How to Use EXT3 Filesystem For The SD-EXT Partition?? - General Questions and Answers

"Use EXT3 Filesystem For The SD-EXT Partition,To Avoid Any Errors While Backup" Thiz is the suggestion from developer. But I dont know how to do this
please help:
here original topic: http://forum.xda-developers.com/showthread.php?t=1859518

After you create a partition, it needs to be formatted to be usable. If you created the partition on your SD card by putting it in your computer, you have to format it separately. You use your preferred software to format, and you must specify how you want the new partition formatted.
If you create a partition on your SD card through your phone's recovery (i.e., CWM), it will automatically format it. I think CWM uses ext4 by default.

post-mortem said:
After you create a partition, it needs to be formatted to be usable. If you created the partition on your SD card by putting it in your computer, you have to format it separately. You use your preferred software to format, and you must specify how you want the new partition formatted.
If you create a partition on your SD card through your phone's recovery (i.e., CWM), it will automatically format it. I think CWM uses ext4 by default.
Click to expand...
Click to collapse
Does CWM support external SD card formated with ext3 or ext4? I considered exFAT and NTFS but none seems to be supported by CWM.

CWM can read partitions which have been formatted ext2/3/4 in your computer. I'm not aware about exFAT, and I highly doubt any recovery would recognize NTFS.

Related

SD Card EXT 3 Q.

When formatted with EXT3, can i simply drop anddrag stuff into /sdcard ie folders for music and stuffs??
Thanks.
When you partition your card its with a fat32 partition and and ext2/3/4 partition. your ext partition will be used by your linux android platform for a2sd+ feature and wont be accessible to you when you connect your device as a drive.
However the fat32 partition will be visible to you and you can put all your stuff on it normally as you do.
hope this helps.

[Q] 4ext vs 2nd partition on SD card

Hello,
I have secondary partition on my SD card with ext4 filesystem on it.
With help of Link2SD i can use this partition for installed apps.
So the question is, when i create a backup with 4EXT (currently installed) or CWM does it include links and actual files from the SD card?
Got also a ext and ext1 seems to be a strange mounting problem..
It works but s2e cannot find the ext patition..
orld said:
Hello,
I have secondary partition on my SD card with ext4 filesystem on it.
With help of Link2SD i can use this partition for installed apps.
So the question is, when i create a backup with 4EXT (currently installed) or CWM does it include links and actual files from the SD card?
Click to expand...
Click to collapse
Hi,
4EXT nandroid backup takes a complete snapshot of your phone system,settings,data,and apps.
It does NOT make a backup of your sd card.
So, I would think that if you restored the backup,and you had not moved the apps in your ext4 partition,then they would match up again.
Why are you using an ext4 partition,anyway?
Isn't 1 GB of space on the phone enough for you?
software logic
well,
in linux filesystem, and in windows nowdays too, any storage can be mounted anywere, so if backup software differentiate external storage vs internal storage, it probably should follow symlinks and backup application from extended filesystem as well.
it could be a feature request

[Q] Ext2 partion mounted then after linking apps it can not be mounted!

