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i.mx28 2.6.35.2  - updating kernel whilst running

Question asked by Dave Evans on Oct 7, 2013
Latest reply on Feb 26, 2014 by Yixing Kong

Hi all,

 

CPU: i.mx287

kernel: 2.6.35.3

LTIB

using boot stream but could use uboot.

 

I have an i.mx28 board based on the 28evk it has 2 sd cards slots, 1 for the booting (root fs and running kernel etc) and the other for application config file and sometimes kernel/driver updates.

 

What I'm seeking is a method to update/change a running kernel from the second sd card, how could i do this, is there a general method?

 

On a desktop I could replace/rename files in /boot and update /lib/modules whilst running (I think).

I've read a little about kexec as a possible solution.

 

Is there a better way to do this?

 

Any help or pointer links would be most appreciated.

 

Regards,

Dave

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