topic Re: How can I determine which drive the server has booted from? in Operating System - HP-UX

How can I determine which drive the server has booted from?

Paul F. Bennett — Tue, 22 Jul 2008 18:52:17 GMT

I have a 11.23 hpux server with a mirrored boot drive/lvols. How can I determine which boot drive the 11.23 system has booted from after its booted up and running? I think I can pull the info from the running kernel but i dont remember how?

Re: How can I determine which drive the server has booted from?

James R. Ferguson — Tue, 22 Jul 2008 18:59:07 GMT

Hi:

# echo "boot_string/S" | adb -o /stand/vmunix /dev/kmem

Regards!

...JRF...

Re: How can I determine which drive the server has booted from?

Kenan Erdey — Tue, 22 Jul 2008 18:59:43 GMT

Hi,

setboot command shows primary and alternate bootpath. if you didn't choose boot path primary is your booted disk.

Kenan.

Re: How can I determine which drive the server has booted from?

Tim Nelson — Tue, 22 Jul 2008 19:04:54 GMT

FYI, the 11.11 method with adb does not work on 11.23.

I believe if you search this forum that no one yet has found a definate way to indicate the HW path of the booted disk.

kcpath only gives you the path to the kernel.

searches through the kernel vars have yet to find a valid entry

but maybe a result will be forthcoming.

Re: How can I determine which drive the server has booted from?

Tim Nelson — Tue, 22 Jul 2008 19:10:08 GMT

I guess never say never.

Sometimes we make life harder than it needs to be.

try this.

grep Boot /var/adm/syslog/syslog.log

Re: How can I determine which drive the server has booted from?

Robert-Jan Goossens — Tue, 22 Jul 2008 19:17:17 GMT

Paul,

Have a look at this thread.

http://forums12.itrc.hp.com/service/forums/questionanswer.do?admit=109447627+1216757588124+28353475&threadId=995369

Regards,
Robert-Jan

Re: How can I determine which drive the server has booted from?

James R. Ferguson — Tue, 22 Jul 2008 19:18:49 GMT

Hi (again):

> Tim: FYI, the 11.11 method with adb does not work on 11.23.

Well, it works for 11.23 PA-RISC, but then:

http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1115665

Regards!

...JRF...

Re: How can I determine which drive the server has booted from?

Tim Nelson — Tue, 22 Jul 2008 19:24:36 GMT

Sorry Jim, thank you for the correction, all my 11.23s are Itanium and I should be careful stating an abosolute.

Re: How can I determine which drive the server has booted from?

Paul F. Bennett — Tue, 22 Jul 2008 19:42:40 GMT

This worked on 11.23 Itanium:

# echo "bootdev/x"|adb - \ n /stand/vmunix /dev/kmem
bootdev:
0x1f032002

# ll /dev/dsk |grep 32002
brw-r----- 1 bin sys 31 0x032002 Dec 30 13:35 c3t2d0s2

Thanks all!