Recovery by Booting from Recovery Media

If there is a failure to boot from the VxVM boot disk on HP-UX 11i version 2, and no bootable root mirror is available, it may be necessary to boot from an alternate boot source, or from recovery media such as the following:

• HP-UX 11i version 2 installation disc.
• Bootable recovery tape.
• Secondary boot disk in the configuration.
• HP-UX Ignite-UX server that is accessible over a LAN.

There are several problems that can only be repaired if the system is booted from recovery media. These problems include:

• The HP-UX kernel is corrupted or non-bootable.
• Files required for booting are missing, such as:
• /stand/ioconfig file.
• Device files in /dev/vx.
• Corrupted LIF area on the boot disk.

Detailed information on how to recover from these and many other failures is documented in the "Expert Recovery Using the Core Media" section of the Ignite-UX Administration Guide, which is available on the HP documentation web site.

If these methods fail, use the procedure described in Recovery by Reinstallation.