26 Nov
2007
26 Nov
'07
9:47 a.m.
In message 474A7B02.9090008@coritel.it you wrote:
I'm using two Linux kernel a fallback (safe) kernel and a kernel downloaded in flash via ethernet. I'd like that u-boot starts the downloaded kernel, if this kernel fails for more than N times uboot starts the fallback. Is there already something like in uboot or how can I do that?
U-Boot supports the "bootcount" variable to implement the Boot Count Limit feature (see CGL Requirements Definition). However, this requires a little processor specific support which so far is available only on few CPUs (but trivial to add where missing).
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
If you can't beat it or corrupt it, you pretend it was your idea in
the first place. - Terry Pratchett, _Guards! Guards!_