1,Attmpt to boot the disk in LVM maintenance mode
ISL> hpux -lm (;0) /stand/vmunix
The steps that follow will not apply in all situations, nor will the order of the commands presented be applicable in all cases. You must read and analyze error messages to arrive at a solution.
The following assumptions will apply to the commands that follow: the root volume group is vg00; and the root logical volume is lvol1. If this is not the case, substitute the system's root volume group and root logical volume when typing the commands.
the key things to accomplish are:
a. Restore or updata LVM data structures
b. Make the root volume group available
2,Use vgcfgrestore to restore a current backup of LVM data structures(PVRA, VGRA, and BDRA) to vg00
# vgcfgrestore -n vg00 /dev/rdsk/cxtxdx
3,Attempt to make the root volume group available.
# vgchange -a y /dev/vg00
4,The following will update LIF's LABEL file with information contained in the Boot Data Reserve Area.
# lvlnboot -R /dev/vg00
5,Make sure all LVM disks are powered, then use vgscan to rebuild the /etc/lvmtab file.Many LVM commands depend on the information contained in this file.
# mv /etc/lvmtab /etc/lvmtab.bk
# vgscan -v
Once the root volume group LVM data structures have been replaced or updated and the volume group is available, the system should boot normally.
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