Develop Bugs

Backup ext partition

Hi.
I've just bought a new memory card for my hero. Therefore I would like to know if it is possible to backup the est partition I have so I don't loose all my installed programs?
//ChosSimbaOne
Sent from my HTC Hero using XDA App

Hi,
I suggest theses command lines :
For that you should use adb sdk from :
http://developer.android.com/intl/fr/sdk/index.html
For BACKUP:
mount -t vfat /dev/block/mmcblk0p1 /sdcard
mount -t ext3 /dev/block/mmcblk0p2 /system/sd
cd /system/sd
tar cvf /sdcard/ext3.tar *
For RESTORE:
mount -t vfat /dev/block/mmcblk0p1 /sdcard
mount -t ext3 /dev/block/mmcblk0p2 /system/sd
cd /system/sd
tar xvpf /sdcard/ext3.tar

ChosSimbaOne said:
Hi.
I've just bought a new memory card for my hero. Therefore I would like to know if it is possible to backup the est partition I have so I don't loose all my installed programs?
//ChosSimbaOne
Sent from my HTC Hero using XDA App
Click to expand...
Click to collapse
first backup you all your apps to your PC in a folder of your choice, once you are done .
partition your new sdcard, once partitioning is done. just follow this guide:
http://villainrom.co.uk/wiki/index.php?title=Apps2SD

[FIX] ext4 for JPM/JP6

Hi,
in case that anybody of you was using Mimocan fix (ext4 on the external SD), here I have attached libs for enabling ext4 on JP6/JPM (without modifying kernel).
I'm personally using ext4 partition on external SD, and loopback file on this partition formatted in ext2.
That way I'm getting 2000 in Quadrant, and the phone is working fast.
Here is my userinit:
Code:
insmod /data/local/fs_jpm/slow-work.ko
insmod /data/local/fs_jpm/jbd2.ko
insmod /data/local/fs_jpm/fscache.ko
insmod /data/local/fs_jpm/mbcache.ko
insmod /data/local/fs_jpm/ext4.ko
busybox mount -t ext4 -o noatime,nodiratime,errors=continue /dev/block/mmcblk1p2 /data/sdcard_ex2_mnt
busybox mknod /dev/loop0 b 7 0
busybox losetup /dev/loop0 /data/sdcard_ex2_mnt/linux.ex2
mount -t ext2 -o noatime,nodiratime,errors=continue /dev/loop0 /data/ext2data
busybox mount -o bind /data/ext2data/data /data/data;
busybox mount -o bind /data/ext2data/app /data/app;
busybox mount -o bind /data/ext2data/dalvik-cache /data/dalvik-cache;
P.S. Thanks for darkbyt3, for making slow_work module!
P.S. 2. Also in the archive is NILFS2 support for those who like experiments , and CIFS by darkbyt3.

thanks for the info.
linux noob question, but where does the userinit file live?
im used to editing scripts in /system/init.d but that was on a custom rom.

/system/bin/userinit.sh
kanemari said:
thanks for the info.
linux noob question, but where does the userinit file live?
im used to editing scripts in /system/init.d but that was on a custom rom.
Click to expand...
Click to collapse

Sorry for being even more of a noob, but can you tell me how to apply the mimocan fix for JPM/JP6 step by step please, I would love to be able to use it.
I have tried all the lag fixes and nothing comes close to what I had with the mimocan fix, even though you get better scores none of them were as smooth as mimocan fix.
Thanks a lot really appreciate the help.

milan2008 said:
Sorry for being even more of a noob, but can you tell me how to apply the mimocan fix for JPM/JP6 step by step please, I would love to be able to use it.
I have tried all the lag fixes and nothing comes close to what I had with the mimocan fix, even though you get better scores none of them were as smooth as mimocan fix.
Thanks a lot really appreciate the help.
Click to expand...
Click to collapse
Like u did i tried many lagfix, feel less lag with voodoo or mimocan compare others, but least lag with combo of voodoo or mimocan with minfree (autokiller preset aggressive). Give it a try...

