[Gen9]Modified init for HDD and flash G9, 350MB & "no-busybox" archos.ext4

[Gen9]Modified init for HDD and flash G9, 350MB & "no-busybox" archos.ext4

Updated version- should work on HDD models too

Disclaimer: use this at your own risk. I'm not responsible if your tablet wants to kill you.

Here's modified init for suduru_petru's rooted 3.2.80 firmware
Now also for HDD models
Tests were done by philmein


Before you start
-make sure that you have more than 512MB free space in internal memory (/data) or more than 350MB if you want to use attached system file

Features
-system image runs from /data partition (internal flash)
-dalvik-cache wipe is done for system updates, also can be triggered manually

Installation
1. Install SDE menu- INSTRUCTIONS
2. Prepare required files- copy archos.ext4.update file to the root of the card (if you have archos.ext4 just rename it to archos.ext4.update)
NOTE this MUST be archos.ext4.update file, zipped files will not work
3. Boot to Recovery (Volume+ and Power), then Developer Edition Menu -> Flash Kernel and Initramfs. New drive will popup on your pc, copy kernel_test_hdd7.zip contents on it
NOTE- you need zImage and initramfs.cpio.gz files, zip will not work
Click Ok to flash kernel.
4. Now boot to Special Developement Edition
NOTE- first boot will take longer (files must be copied) so don't panic
5. Do not delete archos.ext4.backup file from storage- this is a backup in case you have to do data wipe (Reset Android)
6. Enjoy

Usage:
To update system: copy archos.ext4.update file to storage and reboot
To wipe dalvik-cache: place an empty file wipe-dalvik.update in the storage and reboot- you can use djnilse's script
If you had to wipe data (Reset Android): don't worry, just reboot
If you had to format storage: make sure that when system boots

Download:
Kernel and initramfs
http://dl.dropbox.com/u/14106051/archos/kernel_hdd_test7.zip

smaller archos.ext4.update
This is shrinked suduru_petru's rooted firmware, now only 350MB
No other changes done
http://www.mediafire.com/?eqwlocit0nniw7k


"No busybox" archos.ext4
http://www.mediafire.com/?fzizmy60e769ow9
This is only rooted archos.ext4.update, custom busybox seems to make problems with USB host functions


Info for developers: http://xdaforums.com/showpost.php?p=22310057&postcount=13



Old version
What is changed
-dalvik-cache is wiped for every firmware update
-dalvik-cache wipe can be started manually

How does it work
Dalvik-cache wipe is higly recommended with every firmware update (or replacing stock with a modified one), also can help with app FC's.

For every firmware update- archos.ext4/squashfs.update file- dalvik-cache is wiped automatically (and you can't do anything about it )
To trigger dalvik-cache wipe on your own place a file named wipe-dalvik.update in internal storage (/data/media) and reboot.
NOTE: first boot after wipe will take longer

Installtion
Zip contains both zImage and initramfs.cpio.gz, installation as usual: Developer Edition Menu -> Flash Kernel and Initramfs then copy zImage and initramfs.cpio.gz to the new drive that pops up on the pc and click OK on the tablet.

DOWNLOAD
http://dl.dropbox.com/u/14106051/archos/kernel.zip
MD5: 8EB000BC1105A3613B35C8F82F35EF41

Info for developers: http://xdaforums.com/showpost.php?p=22179468&postcount=8

EDIT:
Script for easy creating wipe-dalvik.update file by djnilse: HERE

hitman72 said:

hi, Let's see if I understand correctly. for updating is necessary first copy new firmaware and empty file called "wipe-dalvik.update" in /data/media. reboot table in sde and copy zImage and initramfs.cpio.gz. rebooting and delete "wipe-dalvik.update". is correct? thank you

Click to expand...

Click to collapse

Not exactly.
When firmware is updated -archos.[...].update file- dalvik-cache is wiped anyway without any option not to wipe it.
Wipe-dalvik.update file is needed if you want to wipe dalvik-dache eg. when apps have a lot of FC's.

But in order to have possibility to wipe dalvik-cache you have to flash modified init posted here (for ease of use zImage is included in zip, flash it as usual)


tapatalked from Desire

djnilse said:

good work
this will be a better alternative for cleaning the system

Click to expand...

Click to collapse

Dalvik-cache wipe is included in all "standard" recoveries and it really can help in various situations (sometimes for bootloop also)

djnilse said:

i've made a script to write and remove the dalvik-wipe.update to storage

simply run it with ScriptManager or with a Terminal Emulator

this script doesnt need root rights

@gen_scheisskopf you could include a link to this in your post

and THIS IS NOT A test file
simply just rename it in dalvik.sh
run it with:

Code:

sh dalvik.sh

Click to expand...

Click to collapse

There is no need to remove wipe-dalvik.update, init does this just as with firmware .update files.

djnilse said:

and dont forget to hit the thanks button

Click to expand...

Click to collapse

Oh, c'mon......

djnilse said:

i worked for that about an hour, now i know more about linux shell scripts

and for the changes in the init
can it be modified with all kind of linux shell commands ???

Click to expand...

Click to collapse

Ask letama, he knows initrd best


tapatalked from Desire

I've checked supercharger script and honestly I'm not sure if it's absolutely safe to use:
-dalvik-cache wipe is done when Android does not run in every device I've layed my hands on (samsung i5700, htc desire, prestigio multipad 3384 and android hardware belonging to my friends)
-if dalvik-cache is not present system creates it during system boot
-supercharger wipes dalvik-cache also during system boot so there is a possibility of conflict between wiping and creating processes
Modified init wipes dalvik-cache before Android starts to boot so it is 100% safe, and djnilse created a nifty script to create wipe-dalvik.update file without pc access

New version in the first post
Should work good on HDD models also

thefunkaygibbon said:

How long is a long time?
I have had mine on the Archos logo for around an hour now, and just a little worried that it is not going through.

EDIT: I use the HDD model

Click to expand...

Click to collapse

Should be not more than a minute before bootanimation kicks in.
Did you boot to SDE with card inserted?

thefunkaygibbon said:

There is no card reader on the HDD model, so I have it on the root of the HDD (I think I have understood that right, but maybe not.)

Click to expand...

Click to collapse

Sorry, I didn't know that there is no SD slot.
Give me 5 minutes.

Corrected version of initramfs and updated instructions in the first post.

Sorry for trouble, Archos says that all G9 devices have SD card slot.

EDIT:
Bug fixed, please redownload (same link)

Another stupid bug fixed, please update
http://dl.dropbox.com/u/14106051/archos/kernel_hdd_test7.zip

philmein said:

i seem to have the file ext4 on my hdd and somwhere in my internal storage my internal storage has dropped by500mb

Click to expand...

Click to collapse

It's normal (as expected)

philmein said:

i know i should keep the one on my hdd but how do i get rid of the one in my internal storgage i would like to reclaim that space

i think its here /data/local/archos.ext4 but i cannot see it in astro or file manager

Click to expand...

Click to collapse

The one on HDD is a backup file (in case of wiping data).
You can't delete the one from flash- that is system image.
I can try to modify init so system file runs from HDD (not internal flash) but this may deplete your battery very fast

philmein said:

if its normal thats fine i still have 500mb free
i have hdd test 3 on mine is that ok do i just updat to hdd test 7 when a new rom comes out?

regards phil

Click to expand...

Click to collapse

Flash test7- it is updated version (cleaner work)