Vytas Janusauskas <vytas AT dendron DOT com> wrote in message
<[email protected]>

> Hi  All,
> 
> I had a failure of my Amanda index drive.  I am now trying to restore some

> archives.  What I have done so far is the following:
> 
> Ran amrestore to get a listing of tape contents
> dendron:/mnt/dump_drive/restore# mt -t /dev/nst0 rewind
> dendron:/mnt/dump_drive/restore# amrestore /dev/nst0 no.such.host
> amrestore:   0: skipping start of tape: date 20050304 label Project223
> amrestore:   1: skipping 
> dendron.l8r.net._mnt_vxa2_scans_c_Seven__Pent22.20050304.0
> amrestore:   2: skipping 
> dendron.l8r.net._mnt_vxa2_scans_c_Seven__Unix.20050304.0
> amrestore:   3: skipping 
> dendron.l8r.net._mnt_vxa2_scans_c_Seven__Pent21.20050304.0
> amrestore:   4: skipping 
> dendron.l8r.net._mnt_vxa2_scans_c_Seven__Final__Sids.20050304.0
> amrestore: could not fsf /dev/nst0: Input/output error
> 
> determined that what I need is in file 
> 2:   dendron.l8r.net._mnt_vxa2_scans_c_Seven__Unix.20050304.0
> 
> So I:
>   mt -t /dev/nst0 rewind
>   mt -t /dev/nst0 fsf 2
> dd if=/dev/nst0 bs=32k count=1
> 
> This list the following:
> 
>   AMANDA: FILE 20050304 dendron.l8r.net /mnt/vxa2/scans/c/Seven_Unix lev 0

> comp .gz program /bin/tar
> To restore, position tape at start of file and run:
>          dd if=<tape> bs=32k skip=1 | /bin/gzip -dc | bin/tar -f... -
> 
> So I rewind the tape skip 2 files and then issue:
> 
> dd if=/dev/nst0 bs=32k skip=1 | /bin/gzip -dc | /bin/gtar -f  ????
> 
> I tried various things as substitutes for ????  such as 
> /mnt/vxa2/scans/c/Seven_Unix and
>                dendron.l8r.net._mnt_vxa2_scans_c_Seven__Pent22.20050304.0
> 
[snip]

Ha! I asked exactly the same thing last week. You should try the archives!

Anyway, the dash at the end of the command is significant; it means to take
the gtar input from stdin (i.e. the pipe). It'll expand the archive into the
current directory. No file names required.

I used ... gtar -xpvf -

-- 
Tony van der Hoff        | mailto:tony AT vanderhoff DOT org
Buckinghamshire, England