Debuging kernel

David Reyes Samblas Martinez david at tuxbrain.com
Sat May 29 18:43:13 EDT 2010


use that uboot this will give you kernel output in lcd and also enable
tp4 tp5 http://downloads.qi-hardware.com/people/xiangfu/tmp/openwrt-xburst-qi_lb60-u-boot.bin

2010/5/29 Rafael Ignacio Zurita <rafaelignacio.zurita at gmail.com>:
> Hello,
>  I need to read kernel messages on boot to debug Jlime.
>
> I am testing booting from microSD, and because I do not have
> all the necessary for this :
> http://en.qi-hardware.com/wiki/Serial_console
> I have set console=tty0 in kernel .config. But, no luck, messages
> do not appear.
>
> If I boot a useful rootfs, for example from :
> http://downloads.qi-hardware.com/software/images/Ben_NanoNote_2GB_NAND/latest/
> cat /proc/cmdline says :
> mem=32M console=ttyS0,57600n8 rootfstype...
>
> so I guessed that uboot has command line arguments inside. Is that right?
> If so, is there some way easier to set command line arguments than rebuilding?
>
> Thanks in advance.
>
> --
> Rafael Ignacio Zurita
>
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-- 
David Reyes Samblas Martinez
http://www.tuxbrain.com
Open ultraportable & embedded solutions
Ben NanoNote, Arduino, Openmoko
Hey, watch out!!! There's a linux in your pocket!!!




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