Database Info

[MOD][REC][29/10]Data2SD -- I/O-Boost

Data2SD MOD: Moves /data partition to External SD, noticeable performance increase
All files attached are flashable .zips Installation instructions updated.
clemsyns cpu OC 1800 kernel is out! Good stuff!
Symlink added to /data2 (internal storage now found as /sdcardi)
You will need to disable journaling using the guide in post #3 if you are on CleanROM 2.1 to 2.3
as the rom does this as standard. If not you will get error!
I have had nothing to do with the development of this MOD, all credit goes to TweakerL
Also a huge thanks to scrosler for the fantastic CleanROM
Thanks to clemsyn for the amazing kernel!
Feel free to go to original thread and give your thanks: http://forum.xda-developers.com/showthread.php?t=1803252
and also to seek information, the thread is full of it.
What/Why/How?
This MOD was developed to aid the I/O-issues the Transformer Prime has and the Infinity inherited. Since it was a known fact that the internal
storage was slow/poor, TweakerL decided to try mounting the /data partition to the MicroSD card. Hence an obvious necessity
will be that you have a fast MicroSD card. Several have been tried and there is no real conclution as to what is the best in regards
to manufacturer or class (a class 6 card can have better random write speeds than a class 10 card), I use a Sandisk 64GB UHS-I
class 10 card and so does several others with good results.
The way this works is that you change the ramdisk so that it mounts /data to the second partition of your micro sd. Your internal
storage (the old /data partition) will be mounted as /data2.
Requirements
1. Unlocked and Rooted
2. You MUST repartition your Micro SD. The .zip you flash will mount /data to mmcblk1p2, which basically says "mount /data to the
second partition in the external SD." also, the ramdisk expects that partition to be ext4, so essentially:
Make sure you have an external SD with at least two partitions and that the second partition is formatted to ext4. I use fat32 on the first partition
because it's recognized by most devices.You will also need to make both partitions "primary" partitions. I personally use Gparted to repartition
my stuff, but feel free to use whatever you like. Even if you're on windows you can still use gparted by using virtualbox, or you can use a tool
called MiniTool Partition Wizard, I haven't tried it myself but it is reported to be good.
3. Research your Micro SD, find out if it has good random write speeds. There is no use in this mod if you card is slower than your internal
memory.
4. Although it's not a requirement it is a recommendation to have gone through the Nvflash procedure. It has saved alot of people from bricks
and is just great to have.
5. Verify that the .zip is compatible with your ROM, if it is not listed feel free to ask for a version for your preferred ROM.
Disclaimer
I take no responsibility for whatever happens to your device using this MOD, it is flashing a kernel so take precautions!
Installation
1. Boot to recovery, flash your preferred ROM
2. Reboot to initial setup (Don't run through)
3. Reboot to recovery, flash the matching Data2SD.zip
4. Disable journaling (Optional on all ROMs except CleanROM)
5. Reboot
When it reboots you will get a blue progress bar and it will be just as you flashed a new rom, you'll get the device setup screen.With my
MicroSD I get about twice the Random Write speed with this mod; Internal=0.20mb/s External=0.40mb/s . We will have a look at doubling
these figures further down (I currently have Random write speed average of 0.8mb/s).
Reverting
Flash a ROM
Feel free to ask any questions!
MD5 checksum for cm10-1025data2sd : 78b9e62e27204efeb0bdd3c926c4a30a
MD5 checksum for CleanROM2-3Data2SD: 60eef4e666ec97216ee0801189233719
MD5 checksum for clemsyn's 600 OC kernel ver8: e07b4a5a5f7ae2976a86460e5309199a
MD5 checksum for clemsyn's 650 OC kernel ver8: cf6d36da2d26db2e72c1c110a87cad7f
MD5 checksum for clemsyn's 650 OC kernel ver22: 1ec0e9c5c5ac7b012e3095f03f7dd234

Modded Recovery
Enough with the screenshots, I think people know what it's all about by now!
TWRP 2.3.1.0 Data2SD Edition
Modded by flumpster, thanks a million!
Attached is a version of the latest TWRP recovery, the only mod done is changing where
it mounts /data so it backs up the correct partitions!
Backup to External will backup to your first partition (fat32 maybe) and backup to internal will
backup to your ext4/2 partition.It is recommended to back up to external which is the fat partition.
If you backup to internal which is now the ext partition and something goes wrong with that partition
you wont have access to your backup.
Instructions:
You must remove the old twrp settings from your prime for this to work correctly. Delete any
TWRP folders that are in sdcard, data2/media and removable/sdcard. If you have backups there
already that you want to keep leave the backups folder in the TWRP directories and then just
delete the files that are in the root of the TWRP folder to get rid of the settings left behind.
If you are on a windows pc just extract the zip somewhere and run the bat file and then follow the
onscreen instructions. It will flash it for you. If not, navigatate to the fastboot folder, find the .blob
and flash the usual way with fastboot.
I have tested it myself but would love some feedback on this as I am currently the only one testing.

