[ROOT] Howto root easily your Gen8 device [fw 2.0.71 - 2.4.83] + R/W FILESYSTEM

LeoNg628 · Feb 26, 2011

Hi,

I need you help...><
Since I have use 2.1.08+rw a while, but I've installed busybox from market and lost SuperUser permission,

so I make a backup and 'Reset Android' want to bring it back, after reset,
I've 'Update Firmware' with 2.1.08's AOS, and choose Developer Edition menu to remove Android Kernal,
then flash yours 2.1.08+rw file,
but my Archos never come back....(can't boot up)

Am I did something wrong?

*but when I flash the non+rw file, it can boot up and have SuperUser here..is it any different between +RW and non+RW?

jakkrith · Feb 26, 2011

LeoNg628 said:
Hi,

I need you help...><
Since I have use 2.1.08+rw a while, but I've installed busybox from market and lost SuperUser permission,

so I make a backup and 'Reset Android' want to bring it back, after reset,
I've 'Update Firmware' with 2.1.08's AOS, and choose Developer Edition menu to remove Android Kernal,
then flash yours 2.1.08+rw file,
but my Archos never come back....(can't boot up)

Am I did something wrong?

*but when I flash the non+rw file, it can boot up and have SuperUser here..is it any different between +RW and non+RW?

BE CAREFULLY: if you delete or corrupt important system files and aren't able to boot anymore, you have to flash the "non-rw" root kernel+initramfs, go to /mnt/system/unionfs and remove the changes.

chrulri · Feb 26, 2011

jakkrith said:
BE CAREFULLY: if you delete or corrupt important system files and aren't able to boot anymore, you have to flash the "non-rw" root kernel+initramfs, go to /mnt/system/unionfs and remove the changes.

thanks jakkrith!

@LeoNg628 look at jakkriths posting, that's what you have to do:
- install non-rw

Code:

$ su
# rm -rf /mnt/system/unionfs

- install +rw

ske714 · Feb 26, 2011

LeoNg628 said:
Hi,

I've 'Update Firmware' with 2.1.08's AOS, and choose Developer Edition menu to

remove Android Kernal,

then flash yours 2.1.08+rw file,

but my Archos never come back....(can't boot up)

It looks to me like you did a couple of steps out of order. Don't know if it matters, but you deleted the kernal before you flashed custom kernel + initramfs. Here is the sequence from the first post.

1. Install SDE (you only have to do this only once, it will even survive a full reformat)

2. Install android firmware

3. Install the custom kernel + initramfs
now you have temporary root
4. (optional!) permanent root
* Go to "Recovery Menu" and then "Developer Edition Menu"
* choose "Remove Android Kernel"

LeoNg628 · Feb 26, 2011

jakkrith said:
BE CAREFULLY: if you delete or corrupt important system files and aren't able to boot anymore, you have to flash the "non-rw" root kernel+initramfs, go to /mnt/system/unionfs and remove the changes.

Yup, I have read this....but I mount to this folder and I've saw another 'system, bin, mnt' inside as below:

drwxr-xr-x 2 root root 1024 Feb 25 10:04 bin
drwxr-xr-x 3 root root 1024 Feb 16 19:54 mnt
drwxr-xr-x 8 root root 1024 Feb 25 08:11 system

I am afraid if I remove this 3 folders will break my Archos's Android system, so haven't did that. ><

LeoNg628 · Feb 26, 2011

chulri said:
thanks jakkrith!

@LeoNg628 look at jakkriths posting, that's what you have to do:
- install non-rw

Code:

$ su # rm -rf /mnt/system/unionfs

- install +rw

Thanks chulri!!
I will do it now!

*update: it works!! Thanks!!

wdl1908 · Feb 26, 2011

I finally installed the SDE after I bought a second unit an A70S My A101IT needs to go in for RMA because of a defective USB Host.

The installation was a breeze thanks to all the good instructions of chulri. Thanks again.

Now lets see if we can increase the data partition without doing repartitioning or manual manipulations.

chulri what about creating a 1Gb file on the /mnt/storage and formatting that as ext3 copying all the original /data to it and then mounting that with a loop interface on /data.

