yashsingh1/xdaforums huggingface dataset:
[Asus Transformer TF700] buhohitr:
Sorry about miss-read your statement. I believe some issue with Androbech app. Just try any SDcard test apps and you should got the correct results.
[Asus Transformer TF700] crazyboyxx:
I think androbench might be correct, because I tried to download a large size apps, the downloading speed is lower than than using original I/O.

P.S. in same internet
[Asus Transformer TF700] Pretoriano80:
Download Solid Explorer from Google Play and use it to transfer a movie file or something from Internal Storage --> MicroSD,you will see that Sequential Write is not so bad . ;)
[Asus Transformer TF700] fordwolden:
May I ask what kernel you are using? I'm having the same issue with my Prime, without Data2SD I'm getting around 3mb/s which is real bad. All apps report the same. So I think the problem might be related to something else than the MOD.
[Asus Transformer TF700] jodvova:
How did the experiment go ?

I received my extreme pro today and so far I've been unlucky to make it work stable.

I'm experiencing constant reboots. Also, wifi doesn't seem to work.
[Asus Transformer TF700] buhohitr:
Here is my JB .18 factory stock reading with Androbench: seq write=6.87, 7.35, 7.21 before I implemented data2SD. After data2sd seq write=1.35

edit: misstyped.
[Asus Transformer TF700] crazyboyxx:
extreme pro doesn't work with TF700T

---------- Post added at 11:46 AM ---------- Previous post was at 11:37 AM ----------

I think Data2SD might only work well with Sandisk Ultra SDXC 64GB
[Asus Transformer TF700] fordwolden:
Haven't recieved mine yet. Having a hard time seeing the card being at fault for wifi issues though.

Have you tried partitioning with ext2 on second partition?
[Asus Transformer TF700] jodvova:
So,

I did two following things and I can confirm that Sandisk Extreme Pro actually works fine with data2sd mod.

1. I followed the instruction from this post, 1-by-1, except that I do have CWM installed, not TWRP.

http://xdaforums.com/showthread.php?p=33570555

2. As fordwolden suggested I did format 2nd partion of MicroSD card with ext2.

I don't experience constant reboots anymore. The tablet seems to be stable, I can do basic things on it. Although, I'm still testing it.

One thing to note, I did use Enhanced version of data2sd mod.

I will post benchmark results later on.

---------- Post added at 10:59 PM ---------- Previous post was at 10:58 PM ----------

It does work with Sandisk Extreme Pro.

I'm writing on tablet running on this card right now.
[Asus Transformer TF700] crazyboyxx:
How is the score from Androbench
[Asus Transformer TF700] jodvova:
Got the following results.

How does this compare to a previous generation of Sandisk card ? I don't really know where it stands.
[Asus Transformer TF700] jodvova:
So, extreme pro gives much better seq. write results and slightly better random writes/reads.
[Asus Transformer TF700] crazyboyxx:
Thats a huge better than Ultra SDHC

---------- Post added at 04:32 PM ---------- Previous post was at 04:27 PM ----------

Sandisk Extreme Pro MicroSD 8GB, around $28 USD on Amazon Prime, and $54 USD for 16GB

so expensive
[Asus Transformer TF700] jodvova:
Actually forget what I've just said.

It worked for about 10 minutes, after that I got a sudden reboot and immediately after that it had entered a boot loop.

I tried to repeat the flash operation couple of times, but nothing works. It just boot loops.
[Asus Transformer TF700] cctaylor410:
Did you happen to use minitool software to format your card? If so try using gparted. Its pretty easy to get it running on a live usb if you dont run linux. I was having the same bootloop issue as you until i tried gparted. Other people having partition issues with their cards or bootloops should give it a shot.
[Asus Transformer TF700] jodvova:
I did use gparted to format the flash card.
[Asus Transformer TF700] buhohitr:
Did you also try with ext4 instead of ext2?
[Asus Transformer TF700] fordwolden:
I believe he tried that first. It might be that the extreme speeds makes it dependant of journaling. It might be prone

to data loss/corruption with the speeds it's running. Just a thought.

Did you also try a ROM that's got journaling by default, so you could keep the journaling on your card?
[Asus Transformer TF700] buhohitr:
fordwolden, what is the easiest way to re enable journaling? reflash the original Clemsy/Cleanrom kernel or through adb? Thanks.
[Asus Transformer TF700] _that:
Sorry, that's BS.

The bootloop can be the result of filesystem corruption due to the previous unplanned reboot. To repair this, it is best to boot into recovery, make sure that /data is not mounted, and then run fsck on the partition. Alternatively, turn of the tablet, pop the microSD into a PC running Linux and run fsck there.

---------- Post added at 10:27 AM ---------- Previous post was at 10:24 AM ----------

Make sure the partition is not mounted (e.g. run in recovery), then run (via adb) tune2fs -j /dev/block/mmcblkXpY

(replace X and Y with the actual partition you want to modify)
[Asus Transformer TF700] jodvova:
I did try ext4 and I wasn't able to pass android setup stage. I experienced constant and sudden reboots and couldn't connect to wifi. I tried the whole flash procedure with ext4 couple of times and always had same problems.

With ext2 it does work but it's not stable. Yesterday I was able to restore all my apps, even managed to run the benchmark. But after 10-15mins tablet just suddenly rebooted and had entered a bootloop. I wasn't able to fix the bootloop by wiping/flashing (I did use mount-data2sd). Only after I reformatted 2nd partition in gparted with subsequent wipe/flash it had started to work and I was able to start setup process.

After that it did work 5mins before the same thing happened again, i.e. reboot and bootloop.

fordwolden and _that, I also suspect that a bootloop is somehow connected with a corruption of ext2 after a sudden reboot. I haven't tried to run fsck, but will try that today.

However, I don't have an explanation for reboots. My tablet was stable without data2sd mod under cleanrom and OC kernel. Maybe I should dump OC kernel and try it again.
[Asus Transformer TF700] Pretoriano80:
I've had a bootloop issue like yours with my Sandisk 32GB Ultra card and happened when i was transferring files from internal storage to MicroSD. Gparted didn't found any issue with the file systems but used another software and it seems that then issue was the partitioning. Try this with Gparted:

1) Delete all partitions

2) Create first partition but dont use the "MiB" option, use the other option available (it's called "cylinders" i think) and apply the changes

3) Now create your ext4 or ext2 partition using the same options like the first partition

For me this solved the issue, didn't had another bootloop in two days, maybe it will fix your issue too.
[Asus Transformer TF700] jodvova:
Note: I'm using Extreme pro 16gb card, not Ultra.
[Asus Transformer TF700] _that:
Just a remark: cylinder alignment is usually bad for performance on flash memory, since filesystem blocks are not aligned with flash blocks. So this was most likely not the fix for your problem, recreating the filesystem was.
[Asus Transformer TF700] Pretoriano80:
Good to know,but i used that option anyway and no performance issue here.
[Asus Transformer TF700] buhohitr:
Here is the disable journaling command I used;

tune2fs -O ^has_journal -c 1 -i 1d -m 0 /dev/block/mmcblk1p2

and here is your enable journaling command that I'm going to use:

tune2fs -j /dev/block/mmc0blk1p2

Can you explain to me the "zero" in this mmc0blk1p2?

Thanks
[Asus Transformer TF700] _that:
whoops, that was a typo, sorry - mmcblk1p2 is correct. mmc0blk... does not even exist.

btw, your original command does a bit more than only disable the journal:

-O ^has_journal obviously turns of journaling.

-c 1 forces a filesystem check at every mount (= reboot) - maybe not a bad idea with a disabled journal to catch corruption early

-i 1d is more or less the same - check every day (if filesystem is mounted, which usually means reboot)

-m 0 releases any blocks reserved for root for general use

-j creates a journal. I believe you could also use -O has_journal, but -j is shorter and more common.
[Asus Transformer TF700] fordwolden:
:) Yeah, as I stated in the post it was just a thought. I can't really see a reason the extreme pro card

is causing issues for everyone. I'm getting mine next week, do you have a theory on what's causing it?
[Asus Transformer TF700] buhohitr:
+1 thanks again for the details bro!
[Asus Transformer TF700] jodvova:
Does anyone know how to access tune2fs if I have CWM installed ?

Obviously there is no option to connect adb in recovery. And if I run Terminal Emulator app, "su" to root, tune2fs binary doesn't exist in the system.

anyone ?
[Asus Transformer TF700] buhohitr:
connect your usb, boot into cwm on your device, then use your pc and execute:

adb shell hit enter, now try to use your tune2fs command
[Asus Transformer TF700] _that:
...which is good. :) The man page for tune2fs says:

Never use tune2fs on a read/write mounted filesystem to change parameters!