Disabling journaling!
This is a mod that flumpster tested and found to work fine. I have tested it to and it is fast as a shark. It is somewhat
controvertial though, someone thinks disabling journaling on the ext4 file system could cause crashes. Also if you are
plagued with random reboots it can cause data loss. I've been running it for a couple of days without issues and getting fantastic results.
Here is a description on how to do it if you want to try:
To Disable Journaling in EXT4
Go into TWRP and then open a command prompt on your computer where adb is.
Type adb shell and enter it then type the following commands one at a time.
umount /data
umount /sdcard
e2fsck -f /dev/block/mmcblk1p2
tune2fs -O ^has_journal -c 1 -i 1d -m 0 /dev/block/mmcblk1p2
e2fsck -f /dev/block/mmcblk1p2
Watch out for the fourth line, after tune2fs - that is a capital O not a zero. The one further along the line is a zero.
To check if it has worked type the follwing after them
tune2fs -l /dev/block/mmcblk1p2 | grep features
If you don't see has_journal in the output all is good.

And the size of the ext4 partition should be?

I was planning on taking a stab at porting this project to the TF700 this weekend. Thanks for your work! Going to test ASAP.

maxrdlf95 said:
And the size of the ext4 partition should be?
Click to expand...
Click to collapse
That is up to you really, the ext4 partition will be your new "internal storage" so if you if you need to store alot there like big games etc. you'll need more. If like me you have little use for internal storage you increase the size of first partition. I have 49gb fat 32 as my first partition and 11gb ext4 as my second.
I transfer movies etc. from a windows machine to the fat32 partition.
Good question though, I should have mentioned it in the OP.
Sent from my ASUS Transformer Pad TF700T using xda premium

The mysterious CheckROM that you've mentioned twice is just CleanROM, right?

Kisakuku said:
The mysterious CheckROM that you've mentioned twice is just CleanROM, right?
Click to expand...
Click to collapse
Yes, of course. Thank you for pointing that out, I've used CheckROM on another device so it got mixed up. OP updated.

fordwolden said:
Data2SD MOD: Moves /data partition to External SD
Click to expand...
Click to collapse
This looks very interesting!
fordwolden said:
Disabling journaling!
Click to expand...
Click to collapse
Actually the ROM does this during install. However on 2.0 it was causing issues with the latest TWRP so I temporarliy took it out.
It ended up being a twrp issue. IM going to put it back in for version 2.1 (with will be 10.4.4.18 based) and revert to the old version of twrp. The newer 2.3.x builds dont seem as reliable at this time.
But good write up!

Also worth to mention that this mod makes it a little bit harder to do nandroids. But in TWRP you have a option to backup sd-ext, that will actually be a backup of your data partition. So to restore data you just restore sd-ext. All other partitions will backup and restore normally.
Edit: No longer applicable, sd-ext backup no longer supported. Modded TWRP recovery in post #2

fordwolden said:
Also worth to mention that this mod makes it a little bit harder to do nandroids. But in TWRP you have a option to backup sd-ext, that will actually be a backup of your data partition. So to restore data you just restore sd-ext. All other partitions will backup and restore normally.
Click to expand...
Click to collapse
heh... i was just going to ask about that. thanks for the clarification.

fordwolden said:
Also worth to mention that this mod makes it a little bit harder to do nandroids. But in TWRP you have a option to backup sd-ext, that will actually be a backup of your data partition. So to restore data you just restore sd-ext. All other partitions will backup and restore normally.
Click to expand...
Click to collapse
People really use Nandroid? lol :angel:

scrosler said:
People really use Nandroid? lol :angel:
Click to expand...
Click to collapse
Some feel more comfortable doing it! I feel like it's "bringing a knife to a gunfight"! False safety.

Since the 12/10 update to .18 that I installed just yesterday my performance skyrocketed. I don't experience any lag anymore, no hickups, much faster loading etc. I suddenly don't feel like this tablet was a waste of money anymore
It's all stock and normal.
So if you don't have this update yet, try it out before trying anything like this.

Would there be any way of getting this working on a rooted stock FW?
I saved root before updating to JB so I'm going to stay unlocked for as long as I have warranty.

Moning2 said:
Since the 12/10 update to .18 that I installed just yesterday my performance skyrocketed. I don't experience any lag anymore, no hickups, much faster loading etc. I suddenly don't feel like this tablet was a waste of money anymore
It's all stock and normal.
So if you don't have this update yet, try it out before trying anything like this.
Click to expand...
Click to collapse
Gospel singers from the General section? Now that's a first for me! I'm glad you're happy with your tablets,
now try downloading CleanROM 2.1 while multi-tasking on your device, still happy? I bet you want to unlock
before the download is finished!
New version for CleanROM 2.1 coming up, sorry for the delay. Been getting some sleep and my Inet connection
is about as stable as Uranium!
New version has symlinked /data2 partition so your internal storage will now be found in /sdcardi. Just for ease
of use.

rikc said:
Would there be any way of getting this working on a rooted stock FW?
I saved root before updating to JB so I'm going to stay unlocked for as long as I have warranty.
Click to expand...
Click to collapse
You meant going to stay locked, right! No, sorry this is not possible for locked bootloaders.

fordwolden said:
You meant going to stay locked, right! No, sorry this is not possible for locked bootloaders.
Click to expand...
Click to collapse
Ok, thanks, that's clear!

