Dear Arno Steffen,
In message 804f0d21001130702x2aaa39e8t8677d5360885caa8@mail.gmail.com you wrote:
To make a more stable system I want to put a second reduced linux (kernel/rootfs) onto flash memory. This should be boot automatically, if #1 fails for any reason.
This is a standard mode of operation, and well documented. See the example in the FAQ: http://www.denx.de/wiki/view/DULG/CommandLineParsing#Section_14.2.16.3.
I tried to add this in bootcmd, but execution will be interuppted if the first bootm failes.
You must have done something wrong.
Is there any chance to do so?
Sure.
(maybe it is even possible to compile this into bootloader, in case uboot environment gets corrupted/misconfigured)
We use redundant environment with checksums to prevent this.
Best regards,
Wolfgang Denk