So don't even try to do it in Android, only do it from the recovery while /data is unmounted. Usually the recovery should give you adb root access, at least TWRP does.
[Asus Transformer TF700] CeeJayII:
I can't get adb to work in TWRP for the life of me. Every time I open command prompt on PC from adb location, and type adb shell, I get this weird message line of text. ~ # "(left facing arrow)"[6n. It looks like ~ # <-[6n. I have asus drivers installed and adb works fine from the desktop. Anyone have any ideas what could be going wrong? I have attached a screenshot of the message.
[Asus Transformer TF700] buhohitr:
It is normal, just ignore them and continue type in your command
[Asus Transformer TF700] crazyboyxx:
ignore that message and copy and paste (right-click on the cmd to paste, Ctrl+V doesn't work) the code you want to type, that's the easiest way to input the script correctly
[Asus Transformer TF700] cyiam40:
Boot Loop?!!

:crying: Reverted back to non Data 2 S/D setup due to unrecoverable bootloop that occurred today. Not sure what happened, had been using it for several days with excellent results. Had it engaged with the dock for several hours and went to wake it up and found it in bootloop.
[Asus Transformer TF700] Rickymax:
Wipe cache fix for me randoms bootloops. Have you tried it?

Enviado desde mi Galaxy Nexus
[Asus Transformer TF700] jodvova:
Good point !

Thanks.

---------- Post added at 02:30 PM ---------- Previous post was at 02:29 PM ----------

Did you format your card with gparted ?

You can also try running e2fsck on the microsd data partion. The highly likely cause of a bootloop is a corrupt filesystem (assuming you have turned off journaling).

---------- Post added at 03:28 PM ---------- Previous post was at 02:30 PM ----------

Another question,

how can I make the tablet be visible for adb in recovery ? I'm currently on TWRP 2.3.1.0

ADB sees a tablet when it's running Android and I can open up a shell. But once I reboot to a recovery: adb devices gives no devices.

As I understand I need to install some sort of driver for Windows.

I tried Universal Naked Driver but it didn't work.

I'm running Win8 Pro.
[Asus Transformer TF700] poemadevil:
Just bought a new Samsung MicroSD card, the SAMSUNG high-speed 64GB UHS-I CLASS10 SDXC. I know the Extreme Pro isn't working, hope this one does (max 70mb read)
[Asus Transformer TF700] fordwolden:
Still waiting for my extreme pro. Cool to see what scores you get with the samsung card though. Sandisk has been topdog lately.
[Asus Transformer TF700] buhohitr:
Hey jodvova, when you're testing the extreme pro 16gb card, by any chance you have journaling disabled, and that maybe the cause of bootloop?
[Asus Transformer TF700] crazyboyxx:
How is your extreme pro, does it work?
[Asus Transformer TF700] buhohitr:
I doubt it's going to work. I tried 2 ext pro, one is 8gb and one is 16gb, both last under 10 min and went into bootloop. Reformat, wipe everything and do a fresh stock and clemsyn kernel setup ....same thing. I gave up!
[Asus Transformer TF700] dobranszky:
hi

a class 4 microsd is ok for data2sd?

is there improvement with this kind of sd?

or should i buy a class 6 or10 ?

thanks
[Asus Transformer TF700] fordwolden:
That depends on the card, some class 4 and 6 cards have great Random Write speeds. The best seems to be the uhs-1 class 10 though!
[Asus Transformer TF700] jimmynoos:
I'v tried this like 15 times from scratch, but keep getting the "encryption unssuccesful" message on boot. I used GParted to parition fat32 and the remaining both primary and second as active. reboot to recovery flash the rom clean install, then flash the data2sd zip, reboot, and same thing everytime.

any help would be appreciated... I'v tried 2 Sandisk 32 gb class 10 cards now. neither worked.
[Asus Transformer TF700] fordwolden:
First partition is fat32 and second is ext4 or ext2, both set to primary? That should be correct. The "active" partition I don't think is relevant. Could be related to journaling, CleanRom by Scott had journaling disabled by default. Some Roms have some haven't, maybe the data2sd zip you are using disables it for you. I would check that.

I've only just picked up the Infinity again after a break and installed CROMI 3.0, initially it seems to me sbdags and clemsyn magically made this mod redundant. Impressive.
[Asus Transformer TF700] jimmynoos:
I finally go this to work! It was me being completely stupid and using a sdcard reader that wasn't working properly. Bought a usb micro reader and it worked on the first try. thanks for the help
[Asus Transformer TF700] llcooljayce:
Hey guys. I have had data2sd installed for a couple of days and it was working fine. For some reason tonight the device went into a boot loop. I get the Asus screen that says that the device is unlocked and then over to the spinning progress circle... then it reboots and we start the cycle again.

Could this be because journaling is disabled? If so, how can I enable it or even revert back to data being written and read to the internal memory?

TIA
[Asus Transformer TF700] _that:
Looks like the filesystem on your card is damaged - run fsck from a Linux box or from the recovery to fix it.

Flash a stock kernel (or another non-data2sd kernel), e.g. with sbdags' kernel installer.
[Asus Transformer TF700] llcooljayce:
Could you please provide a step by step on how to run fsck from recovery? Thank!
[Asus Transformer TF700] llcooljayce:
Anyone?
[Asus Transformer TF700] _that:
- Power off your tablet

- Connect via USB to your PC

- Start tablet into recovery

- On PC, run: adb shell

- In the shell, run: e2fsck /dev/block/mmcblk1p2

(IIRC :))
[Asus Transformer TF700] llcooljayce:
For some reason my computer does not recognize the TF700 when in recovery so I ran the command by using TWRP:

Advanced -> Terminal Command -> Dev -> Block -> Select Folder -> e2fsck /dev/block/mmcblk1p2

I get the the following result:

When I reboot, I go back into the boot loop.

Would flashing CleanROM Inheritance work to revert back to a non Data2SD setup?

If so, is there anything I need to worry about?
[Asus Transformer TF700] buhohitr:
Boot into TWRP and just flash a none data2sd stock kernel OR a none data2sd clemsync kernel or simply just do a twrp restore (should only take about 2-3 min).
[Asus Transformer TF700] _that:
So you should fix that first.

e2fsck says it needs a terminal for interactive repairs. So you have two options: add a command line option for automatic repair ("-p"), or run e2fsck from a real terminal via adb.

No surprise, since you didn't fix the filesystem.

Remember my first answer to you:

Flash a stock kernel (or another non-data2sd kernel), e.g. with sbdags' kernel installer.
[Asus Transformer TF700] llcooljayce:
The restore worked! Thanks again buhohitr! You are absolutely amazing!
[Asus Transformer TF700] buhohitr:
Hahaha amazing is my middle name,,,,wait until you see my last name!! LOL.

Anyway, you could try to mountdata2sd and do a restore then flash cromi_data2sd again, once boot you just re_enable fsync. I think fsync is the cause of your corruption. Remember, you now know how to flip flop pretty quickly between the regular and data2sd so you should take sometime and try to figure out why? that if you would like to use data2sd, just a suggestion.
[Asus Transformer TF700] timeline62x:
Something not working?

I just ran an androbench test for the micro storage performance and i ended up with .2mb/s speeds. I already flashed data2sd with cleanrom and i still notice much lag. Can someone explain if i have done something wrong?

I flashed cleanrom and then its according data2sd zip file. Is there anythign else?
[Asus Transformer TF700] buhohitr:
you probably need to disable fsync!
[Asus Transformer TF700] timeline62x:
Whats the difference between this mod and the enhanced version in the other thread?
[Asus Transformer TF700] sloanster:
Uh, huh, uh, huh, What?:rolleyes:

Should I see the partition in [settings][storage][microsd]because all I see is the fat32 #1 partition ...not the ext4 partition #2any help would be appreciated!
[Asus Transformer TF700] buhohitr:
This one is way outdated, you should be using the enhanced version thread.
[Asus Transformer TF700] sloanster:
Could you post the correct link.... Please!

Thanks
[Asus Transformer TF700] schidddy:
i would suggest u to open ur eyes -.- sometimes i ask myself how lazy some people are thinking other people will just do the job for them
[Asus Transformer TF700] buhohitr:
The newer version of data2sd

http://xdaforums.com/showthread.php?t=1962507
[Asus Transformer TF700] InHuM@N:
Disabling journaling

Hello!

I'm trying to flash Clean rom 3.2.2 and Data2sd and i think i'm almost done... but i have an issue that i can't get around can you please help ?

I'm getting random reboots from TF700T after installing the data2sd Mod, from what i have read this is because i have to disable Journaling... but i'm having problems to understand how.

Your explination seems quite straigth but the problem is that when i boot in TWRP... Windows 7 does not recognize the Tablet therefore i can't start the adb shell to run the commands...

Thanks in advance.

V!
[Asus Transformer TF700] buhohitr:
You could enter the command lines through TWRP:

DISABLE JOURNALING using TWRP

1) Go to Advanced/Terminal Command

2) Navigate to the /dev/block folder and press "Select Folder".

3) Enter the following commands in the Terminal Command window from the thread you referenced.
[Asus Transformer TF700] InHuM@N:
Thank you for the reply... i'm getting e2fsck: need terminal for interactive repairs.

Can you guide me through this issue?
[Asus Transformer TF700] buhohitr:
It's ok, but give this a try:

e2fsck -f -p /dev/block/mmcblk1p2
[Asus Transformer TF700] InHuM@N:
Thank you very much Buhohitr !