I want this on stock rooted unlocked ROM

fordwolden said:
New version for CleanROM 2.1 coming up, sorry for the delay. Been getting some sleep and my Inet connection
is about as stable as Uranium!
.
Click to expand...
Click to collapse
Oh come on, Uranium has been around Earth for four and a half billion years and it's still here, can't be that unstable
Gesendet von meinem GT-N7000 mit Tapatalk 2

[MOD] Data2SD (Enhanced) - I/O Fix

At the suggestion of several users, I am forking the previous thread. I am planning on supporting several ROMs and this is the best course to keep everything organized and provide support.
What is this?
Background:
The speed of the flash memory in the Transformer line of tablets is very poor. This is very apparent when installing or updating applications from the Play Store, copying files over USB, or using an app that caches lots of data like a web browser. The tablet will hiccup and stutter due to the I/O bottleneck. Running Androbench shows random write speeds averaging less than .2MB/sec.
The workaround:
Utilizing a fast, class 10 microSD card, we can move the /data partition to something significantly faster. The /data partition is where apps are installed to and where they store their configuration information and data. By redirecting /data to these fast microSD cards, we eliminate this bottleneck from our devices. With a properly fast card, users have reported a complete elimination of I/O related hiccups and system freezes. I have based my enhancements on the initial work by TweakerL on the Transformer Prime. Credit to fordwolden to porting his work to the Infinity.
The enhancements:
Previous implementations of this mod had the internal data partition mounted to /data2, with the media subfolder (your internal user storage) only available via root apps. There were symlinks set up at /sdcardi, etc, but these still required root permission to access. This is due to permissions on the /data partition and applies to both /data and /data2. Google gets around this by creating a "virtual" sdcard that points to /data/media. I have created a second "virtual" sdcard that points to /data2/media. This mod creates the scenario below:
/data = ext4 partition on microSD (fast)
/data2 = ext4 partition on internal storage (slow)
New changes:
/data/media -> Virtual SD Card Daemon -> /storage/sdcard0
/data2/media -> Virtual SD Card Daemon -> /storage/sdcardi
/sdcardi -> Symlink -> /storage/sdcardi
/mnt/sdcardi -> Symlink -> /storage/sdcardi
/storage/sdcardi is the virtual SD card for the internal storage. You should see all the files you had saved to this space before using data2sd. These files should be accessibly by any standard non-root Android app.
Note to kernel developers: This mod is more than just changes to the kernel. In order for the internal storage to be properly mounted at /storage/sdcardi, I have modded the Virtual SD Card Daemon that comes with Android. The stock binary is /system/bin/sdcard. I made a copy, modified it using a hex editor, called it /system/bin/sdcardi, and included it in my flashable zips. If you wish to make a data2sd version of your kernel, you must include this file in your zip. Additionally, be sure to add the "service sdcardi" line to your init.cardhu.rc that I have in mine.
Installation
Requirements
1) Class 10 microSD, at least 8gb
2) A computer with card reader
3) Partitioning software. Recommended: gparted LiveCD
Instructions
1) Decide how big you want to make the ext4 partition for /data. Remember, this is going to be the space for installing applications AND the /sdcard space that games will use the cache their extra data. Kindle books, Dropbox files, pics from the camera WILL ALL GO HERE. Personally, I decided to make the ext4 partition the whole 64gb of my card.
The ext4 partition has to be partition #2 on the microSD card. Why? This is to give people with large cards the option of creating a FAT32 or NTFS area as partition #1. This allows the card to be read by a Windows or Mac computer using a card reader. I use my tablet as my card reader with the USB cable, so I wasn't worried about this. I used gparted to create a small 8mb unformatted partition as partition #1, then a second 64gb partition to fill the rest of the card. I formatted this second partition in ext4.
2) Format your microSD card - Download Gparted Live CD (http://goo.gl/dJQAu) and use Imgburn (http://goo.gl/33MY9) to write to disc. Boot to Gparted using your CD after setting the CD as the primary boot device in your BIOS. Once in Gparted, create the 2 partitions described above, the first partition is Fat32, the second partition is ext4 or ext2. Set both partitions to type: Primary.
3) Insert microSD into tablet and flash any data2sd kernel for your ROM. (Note: Flashing any ROM will overwrite your data2sd kernel. You will have to re-flash the data2sd kernel if you change ROM or even upgrade your current one) After booting back into Android, you should be greeted with the Setup Wizard. Remember, this is a fresh /data partition, so it's a clean slate. It's a good idea to take a TitaniumBackup** ahead of time. I am experimenting with ways to make the transition more painless.
**Note about taking a TitaniumBackup before switching to data2sd. After the conversion, your internal storage will be mounted to /sdcardi. By default, TitaniumBackup looks for previous backups in /sdcard not in /sdcardi. You have two choices. Copy the TitaniumBackup folder from /sdcardi to /sdcard and restart the app, or change the backup location to /sdcardi/TitaniumBackup in the app preferences. Either of these options should work fine.
Optional: Verify data2sd is working. Pick any method you like:
a) Open a file explorer such as Root Explorer, ES, etc. You should see /sdcard and /sdcardi and be able to browse the files within. /sdcard is your ext4 partion on the microSD while /sdcardi is the internal storage. You should able to copy data between them.
b) Download "Androbench" app from the market and run "micro" sdcard check, if you see 0.4mb/sec or more in random write you're on data2sd.
c) Power off your device, remove your microSD card, then power back on your device. You should received an error message "Encryption unsuccessful". Insert microSD and reboot to fix.
Uninstallation
Don't like data2sd? Just flash a non-data2sd kernel using recovery and when you boot back into Android your /data will be on the internal storage. This could also be accomplished by flashing your ROM on top of itself without wiping.
Troubleshooting
1) Grab the mount-data2sd.zip from the second post.
2) Boot into TWRP and flash the mount-data2sd.zip. This will mount the microSD as /data in recovery. It will allow us to wipe it, format, etc using recovery.
3) Wipe "Internal Storage". This will erase the entire ext4 partition on your microSD.
4) Flash ROM
5) Flash data2sd kernel for ROM
*CAUTION*: If you don't flash mount-data2sd.zip before your wipe, you will be wiping your internal memory.
Download data2SD kernels
These are flashable zips. It will disable journaling on the microSD ext4 partition. You do not have to do this manually! Flash these after flashing the ROM.
CyanogenMOD 10.1 - beta2: http://d-h.st/rOe (Based on 4-2 nightly and may behave unexpectedly on other builds)
CleanROM 3.2.2: http://d-h.st/sCa - WORKS WITH CleanROM 3.3!
clemsynTFUniversalCyano650GPUFsyncver3: http://d-h.st/duw
ClemsynTFUniversalStock: http://d-h.st/IBm
clemsynTFUniversal650GPUver7 (Stock/CleanROM): http://d-h.st/S4k