Hi, sorry for the questions:
How i can do this fix?
Thanks

vitalij said:
Hi,
in case that anybody of you was using Mimocan fix (ext4 on the external SD), here I have attached libs for enabling ext4 on JP6/JPM (without modifying kernel).
I'm personally using ext4 partition on external SD, and loopback file on this partition formatted in ext2.
That way I'm getting 2000 in Quadrant, and the phone is working fast.
Here is my userinit:
Code:
insmod /data/local/fs_jpm/slow-work.ko
insmod /data/local/fs_jpm/jbd2.ko
insmod /data/local/fs_jpm/fscache.ko
insmod /data/local/fs_jpm/mbcache.ko
insmod /data/local/fs_jpm/ext4.ko
busybox mount -t ext4 -o noatime,nodiratime,errors=continue /dev/block/mmcblk1p2 /data/sdcard_ex2_mnt
busybox mknod /dev/loop0 b 7 0
busybox losetup /dev/loop0 /data/sdcard_ex2_mnt/linux.ex2
mount -t ext2 -o noatime,nodiratime,errors=continue /dev/loop0 /data/ext2data
busybox mount -o bind /data/ext2data/data /data/data;
busybox mount -o bind /data/ext2data/app /data/app;
busybox mount -o bind /data/ext2data/dalvik-cache /data/dalvik-cache;
P.S. Thanks for darkbyt3, for making slow_work module!
P.S. 2. Also in the archive is NILFS2 support for those who like experiments , and CIFS by darkbyt3.
Click to expand...
Click to collapse
Isn't there aversion without debug information? 3mb for a kernel module is huge

sztupy said:
Isn't there aversion without debug information? 3mb for a kernel module is huge
Click to expand...
Click to collapse
Maybe, the size is irrelevant for this kind of using these modules - anyway I copy them to /data where I have plenty of space.
Ext4 is working fine, however if used separately without loop device it doesn't produce speed increase, differently from eclair builds.
Sent from my GT-I9000 using XDA App

tanoxxx said:
Hi, sorry for the questions:
How i can do this fix?
Thanks
Click to expand...
Click to collapse
I did it manually, and it have lots of steps. Probably if you were not using mimocan's fix - this lagfix is not for you. You need to repartition sd card, format it, create loop device, and then manually copy data there.

milan2008 said:
Sorry for being even more of a noob, but can you tell me how to apply the mimocan fix for JPM/JP6 step by step please, I would love to be able to use it.
I have tried all the lag fixes and nothing comes close to what I had with the mimocan fix, even though you get better scores none of them were as smooth as mimocan fix.
Thanks a lot really appreciate the help.
Click to expand...
Click to collapse
Well It may contain errors, but I am doing like this:
1) Create second primary partition on the external SD card and make it EXT4 (easiest to do it in external card reader, using PARAGON or GPARTED). And format it of cause. Choose size, for example 1Gb
Remember that first primary partition must remain FAT32
2) Put the card back to phone.
3) You need root and terminal (adb or any terminal on phone)
4) copy modules from my first post to /data/local/fs_jpm/
5) run following commands:
Code:
insmod /data/local/fs_jpm/slow-work.ko
insmod /data/local/fs_jpm/jbd2.ko
insmod /data/local/fs_jpm/fscache.ko
insmod /data/local/fs_jpm/mbcache.ko
insmod /data/local/fs_jpm/ext4.ko
mkdir /data/sdcard_ex2_mnt
busybox mount -t ext4 -o noatime,nodiratime,errors=continue /dev/block/mmcblk1p2 /data/sdcard_ex2_mnt
busybox dd if=/dev/zero of=/data/sdcard_ex2_mnt/linux.ex2 bs=1024 count=800000
Change 800000 to any size of loopback file you want (here it is 800Mb)
Code:
busybox mknod /dev/loop0 b 7 0
busybox losetup /dev/loop0 /data/sdcard_ex2_mnt/linux.ex2
busybox mkfs.ext2 /dev/loop0
mkdir /data/ext2data/
mount -t ext2 -o noatime,nodiratime,errors=continue /dev/loop0 /data/ext2data
cp -rp /data/data /data/ext2data/
cp -rp /data/app /data/ext2data/
cp -rp /data/dalvik-cache /data/ext2data/
mv /system/bin/playlogos1 /system/bin/playlogosnow
copy files from attached system_bin.zip archive, to /system/bin.
Code:
busybox chmod +x /system/bin/userinit
busybox chmod +x /system/bin/playlogos1
then just reboot.
After reboot you can check that correct mounts are used with
Code:
mount
command.

