What device is rootfs on for backup via dd

Tilman Baumann tilman at baumann.name
Mon Jul 21 10:58:46 CEST 2008

Jim Morris wrote:
> Having failed to backup my rootfs via dfutils, I thought maybe I could..
>  > dd if=/dev/root of=/media/card/backup.bin
> But even though mount shows /dev/root as the root device. the actual dev does not exist.
> Anyone know what the device name for the actual rootfs is?

Its flash with a JFFS2 filesystem. This is not a block based filesystem.
I don't know if one even can dump these with dd.
There are probably special tools for that.

Use tar or rsync. ;)

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