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> Want To Change 2.6.24 Kernel To 2.6.23 Kernel 4 Angstrom C1000
Allelectrix
post Jun 23 2008, 03:27 PM
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Hi to all again,

I would very much like to know how to downgrade an OS Kernel, namely, Kernel 2.6.24 to 2.6.23 in
the Angstrom OS - how would I do this ? what tools do I need ?

Here is my GUESS:

a) open 'System Info' Applet get GCC version there
cool.gif install GCC version listed in the Applet (how do I do that ?)
c) Install kernel source code of 2.6.23
d) make zImage
e) load zImage to Card, replacing zImage that came with initrd.bin originally.
f) re flash C1000

Where am I wrong ?

I really need to know exact steps ... Is there a guide somewhere ?

many thanks, Allelectrix
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ofels
post Jun 24 2008, 06:47 AM
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Rather easy...

- Get the appropriate kernel modules from the Angstrom akita feeds (ipkg files) and install them
- download the corresponding kernel image
- rename the downloaded kernel image to zImage.bin
- put the kernel image and the updater.sh script to a FAT formatted CF or SD card
- make sure there is no initrd.bin on the root directory (because that would reflash the entire device)
- reflash the device (again, make sure in advance there is only the zImage.bin and updater.sh on the card, no initrd.bin)

Hope that helps.

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Allelectrix
post Jul 12 2008, 04:25 AM
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Posts: 85
Joined: 7-April 08
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QUOTE(ofels @ Jun 24 2008, 03:47 PM) *
Rather easy...

- Get the appropriate kernel modules from the Angstrom akita feeds (ipkg files) and install them
- download the corresponding kernel image
- rename the downloaded kernel image to zImage.bin
- put the kernel image and the updater.sh script to a FAT formatted CF or SD card
- make sure there is no initrd.bin on the root directory (because that would reflash the entire device)
- reflash the device (again, make sure in advance there is only the zImage.bin and updater.sh on the card, no initrd.bin)

Hope that helps.


thanks, yep... that worked all right ! however, does this mean we also need to reinstall matching kernel module versions
of the kernel modules that used to be in the 2.6.24 version so that we dont loose any fuctionality in our downgraded OS ?

I also note that the packagemanager still contains the kernel module names that were formally associated with IPKG
in the former 2.6.24 kernel version of our OS - I presume that these will need to be removed before we proceed with the
reinstall of the equivalent 2.6.23 kernel modules ?

thanks in advance for replying to this.

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