Step by step guide: 48Mhz kernel and MMC boot clone
 

This is done on 770. I do believe it is applicable to N800 and N810, just substitute the right files will be fine. And again, the qualification for following this guide is: You have to know how to flash your tablet if you *****up.

770: MMC boot with Chinook and 48 Mhz kernel added. I would like to document it so that I can follow myself easier if I have to do it again.

770, brand new flashed to SU-18-2008HACKER_4[1].2007.50-6_PR_F5_MR0_ARM (2008He), use 4.2008.7-1 (2007He) is fine, dl from http://tablets-dev.nokia.com/. And of course, internal flash boot to proceed.

Repositories added:

Eko one
http://eko.one.pl/maemo
bora
user

maemo chinook
http://repository.maemo.org/
chinook
free non-free

Testing maemo Extras
http://repository.maemo.org/extras-devel/
chinook
free

debfarm
http://p.quinput.eu/debfarm/
chinook
user

maemo Extras
http://repository.maemo.org/extras/
(leave this empty)
free non-free

Wardenclyffe
http://wardenclyffetower.com/maemo
chinook
user

and installed from app manager, becomeroot, emelfm2, DiskUsage.

Add Fanoush's 48 Mhz kernel, http://fanoush.wz.cz/maemo/, scrolled down to " Support for SDHC cards and higher SD/MMC speeds for Nokia 770", dl http://fanoush.wz.cz/maemo/kernel-sd...2006.49.tar.gz and http://fanoush.wz.cz/maemo/kernel_flasher.tgz; both files dl to the default folder, /home/user/MyDocs/.documents, or Document folder from file manager. DL onto internal flash, not mmc card. If you are tight in space, clean up, delete/move things from folders Audio clips, Documents (all the user manuals) Images, and Video clips. And anything NOT related to this operation, delete/move.

xterm
sudo gainroot
cd ~/Mydocs/.documents
tar zxvf kernel-sdhc-48MHz-3.2006.49.tar.gz (this generated zImage-48MHz)
tar zxvf kernel_flasher.tgz
cp zImage-48MHz ~/MyDocs/.documents/kernel_flasher
cd kernel_flasher
./kernel_flash zImage-48MHz

This kernel flash leaves your apps intact. And if you know something about emelfm2 and installed correctly, you can have this all done on emelfm2, no command line.

Some good links, http://www.internettablettalk.com/fo...cessful+kernel.

Clone to mmc, I use 1 G Rs-MMC, use PB's clone scripts, http://www.internettablettalk.com/fo...ad.php?t=20534.
Scrolled down to "SCRIPT UPDATED 11:30EST 5/29/08, http://penguinbait.com/install-tools-ad.tgz and dl the install-tools-ad.tgz into flash, not MMC card.

Place in /root
open xterm
cd /root
tar zxvf install-tools-ad.tgz
This will then make /root/install-tools (it has to be in this location to work)
cd /root/install-tools
Now, carefully read PB's instructions regarding INTERNAL-txt.EXAMPLE and EXTERNAL.txt-EXAMPLE. The 770 has only one SD slot and is internal for the cloning. turn off swap file. Edit the INTERNAL.txt.EXAMPLE to your likeness, and rename it to INTERNAL.txt, and delete EXTERNAL.txt-EXAMPLE; This is my INTERNAL.txt file for a 1 G RS-MMC
" FAT 300
SWAP 128
1 ext2
TIMEOUT 10"

This should generate a ext2 600 MB and Fat 300 MB and SWAP file. and now,
Check:
There is only 1 SD card, right?
swap memory, uncheck, right?
INTERNAL.txt/EXTERNAL.txt only one exists, right?
Now you ready to go

./clone.sh

and wait.......; time to finish, with 48 Mhz kernel, 6.5 minute; without 48 Mhz kernel, 48 min.
Reboot and to add 64 MB swap file, with 48 Mhz kernel takes 7 min to make the 64 MB swap file; without 48 Mhz kernel, it takes 13 min to make the 64 MB swap file.

End product: a 770 running chinook+48Mhz on internal flash and MMC boot with chinook+48 Mhz and with over 300 MB for app installation. I believe, the 770 is more hungry for app installing space than the N8x0 as they have only 128 MB.

And the 770 is running just as peppy as my N810.

And now I will flash my 770 to 2007He and clone it to my 2G RS-MMC card.

My final configuration of my 770: 2007He on internal flash, 2008He on MMC and 2007He on MMC, both for ample app installation space, both over 300 MB space.

That's all folks.

bun

Re: Step by step guide: 48Mhz kernel and MMC boot clone
 

Can I send my N770 to you so you can take care of it ? ;)
I will try this on mine. Thanks!

Re: Step by step guide: 48Mhz kernel and MMC boot clone
 

Absolutely YES. I love to play with it. But.......you? nhanquy? You are being humble. I learned most of my stuff from you. As a matter of fact, you read it carefully you can see where I plagerize from your posting :).

Again, anybody feel free to mail me your 770 I will be more than happy to take care of it, provide that it is NOT 100s of them :) .

Or, if problem, post here, we will help you.

bun

Re: Step by step guide: 48Mhz kernel and MMC boot clone
 

rootsh is in Extras, might as well use that over becomeroot.

Re: Step by step guide: 48Mhz kernel and MMC boot clone
 

so, just to show my newbieness - what would this do for an N8x0?

Re: Step by step guide: 48Mhz kernel and MMC boot clone
 

It will make your N8x0 goes faster when accessing the SDHC card, may not be 5X like the 770, YMMV. And will ends with MMC boot with your choice of storage space. The main reason for MMC boot is 1) you can always fall back to internal flash if you messed up your OS as you are playing with the cloned OS from MMC 2) as much space as you want for app installation.

bun

Re: Step by step guide: 48Mhz kernel and MMC boot clone
 

Not necessarily, and definitely not consistently. . . .

Re: Step by step guide: 48Mhz kernel and MMC boot clone
 

I think it definitely guarantee to make "accessing SDHC" faster, whether that translates to practical use is another issue, that is why "YMMV". Over the last two years, people has reported from "the best thing ever happened" to "no noticebly difference", as a matter of fact, I was in the "nay" camp. GA, you would like to comment about this?

On the 770, as in thread #1:
___________________________
and wait.......; time to finish, with 48 Mhz kernel, 8.5 minute; without 48 Mhz kernel, 48 min.
Reboot and to add 64 MB swap file, with 48 Mhz kernel takes 7 min to make the 64 MB swap file; without 48 Mhz kernel, it takes 13 min to make the 64 MB swap file.

End product: a 770 running chinook+48Mhz on internal flash and MMC boot with chinook+48 Mhz and with over 300 MB for app installation. I believe, the 770 is more hungry for app installing space than the N8x0 as they have only 128 MB.

And the 770 is running just as peppy as my N810
_________________________________________________

I think this is better than any benchmark test!


bun

Re: Step by step guide: 48Mhz kernel and MMC boot clone
 

wow! I almost gave up my N770. Just to have it as a collection item ;) ! But after installing the kernel into the flash, the N770 is very responsive, very snappy!

My flash OS is 2007HE version 4.2008.7-1 and it is still OK. My N770 is dual-booting. The MMC OS doesn't show up but I think OS2008. Both are very snappy!

btw, bun, your link for the kernel_flasher is wrong. Please get rid the ";" at the end!

Re: Step by step guide: 48Mhz kernel and MMC boot clone
 

http://intr.overt.org/4.2008.23-mmc-kernel/

Is this kernel the same as fanoush's 48Mhz kernel ?