Recovery
I made a flashable zip to help the recovery console understand our modification. By default, if you go into recovery and do a factory reset, it is formatting the /data partition on the internal storage. The issue same applies to nandroids. We may be using the second partition of our microSD card for /data, but the recovery does not know this. It will look to the internal /data partition during backup and restores.
This zip does not make any modifications to your tablet or copy any files. It simply updates your recovery mount points. The changes are temporary and are lost during the next reboot. You will need to flash it each time you boot into recovery.
After flashing this zip you will be able to:
1) Wipe data / Factory reset. The /data partition on the microSD will be wiped
2) Backup and restore nandroids. The /data partition on the microSD will be backed up or restored.
3) Choose "Flash zip from internal sdcard" and browse the files on the internal storage
4) Access and flash zips from the microSD storage. Choose "Flash zip from internal sdcard" and notice the !microSD folder at the top. This is a symlink that will kick you over to the microSD storage. This !microSD folder appears on your internal storage after you flash this zip for the first time. It remains unless you delete it. Even so, next time you enter recovery this !microSD symlink will not go anywhere until you flash this zip.
Please report your experience with this.
http://d-h.st/pPe

This one too.

So this is basically flashable on CleanRom 2.3 right? Only thing wrong is that it doesn't show up in windows over USB? I can live with that as long as apps can read it in the Android OS itself.

can I use flash this on cleanrom 2.3 to diasable journalling on my ext4 partition

Diogenes5 said:
So this is basically flashable on CleanRom 2.3 right? Only thing wrong is that it doesn't show up in windows over USB? I can live with that as long as apps can read it in the Android OS itself.
Click to expand...
Click to collapse
Nope. This has changes to framework-res.apk which is ROM specific. I will post a CleanROM 2.3 version in a few minutes for you guys.

Thanks - Appreciate your hard work
---------- Post added at 08:46 PM ---------- Previous post was at 08:37 PM ----------
wow that was fast-thanks
---------- Post added at 08:58 PM ---------- Previous post was at 08:46 PM ----------
i was getting 6000 with clemsyn -I got low 5000's with this new mod

clownberg said:
i was getting 6000 with clemsyn -I got low 5000's with this new mod
Click to expand...
Click to collapse
This is not clemsyn's kernel, this is the stock CleanROM 2.3 kernel. I will mod clemsyn's latest kernel and post it for you.

Mistar Muffin said:
This is not clemsyn's kernel, this is the stock CleanROM 2.3 kernel. I will mod clemsyn's latest kernel and post it for you.
Click to expand...
Click to collapse
Unable to have it work with cleanrom. Boot loop

titou00075 said:
Unable to have it work with cleanrom. Boot loop
Click to expand...
Click to collapse
Use recovery to wipe the /cache partition. Due to the changes in framework-res.apk this may be necessary if you aren't coming from a completely clean install of a ROM.
I just booted to recovery and wiped my microSD /data partition. I also wiped /cache and /system. I installed CleanROM 2.3 and in the same recovery session I flashed the clemsynTF700ver22GPU650VC-data2sd kernel and it booted right up.

