HP-UX 11i Installation and Update Guide, March 2003

Preparing To Move To HP-UX 11i
Preparing your system for HP-UX 11i
Chapter 4 79
— Disk space requirements. See “Disk Space and Memory
Requirements” on page 62
— Firmware revisions. See “Firmware Requirements” on page 49
❏ Back up your system. See “Back up Your System!” on page 79.
❏ If you are planning to cold-install your system, using Ignite-UX, see
“Preparing to Cold-Install Your System” on page 81
❏ If you are planning to update your system using update-ux, see
“Preparing to Update Your Existing System” on page 82.
Back up Your System!
In addition to your normal, periodic system backup procedures, you
should create a backup tape or a network backup of your root volume
group (see “Preparing your system for HP-UX 11i” on page 78). Do this
first before performing a cold-install or update, and again after the
cold-install or update. If a problem occurs, it’s a very simple procedure to
restore the system to its original state.
This section offers three alternatives for performing system backups:
fbackup, make_tape_recovery, and make_net_recovery.
Using fbackup Many administrators use the basic fbackup command to back up the
entire system to tape. You do not need to unmount any imported file
systems; fbackup does not cross NFS boundaries unless specified.
Using the normal tape location to do a full backup, insert a new tape and
enter:
fbackup -f/dev/rmt/0m -i -v
Later, if you wish to return the system to its previous state, use the
frecover command. See the fbackup (1M) manpage for examples.
Ignite-UX recovery
commands
For recovering a system, a better alternative to using fbackup and
frecover is to use the recovery commands available with Ignite-UX,
which offer more flexibility than fbackup and frecover, including the
ability to recover non-bootable systems.
The Ignite-UX server software for HP-UX 11i is provided on the HP-UX
11i OE CD1 or DVD1, and can be either cold-installed along with HP-UX
11i to create a new server or specified in the update-ux command to
update an existing Ignite-UX server to HP-UX 11i. See Chapter 2 for
details.