I have Xperia Active with JellyVanilla 2 rev0 [Unlocked BL] installed
Yesterday I partitioned a second partition on my sd card so as I can link apps to sd, created 1027 MB ex2 primary partitoin!
Then, It was mounted, I linked the apps and everything was just GREAT!!!
Then, I slept for about 12 hours and when i'm awake i found the apps I linked yesterday are not shown.
Link2sd couldn't mount the partion, although it could see it!!
It gives me this message:
"Mount script cannot be created.
mount: mounting /dev/block/vold/179:2 on /data/sdext2 failed: Invalid Argument
ext2 may not be supported on your device. Try FAT32 on the second partition"
Click to expand...
Click to collapse
Minitool partition wizard can not see the partition "although I used it yesterday to create it!!"
And now, the windows doesn't read the sd card at all!!
Please, any ideas???
Thanks
If Windows can not read the SD card, then the card is probably hosed. Reboot your computer, try a different card reader / USB port. If you still can't read it, you'll have to reformat the card. Use this program to reformat the SD card (obviously, all data will be lost).
Citizen T-FA said:
I have Xperia Active with FXP CM 10 installed
Yesterday I partitioned a second partition on my sd card so as I can link apps to sd, created 1027 MB ex2 primary partitoin!
Then, It was mounted, I linked the apps and everything was just GREAT!!!
Then, I slept for about 12 hours and when i'm awake i found the apps I linked yesterday are not shown.
Link2sd couldn't mount the partion, although it could see it!!
It gives me this message:
Minitool partition wizard can not see the partition "although I used it yesterday to create it!!"
And now, the windows doesn't read the sd card at all!!
Please, any ideas???
Thanks
Click to expand...
Click to collapse
The message you have means that your device doesn't support 2nd partition in ext2 so you have to create a 2nd partition in FAT32, or eventually in ext3 or ext4. But what do you mean by "the windows doesn't read the sd card at all"?
post-mortem said:
If Windows can not read the SD card, then the card is probably hosed. Reboot your computer, try a different card reader / USB port. If you still can't read it, you'll have to reformat the card. Use this program to reformat the SD card (obviously, all data will be lost).
Click to expand...
Click to collapse
Thanks for your reply
But, when I used the usb connection between the device and my laptop, it read the sd card BUT not the ext2 partition
I think the problem not making windows reading the sd card is about the adapter
p337 said:
The message you have means that your device doesn't support 2nd partition in ext2 so you have to create a 2nd partition in FAT32, or eventually in ext3 or ext4. But what do you mean by "the windows doesn't read the sd card at all"?
Click to expand...
Click to collapse
It supported it yesterday
I linked some games to sd card ext2 and I played them for a long time
When I was awake I didn't find the shortcuts nor the apps i linked and used after linking
There's something weired!
Citizen T-FA said:
Thanks for your reply
But, when I used the usb connection between the device and my laptop, it read the sd card BUT not the ext2 partition
I think the problem not making windows reading the sd card is about the adapter
Click to expand...
Click to collapse
Ah, that's different! Windows does not have built-in support for ext-formatted partitions! You will not be able to see anything on the ext partition from your computer, either directly or through the phone (when SD card is mounted). You will only be able to see what's on the card from within your phone, or by putting the SD card in a linux or mac computer.
post-mortem said:
Ah, that's different! Windows does not have built-in support for ext-formatted partitions! You will not be able to see anything on the ext partition from your computer, either directly or through the phone (when SD card is mounted). You will only be able to see what's on the card from within your phone, or by putting the SD card in a linux or mac computer.
Click to expand...
Click to collapse
so?
Last step I did is that I formatted the sd card by the software you gave me a link to.