It's working without loops :D

Going to do some personal user expirience tests to check stability and smoothness of this rom and mod's!

Thank you again.
[Asus Transformer TF700] HTCCT:
Hey :)

At first i have used the enhanced data2sd mod and it seems to have worked. I have a /sdcardi folder where data is stored and a normal /sdcard folder but my random write with androbench is still 0.2x. Somebody has told me to disable jouurnaling because i am on clean rom inheritance 3.4.6.

now i have entered the lines of 1st post in twrp and it says comand unmount...unknown or something similiar. Then i have the same problem like the user before, which you have told he should use the command above us (quote). If i use this alternative command something happens (text runs up). Same with the "tune2fs..." line and logically with the last line.

Has it worked ? How can i check it ? Please help :) i have still 0.2x at androbench
[Asus Transformer TF700] buhohitr:
If you want to know if it's using your sdcard or not, power off the device, remove the card, then power it backup, if you see the error " encryption issue and press here to do factory reset" then you are using data2sd. To clear this error, jre insert the sdcard then hold down your power button until your device reboot. What kind of sdcard do you have??
[Asus Transformer TF700] HTCCT:
I am using a 16gb class 10 micro sd. The problem is that i have multiple lags (most at play store and a very slow downloadspeed).

And androbench sya my random write speed is still 0.2.x and not above 0.4. That means no changes for me with data2sd
[Asus Transformer TF700] buhohitr:
Seems like you have other issue, not data2sd, did you install Crossbreeder/lagfix etc...?These can help or can ruin your smooth experiences, let disable data2sd for now by reflash a regular kernel and take it from there.
[Asus Transformer TF700] HTCCT:
Yes i have installed lagfix and other mods from clean rom. Ok ! That means i have to wipe my internal and external storage and have to flash cleanrom without any other stuff. and after that i should return to data2sd etc. ?

What is with turning off jouarnaling ? is it needed etc. ?
[Asus Transformer TF700] buhohitr:
yes, do a clean install with normal mode first, MAKE SURE YOU BACKUP ALL YOUR STUFF then boot to twrp -> wipe ->factory reset -> internal -->format sdcard, now install cromi 3.4.6 and use Hund kernel version 2.0, don't install lagfix or Crossbreeder. We can do all that later on.
[Asus Transformer TF700] HTCCT:
Ok but a backup isnt needed because i havent installed anything (i have thought something like this ;))

And do you mean format/partion sdcard new ? or wipe/delete all ?

Last question : Is it needed to install cromi4.x-data2sd.zip or is mount-data2sd.zip enough ? or do you mean another data2sd.zip ?

Is journaling still needed or can i forget it ?
[Asus Transformer TF700] buhohitr:
In TWRP in the "wipe" mode, you want to do 1) factory reset 2)Internal 3)format sdcard

Don't use cromi4.3.x-data2sd, just use mount-data2sd.zip then install one of hund kernel version 2-data2sd.

You don't need to use journaling, cause it's make your sdcard unstable.
[Asus Transformer TF700] HTCCT:
I have wiped everything and now everything works much better. I havent installed any mods (like lagfix etc.) but now its nearly perfect.

The thing is just that i cant see my "old internal storage", i mean the 64gb built in of the asus tablet. In settings at storage i see my 16gb ext4 storage, which is actually my internal storage and the little fat32 storage about 156 mb. But not the built in.

In file manager i can see it. I mean now i have a 16gb internal storage and 64gb "gone" storage ?!

It should be in spite of visible under settigns/storage ??
[Asus Transformer TF700] smalis:
Should these posts be taking place in the newer thread?

http://xdaforums.com/showthread.php?t=1962507
[Asus Transformer TF700] buhohitr:
You can see the real internal storage by using "root explorer", ES file explorer or something similar, you should see /sdcard (ext4), sdcardi(real internal), in /Removable, you should see Micro sdcard (fat32) and SD (dock sdcard). You won't see your internal storage in settings->storage. BTW your fat32 should be atleast 10 gb, so you can keep rom/kernel,all your backups and what ever you need.
[Asus Transformer TF700] HTCCT:
Yes its like you descirbed ;) thanks man !

Yeah you are right with the 10gb xD i have stupidly made just 156 MB :D but i have a second micro sd card and there can i store such thinks and if needed i can put it into the tablet :)
[Asus Transformer TF700] fordwolden:
If you are talking about this: http://xdaforums.com/showthread.php?t=1943227 you can use the boot.blob for CleanROM 2.1,

it uses the same base.

Let me know what you think.