yashsingh1/xdaforums huggingface dataset:
[Asus Transformer TF700] androidxen:
Yes, sorry, that was a mistype (I originally wrote the post explaining my problems with ext4, but then noticed the other post about TWRP not working, which was the barrier to my use of ext4).

Trying the TWRP driver solution worked, so now reformatting my card again (making sure it's ext4 this time), will try disabling journaling and then trying it again! :o

//edit: Yup, the TWRP driver solution + ext4 worked, no more reboots!
[Asus Transformer TF700] maxrdlf95:
Go disable jounaling that solved those reboots on mine

Enviado desde mi ASUS Transformer Pad TF700T usando XDA Premium HD app
[Asus Transformer TF700] fordwolden:
Modded clemsyn kernel posted, remember, this is a flashable .zip, no need for extra steps if you're already on this mod. If you are new to the mod you will need to disable journaling as always.

Might be more goodies for the Data2SD guys coming during the day... :)
[Asus Transformer TF700] dan.kels.r:
I literally just formatted my hd in favor of a custom win7 os. Reinstalling linux now to try this. Thanks
[Asus Transformer TF700] Mackis:
Ok but you could have done it in a live cd to no need to install Linux just for that reason.

Hope this fixes the sd card for you and you can bring it to life again, let us know how it goes.

Best regards

Mackis
[Asus Transformer TF700] dan.kels.r:
well crap, linux doesnt even see the sd card inserted. tried 2 different microsd card reader. sd card adapter and a usb adapter. gonna try to make it workable with mini partition in windows and then try gparted

---------- Post added at 05:35 AM ---------- Previous post was at 05:17 AM ----------

@Mackis

Well I punched in the line you suggested even tho linux cant see the card and it spit this out. Mean anything?

1+0 records in

1+0 records out

512 bytes (512 B) copied, 4.3415e-05 s, 11.8 MB/s
[Asus Transformer TF700] Mackis:
What is says is that it successfuly cleared your master boot record.

Now try gparted to partition the card and format it

You can also do

sudo fdisk -l in a terminal to see all devices. It should be there.

//Mackis
[Asus Transformer TF700] dan.kels.r:
heres what fdisk gave me. down towards the bottom the 32mb is the sdcard

dan@Satellite:~$ sudo fdisk -l

[sudo] password for dan:

Disk /dev/sda: 500.1 GB, 500107862016 bytes

255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 4096 bytes

I/O size (minimum/optimal): 4096 bytes / 4096 bytes

Disk identifier: 0x0cc7ae49

Device Boot Start End Blocks Id System

/dev/sda1 * 2048 206847 102400 7 HPFS/NTFS/exFAT

/dev/sda2 206848 523069846 261431499+ 7 HPFS/NTFS/exFAT

/dev/sda3 523071486 976771071 226849793 5 Extended

Partition 3 does not start on physical sector boundary.

/dev/sda5 969488384 976771071 3641344 82 Linux swap / Solaris

/dev/sda6 523071488 969488383 223208448 83 Linux

Partition table entries are not in disk order

Disk /dev/sdb: 32 MB, 32096256 bytes

1 heads, 62 sectors/track, 1011 cylinders, total 62688 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000

Disk /dev/sdb doesn't contain a valid partition table
[Asus Transformer TF700] Mackis:
Can't understand why it just reports it as 32mb if it is a 32gb.

The whipe of the MBR record with dd did also erase the partitionstable as it should because its within the first 512bytes.

That should have corrected your issue.

Let me read up a bit on this i will come back to you.

What brand is the SD card and what type is it?

What was the filesystems that you used on the card?

Exfat+Ext4?

Best regards

Mackis
[Asus Transformer TF700] dan.kels.r:
thanks for much for your help this far. id hate for you to put anymore time into. ive already sent an email to the manufacturer to see if i can get a replacement as the card is 2 months old. but if you want to its a 32gb class 10 sandisc. i used windows and mini partition to make 2 primary partitions the 1st being 22gb of fat32 and the second as 10gb of ext4
[Asus Transformer TF700] Mackis:
No probs man.

Next time it's me asking for help and maybe you will be able to assist, thats the way i see it.

Sanddisk should take it back, i will see if i find something, but it seems that it is a hardware failure....

Best regards

Mackis
[Asus Transformer TF700] fordwolden:
I've had the the same issue with 64gb sandisk, I've not been able to recover.

Now, over to some news! It seems the backup sd-ext option in twrp is gone. A friendly dev has modded a version of the latest Twrp for us so we can run backups just like normal. It will back up the /data partition from the microSD. I've tested it and it works just perfect. Will be in post #2 later tonight.
[Asus Transformer TF700] flumpster:
The only thing I would add to post 2 is to recommend that they back up to external which is the fat partition. If they backup to internal which is now the ext partition and something goes wrong with that partition they wont have access to their backup.

Also I know that it is posted but you must remove the old twrp settings otherwise it wont backup and restore properly.
[Asus Transformer TF700] fordwolden:
Will add to the post! Thanks alot! Works like a charm.

I actually did something funny today, flashed the CleanROM 2.3 with the GPU overclocked clemsyn kernel on my Prime, then I just moved the microsd from my Infinty over and everything was there, apps and settings etc.. Two devices, one storage! :)
[Asus Transformer TF700] Diogenes5:
When I first installed this mod on my infinity, I used ext2 since there were no good guides on getting adb to recognize my tablet in twrp recovery.

After a few hours, my tablet would no longer boot. I assumed the data had been corrupted somehow (perhaps by sleep mode). I was also using cleanrom 2.3 at the time which had new ext4 optimizations so I assumed this might have caused data corruption and reboots as well.

After learning how to turn off journaling with an ext4 partition, I did a clean install of both my rom and the data2sd mod, making sure to follow instructions exactly.

I thought my problems were over. However, I got the dreaded endless reboot again today. I was super careful to always backup everything so I was able to restore in TWRP recovery.

However, I obviously can't use this mod if it keeps rebooting like this. Does anyone have any idea of what might be causing it (or rather the data corruption that must be ocurring)? I used Minitool Partition Wizard in windows 7 btw, left everything at default except for switching both of my microsd partitions to primary.
[Asus Transformer TF700] fordwolden:
That's a hard one to crack, my guess is that something else is causing at least the first reboot, then the next reboot could be caused by data corruption, or rather data losses but I still not think that would cause this. I've ejected my microsd while the device was running several times and I only get an error message, then just stick the card back in, and boot, no problem.

Are there more people experiencing this, even with journaling disabled? Please give a shout out.

I'm not saying you're doing something wrong here, just trying to wrap my head around it. Could be it's not playing nice with some of the tweaks of the rom. I will have a look at it shortly, my laptop crashed so I'm currently setting up a fresh Linux and my development tools to get running again.

Edit: If you have the possibility of making a "gparted livecd/usb" I would try that first: http://gparted.sourceforge.net/livecd.php I think it is a straight forward thing.
[Asus Transformer TF700] buhohitr:
fordwolden, I have couple questions for you. what tool did you used to measure random write for your card and what's your random write in MB/s please. Thanks
[Asus Transformer TF700] fordwolden:
I use the "Androbench" app from the Play store. If you want to test it of a pc I don't know, I only did before after benchmarks but

a search on google will probably find you a tool! It will not be 100% though as it will be affected by the way you connect it to your

computer (SDcard adapter, USB 2.0/3.0 etc.). So the only real benchmark is before/after.

My scores on Androbench varies from 0.75Mb/s as the lowest and 0.89Mb/s as the highest!
[Asus Transformer TF700] buhohitr:
Using Androbench, how did you switch target to use external sd card? Thanks

Edit: when I ran the test the results for Random write is 8Mb/s for internal memory.
[Asus Transformer TF700] fordwolden:
It tests the write speeds on the /data partition wherever that may be placed. I tested it, applied the mod (moving /data to the microSD), then tested again.
[Asus Transformer TF700] buhohitr:
Oh I see, so I have to test it first then implement data2sd then retest. There is no way to test the sd card random write before implement data2sd? Also the result for internal SD card on mine is 40.51 IOPS(4K), how did you translated this to .89Mb/s??
[Asus Transformer TF700] fordwolden:
If you want the "real deal" then yes, but google something like "windows sdcard benchmark" and I am sure the fish will bite!
[Asus Transformer TF700] flumpster:
Do you have a proper SD in the dock or a USB device plugged into the dock when it goes to sleep?

If you do chances are that you have the same problem as we do on the prime and the TF300 where it will crash with these devices left in the dock when it goes to sleep.

If you do have any of these things in the dock try removing them and see if the corruption still occurs.
[Asus Transformer TF700] fordwolden:
Just a heads up on this, one guy has tested the Sandisk Exreme Pro 16gb MicroSD with this mod and could NOT get it to work! That is the latest and greatest in

SD cards and it costs around $65 so if you're not overly confident I would stay away from it, with this MOD!
[Asus Transformer TF700] Diogenes5:
Had to give up on this mod. It rebooted again after i wiped the data on card and repartitioned. Did nothing but update with google store. I think the tablet went to sleep because there were only 5 programs being updated and i came back 30 minutes later and it had barely updated. Some future rom may need to make sure the tablet doesnt dismount the external while asleep.

