[mshulman1980]

Is it possible to write a mksysb image that I've saved to an nfs share
to a bootable tape from the machine with the NFS share?
Basically I'm looking to have a disaster preparedness strategy, so in
the event of a system crash, I could write the weekly mksysb from the
NFS share to tape and recover the OS from that.

[levendp]

Hello...

Just curious. How many replies did you gte to thjis question?

Thanks Much,

[mshulman1980]

quite a few off board.. the resolution was to go with a NIM environment. I couldn't use it at first because I had it attached to 2 networks, which led to it getting confused with the gateways. Once I removed that factor it worked nearly perfectly.
The general consensus otherwise was that it's possible to write bootable tapes from other systems, but it's not worth the effort.

[kierong]

This is a formula I had from some time ago. It may still work.

on the server that the image is from:
# cd /
# mkszfile
# vi the bosinst.data file and make sure PROMPT = yes
# echo 512 NONE >/tapeblksz
# mkinsttape /tmp/2nd.image

This will place all the system files required on the 2nd image of the
mksysb tape to a file.

Next we transfer the /tmp/2nd.image file to the NFS server and placed it into /tmp, then on the NFs server run the following:

# chdev -l rmt0 -a block_size=512
# echo "Dummy Install Image" |dd of=/dev/rmt0 bs=512 conv=sync
# tctl rewind
# tctl -f /dev/rmt0.1 fsf 1
# dd if=/tmp/2nd.image of=/dev/rmt0 bs=512
# tctl rewind
# tctl -f /dev/rmt0.1 fsf 2
# echo "Dummy Install Image" |dd of=/dev/rmt0 bs=512 conv=sync
# tctl rewind
# tctl -f /dev/rmt0.1 fsf 3
# dd if=/backup/mksysb.image of=/dev/rmt0 bs=512

boot off CD and restore from tape if restoring to a server with different hardware.