wolfiett said:
/system/bin/userinit.sh
Click to expand...
Click to collapse
i put a script there but it doesnt work... and the script runs fine if i run it from the terminal prompt.
how can i check what the issue is?

vitalij said:
Well It may contain errors, but I am doing like this:
1) Create second primary partition on the external SD card and make it EXT4 (easiest to do it in external card reader, using PARAGON or GPARTED). And format it of cause. Choose size, for example 1Gb
Remember that first primary partition must remain FAT32
2) Put the card back to phone.
3) You need root and terminal (adb or any terminal on phone)
4) copy modules from my first post to /data/local/fs_jpm/
5) run following commands:
Code:
insmod /data/local/fs_jpm/slow-work.ko
insmod /data/local/fs_jpm/jbd2.ko
insmod /data/local/fs_jpm/fscache.ko
insmod /data/local/fs_jpm/mbcache.ko
insmod /data/local/fs_jpm/ext4.ko
mkdir /data/sdcard_ex2_mnt
busybox mount -t ext4 -o noatime,nodiratime,errors=continue /dev/block/mmcblk1p2 /data/sdcard_ex2_mnt
busybox dd if=/dev/zero of=/data/sdcard_ex2_mnt/linux.ex2 bs=1024 count=800000
Change 800000 to any size of loopback file you want (here it is 800Mb)
Code:
busybox mknod /dev/loop0 b 7 0
busybox losetup /dev/loop0 /data/sdcard_ex2_mnt/linux.ex2
busybox mkfs.ext2 /dev/loop0
mkdir /data/ext2data/
mount -t ext2 -o noatime,nodiratime,errors=continue /dev/loop0 /data/ext2data
cp -rp /data/data /data/ext2data/
cp -rp /data/app /data/ext2data/
cp -rp /data/dalvik-cache /data/ext2data/
mv /system/bin/playlogos1 /system/bin/playlogosnow
copy files from attached system_bin.zip archive, to /system/bin.
Code:
busybox chmod +x /system/bin/userinit
busybox chmod +x /system/bin/playlogos1
then just reboot.
After reboot you can check that correct mounts are used with
Code:
mount
command.
Click to expand...
Click to collapse
Thanks a lot, I am going to try it now.
Update: it keeps failing, I am getting `Failed (Operations not permitted)`. I don't know if anyone can help.
I tried it with Tayutama's latest rom.

milan2008 said:
Thanks a lot, I am going to try it now.
Update: it keeps failing, I am getting `Failed (Operations not permitted)`. I don't know if anyone can help.
I tried it with Tayutama's latest rom.
Click to expand...
Click to collapse
At which point are you getting the error? Maybe you /system partition is read-only? try
Code:
su
busybox mount -o remount,rw /system
Or you do not have a root

wolfiett said:
/system/bin/userinit.sh
Click to expand...
Click to collapse
Actually it should be
Code:
/system/bin/userinit

[Q] Different commands for mounting system partition?

Are these the same? Or what am I missing here?
mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system
mount -o rw,remount /dev/block/stl9 /system
Thanks in advance...

Sorry for the bump, but Guys I ve read a lot of posts about guides and tuts. Thats why I found these two methods, So anyone with a sound knowledge please give me a clarification on this? What is the difference about those?

