HP-UX HB v13.00 Ch-04 - System Recovery

HP-UX Handbook – Rev 13.00 Page 39 (of 54)
Chapter 04 System Recovery
October 29, 2013
Please remember to take a backup using the vgcfgbackup command after activating
the volume group.
# vgchange -a y /dev/vg00
Activated volume group
Volume group "vg00" has been successfully changed.
15. Perform a fresh vgcfgbackup(1M) of your root VG.
# vgcfgbackup /dev/vg00
Volume Group configuration for /dev/vg00 has been saved in /etc/lvmconf/vg00.conf
16. Reboot the system to Multi User Mode (see Co-Procedure). Additional tasks like
mirroring the root VG may be necessary later on.
# reboot
Different Boot Modes for Different Machine Types
In this section we summarize how different types, of machine can be booted from alternate disks,
from alternate kernels, to LVM Maintenance Mode and to Single User Mode. Please note the
exact messages may vary depending on firmware releases.
ATTENTION: The boot process is different on Itanium system. Refer to the Itanium chapter.
Series 700: Alternate Disk Boot
Step
Action
Interrupt the boot process
Hit the escape key when the following message appears:
Searching for a system to boot, press and hold the escape key to override
Boot from an alternate disk
At the menu, type:
boot PATH
where PATH is the physical path of the disk you want to boot off of
Answer "y" to:
interact with ISL ?(if asked)
Example: boot 52.5.0
Series 700: Alternate Kernel Boot
Step
Action
Interrupt the boot process
Hit the escape key when the following message appears:
Searching for a system to boot, press and hold the escape key to override
Boot from primary path and
interact with isl
At the menu, type:
boot pri isl
Answer "y" to:
interact with ISL ?
Enter boot command
At the ISL prompt type: