HP-UX Virtual Partitions Administrator's Guide (includes A.05.02)

Crash Processing and Recovery
Network and Tape Recovery
Chapter 10
325
Using make_tape_recovery and Dual-media Boot
A dual-media boot allows you to boot the target partition using another disk and then recover using the tape
device. Currently with Ignite-UX, you cannot boot over the network and then recover from tape; you must
boot from a disk device.
Setting Up a Disk for Dual-Media Recovery
IMPORTANT Dual-media recovery is only supported if you boot the install kernel from the same version of
Ignite-UX that was used to create the recovery tape. HP does not support using mismatched
versions of Ignite-UX.
Before attempting a dual-media recovery, you must set up a disk that contains the Ignite-UX install kernels.
You can do this in one of the following ways:
• If the virtual partition to be recovered is up, run bootsys from your Ignite-UX server. Do not reboot the
partition immediately. Confirm that the boot path and the kernel to be loaded (/stand/WINSTALL for
PA-RISC servers and /stand/IINSTALL for Integrity servers) have been set correctly, as the bootsys
command has limited support for vPars. If they are not correct, use vparmodify to correct them. You can
also shut the system down and boot the vPar using the Ignite-UX install kernel explicitly, for example:
winona1# vparboot -p winona2 -B io_hw_path -b /stand/WINSTALL
• Alternatively you can manually place the install kernel and file system from Ignite-UX in /stand
(WINSTALL and WINSTALLFS for PA-RISC servers and IINSTALL and IINSTALLFS for Integrity servers,
then use vparboot to boot from the install kernel.
• If the system has a Fibre Channel interface that supports boot, and you have an unused Fibre Channel
LUN available, you can create a minimal CD/DVD boot image using the procedure in the How do I create
the CD equivalent of a tape created by make_boot_tape ? section of the Ignite-UX Custom Configuration
Files manual available at:
http://www.docs.hp.com/en/IUX/infolib.html
Once you have created the image you can dd it onto the Fibre Channel LUN and then boot from the FC
LUN using the following command from another vPar:
winona1# vparboot -p winona2 -B io_hw_path -b :WINSTALL
• If the virtual partition contains a DVD or CD drive, you can create a minimal CD/DVD boot image as
described in the Ignite-UX Custom Configuration Files, burn it to a CD or DVD, and boot from that.
Alternatively, you can boot the virtual partition from your OE media (assuming it has the same version of
Ignite-UX on it as the tape was created with).
Recovering the Virtual Partition
NOTE The target virtual partition (the partition that is being recovered) must own a tape device.
1. If needed, make sure the target virtual partition is in the down state. For example, if it is up, shutdown
the virtual partition:
winona2# shutdown -hy 0
2. Boot the virtual partition. The exact vparboot command line depends on how you set up the install
kernels. For example, if you used bootsys, use this command: