[ROM] [4.2.2] [ No-name CM10.1 nightlies ] [ Standard & Linaro ] [TF101 / TF101G]

josteink · Jun 29, 2013

zboq said:
Hi, josteink

I just installed Your latest stable build. Everything is working fine right now, but it's to early to say anything . Quick question though, your rom doesn't support Exfat on micro sd. Is it because of rom or kernel ?. I guess it kernel related but want to be sure.

Latest builds has extra support. Just use those

Sent from my Galaxy Nexus using Tapatalk 4 Beta

zboq · Jun 29, 2013

On it, thanks. It does say in the op that exfat is supported by the 23.06.2013 build and that got me confused a little couse that's the one I installed

Edit: Nope, it still doesn't work. I installed latest build, latest kat kernel and have a 64GB sandisk card. When I plug it into tablet, I get the message saying that card is empty.

josteink · Jun 29, 2013

zboq said:
On it, thanks. It does say in the op that exfat is supported by the 23.06.2013 build and that got me confused a little couse that's the one I installed

Edit: Nope, it still doesn't work. I installed latest build, latest kat kernel and have a 64GB sandisk card. When I plug it into tablet, I get the message saying that card is empty.

Dont install katkernel seperately. It's already baked in. Installing it seperately replaces the stuff and modules we have which ensures that we do have exfat support.

Chinaboy5216 · Jun 29, 2013

Hi Josteink,

I see that Samsung is on the verge of releasing android 4.3, any idea when CM would move towards it and what the extras (if any) would be for our beloved tf101?

Sent from my Transformer using xda premium

Magissia · Jun 29, 2013

Chinaboy5216 said:
Hi Josteink,

I see that Samsung is on the verge of releasing android 4.3, any idea when CM would move towards it and what the extras (if any) would be for our beloved tf101?

Sent from my Transformer using xda premium

I don't think it's a good idea, we'll probably have problems with NEON support...

Regards

zboq · Jun 29, 2013

josteink said:
Dont install katkernel seperately. It's already baked in. Installing it seperately replaces the stuff and modules we have which ensures that we do have exfat support.

Ok, so how can i go back to your kernel ?. I already installed latest build without installing the kernel afterwards.

josteink · Jun 29, 2013

Chinaboy5216 said:
Hi Josteink,

I see that Samsung is on the verge of releasing android 4.3, any idea when CM would move towards it and what the extras (if any) would be for our beloved tf101?

Sent from my Transformer using xda premium

From what I've read, 4.3 is still "jellybean" and there doesn't seem to be an earth-shattering amount of changes.

That said:

- CM wont touch this until there is a AOSP source drop. So far there hasn't been any.
- From source-drop to a CM-release based on that source can take anything from weeks to months
- Once the CM-team has something about based on 4.3, chances are there will be no official support for the TF101, just like it was with 4.2.
- If we're lucky, the changes between 4.2 and 4.3 wont be that major and we will be able to keep on maintaining a compatible device-tree so that we keep up to date.

This is all speculation and DON'T consider this me making any promises about anything

josteink · Jun 29, 2013

zboq said:
Ok, so how can i go back to your kernel ?. I already installed latest build without installing the kernel afterwards.

If you installed the latest build, you should be all set. Have you tried unmounting and remounting the Micro SD-card after boot?

Worst case scenario, you can't make it work no matter how, I'll give this a try myself. I personally commited code to make this thing supported, and it would be a shame if it doesn't work out of the box

Chinaboy5216 · Jun 29, 2013

Maybe a stupid question but what is the whole story with the NEON thing? I have no idea what it is...

Magissia said:
I don't think it's a good idea, we'll probably have problems with NEON support...

Regards

Sent from my Transformer using xda premium

josteink · Jun 29, 2013

Chinaboy5216 said:
Maybe a stupid question but what is the whole story with the NEON thing? I have no idea what it is...

Long story short... GPUs (graphic chipsets) are immensly better at performing parallell operations than CPUs (general processors) are.

You can use these GPUs not only to render 3d graphics and stuff like that, but also to do calculations. Basically algorhitms which processes lots of data and can do it in parallell can /in theory) run much faster on a GPU than a CPU.

