[U-Boot] Backup Booting

Wolfgang Denk wd at denx.de
Tue Jan 27 16:41:34 CET 2009


Dear Pawel Pastuszak,

In message <8ff29df80901270734h2791b9f3qf72b99830860cf4d at mail.gmail.com> you wrote:
> 
> I was wondering if there is any think like backup booting and secondary
> image for example lets say i am booting an image and it fails CRC check
> etc... i want to to validate that the backup image is good and then
> overwrite the current image with the backup image  and be able to boot of
> the backup image.

Yes, there is such a thing, and you would know it if you had read the
manual.

>  Second option of failure is image start booting and it fails in middle of
> booting maybe watchdog kicks in and reset the board. Is there a way to tell
> image fail booting and uses back instead.

Yes, there is such a thing, and you would know it if you had read the
manual.

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 at denx.de
"Nobody will ever need more than 640k RAM!"       -- Bill Gates, 1981
"Windows 95 needs at least 8 MB RAM."             -- Bill Gates, 1996
"Nobody will ever need Windows 95."             -- logical conclusion


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