Debuging kernel

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

use that uboot this will give you kernel output in lcd and also enable
tp4 tp5

2010/5/29 Rafael Ignacio Zurita <rafaelignacio.zurita at>:
> 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 :
> I have set console=tty0 in kernel .config. But, no luck, messages
> do not appear.
> If I boot a useful rootfs, for example from :
> 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
Open ultraportable & embedded solutions
Ben NanoNote, Arduino, Openmoko
Hey, watch out!!! There's a linux in your pocket!!!

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