Where do you want to mount it?
in ADB it's just mount /system. In root explorer it is automatically mounted and you can change between R/O and R/W with a single button.

nagypapi said:
Where do you want to mount it?
in ADB it's just mount /system. In root explorer it is automatically mounted and you can change between R/O and R/W with a single button.
Click to expand...
Click to collapse
Thanks for replying,
I found one in here, the workshop about the ADB
http://forum.xda-developers.com/showthread.php?t=879701
You may need to remount system as writable with:
Code:
mount -o rw,remount /dev/block/stl9 /system
That applies when using chmod as well.
Click to expand...
Click to collapse
mount /system seems pretty self explanatory and I know this guide says "remount" but I am not very clear what remounting Vs mounting the Sys partition means. And why are there two different ADB commands for remounting? Hope you can enlighten me.

Well, I always use adb from the recovery, so the basic mount /system command is enough for me.
But sometimes (depending on the operation) - it requires re-mount. However, I never use the /dev/block/stl9 part, just the mount -o rw,remount /system part, and worked fine all the time.

nagypapi said:
Well, I always use adb from the recovery, so the basic mount /system command is enough for me.
But sometimes (depending on the operation) - it requires re-mount. However, I never use the /dev/block/stl9 part, just the mount -o rw,remount /system part, and worked fine all the time.
Click to expand...
Click to collapse
Okay I got it, Can you also please tell me what is the difference of using ADB from the recovery? I assume that the interference from the other system processes is minimum at the recovery? If so I'd also switch to use ADB from the recovery too.

Well if you are not S-OFF, you can mount the /system partition as R/W only from recovery (phone is not booted).

[Q]What filesystem type is used in ICS system.img(sin)

What filesystem type is system.img(sin) from ICS?
So far it was yaffs. Now it can't be extracted like older fw's, at least I couldn't do it like I did it so far
I tried following this tutorial here but failed: http://forum.xda-developers.com/showthread.php?p=25251000
[email protected]:/home/madfish/android/system# mount -o loop system.img system
mount: you must specify the filesystem type
Click to expand...
Click to collapse
also tried
[email protected]:/home/madfish/android/system# mount -o ext3 system.img system
mount: /home/madfish/android/system/system.img is not a block device (maybe try `-o loop'?)
[email protected]:/home/madfish/android/system# mount -o vfat system.img system
mount: /home/madfish/android/system/system.img is not a block device (maybe try `-o loop'?)
[email protected]:/home/madfish/android/system# mount -o ntfs system.img system
mount: /home/madfish/android/system/system.img is not a block device (maybe try `-o loop'?)
[email protected]:/home/madfish/android/system# mount -t loop system.img system
mount: unknown filesystem type 'loop'
[email protected]:/home/madfish/android/system# mount -t vfat system.img system
mount: /home/madfish/android/system/system.img is not a block device (maybe try `-o loop'?)
[email protected]:/home/madfish/android/system# mount -t ntfs system.img system
NTFS signature is missing.
Failed to mount '/home/madfish/android/system/system.img': Invalid argument
The device '/home/madfish/android/system/system.img' doesn't seem to have a valid NTFS.
Maybe the wrong device is used? Or the whole disk instead of a
partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?
[email protected]:/home/madfish/android/system# mount -t ext4 system.img system
mount: /home/madfish/android/system/system.img is not a block device (maybe try `-o loop'?)
Click to expand...
Click to collapse

[DEV] SCRIPT MOD inte2ext swap

I am a fresh owner Tf300.
It annoyed me that he sees Tf300 internal memory as sdcard
and as an external Micro SD card.
I searched and znalałem Script of SG3.
Modified it - it works.
But there is a problem.
Micro SD card is mounted as sdcard
but the internal (the old SDcard) will not mount)
Maybe someone can help
Because he wants to improve both were mounted partitions correctly
script base from galaxys3 http://forum.xda-developers.com/showthread.php?t=1772234
KOD:
#!/system/bin/sh
# Wait for the system to mount the internal media and remout it as r/o
# this should prevent the system from writing to it until we make the
# switch, yet keeps the /data/media r/w, so at the end it won't be r/o
for i in $(seq 1 1 3000)
do
if ( grep -c "/storage/sdcard0" /proc/mounts ); then
mount -o remount,ro /storage/sdcard0
break;
fi
usleep 100000
done
# now wait for the external media and remount
for i in $(seq 1 1 3000)
do
if ( grep -c "/Removable/MicroSD" /proc/mounts ); then
# create new temporary mount point
mount -o remount,rw /
mkdir /storage/tmpmnt
mount -o remount,ro /
# do the rebinding using the temporary mount point
mount -o bind /data/media /storage/tmpmnt
mount -o bind /Removable/MicroSD /storage/sdcard0
mount -o bind /Removable/MicroSD /data/media
umount /Removable/MicroSD
mount -o bind /storage/tmpmnt /storage/MicroSD
umount /storage/tmpmnt
# make bind for ums mode
mkdir -p /storage/MicroSD/sdcard1
touch /storage/MicroSD/.nomedia
mount -o bind /storage/sdcard0 /storage/extSdCard/external_sd/sdcard1
# done
break;
fi
usleep 100000
done
exit