May be a stupid question but do you still need TWO primary partitions on the SD card (i.e., first is FAT32 while second is Ext4 and used by the mod)? If this isn't necessary or not possible, should the recovery (i.e., installation) files be placed in internal storage?
Forgot to mention I'm using Windows 7 MTP and CleanROM 2.3

Mistar Muffin said:
Use recovery to wipe the /cache partition. Due to the changes in framework-res.apk this may be necessary if you aren't coming from a completely clean install of a ROM.
I just booted to recovery and wiped my microSD /data partition. I also wiped /cache and /system. I installed CleanROM 2.3 and in the same recovery session I flashed the clemsynTF700ver22GPU650VC-data2sd kernel and it booted right up.
Click to expand...
Click to collapse
Ok thanks. Will do:thumbup:

Your Awesome, Thank you!

cheers
Thanks Gonna try this.
done the work install all three files in the OP, however it is taking a long time to boot....Can someone give me an idea as to how long this normally take onn first bootup after a fresh install?
please advise
tyfoxx

Couldyou make one for blackbean? i tried thecm 1029,but it doesnt boot. Would greatly appreciate it.

Sweet
I just ran every shortcut I could think of:
I used Mini partition tool to reduce reduce my 32 gig fat down to 16 gigs & then created a 16 gig ext4 partition.
Wiped everything in twrp and re flashed Clean 2.3 then the new zip.
All I can say is WOW.

Restored everything. Works great no more stalls and stable so far. Hope it stays this way. Now to focus on battery life.
Sent from my HTC Ruby using xda app-developers app

Diogenes5 said:
Restored everything. Works great no more stalls and stable so far. Hope it stays this way. Now to focus on battery life.
Sent from my HTC Ruby using xda app-developers app
Click to expand...
Click to collapse
Glad it's working! I've prepared a little treat for everyone to make our recovery lives a little easier. Need to test a few more things before I post!

I'm running CleanROM 2.3 and ClemsynTF700ver22GPU650VC (awesome combo, btw). If I want to use this MOD, should I need to flash first CleanROM-2.3-data2sd.zip and later ClemsynTF700ver22GPU650VC-data2sd.zip, right? Of course, also, formating my microSD using ext4.

Awesome work here Mistar!!!! Thank you so very much for this!!! Gonna replace my SanDisk 32gb Class 4 card with a SanDisk 64gb Class 10 before I run this on CleanRom. I'm super excited about this mod!!!!!! Thanks a million!!!!!!
Sent from my EVO 4G LTE using xda premium

[Q] Help on SDCARD partition for data2sd

I am new with data2sd.
I read from another discussion that in order to use data2sd on my TF700 tablet I have to create two partitions on my external SDcard (partition1 = FAT32, while the secod partition is ESXT4). I am using Samsung SDXC 64GB class 10 card. For some reason I could not format the EXT4 successfully. I have tried MiniTool partition and GPart USB and Disk boot.
With latest GPart I receive error "Input/Output errro during write on /dev/mmcblk0" with header message "Libpart Bug Found!".
I tried to leave the first partition empty then format the 2nd partition EST4 as well but it made no different.
Finally I ask a frined to format the card from his Apple laptop and he said he did it. However I am still unable to detect the 2nd paritition.
This time the Gpart softare has shown a Warning message as shown in the attachment.
Can anyone help me? Thanks

ciscozest said:
I am new with data2sd.
I read from another discussion that in order to use data2sd on my TF700 tablet I have to create two partitions on my external SDcard (partition1 = FAT32, while the secod partition is ESXT4). I am using Samsung SDXC 64GB class 10 card. For some reason I could not format the EXT4 successfully. I have tried MiniTool partition and GPart USB and Disk boot.
With latest GPart I receive error "Input/Output errro during write on /dev/mmcblk0" with header message "Libpart Bug Found!".
I tried to leave the first partition empty then format the 2nd partition EST4 as well but it made no different.
Finally I ask a frined to format the card from his Apple laptop and he said he did it. However I am still unable to detect the 2nd paritition.
This time the Gpart softare has shown a Warning message as shown in the attachment.
Can anyone help me? Thanks
Click to expand...
Click to collapse
I have heard that MiniTool has corrupted a few users SD when they use it. If it is still new, you can get the exchange from where you bought it.
Otherwise, you could try this to see if it works out for you.
You can use a card reader and plug it in your window pc. You need to reformat your SD with extfat. If everything works, then you can use gparted to format two partions, fat32/ext4, to use for data2sd.
If it is still not working, you can go to the SD card associate website and download the format4.0 tool. You need to install the software on your pc and use it to format your SD. In the pull down option, you need to select the "overwrite" option in the menu and hope that they can repartition your allocation table in order for your SD to work again. Good luck... :fingers-crossed:

Finally made EXT4 partition successfully but still fail on DATA2SD
I finally able to format my second partition with EXT4 using TWRP software. However my TF700 tablet is unable to mount the EXT4 or read it under storage menu. I read another forum saying the SDXC UHS-1 card cannot be used for my tablet. Is this true?
Can anyone confirm this? Thank you

EXT4 success but DATA2SD is still failing
Hi, thanks for your comment and advice.
I finally able to format my second partition with EXT4 using TWRP software. However my TF700 tablet is unable to mount the EXT4 or read it under storage menu. I read another forum saying the SDXC UHS-1 card cannot be used for my tablet. Is this true?
Can anyone confirm this? Thank you
Note: When flashing using that4 DATA2Sd kernel, the screen hung at Asus logo. Tried using Hunsbuah kernel too but no luck. I am using CROMI-X 4.7.0.