May be the card itself too. Not sure how to go about reformatting it. I will probably try again later either with the new samsung 64gb micro sd cards that are about to come out or a current gen samsung 32gb micro sd. The sandisk never worked well with the microsd slot before jb.
[Asus Transformer TF700] fordwolden:
I am pretty sure this is a card issue, I have been running this mod on two devices for quite som time and never had this issue! As I said, I have ejected my card while running several times, rebooted, etc. Never had any issues!

Good luck on your next card!
[Asus Transformer TF700] fordwolden:
clemsyns 650 OC kernel is modded and ready for you to flash. I'm sorry about the delay but I had a hard crash on my computer, and a hard time setting it back up.

Happy flashing! :)
[Asus Transformer TF700] Mistar Muffin:
I've done a good bit of research along with some trial and error over the last few days towards the goal of having the internal sdcard available over MTP. I'm just not strong enough in this area to figure it out. I was able to re-label our MicroSD cards over MTP to show as MicroSD instead of Internal Storage, but I was not able to mount the internal storage alongside it.

Are there any experts that could assist in getting /data2/media available via MTP?

-Adam
[Asus Transformer TF700] stanglifemike:
To fordwolden and anyone else involved, thank you so very much for bringing this to our Infinity and the continued development and progress!!!!

I'm going to be buying a 64gb SanDisk micro-sd card and running this mod soon!! Doubling internal storage is the main reason I want this mod. Awesome!!
[Asus Transformer TF700] fordwolden:
I've been researching this too and it seems to be a tough one to crack, I certainly hope someone can manage though!

Thanks! Always nice to help a fellow 'stang owner, mine's a bit of age though and not very modded, '66 HT! :)
[Asus Transformer TF700] phunky123:
A little confused on setup now. new install. Do i flash the clemsyn-ver8-GPU600-Data2SD, disable journaling and I am good? Or is the install instructions in OP still needed, then flash clemsyn-ver8-GPU600-Data2SD from recovery? THX
[Asus Transformer TF700] fordwolden:
The clemsyn kernel versions are flashable .zips so you can can just flash them and... That's it really, the mod is incorporated.

If you haven't disabled journaling on a previous install you still need to do that step.
[Asus Transformer TF700] buhohitr:
fordwolden, is it possible you can put back the zip for data2sd for cleanrom 2.3? I don't want to use the Clemsyn kernel yet. Thanks
[Asus Transformer TF700] fordwolden:
No idea, test it. The random writes is what you are looking for, internal storage does about 0.2mb/s so anything better than that will give improvements.

I have never taken it down! Remember, that is not a flashable zip so you must follow instructions in OP.
[Asus Transformer TF700] tyfoxx:
one more time

My firstt attampt gave me a bootloop, but i aint giving up. going to an iPhone Convention (coffie with friends) on Saturday and i want to be ready.
[Asus Transformer TF700] cyiam40:
Help Disabling Journalling

I have done everything except for disabling journaling. I can't get my computer to see my Infinity when using adb shell. It just says error no device. Even after I installed the Universal Naked drivers. Any ideas?
[Asus Transformer TF700] tyfoxx:
Help Please.

I followed the instruction,

(1)	Partitioned my SDCard (ext4 =6GB, FAT=23GB)

(2)	Downloaded the Data2SD zip extracted and installed boot.blob.

(3)	3 turned off journaling

(4)	Installed the New Kernel,

I get a message quoting some encryption error asking to shut off the device, can someone help me out with this, and it is the third time this has happened?

thanks and take care,

tyfoxx
[Asus Transformer TF700] buhohitr:
I haven't try this yet, but logically you should install the Kernel first, like before step 2.

1. Partitioned SD card

2. Installed New Kernel

3. Installed boot.blob

4. turn off journaling
[Asus Transformer TF700] fordwolden:
I think this has to do with journaling . I assume you are on CleanROM 2.3? Did you flash "New Kernel" from this OP

or the original one from the other thread!

Either way I would wipe and install again:

1. Do the usual wipes from recovery (factory reset+dalvik cache), wipe the ext4 patition of your microSD as well.

2. Flash CleanROM 2.3

3. Either use CleanROM 2.3 Data2SD.zip unzip and follow instructions from OP or Flash the modded clemsyn kernel

from OP. The last one being the easiest.