Should I create a separate thread to discuss this or can we keep it in here?

rUmtifUsel · Feb 26, 2011

chulri adviced me there to reinstall the archos kernel (2.1.08). but that didn't fixed my wlan problem.

i've uninstalled (once again) the developer edition, format the whole device (so that i have to reinstall android). installed again the developer edtion, installed android (archos 2.1.04), installed custom kernel and initramfs +rw(2.1.04), booted and then i could access my wlan without any probs. reboot, recovery menu, updated to 2.1.08, updated kernel and initramfs +rw for 2.1.08, uninstalled the android kernel, booted - et voilá everything is fine now.

chrulri · Feb 27, 2011

wdl1908 said:
Should I create a separate thread to discuss this or can we keep it in here?

I opened a [DEV] thread

click me gently

naga_z · Feb 27, 2011

does tihs work?

anyon try yet?

chrulri · Feb 27, 2011

naga_z said:
anyon try yet?

yes it works, please read the feedback in this thread or look at the download counters.

jakkrith · Mar 2, 2011

chulri said:
I opened a [DEV] thread click me gently

That's very nice topic and I would like to say Thank you (chulri and wdl1908) for the extra 1 GB /system/app space. Hope to test this feature ASAP.

wdl1908 · Mar 2, 2011

jakkrith said:
That's very nice topic and I would like to say Thank you (chulri and wdl1908) for the extra 1 GB /system/app space. Hope to test this feature ASAP.

It already works with a lot of manual tinkering. I'm running it now on my A70S. Chulri is starting to develop an app to do all the manual tinkering in a semi automatic way.

jakkrith · Mar 11, 2011

wdl1908 said:
It already works with a lot of manual tinkering. I'm running it now on my A70S. Chulri is starting to develop an app to do all the manual tinkering in a semi automatic way.

Thank you again. I'm looking forward enthusiastically. Because the disk space for installation apps almost full.

Result from AppDataResizer_v0.1.apk

Ambious · Mar 16, 2011

Hi guys.
I'm trying to do something a little different, and I thought this solution would help but no-go.
I'm trying to write a framework.jar file to /system/framework/, and as you can guess, it's not easy
I rooted the devices, even got su in adb shell, but no matter what I can't copy the file.
I even linked the framework directory to a new temporary /data/frameworktemp/ directory, which seemed to work, but didn't.
I installed the entire solution, with the SDE, with the fw, and with the custom initramfs [fw 2.0.71 +rw], and still I can't get write permissions on the /system/framework/ dir.
Mounting, remounting, nothing worked.
Any idea how to get it to work?

For the record, the device is an Archos A70 with 250GB.
Thanks,
-Ambious

chrulri · Mar 16, 2011

please restart your A70 and show me the output of

Code:

$ su
# ls -al /
# ls -al /system/
# ls -al /system/framework/
# ls -alR /mnt/system/unionfs/

Ambious · Mar 16, 2011

chulri said:
please restart your A70 and show me the output of

Code:

$ su # ls -al / # ls -al /system/ # ls -al /system/framework/ # ls -alR /mnt/system/unionfs/

In the meantime I formatted my device, and did the entire process again (installing the fw and then the kernal+initramfs(rw), and now I can't even get su.
(gives me /bin/sh: su: not found)
I'm gonna install Archangel and try again, but I'm guessing the kernal+initramfs(rw) should've installed SU, shouldn't it have?

chrulri · Mar 16, 2011

Ambious said:
In the meantime I formatted my device, and did the entire process again (installing the fw and then the kernal+initramfs(rw), and now I can't even get su.
(gives me /bin/sh: su: not found)

My guess, you did something wrong.

Ambious said:
but I'm guessing the kernal+initramfs(rw) should've installed SU, shouldn't it have?

it does, have you started the correct system? (developer edition!)

Ambious · Mar 16, 2011

chulri said:
My guess, you did something wrong.

it does, have you started the correct system? (developer edition!)

I have.
I'll try the entire thing again in the meantime.

chrulri · Mar 16, 2011

Ambious said:
I'll try the entire thing again in the meantime.

If it's still not working, install the non-rw initramfs and show me the output of:

Code:

$ su
# ls -alR /mnt/system/

Edit: btw.: Why are you still using 2.0.71? That was never fully tested with +rw, despite it's the same as the newer versions.

[ROOT] Howto root easily your Gen8 device [fw 2.0.71 - 2.4.83] + R/W FILESYSTEM

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