I´m no developer but that´s a start. Hope someone helps.

arcance said:
I am a fresh owner Tf300.
It annoyed me that he sees Tf300 internal memory as sdcard
and as an external Micro SD card.
I searched and znalałem Script of SG3.
Modified it - it works.
Click to expand...
Click to collapse
Trochę Polskiego się tu wkradło
Please change word "znalazłem" to "found"

It works for me after I modified it and install the latest busybox v1.21.0. ( I'm using Energy ROM 4.1.1 btw). Let me know if this works for you.
Here's the script ( I also attach the flashable zip) :
#!/system/bin/sh
# Wait for the system to mount the internal media and remout it as r/o
# this should prevent the system from writing to it until we make the
# switch, yet keeps the /data/media r/w, so at the end it won't be r/o
for i in $(seq 1 1 3000)
do
if ( grep -c "/storage/sdcard0" /proc/mounts ); then
mount -o remount,ro /storage/sdcard0
break;
fi
usleep 100000
done
# now wait for the external media and remount
for i in $(seq 1 1 3000)
do
if ( grep -c "/Removable/MicroSD" /proc/mounts ); then
# create new temporary mount point
mount -o remount,rw /
mkdir /storage/tmpmnt
mount -o remount,ro /
# do the rebinding using the temporary mount point
mount -o bind /data/media /storage/tmpmnt
mount -o bind /Removable/MicroSD /storage/sdcard0
mount -o bind /Removable/MicroSD /data/media
umount /Removable/MicroSD
mount -o bind /storage/tmpmnt /Removable/MicroSD
umount /storage/tmpmnt
# make bind for ums mode
mkdir -p /Removable/MicroSD/EXTERNAL_SD
touch /Removable/MicroSD/ EXTERNAL_SD/.nomedia
mount -o bind /storage/sdcard0 /Removable/MicroSD/EXTERNAL_SD
# done
break;
fi
usleep 100000
done
exit

Odp: [DEV] SCRIPT MOD inte2ext swap
Ok trying thanx for help
Sent from my HTC Desire Z using xda app-developers app

One question. Will this script solve the I/O problem, as now the tablet will use my class10 sdcard as internal, or didn't I understand it well?

why not just edit the vold file
Sent From My Unlocked & Rooted 4.2.2 Android Powered []D [] []V[] []D TF300T

Works
I think good solution for people ho heve only 16gb internal and sdmicro 64gb or biger
Edit vold ithink no god solution and not be save
Regards
Sent from my ASUS Transformer Pad TF300T using xda app-developers app

arcance said:
Works
I think good solution for people ho heve only 16gb internal and sdmicro 64gb or biger
Edit vold ithink no god solution and not be save
Regards
Sent from my ASUS Transformer Pad TF300T using xda app-developers app
Click to expand...
Click to collapse
you can edit the vold file and accomplish the same results. you need to use a root explorer.I have done it on every device I own at one point.yes it saves.

Hi
Trying use modification
When try flesh i see error can't find tmpmnt
I don't have idea
Use 4.2 xcromi 4.7.0
And need more space for instal soft my tf300 have 16gb only.
Or sugestion how modyfication vold.
Reagarts
Sent from my ASUS Transformer Pad TF300T using xda app-developers app