4. Disable journaling.

Have a look at these posts, especially the bottom one. http://xdaforums.com/showthread.php?t=1797692&page=27
[Asus Transformer TF700] buhohitr:
Can someone download "SD card tester" from the market and provide read/write test for your so called "fast sd card"? I have an ultra sandisk 32gb rated @ 30MB/s but this tool reported read=10Mb/s and write=8Mb/s vs my internal SDcard is read=9Mb/s,write=12Mb/s, which seems not as good as the internal SD card. I want to compare apple to apple using the same tool. Thanks.
[Asus Transformer TF700] tyfoxx:
Thank you. Gonna Give this a go , But I'm away from my computer right now is there a way to Disable journaling form TWRP 2.3.1.0?

BTW,

Since most folks who want to perform this change will have their SDcard patitioned, Perhaps, this should be an option to install this Mod in later builds, Just a suggestion.
[Asus Transformer TF700] fordwolden:
1. Might be, al least there used to be a terminal emulator in twrp, but I have not tested this.

2. That's up to the dev's, if they want to support it in their theads.

News: Upcoming releases will be flashable zips so that takes some of the hassle away (1. Flash ROM 2.Flash Mod 3. Perfection). Will try to do a CM10 version later tonight. :)
[Asus Transformer TF700] Mistar Muffin:
https://www.dropbox.com/s/vgq8a1k1wzh4mfz/cm-10-20121025-UNOFFICIAL-tf700t-Data2SD.zip

Teamwork, *****es! :victory:
[Asus Transformer TF700] stanglifemike:
Awesome!!!! Thank you!!!!
[Asus Transformer TF700] stanglifemike:
Just installed and ran it for you. Took a screenshot of the results. This is INTERNAL sd scores, I am running CleanRom 2.3. Did not run this app with factory rom, so I don't have that for comparison.

EDIT: Next post/pic has EXTERNAL sd scores
[Asus Transformer TF700] stanglifemike:
Here are the scores from my EXTERNAL sd card. This is on a SanDisk 32gb Class 4 card. I have not done anything to it via SD Booster, etc. Running it just like it came out of the package.

EDIT: Will run again for comparisons once I get a 64gb SanDisk card
[Asus Transformer TF700] buhohitr:
+2, thanks. So here is your internal SD running CleanRom:

internal

write=8.73

read=16.87

Here is internal SD card running stock JB .18:

write=8.02

read=10.16

Compared to this 32Gb Sandisk class10 UHS1 rated @30Mb/s from Amazon (I have 3 of these):

http://www.amazon.com/gp/product/B007XZM6VG/ref=oh_details_o00_s00_i00

Here is the result of the external Sandisk card:

external 32gb sandisk, class 10 UHS1 rated 30Mb/s

write=11.84

read=22.85

Just throw the info out here for everyone to see. I also heard from OP that the fastest 16gb Sandisk rated @ 95Mb/s is NOT WORKING with this mod.
[Asus Transformer TF700] tyfoxx:
Thanks a million, Cant wait to see it.
[Asus Transformer TF700] fordwolden:
That is a nice improvement although it ain't the most important one. Those tests are of Sequential read/writes, it is Random read/writes that affect the performance of android the most, sequentials only come in to play when transferring big files.
[Asus Transformer TF700] suzook:
can this be done to my already installed clean 2.3? or do i need to reinstall clean?

NM...I did, had to redo setup...due to apps being gone...LOL...DUH!
[Asus Transformer TF700] crazyboyxx:
Is there any way to revert it without flashing a new ROM or factory reset, it is because I need my apps+data back in the original I/O.
[Asus Transformer TF700] crazyboyxx:
Another question, Im using ADATA 32GB MicroSD, below is my result in Data2SD, does it really worth to install data2sd or should i change back to original I/O :confused:
[Asus Transformer TF700] jaxboater:
Fastboot works abd shell is a no go

I wiped and fresh flashed both Clean 2.3 & Data2SD.

I also flashed the modified twrp.

I was unable to do anything else.

I could run the fastboot command and see device info, but got 'error no devices found' when trying to run adb shell commands.

So back to stock.

