide.
I have my phone rooted, checked also with Root checker. I've also SuperSu, BusyBox and Link2Sd app. I've enabled the debug mode and checked the MSC storage mode.
But in Link2sd I cannot mount my external partition in which I used to link all the bigger apps. I've an ext3 partition and before the 4.3 upgrade it worked good. Now If I try to rebuild the script I got an error:
I've found in the forum that I should try this procedure but with adb I can't run adb mount or adb root:
I've tried also with adb shell and su command, to mount system as r/w but till now I haven't succeded....
Any suggestion ?
Click to expand...
Click to collapse
echo juned said:
You can try to set second partition with FAT32,,
My partition workin' perfect,,
Sent from my C1905 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
orion_42 said:
Also my ext3 was working good.
I don't want to lose all the data in the partition...
If there are some fixes I prefer to try before format it... Now I just had an idea: I can try to do another partition with the minitool and try if there is only a filesystem problem...
Click to expand...
Click to collapse
darekesp said:
must be ext4 on my working fine and fast
Click to expand...
Click to collapse
n00BXperia said:
and i got bootloop :/
Click to expand...
Click to collapse
darekesp said:
Root device clean partition and create new and mount script should be ok
Wysyłane z mojego C1905 za pomocą Tapatalk 2
Click to expand...
Click to collapse
Well, I am sure you must be using Link2Sd to mount games/applications on your Xperia.
Mind if I suggest that you can use FOLDER MOUNT
FOLDER MOUNT LINK
This is amazing little software which requires root but it doesnot do anything more than telling games where to find the OBB files.
In free version, you can mount upto 3 games where as in full version, you can use unlimited mounts!
Check it out and you wouldnot use Link2SD any more

orion_42 said:
Also my ext3 was working good.
I don't want to lose all the data in the partition...
If there are some fixes I prefer to try before format it....
Click to expand...
Click to collapse
Same problem on a different device... solution: in Link2SD, choose EXT4 (even if the 2rd partition is actually EXT2/3).
This worked for me, and I didn't lose any data in the EXT2 partition. No reformatting needed.

dangerzone said:
Same problem on a different device... solution: in Link2SD, choose EXT4 (even if the 2rd partition is actually EXT2/3).
This worked for me, and I didn't lose any data in the EXT2 partition. No reformatting needed.
Click to expand...
Click to collapse
Worked for me as well on Samsung Xcover2 GT-7710

br0ziliy said:
Worked for me as well on Samsung Xcover2 GT-7710
Click to expand...
Click to collapse
Had the same error, choose ext4 as the partition type and it created the script and asked me to reboot my phone just like it used to on all my other devices.

orion_42 said:
Also my ext3 was working good.
I don't want to lose all the data in the partition...
If there are some fixes I prefer to try before format it... Now I just had an idea: I can try to do another partition with the minitool and try if there is only a filesystem problem...
Click to expand...
Click to collapse
darekesp said:
must be ext4 on my working fine and fast
Click to expand...
Click to collapse
I couldn't believe that.
Will ext partitions work on our XM?
I had tried many times.
boot loop was the result :crying:
I had formatted all types of ext versions. no hope.
Now I am using Memory Swap (JB 4.3)
but still I want Link2SD to be worked.
I have Link2SD Pro App.
Will Link2SD work with swapping?
Now I have been using "nicky root" for rooting, since its a "full root" method.
I have a reserve of 5GB for second partition; not formatted.
Please guide me......

I have a LG L65, had the same problem, but could fix it
Hi, guys.
I have a LG L65 running Android 4.4.2 KitKat. I had the same problem. My phone was rooted (using towelroot), my SD Card was partitioned, but couldn't get the mount script. I tried what some of you said about creating an ext2 partition and choosing ext4 on Link2SD, and it worked.
Also, don't know if it matters or not, but I'll say it anyway; I was using FAT for my data partition, but switched to FAT32.

Great, ext4 did the trick. Thank you very much!

Sony E1 D2004 (4.4.2) fixed
dangerzone said:
Same problem on a different device... solution: in Link2SD, choose EXT4 (even if the 2rd partition is actually EXT2/3).
This worked for me, and I didn't lose any data in the EXT2 partition. No reformatting needed.
Click to expand...
Click to collapse
*******
Also worked on my Sony E1 D2004 (4.4.2). Thanx, dangerzone!:good:
Who'd have thunk that 4 means 2? !!!
Rob

dangerzone said:
Same problem on a different device... solution: in Link2SD, choose EXT4 (even if the 2rd partition is actually EXT2/3).
This worked for me, and I didn't lose any data in the EXT2 partition. No reformatting needed.
Click to expand...
Click to collapse
Thanks. Worked for me too..

Bootloop?
I did the ext4 option trick, but somehow now it just turns off suddenly after that and keeps looping at the boot until I remove the SD Card. Any tips?
PS: I also re-formatted the SD Card over to the ext4 format, and that didn't work either.

dangerzone said:
Same problem on a different device... solution: in Link2SD, choose EXT4 (even if the 2rd partition is actually EXT2/3).
This worked for me, and I didn't lose any data in the EXT2 partition. No reformatting needed.
Click to expand...
Click to collapse
Confirmed - 4 does in fact equal 2. Worked fine.

choosing ex4 partition is the solution
i choosed ex4 partition and the problem solved
thank you very much
LG L70
:laugh::laugh::laugh::good::good:

Not working for me in any way. I have the second partition formated ext3, and Link2Sd says the following for each format:
mount script cannot be created...
ext3
mount: operation not supported on transport end point
ext4
mount: invalid argument
ext2
mount: no such device
... ?... WTH is going on?
Sent from my LG-D855 using XDA Free mobile app

CNK80Q3MX said:
Not working for me in any way. I have the second partition formated ext3, and Link2Sd says the following for each format:
mount script cannot be created...
ext3
mount: operation not supported on transport end point
ext4
mount: invalid argument
ext2
mount: no such device
... ?... WTH is going on?
Sent from my LG-D855 using XDA Free mobile app
Click to expand...
Click to collapse
are your kernel support move app to sd feature?