Need help with backup shell script
Jim Bow
jimbow at darq.net
Wed Jan 16 08:42:50 PST 2008
Andreas Widerøe Andersen wrote:
> #!/bin/sh
>
> MOUNT=/external
> DATE=`date +%Y%m%d%H%M`
>
> mount /dev/da0 $MOUNT #Change device name
> find $MOUNT -mtime +30 -delete
> mkdir $MOUNT/$DATE
> rsync -rlpgoD /backup/ $MOUNT/$DATE
> umount /external
>
> When I try to run my script I get this prompt back:
>
> mount: /dev/da0 on /external: incorrect super block
This fails because you are trying to mount the raw(?) drive and mount is
unable to detect what file system it is (by looking at the partition's
super block).
> Am I doing something wrong here or do I need to I need to use one of the
> other from /dev:
You want to use /dev/da0s1d - the main partition on slice 1 on the drive.
Sorry, I dont remember the explanation as to why you must use da0s1d
instead of da0s1c, but it goes something along the lines of c partition
being a shorthand notation for the entire slice, whereas letter d marks
the first partition on the slice.
Maybe someone here can clarify this?
Hope this helps.
Jim Bow
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