Making disk bootable

[Mihails Nikitins]

Hi.

Problem. One of mirrored root disks is not bootable.

Question. Is it possibe to make it bootable without breaking mirror and recreating physical volume with 'pvcreate -B'.

# lifls -l /dev/rdsk/c2t2d0
volume c2t2d0 data size 29 directory size 1 05/11/02 18:18:37
filename type start size implement created
===============================================================
LABEL BIN 8 8 0 05/11/02 18:18:37

# mkboot -l /dev/rdsk/c2t2d0
There appear to be non-boot logical volumes on this device.
Overwriting them could destroy all the data on this device

Thanks and points in advance for your comments!

[Arunvijai_4]

Check this thread,

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=724247
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=775200

-Arun

[Adisuria Wangsadinata_1 · Accepted solution]

Hi,

If at the first time, you didnt use '-B' option when you did pvcreate; this mean you need to do re-mirror again from the first step. That means you need to make it bootable by breaking the mirror and recreating physical volume with 'pvcreate -B' again.

Breaking the mirror and recreating physical volume only destroy all the data in the mirror disk. This mean you didnt destroy the data on the primary disk, and this can be done online.

After mirroring process, dont forget to check the LIFS files on the mirror disk and try to test the boot disk by boot on the alternate disk (mirror disk).

Below is the url (docID : LVMKBRC00005103) about 'How to create a Mirrored Boot Disk on PA-RISC System - Cookbook' :

http://www1.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000080811535

Hope this information can help you.

Cheers,
AW

[Luk Vandenbussche]

Hi,

I don't know which procedure you used.
But perhaps is better to break the mirror

lvreduce -m 0 /dev/vg00/lvolx

and restart the mirroring,
use the script attached

[Devender Khatana]

Hi,

Was it not bottable anytime or has become umbootable now?

If it was not bootable then did you gave

#lvlnboot -R

HTH,
Devender

[Fred.Wu]

pvcreate -B will destroy your data, it's better to re-mirror.

[RAC_1]

Break the mirror and reduce that pv from vg00. Now repeat all the procedure and mirror again.

[Borislav Perkov]

Hi Mihails,

You can't make it without breaking mirror and recreating physical volume.
mkboot command cames after including the disk in the volume group.

Regards,
Borislav

[Mihails Nikitins]

Thanks for you replies. I don't know about commands used for initializing the problem disk. Probably, '-B' was forgotten. Do you know any method to make sure that '-B' was omitted?

I'll come back with points later.

[Mihails Nikitins]

Thank you.