BUT, it only formated 13.7 GB!!!! My SD is 16GB, so the real capacity is 14.8!
The difference is the 1GB ext2 partition I created yesterday!
How could I recover it?
Thanks so much by the way for your help
Ok, you need to delete the ext2 partition. Best just delete all partitions, and create a new, primary partition formatted as FAT32.
post-mortem said:
Ok, you need to delete the ext2 partition. Best just delete all partitions, and create a new, primary partition formatted as FAT32.
Click to expand...
Click to collapse
man, how could i do that? I told you, i can't find this partition at all :S
Minitool can't delete all partitions?
post-mortem said:
Minitool can't delete all partitions?
Click to expand...
Click to collapse
No it can't see excep 13.7GB from the 14.8GB sd card
see attachement below
Try using EaseUs.
post-mortem said:
Try using EaseUs.
Click to expand...
Click to collapse
didn't see the partition too :S
Dunno what to do!
nothing reads the ext partition
and in my country it's easier to find a coin in the ocean than to find a linux machine
Citizen T-FA said:
in my country it's easier to find a coin in the ocean than to find a linux machine
Click to expand...
Click to collapse
That's not so hard, it's just big. Wubi let's you kind of dual-boot Windows and Ubuntu, but you can uninstall it any time through Control Panel.
In any case, the ext partition is still there, and your phone should still be able to see it, if it's mounted properly.
post-mortem said:
That's not so hard, it's just big. Wubi let's you kind of dual-boot Windows and Ubuntu, but you can uninstall it any time through Control Panel.
In any case, the ext partition is still there, and your phone should still be able to see it, if it's mounted properly.
Click to expand...
Click to collapse
i'll try this
how could i start over?
now i formatted my phone
how can i find the ext partition and use it?
What do you mean you formatted your phone? You reflashed the ROM?
When you partition the SD card, those partitions will stay there until you remove/change them. In order to access an ext partition on your SD card, it just has to be mounted. All of those *2sd scripts will do that. Link2SD has a menu option which says recreate mount scripts.
post-mortem said:
What do you mean you formatted your phone? You reflashed the ROM?
When you partition the SD card, those partitions will stay there until you remove/change them. In order to access an ext partition on your SD card, it just has to be mounted. All of those *2sd scripts will do that. Link2SD has a menu option which says recreate mount scripts.
Click to expand...
Click to collapse
Oh sorry, I meant that I formatted my card
the menu option in Link2SD doesn't read any ext2 partitions
Citizen T-FA said:
Oh sorry, I meant that I formatted my card
the menu option in Link2SD doesn't read any ext2 partitions
Click to expand...
Click to collapse
It gives me this message
Second partition not found
/dev/block/mmcblk0p2: device not found
Make sure you have two partitions on your SD card and both are primary.
Click to expand...
Click to collapse
Is it too complicated?
That means that your phone cannot read the 2nd partition on the SD card (but you already knew that). Either the partition needs to be reformatted, the partition needs to be removed & recreated, the whole SD card is going bad, or you're using a ROM which does not support ext-formatted partitions (i.e., stock ROMs).
post-mortem said:
That means that your phone cannot read the 2nd partition on the SD card (but you already knew that). Either the partition needs to be reformatted, the partition needs to be removed & recreated, the whole SD card is going bad, or you're using a ROM which does not support ext-formatted partitions (i.e., stock ROMs).
Click to expand...
Click to collapse
the rom supports it, it's not a stock rom, coz as i said before i'm using JellyVanilla JB 4.1.1
no stock JB for xperia phones yet!
also, it already supported the partition and used it yesterday!
So I think i'll try to open the sd using WUBI when it finishes downloading and installing then i'll tell you the results
Thanks anyways
You'll have some fun learning how to use stuff in linux. When you get it up and running, you'll want to use gparted to examine the SD card.