Is it a micro SD you are trying to use? The full sized SD in the dock won't work for data2sd.
You must use gparted to format the card. There is no other way.

Take the microSD out and check if it boots normally. You may have corrupted your card with Mini Tool...
Sent from my ASUS Transformer Pad TF700T using Tapatalk 4

ciscozest said:
Hi, thanks for your comment and advice.
I finally able to format my second partition with EXT4 using TWRP software. However my TF700 tablet is unable to mount the EXT4 or read it under storage menu. I read another forum saying the SDXC UHS-1 card cannot be used for my tablet. Is this true?
Can anyone confirm this? Thank you
Note: When flashing using that4 DATA2Sd kernel, the screen hung at Asus logo. Tried using Hunsbuah kernel too but no luck. I am using CROMI-X 4.7.0.
Click to expand...
Click to collapse
I am currently using an exactly the same SD as your. It is working for me. Something may be wrong your end..

Got the partition working and NOW is the mounting problem...
Finally i got my second partition working. The formatting worked after I recreated the partition table using gPART.
Now my ASUS TF700 could not mount the second partition of my Samsung card. It only read th first primary partition. After flashing ROM with CROMI-X 5.0 and select that_4 kernal (DATA2SD), it loop at initial Asus boot logo and then reboot repeatly and endlessly. Is there any step I am missing here? Thanks for any help here.
LetMeKnow said:
I am currently using an exactly the same SD as your. It is working for me. Something may be wrong your end..
Click to expand...
Click to collapse

am using MicroSDXC UHS-1 card 64GB
Hi,
I am using Samsung 64GB microSDXC UHS-1 card and I inserted it into the tablet directly. The tablet could read first FAT32 partition but not the second one (EXT4). I could see the second partition using Mini Partition Tool as well as GPART though.
I am thinking hard now on how to let my TF700 read the EXT4 second partition on my card. ANy idea? Thank you
sbdags said:
Is it a micro SD you are trying to use? The full sized SD in the dock won't work for data2sd.
You must use gparted to format the card. There is no other way.
Click to expand...
Click to collapse

Hi,
I've the same problem. I tried everything but my TF700 don't like the ext-partition.
SD-Ext Size : -1 MB on the first page of the installer is normal?

flatlenin said:
Hi,
I've the same problem. I tried everything but my TF700 don't like the ext-partition.
SD-Ext Size : -1 MB on the first page of the installer is normal?
Click to expand...
Click to collapse
Can you tell us all the steps and what tools did you use during the data2sd process? It is helpful with more details.

LetMeKnow said:
Can you tell us all the steps and what tools did you use during the data2sd process? It is helpful with more details.
Click to expand...
Click to collapse
I try
1. I bought a SanDisk Extreme with 32 GB
2. I have used gparted to partion my SD Card. First with 4 GB Fat32. Second with Ext4. Both are primary.
3. I flashed the new TRWP 2.6.1.0 on my Tab.
4. Reboot the recovery an flash mount-data2sd.zip
5. flashed the Cromi 5.0.1 odex and use _thats data2sd Kernel
6. I flashed data2sd-jb42-intmedia-that1.zip
My Tab runs with this but i can't use the Ext4 form my SD-Card.
Pics go to the internal storage.
regards Erik

flatlenin said:
6. I flashed data2sd-jb42-intmedia-that1.zip
My Tab runs with this but i can't use the Ext4 form my SD-Card.
Pics go to the internal storage.
Click to expand...
Click to collapse
That's what "intmedia" does.
The ext4 partition should contain your apps and app data.

_that said:
That's what "intmedia" does.
The ext4 partition should contain your apps and app data.
Click to expand...
Click to collapse
Thanks _that :good:
But one problem remains:
Wipe cache and davilik doesn't work correctly. After the wipe my tab don't update the apps during the boot of the rom.

flatlenin said:
Thanks _that :good:
But one problem remains:
Wipe cache and davilik doesn't work correctly. After the wipe my tab don't update the apps during the boot of the rom.
Click to expand...
Click to collapse
You have to use the mount-data2sd.zip from the data2sd thread to temporarily switch your recovery to use /data on the microSD card.

LetMeKnow said:
I am currently using an exactly the same SD as your. It is working for me. Something may be wrong your end..
Click to expand...
Click to collapse
Hi, do you mind giving me tips on how to solve my problem? I am thinking if my tablet could not read the 2nd partititon on extenral MicroSD card, I will not get DATA2SD works no matter how. Please correct me if I am wrong. I have also installed mount-data2sd.zip from TWRP 2.6 and then flash Cromi 5.0 ROM using built-in DATA2SD kernel by that_4. the outcome is still negative.
Thanks

ciscozest said:
Hi, do you mind giving me tips on how to solve my problem? I am thinking if my tablet could not read the 2nd partititon on extenral MicroSD card, I will not get DATA2SD works no matter how. Please correct me if I am wrong. I have also installed mount-data2sd.zip from TWRP 2.6 and then flash Cromi 5.0 ROM using built-in DATA2SD kernel by that_4. the outcome is still negative.
Thanks
Click to expand...
Click to collapse
May I ask how do you try to read your ext4 SD? Did you flash _that's data2sd zip file? I don't recall that I have ever gotten any problems with the exactly SD that you have...
Edit: If you use _that data2sd kernel, then you don't need to flash _that's data2sd zip file.. However, it is not a bad idea to flash it again to see how your tablet responses..

