help request, jffs2 fs files get lost

Ricard Wanderlof ricard.wanderlof at axis.com
Mon May 2 02:55:10 EDT 2011


On Sun, 1 May 2011, Angelo Dureghello wrote:

> So from uClinux, i try to prepare the jffs2 fs:
>
> # eraseall /dev/mtd2
> erased 1024 Kibyte @ 0 -- 100% complete.
>
> cat /dev/mtd2    i see the flash has been cleared
>
> then i create a folder "backup" in /var with some files and try to crete the jffs2 fs:
>
> mkfs.jffs2 -d backup -o jffs2.img
>
> cp /deV/mtd2 jffs2.img

If this is in fact what you're doing, you're overwriting your jffs2.img 
file with the all-ff's contents of the newly erased /dev/mtd2. Swap the 
two arguments instead.

/Ricard
-- 
Ricard Wolf Wanderlöf                           ricardw(at)axis.com
Axis Communications AB, Lund, Sweden            www.axis.com
Phone +46 46 272 2016                           Fax +46 46 13 61 30



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