Link2sd mount script cannot be created

Hi,
When I instal Link2SD and open it for the first time it asks for the file system for my SD card second partition and I select ext4, but after always gives this error message "Mount script cannot be created".
The rom I'm using is CyanogenMod 10.2 by Rashed97 and Kernel 2.6.35.10.
Anyone can help me with this please, I tryed many things but didnt worked.
Problem resolved...
I've updated Superuser and rebooted the phone and after link2sd created automatically a new script and mounted the sd card properly.
Cant know exatcly what was the reason but worked.
But now I'm having another problem, Whenever I try to converte to User App I get this message "Failure - pkg: 7cache/download/****.apk Failure [INSTALL_FAILED_INVALID_APK]
Anyone can help me with this?
Mount script cannot be created.
If you store the Link2sd application in your memory card, it will not able to link to SD. Move that application to internal storage and use ext4 as second partition. It is working in my Samsung Galaxy 4.
solved for me
i had the same problem but got it resolved by....
connected the SD and phone using USB cable
backed up my files
i formatted the SD card created 2 partitions using Mini Tool Partition Wizard Manager, one with FAT32 and one with Ext4
exited the Mini Tool Partition Wizard Manager
DIDN'T safely remove the hardware from the taskbar
DIDN'T turn off USB storage
DIDN'T detach the USB cable from the PC
turned off the phone by the power button and disconnected the usb cable.
turned on the phone and opened the Link2sd app and chose ext4 and it created the mount script successfully
Hi all, same here, cannot create mount scripts.
MicroSD 32GB, recovery TWRP v2.7.0.0, rom CyanogenMod 11.0.0-RC11-p500.
Formatted SD-EXT (1024MB, no SWAP partition) in ext4 and now ext3, the mount scripts are not working.
Baboo85 said:
Hi all, same here, cannot create mount scripts.
MicroSD 32GB, recovery TWRP v2.7.0.0, rom CyanogenMod 11.0.0-RC11-p500.
Formatted SD-EXT (1024MB, no SWAP partition) in ext4 and now ext3, the mount scripts are not working.
Click to expand...
Click to collapse
Tried ext4, ext3, ext2 and even fat32... Not one of them works.
There is an app similar to Link2SD but working?
Or how can I use SD-EXT to extend the space for apps?
Thank you.
Baboo85 said:
Tried ext4, ext3, ext2 and even fat32... Not one of them works.
There is an app similar to Link2SD but working?
Or how can I use SD-EXT to extend the space for apps?
Thank you.
Click to expand...
Click to collapse
same issue here
Had similar problem also ("invalid argument" message). Problem in my case was that my CWR formatted to ext4 by my ROM do not want to work with ext4. So I used "mini tool" and formatted to ext3. Connect in CWR to PC and format , reboot, create script, ....
I solve the problem by not using the SD-Ext.
I'm guessing that this is something none of you are aware of as I don't see it mentioned in any of your posts...
Link2SD will fail if there isn't enough free space in /system.
Baboo85 said:
Tried ext4, ext3, ext2 and even fat32... Not one of them works.
There is an app similar to Link2SD but working?
Or how can I use SD-EXT to extend the space for apps?
Thank you.
Click to expand...
Click to collapse
For others who find their way to this thread
It appears this is an issue specific to the device - and that is an "unknown" until you try. I tried the above also - with minitool partition manager and easus partition manager and none of the partitions worked with Link2SD. Then I downloaded and installed app2sd (all in one tool) on the device and used the partition tool included with it to reformat the second partition. Be advised the app2sd version from google Play was full of absolutely ridiculous ads that I had to constantly escape and back out of or "X" out of at the top right or left corners - to get back to use the actual tool itself.
1. Ext2 format failed with an error (tried it twice even after wiping the partition)
2. did not try Ext3
3. Ext4 formatted successfully - but the mount script of Link2SD STILL failed
4. FAT32 formatted successfully - AND the mount script of Link2SD worked
I then uninstalled App2SD - and hopefully all the ads it brings
It should be noted even after successfully getting Link2SD working - it could not "move an app" to the SD card because it reported the device - a Teclast x70R was using "emulation" - but Link2SD reported it could "link" and move some files to the SD of some programs. I suspect the reality is the FAT32 file system has something to do with this as it cannot carry the permissions needed by UNIX type Operating Systems.
Others have said the EXT file system partition must be the first partition on the SD card; and while this had proved to be true with a PC hard drive when trying to install OSX as a dual boot Operating System - on my Android device it simply resulted in the SD card being unmounted - or failing to mount at all
It should also be noted that the minitool and easus partition managers COULD NOT successfully format the second partition of the SD card apparently either - because Windows technically only will recognize the first partition on a removable SD card type drive - apparently true even though they both reported successfully formatting the partition - when in fact it was ONLY AFTER reformatting using the app2sd partition tool did I get meaningful error messages - and/or that the FAT32 format of the second partition actually worked in Link2SD
It is another example of "go figure"

Problem mounting sdcard

My sdcard can be detected by windows. I can see all files on it.
I tried minitool partition to make an EXT4. Now I have a problem, I format the sdcard and still can't be mounted on my pico.
I tried to activate the option via adb
I hope xda's help me.
(sorry from my english)
did you make the main sdcard partition as ext4? is it logical? you gotta make fat32 as primary to make it work in your android..windows can read logical partition but androids can't.

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