LetMeKnow said:
May I ask how do you try to read your ext4 SD? Did you flash _that's data2sd zip file? I don't recall that I have ever gotten any problems with the exactly SD that you have...
Edit: If you use _that data2sd kernel, then you don't need to flash _that's data2sd zip file.. However, it is not a bad idea to flash it again to see how your tablet responses..
Click to expand...
Click to collapse
Hi, the way I checked is when I goto storage option, i could only see the internal and first partition on my external SDcard so I assume the 2nd partition is not recognized? Also using ES Explorer, I clicked "MicroSD" option and it only showed the content in the first SDcard partition.
These are the steps I did:
1- From TWRP 2.6.0, I flash a separate mount-data2sd.zip
2 - still in TWRP, once the above flashing complete, I flash CROMI-X 5.0 deodex and select that_4 data2sd kernel
3 - wipe cache and dalvik cache
4 - reboot system
5 - I got message there is no OS in the internal parition/disk do you want to continue? Since I got no choice, I clicked yes then the screen hang at initial Asus logo screen.
Luckily I have TWRP backup prior so I managed to restore my complete /data, /system and /boot or recovery.
Plz help and advice my misunderstanding or missing steps here. Thanks

ciscozest said:
Hi, the way I checked is when I goto storage option, i could only see the internal and first partition on my external SDcard so I assume the 2nd partition is not recognized? Also using ES Explorer, I clicked "MicroSD" option and it only showed the content in the first SDcard partition.
These are the steps I did:
1- From TWRP 2.6.0, I flash a separate mount-data2sd.zip
2 - still in TWRP, once the above flashing complete, I flash CROMI-X 5.0 deodex and select that_4 data2sd kernel
3 - wipe cache and dalvik cache
4 - reboot system
5 - I got message there is no OS in the internal parition/disk do you want to continue? Since I got no choice, I clicked yes then the screen hang at initial Asus logo screen.
Luckily I have TWRP backup prior so I managed to restore my complete /data, /system and /boot or recovery.
Plz help and advice my misunderstanding or missing steps here. Thanks
Click to expand...
Click to collapse
First, can you tell me what rom and kernel you are running? I don't think that you can see your ext4 on your external sd unless you are using data2sd.. For now, you can use gparted to see if there is a second partition with ext4.. I need to understand your system a little more in order to help you set up data2sd..

LetMeKnow said:
First, can you tell me what rom and kernel you are running? I don't think that you can see your ext4 on your external sd unless you are using data2sd.. For now, you can use gparted to see if there is a second partition with ext4.. I need to understand your system a little more in order to help you set up data2sd..
Click to expand...
Click to collapse
hi, I am using Cromi-X 5.0, TWRP 2.6.0, Samsung SDXC UHS-1 class 10 64GB MicroSD card. No keyboard dock used. Thanks

[Q] Cromi-X and data2sd

Hi, I could use some pointers on how to get data2sd on to my tablet.
I recently flashed to my first ROM, Cromi-X 5.0.3, and it seems to work well. Now I would like to apply data2sd in addition - maybe it was stupid, I guess it would have been smoother to apply that in the same move.
Anyways, I have set up a high speed micro-SD card now, formatted according to the instructions.
Now - I am a bit confused about flashing with a kernel - can I pick a kernel from the downloaded Cromi-X 5.0.3 zip-file, and flash that without any major wiping? If not, which kernel should I pick then... ?
Thanks!

frax said:
Hi, I could use some pointers on how to get data2sd on to my tablet.
I recently flashed to my first ROM, Cromi-X 5.0.3, and it seems to work well. Now I would like to apply data2sd in addition - maybe it was stupid, I guess it would have been smoother to apply that in the same move.
Anyways, I have set up a high speed micro-SD card now, formatted according to the instructions.
Now - I am a bit confused about flashing with a kernel - can I pick a kernel from the downloaded Cromi-X 5.0.3 zip-file, and flash that without any major wiping? If not, which kernel should I pick then... ?
Thanks!
Click to expand...
Click to collapse
You need to partition your sd card into fat32 and ext4 as per the instructions here using gparted. Do not use minitool please:
http://forum.xda-developers.com/showthread.php?t=1962507
Then reflash the rom picking a data2sd option.

sbdags said:
You need to partition your sd card into fat32 and ext4 as per the instructions here using gparted. Do not use minitool please:
http://forum.xda-developers.com/showthread.php?t=1962507
Then reflash the rom picking a data2sd option.
Click to expand...
Click to collapse
Yup, I have done that - but I can't see (in the ES file explorer) the partitions that should be in place, and in AndroBench, I don't get the speeds I should be seeing...