Oh, well.....
[Asus Transformer TF700] suzook:
Running clean rom with this mod and gpu o/c, and this tab is smooth as silk. I cannot believe how awesome this tab is. WTF is up with asus using ****ty ram? They should be paying the devs, as im sure many of us have kept our tabs, instead of returning them. GREAT WORK!
[Asus Transformer TF700] buhohitr:
Each device is different, you should take a reading before and after with your own device to see if it improved or not. Your random write is good, but sequencial wirte is lower than stock. It may take longer when download a large file.
[Asus Transformer TF700] crazyboyxx:
well, as you said, only the random write improved, the others performance decrease, should i still use data2sd or order a new MicroSD

If so, which one is the best MircoSD right now?
[Asus Transformer TF700] buhohitr:
What is your SD card specs? is it rated @30Mb/s class 10? currently this is the fastest one for this mod. I heard from OP the super fast 95Mb/s won't work with the mod but I haven't confirmed this myself.
[Asus Transformer TF700] crazyboyxx:
Thats Im using http://www.amazon.com/gp/product/B0052BKJJY/ref=oh_details_o00_s00_i00

I do some research that @30Mb/s class 10 doesn't 100% equal fast random write, can you provide some exact model for me? Thanks

One more question, how to know the random write in CrystalDiskMark, there are 3 different types of it (512K, 4K, 4K QD32), which one should i look for

sorry for bad English, not a native speaker
[Asus Transformer TF700] fordwolden:
Your apps+data will be in your microSD, if you revert you will not use that partition, that's the whole idea of the MOD. Can't you

just use Titanium Backup or something of the sort?

Read through the last pages of the TWRP thread and you will find the fix for this, I think I linked to it a page or two ago.

Adrobench use this setup:

Read file size='32MB', write file size='2MB

Sequential buffer size='256KB', random buffer size='4KB'

So it would be the 4K one from Crystaldisk as well but as stated earlier, the adapter you use when you connect it to your computer might be a factor to (USB2.0/3.0 or SDcard adapter).
[Asus Transformer TF700] crazyboyxx:
Thanks so much, what about the fast random write class 10 MicroSD model, any suggestion? I search so many on amazon but I dont know how the speed of random write is.
[Asus Transformer TF700] fordwolden:
The fastest card successfully used with this mod is the "SanDisk Ultra xxGB microSDHC Class 10 UHS-1", the new "Extreme Pro" card is reported as not working by two users.
[Asus Transformer TF700] crazyboyxx:
Thank you very much :good:
[Asus Transformer TF700] tyfoxx:
it aint happening

thanks for all your help, i just Cant Close the deal with this mod, gonna wait until some sort of automated script and option is built in some version of CR.

in the mean time, i will just enjoy what i got.
[Asus Transformer TF700] fordwolden:
Just ordered a 16gb "Extreme Pro" microSD for testing purposes! I will not recommend others to do so yet, as it has

been reported NOT to work, but I want to confirm. Also 16gb is a bit less than I'd like, it would be lightning fast though! :)
[Asus Transformer TF700] buhohitr:
Yes, We all looking forward to this. Hope this works, it's going to be the best mod ever!
[Asus Transformer TF700] suzook:
Awesome! Not sure how much quicker we need though. Im using the good ole sandisk ultra Class 10, and this thing flies now. Its like a new tab.
[Asus Transformer TF700] jaxboater:
"Read through the last pages of the TWRP thread and you will find the fix for this, I think I linked to it a page or two ago."

I had read thru this tread before I started and when I had my problem I remembered something about 'naked drivers'

Started what I thought was a tread search for naked drivers but used wrong Google. There are some fine looking motorcycle riders out there but also some ugly truck drivers.

(my joke for the day)

Found needed info on other tread.

Thanks

Still no go. I've restored Win7 and looking at killing Win7 driver install.

I have updated to the naked drivers & still no adb shell.

fastboot devices works (see attached)

Anyone else with Windows 7 Pro 32 having issues?
[Asus Transformer TF700] buhohitr:
Have you tried to re install twrp? if still not working try flash twrp version 2.2.2.3
[Asus Transformer TF700] jaxboater:
I flashed the twrp zip in post 2 as part of the process.

Also I'm confused reference post 3 about running adb shell in twrp.

I thought we had to use usb vice the 'RCK' to run commands..
[Asus Transformer TF700] fordwolden:
How did you flash the twrp zip in post 2? And from you picture I can't see that you have working fastboot.
[Asus Transformer TF700] hobs0n:
hey peeps, Im soon off to try this mod and Im wondering about the ext4 partition size, since the partition is handling the RAM, shouldnt 1-3gb be enough??
[Asus Transformer TF700] buhohitr:
Since this new partition is going to store everything, all your apps, data, cache, download stuff etc... you don't want to put yourself in a corner, I suggest you should get yourself a 32gig SDcard and spare atleast 10gb for this mod, the rest you could use for your storage.(which is not a whole lot if you are dealing with video files, musics and images).
[Asus Transformer TF700] fordwolden:
You are correct in everything you said except for the cache part, cache is still mounted to internal storage. We could make a third partition and move that too, it has been done, but it doesn't give very much performance increase.