This requires ordinary program-instructions to be translated from normal code to GPU code. For that to be generally possible, a GPU must have a so called NEON-capable instruction set. Tegra2 does not have all the instructions required to be NEON-capcable.

This means that some program/system-components written to exploit the computational capacity of a NEON-capable GPU will not work and at worst crash on a Tegra2 device. This can be anything from the Google swipe-gesture keyboard to voice-recognition, to stuff like merging pictures in a photosphere or whatever.

CM's point is that Android is increasingly moving in that direction, and they don't see any reason to hold CM back just to support the two or three devices on the market with a Tegra2 chipset (TF101, Xoom and possibly the Galaxy tab).

We'll see how it all turns out.

zboq · Jun 29, 2013

josteink said:
If you installed the latest build, you should be all set. Have you tried unmounting and remounting the Micro SD-card after boot?

Worst case scenario, you can't make it work no matter how, I'll give this a try myself. I personally commited code to make this thing supported, and it would be a shame if it doesn't work out of the box

Ok then. I have reformatted the card to fat32 for now to restore my apps but will change to exfat later and report back.

josteink · Jun 29, 2013

Magissia said:
Hello, anyon here tried ext4 formated MicroSD ? I have troubles using ext4 formated MicroSD not auto mounting at boot (while it was when using FAT32)

Regards

Just tried here. Works fine.

Now to test exfat...

josteink · Jun 29, 2013

zboq said:
Ok then. I have reformatted the card to fat32 for now to restore my apps but will change to exfat later and report back.

Sorry about my pedantry. Getting "SD card is blank or has unsupported filesystem".

Will look into why it doesn't work.

Edit: manually mounting via a shell works...

shell@android:/ # mount -t texfat /dev/block/mmcblk1p1 /storage/sdcard1/
shell@android:/ # ls /storage/sdcard1/
test.txt

Can probably be fstab/voldtab related.

Edit 2: Bingo. This thread says vold only supports vfat/ms-dos thingies:
http://xdaforums.com/showthread.php?t=1371621

This thread however has a work-around. Which makes perfect sense.
http://xdaforums.com/showthread.php?t=2149739

I'll see if I can create a flashable ZIP which can be used to add that to the ROM. Later though

Edit 3: That solution has issues too... Ah well.

Chinaboy5216 · Jun 29, 2013

josteink said:
Long story short... GPUs (graphic chipsets) are immensly better at performing parallell operations than CPUs (general processors) are.

You can use these GPUs not only to render 3d graphics and stuff like that, but also to do calculations. Basically algorhitms which processes lots of data and can do it in parallell can /in theory) run much faster on a GPU than a CPU.

This requires ordinary program-instructions to be translated from normal code to GPU code. For that to be generally possible, a GPU must have a so called NEON-capable instruction set. Tegra2 does not have all the instructions required to be NEON-capcable.

This means that some program/system-components written to exploit the computational capacity of a NEON-capable GPU will not work and at worst crash on a Tegra2 device. This can be anything from the Google swipe-gesture keyboard to voice-recognition, to stuff like merging pictures in a photosphere or whatever.

CM's point is that Android is increasingly moving in that direction, and they don't see any reason to hold CM back just to support the two or three devices on the market with a Tegra2 chipset (TF101, Xoom and possibly the Galaxy tab).

We'll see how it all turns out.

Thx for this explanation, in short it will mean our 101 will be abandoned by CM although it is still one of the most powerful tablets on the market. I keep comparing with newer tablets but find no advantage in them. TF101 rocks!!!!
I'll keep my fingers crossed on further development and bypasses for the neon thing. I love my 101 too much to abandon it.

Thanks Josteink

Sent from my Transformer using xda premium

zboq · Jun 29, 2013

josteink said:
Sorry about my pedantry. Getting "SD card is blank or has unsupported filesystem".

Will look into why it doesn't work.

Edit: manually mounting via a shell works...

Can probably be fstab/voldtab related.

Edit 2: Bingo. This thread says vold only supports vfat/ms-dos thingies:
http://xdaforums.com/showthread.php?t=1371621

This thread however has a work-around. Which makes perfect sense.
http://xdaforums.com/showthread.php?t=2149739

I'll see if I can create a flashable ZIP which can be used to add that to the ROM. Later though

Edit 3: That solution has issues too... Ah well.

Just for you to know, previously I had ARHD 3.6 with RaymanFX elite kernel and exfat worked great there. Maybe You could look how he got it working ?

Magissia · Jun 29, 2013

josteink said:
Just tried here. Works fine.

Now to test exfat...

Your Ext4 MicroSD is mounted and ready to use right after booting ?
Any specific manipulation ? Here i just inserted the MicroSD card and let the system do everything.
At each boot/reboot i have to wwait about three minutes before the MicroSD card become avaliable for use (mounted)

If i try to force mount it using Kat apps before the ~3mins i get an error
I'm using a 32gb microSD if it's important.

Regards

josteink · Jun 29, 2013

Magissia said:
Your Ext4 MicroSD is mounted and ready to use right after booting ?
Any specific manipulation ? Here i just inserted the MicroSD card and let the system do everything.
At each boot/reboot i have to wwait about three minutes before the MicroSD card become avaliable for use (mounted)

If i try to force mount it using Kat apps before the ~3mins i get an error
I'm using a 32gb microSD if it's important.

Regards

What I did what this:

1. normal linaro no-name install. no extra kernel. no kat-app.
2. on a normal linux mahine, format a 8gb micro-sd card as ext4. copy a simple text-file over for verification.
3. insert microsd-card into tablet. see that it works. by doing a "ls /storage/sdcard1/" in terminal.
4. reboot.
5. reverify in a terminal with "ls /storage/sdcard1/"

Maybe it's the fact that I dont have a lot of media and stuff which needs to be scanned on the sdcard? I don't know, but it works here, and I dont need any additional apps or stuff to mess with the process.

josteink · Jun 29, 2013

Chinaboy5216 said:
Thx for this explanation, in short it will mean our 101 will be abandoned by CM although it is still one of the most powerful tablets on the market. I keep comparing with newer tablets but find no advantage in them. TF101 rocks!!!!
I'll keep my fingers crossed on further development and bypasses for the neon thing. I love my 101 too much to abandon it.

Thanks Josteink

Sent from my Transformer using xda premium

Not sure I'd call it "the most powerful tablet on the market". It's been out for a while. It was an early model to probe the market.

It was revolutionary at the time of launch, but since then several models have superceeded it and everyone agrees Tegra2 is pretty much junk. Definitely so compared to what's available on the market today.

Like I said though: We may be able to get CM-builds running for the TF101 even though CM officially abandons it (like they already have).

Last official CM build for the TF101 was CM10. We still managed to get CM10.1 running. Maybe we'll get CM10.2 running as well

Chinaboy5216 · Jun 29, 2013

josteink said:
Not sure I'd call it "the most powerful tablet on the market". It's been out for a while. It was an early model to probe the market.

It was revolutionary at the time of launch, but since then several models have superceeded it and everyone agrees Tegra2 is pretty much junk. Definitely so compared to what's available on the market today.

Like I said though: We may be able to get CM-builds running for the TF101 even though CM officially abandons it (like they already have).

Last official CM build for the TF101 was CM10. We still managed to get CM10.1 running. Maybe we'll get CM10.2 running as well

Maybe not the most powerful anymore but still a great tablet!!!!!!!!! I hope it will never be forgotten.

Sent from my Transformer using xda premium

philseven · Jun 30, 2013

Chinaboy5216 said:
Maybe not the most powerful anymore but still a great tablet!!!!!!!!! I hope it will never be forgotten.

Sent from my Transformer using xda premium

+1 it gets the job done and thanks to a small group of developers that bless us with there time and efforts that keep are tab relevant.

Sent from my Transformer using Tapatalk HD

[ROM] [4.2.2] [ No-name CM10.1 nightlies ] [ Standard & Linaro ] [TF101 / TF101G]

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