How copy an OS disk ?

[OLIVA_1]

Hello,

I have 2 servers (S1 and S2) and I need to install S2 as S1. Unfortunately I haven't got a tape driver on S2 so I can't use an ignite tape.

I have plugged a disk of S1 into S2 and I would like copy S1 OS disk like that:

dd if=/dev/rdsk/c0t5d0 of=/dev/rdsk/c0t10d0 bs=1024

Do you know if this should be work ? Will c0t10d0 disk be bootabled ?


Thanks,

[OLIVA_1]

I made a mistake...
---> I have plugged a disk of S2 into S1

[doug mielke]

the dd will work, but you'll need to confirm the drive names with ioscan -fnC disk.
A mistake here could wipe the ariginal drive.

[A. Clay Stephenson]

Yes, that will produce a bootable disk but you should increase bs to something larger so the copy will go faster. e.g. bs=1000k. In order for this scheme to work, you must set the SCSI ID of the target drive to match the source drive when you install it in the second server. I also assume that your two servers are identical (or very nearly so). Note, the IP addresses will be identical so one of these must be disconnected from the network until you can assign a new IP addrerss. Because you are doing this copy on mounted filesystems, an fsck will be done on the target machine; you should also do this copy when the machine is an inactive as possible.

Have you considered make_net_recovery?

[Steven E. Protter]

This sounds like a job for Ignite or mirror/ux

pvcreate -B /dev/rdsk/c1t0d0 #use real disk

mkboot -l /dev/rdsk/c1t0d0
mkboot -a "hpux -lq (;0)/stand/vmunix" /dev/rdsk/c1t0d0 # use real disk


# mkboot -b /usr/sbin/diag/lif/updatediaglif -p ISL -p AUTO -p HPUX -p PAD -p LABEL /dev/rdsk/c?t?d?

If you are running 64-bit OS:

# mkboot -b /usr/sbin/diag/lif/updatediaglif2 -p ISL -p AUTO -p HPUX -p PAD -p LABEL /dev/rdsk/c?t?d?


vgextend /dev/vg00 /dev/dsk/c1t0d0 # same thing
lvextend -m 1 /dev/vg00/lvol1 /dev/dsk/c1t0d0

# real disk. repeat for other lvols

lvlnboot -r /dev/vg00/lvol3 # root fs /
lvlnboot -s /dev/vg00/lvol2 #swap
lvlnboot -d /dev/vg00/lvol2 #swap/dump
lvlnboot -b /dev/vg00/lvol1
lvlnboot -R
lvlnboot -v
setboot
setboot -a 52.1.0 # second disk

SEP