topic Which disk did I boot from? in Operating System - HP-UX

Which disk did I boot from?

Darrell Allen — Tue, 05 Jun 2001 18:18:46 GMT

Hello everyone,

I'm using MirrorDisk on 11.0. I've successfully mirrored the boot disk and booted from it but I haven't found a way to tell which disk I'm currently booted from. Is there a command that will tell me that?

Thanks.

Re: Which disk did I boot from?

Kandaswamy Natarajan — Tue, 05 Jun 2001 18:23:05 GMT

#setboot
this command will give you the primary boot path and secondary boot path of the PDC .
the primary boot path is where the system will use for booting,
once you have booted it doesnt matter where you booted from.
(this is assuming you hv done your mirroring correctly).

Re: Which disk did I boot from?

MANOJ SRIVASTAVA — Tue, 05 Jun 2001 18:27:53 GMT

Hi Darell

1. setboot
2. lvlnboot -v

Manoj Srivastava

Re: Which disk did I boot from?

James R. Ferguson — Tue, 05 Jun 2001 19:34:09 GMT

Hi Darrel:

# echo boot_string/S|adb /stand/vmunix /dev/mem

This will show you the actual path from which you booted.

...JRF...

Re: Which disk did I boot from?

Peggy Fong — Tue, 05 Jun 2001 19:35:12 GMT

Hi

While setboot tells you primary path and alternate path it doesn't tell you if someone booted from which path.

When you do lvlnboot -v /dev/vg00 does the order of the disks change (boot disks) when you boot from the mirror disk? If so, that would be one way to check.

No guarantee but try lssf /dev/root
lssf /dev/rroot since this is accessed prior to LVM may be the hardware address will point to the disk that was booted.

As mentioned previously, it should matter which disk was used...but you never know :)

Hope this helps
Peggy

Re: Which disk did I boot from?

federico_3 — Wed, 06 Jun 2001 05:32:34 GMT

Use setboot

Re: Which disk did I boot from?

Vincenzo Restuccia — Wed, 06 Jun 2001 07:20:07 GMT

setboot see the disk of boot and alternate boot,with lifcp /dev/dsk/cxtyd0:AUTO - you can see the lif area of boot.

Re: Which disk did I boot from?

Bill McNAMARA_1 — Wed, 06 Jun 2001 07:33:30 GMT

have a look at the dmesg output after boot.

Later,
Bill

Re: Which disk did I boot from?

Darrell Allen — Wed, 06 Jun 2001 12:38:45 GMT

Thank you all for replying. I appreciate all of them however James gets the gold star as his answer to the question was dead on.

Darrell