HP Serviceguard for Linux Version A.11.16 Release Notes, Third Edition, August 2006

Serviceguard for Linux Version A.11.16 Release Notes
Compatibility Information and Installation Requirements
Chapter 132
Steps for Rolling Upgrades
Preparation:
IMPORTANT Make sure there is a supported upgrade path from your current Linux
and Serviceguard versions to the new versions. See the Serviceguard
Compatibility and Feature Matrix at http://docs.hp.com/hpux/ha.
There is no upgrade path between some Linux OS releases; for example,
there is no upgrade path from Red Hat AS 2.1 to Red Hat EL3. In such
cases you will need to do a new OS installation (cold install).
Gather the following information before you start; you will need it during
the upgrade.
1. Host name and its entire network interface IP addresses. Record
each Mac-address of each interface and its network assignment
(Example: eth1: HWaddr 00:0B:CD:69:F4:68)
2. Record all network information, such as network mask, gateway
address, DNS server address, its broadcast address, etc. This
information can be useful if you are installing a new OS.
NOTE Make sure that all your network and storage interfaces are
supported by the new OS.
3. Record the storage configuration, such as all LVM information, and if
possible, collect a list of hardware disks configured, for example
sfdisk -l
On SUSE Linux Enterprise Server, you may need to run YAST or
YAST2.
4. Back up the following files on media that can be easily recovered by
the node after its upgrade or a new OS installation:
• Host files: /root/.rhosts, /etc/hosts, /etc/profile, and the
network information (including the bonding configurations):
—Red Hat: /etc/sysconfig/network-scripts/ifcfg*
—SUSE: /etc/sysconfig/network/ifcfg*