Moving boot hard drive from one workstation to another

[Michael D'Aulerio]

This has probably been asked and answered but I can't seem to find the thread.
I installed a B180 w/ HP-UX 10.20 in a disk carrier hooked up to an external SCSI chassis. Since then we lost the external chassis and I had to put the drive inside the B180 case. It won't boot because the H/W address the drive boots from now is different from when it was installed.
Is there any way to fix it so the drive will boot again?

[DCE]

Have you tried interupting the boot process, and interacting with the ISL?

at the ISL prompt type HPUX.

The AUTO string on the boot disk may contain the old drive address. If the above process wors, then you will have to redefine the AUTO string with the mkboo -a command

[Kent Ostby]

Interrupt at the "10 second" window.
Do a search until you see the disk
type:
path pri (This will fix things
for future boots)
bo
and interact with ISL
type: hpux

You can set the boot path from

mkboot -a "hpux" /dev/dsk/

Best regards,

Oz

[Torsten. · Accepted solution]

Hi Michael,

to configure the new HW address you can try this:

Stop the boot process at ISL. Then boot the system in maintenance mode (hpux -lm). Install new device files for your disk (insf -H -e). Now note vg's minor number and export the vg (ll /dev/*/group and vgexport -v -m /tmp/vg##.map vg##).
Import the VG:

# mkdir /dev/vg##
# mknod /dev/vg##/group c 64 0xXY0000
# vgimport -v -m /tmp/vg##.map vg##

Update boot information:
# lvlnboot -r /dev//lvol3
# lvlnboot -b /dev//lvol1
# lvlnboot -s /dev//lvol2
# lvlnboot -d /dev//lvol2
# lvlnboot â v

Check the results:
# vgchange -a y vg##
# vgdisplay -v vg##

Reboot!

HTH!

[Andrew Rutter]

hi,

its probably just down to the scsi id's of the drive.

the exteranl box probably had a switch on the back to change this and was connected to the drive internally.

now you have the drive out there will be no jumpers on the drive to set the scsi id.

remove the drive from the workstation again and put some jumpers on the drive to set the id to what it was when the install was done.

the default id for the drive should have been 6? can you remember.

also it may still boot if you just interupt the boot at pdc level and search for bootable devices. select the drive and boot this. If this works ok then you can just change the boot path at pdc to amtch the disk so when you turn the workstation on it boots up into hpux

andy

[Florian Heigl (new acc)]

in the worst case You'll have to look into the ioconfig file, but I don't think You'll get into such issues as long as the hardware model is identical.

also You might want to fix /stand/bootconf , but this shouldn't be too much of an issue.

[Michael D'Aulerio]

Thanks for all the suggestions. I'm going to try them and assign points later today.

[Leif Halvarsson_2]

Hi,

If I remeber correct, the B180 uses the same SCSI buses for internal and external drives. There is two buses, one NSE and one WSE. So, all you need to do is to find some jumpers so you can set the the SCSI ID to the same as it was set in the external box.

[Michael D'Aulerio]

Torsten,

Your procedure worked like a charm. You obviously have done this before.

I only had to change one thing. I had to run 'vgchange -a y' to activate the volume group before running the lvlnboot commands. The first time the system booted up after the procedure it rebooted by itself. After that, it worked like a champ.

Thanks also to all the others who responded.