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-   -   HOWTO: Change, remove or add u-boot on power kernel image (https://talk.maemo.org/showthread.php?t=65776)

cfh11 2010-11-24 15:11

Re: HOWTO: Change or remove u-boot on power kernel image
 
Quote:

Originally Posted by Radicalz38 (Post 881278)
It might also be worth mentioning that you would miss a couple of patches and fixes other than uboot when downgrading from v45 to v42. :D

well, thats what changelogs are for.

Mentalist Traceur 2010-11-25 20:37

Re: HOWTO: Change, remove or add u-boot on power kernel image
 
Matan, is that binary for arm? Downloading it to the N900, making executable, and running, results in error:
Code:

line 1: syntax error: word unexpected (expecting ")")
(I moved it to sbin and run it from there, in case it makes any difference.)

Also, the instructions say to use "-a 80008000" and "-e 80008000" options. Is this still valid since your uboot in the u-boot-for-power-kernel package is padded to just 0x38000 instead of 0x40000?

zimon 2010-12-04 13:31

Re: HOWTO: Change, remove or add u-boot on power kernel image
 
Does u-boot change the bootloader section of the NAND memory in N900 any way? (/dev/mtd0)

Fabry 2010-12-06 00:35

Re: HOWTO: Change, remove or add u-boot on power kernel image
 
Fixed "How-to add u-boot Matan's version:" guide adding the missing step

Fabry 2010-12-06 00:54

Re: HOWTO: Change, remove or add u-boot on power kernel image
 
Quote:

Originally Posted by zimon (Post 889102)
Does u-boot change the bootloader section of the NAND memory in N900 any way? (/dev/mtd0)

NoLo bootloader (/dev/mtd0) is not modified in no way.

This is a chainloading method to start u-boot without removing old bootloader.
NoLo loads a fake zImage kernel image which contains u-boot plus a kernel (in uImage format) and runs this image.
So NoLo really starts-up u-boot which then starts-up kernel (already loaded in memory)

Fabry 2010-12-06 18:07

Re: HOWTO: Change, remove or add u-boot on power kernel image
 
Quote:

Originally Posted by Fabry (Post 890248)
Fixed "How-to add u-boot Matan's version:" guide adding the missing step

Fixed "How-to remove u-boot:" guide also

Brock 2011-02-25 18:18

Re: HOWTO: Change, remove or add u-boot on power kernel image
 
Hi!
I have tested meego 1.2 and for this, i also have installed uboot. now i dont want to test meego anymore, but i dont know how i can remove uboot. can anyone help me with this problem without reflashing? as far as i know i dont have power kernel installed, its still the original kernel.

*edit*
if i try it with apt-get remove uboot-pr13 it tells me that its not installed.

with apt-cache search uboot i found 2 entries: uboot-mkimage and uboot-power-46 with the message below it:
to remove this again, "apt-get install --reinstall kernel-power kernel-power-flasher" and reboot. does it mean that i have the power kernel installed? should i try this command? and whats the power kernel? Sorry for my stupid questions ;)

*edit* if i enter the mentioned command, it tells me that after it 10mb of additional space will be used. sounds strange to me. please help!

Brock 2011-02-25 19:39

Re: HOWTO: Change, remove or add u-boot on power kernel image
 
Quote:

Originally Posted by Brock (Post 955407)
Hi!
I have tested meego 1.2 and for this, i also have installed uboot. now i dont want to test meego anymore, but i dont know how i can remove uboot. can anyone help me with this problem without reflashing? as far as i know i dont have power kernel installed, its still the original kernel.

*edit*
if i try it with apt-get remove uboot-pr13 it tells me that its not installed.

with apt-cache search uboot i found 2 entries: uboot-mkimage and uboot-power-46 with the message below it:
to remove this again, "apt-get install --reinstall kernel-power kernel-power-flasher" and reboot. does it mean that i have the power kernel installed? should i try this command? and whats the power kernel? Sorry for my stupid questions ;)

*edit* if i enter the mentioned command, it tells me that after it 10mb of additional space will be used. sounds strange to me. please help!

i found the solution for my problem. it was:
"apt-get install --reinstall kernel kernel-flasher"

now i dont see the penguin anymore.

qwazix 2011-03-07 19:12

Re: HOWTO: Change, remove or add u-boot on power kernel image
 
I've been trying to do this with the power46wl kernel but the device never boots. It shows the little penguin, u-boot times out, the correct kernel is shown, it says linux kernel uncompressed the size and all that but it stays on "loading kernel" forever. I tried both matan's u-boot and one I compiled myself with the instructions here http://elektranox.org/n900/kernel/uboot.html and also the method mentioned in this thread and the builder.py in the link but nothing works. Has anyone made the combined u-boot+power46wl image and can share it?
________
bald ***** Webcam

qwazix 2011-03-28 16:19

Re: HOWTO: Change, remove or add u-boot on power kernel image
 
sorry to bump this but I am trying to build a power46wl with u-boot but I constantly fail. Does anybody have it working and can share it?
________
Depakote pregnancy


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