[Q] F2FS or Data2SD?

Both? Neither? One or the other?
Going to reload my TF700, probably with CROMBi-kk to try it out. Looking to optimize web browsing/facebook/gmail etc performance. Currently on CROMi-X 5.4.

BethyM said:
Both? Neither? One or the other?
Going to reload my TF700, probably with CROMBi-kk to try it out. Looking to optimize web browsing/facebook/gmail etc performance. Currently on CROMi-X 5.4.
Click to expand...
Click to collapse
Both = very fast

Very Fast would be good!! Format the internal memory as F2FS also, or just the sdcard?

BethyM said:
Very Fast would be good!! Format the internal memory as F2FS also, or just the sdcard?
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Click to collapse
If you use data2sd then internal /data is not used.
You only need to format mmcblk1p2 to f2fs on the card for data2sd.

sbdags said:
Both = very fast
Click to expand...
Click to collapse
faster than rom2sd? ive found it to be quick at times, then mighty slow at others. thanks!
if f2fs+data2sd is the faster option, how should i go about getting rid of the sd installation, just take it out and install like normal on the tablet?

ishamm said:
faster than rom2sd? ive found it to be quick at times, then mighty slow at others. thanks!
if f2fs+data2sd is the faster option, how should i go about getting rid of the sd installation, just take it out and install like normal on the tablet?
Click to expand...
Click to collapse
I've noticed no difference between data2sd and rom2sd but f2fs allows better use of the tablet when things are downloading in the background for example.

sbdags said:
I've noticed no difference between data2sd and rom2sd but f2fs allows better use of the tablet when things are downloading in the background for example.
Click to expand...
Click to collapse
thanks, is there a guide anywhere for moving from rom2sd to f2fs and data2sd?

ishamm said:
thanks, is there a guide anywhere for moving from rom2sd to f2fs and data2sd?
Click to expand...
Click to collapse
Easiest way is install the latest TWRP 2.7.1.1 which has format options now for both ext4 (takes 90 mins) and f2fs (takes seconds).
You'll obviously lose everything if you format /data as f2fs so have a backup if you want to go back.
If you are using data2sd or rom2sd just remember to use the data2sd1.zip or rom2sd1.zip first to switch TWRP over to your external partitions otherwise you will be formatting internal.

sbdags said:
Easiest way is install the latest TWRP 2.7.1.1 which has format options now for both ext4 (takes 90 mins) and f2fs (takes seconds).
You'll obviously lose everything if you format /data as f2fs so have a backup if you want to go back.
If you are using data2sd or rom2sd just remember to use the data2sd1.zip or rom2sd1.zip first to switch TWRP over to your external partitions otherwise you will be formatting internal.
Click to expand...
Click to collapse
So i boot into twrp, and format which partitions? the external sd card to extf4 and the internal to f2fs? sorry having trouble getting my head around this!

ishamm said:
So i boot into twrp, and format which partitions? the external sd card to extf4 and the internal to f2fs? sorry having trouble getting my head around this!
Click to expand...
Click to collapse
If you use data2sd (or rom2sd for that matter) you are not using the internal data partition for daily operations other than storage maybe. So you can leave it alone.
First step is to backup any data from the rom2sd data partition you want to keep.
Then you have to repartition the card. For data2sd you have to have 2 partitions (not 3 as in rom2sd): one fat32, one ext4 or f2fs. Do that in Gparted and while you're at it, you can format the future data partition to f2fs.
Then flash the rom with the data2sd option and _that v10 kernel.
I would also recommend getting TWRP 2.7.1

gparted?
so do i need to use gparted to partition my sd card or can it all be done with twrp and your crombi rom?

relaps said:
so do i need to use gparted to partition my sd card or can it all be done with twrp and your crombi rom?
Click to expand...
Click to collapse
You must use gparted There is no other way.

Thank you. I'm doing my best to read through the last 100 pages of the q&a and the Rom page.

relaps said:
Thank you. I'm doing my best to read through the last 100 pages of the q&a and the Rom page.
Click to expand...
Click to collapse
Go to the crombi-kk thread in the dev section and see post 2 - the instructions are there on how to do it
Once you partition it the installer will then do everything else for you

Thank you I did read that one, very straight forward. I am having trouble finding a zip containing twrp 2.7.1.1 ... I currently have 2.6.3-that3 but twrp manager keeps crashing on me and does not Let me choose a device in order to upgrade.

relaps said:
Thank you I did read that one, very straight forward. I am having trouble finding a zip containing twrp 2.7.1.1
Click to expand...
Click to collapse
Download the blob from the TWRP site and install it via fastboot.

I got the file from techerrata with md5, is this a reliable source? Please forgive my newb green-ness

relaps said:
I got the file from techerrata with md5, is this a reliable source? Please forgive my newb green-ness
Click to expand...
Click to collapse
Go to this link: http://teamw.in/project/twrp2/105
Then click the link: download latest .blob file from here under the Download Recovery Image / Fastboot Method header
Scroll down to the last version 2.7.1.1
Profit [emoji57]