Migrating AIX 5.1 => 5.2
Found that the
prngd subsystem on AIX 5.1 is
incompatible with the AIX 5.2 upgrade.
BEFORE migration this subsystem should be disabled
/etc/rc.local or erased completely:
rmssys -s prngd
It has to be remade after migration (see customization).
prngd is not disabled, the
after 5.2 installation
0C9 and the machine never recovers.
In this case:
- Boot into maintenance mode (needs first 5.2 CD and SMS console)
- Limited function shell (or
vi /etc/rc.local to disable
It is wise to update the firmware/microcode of your system
before upgrading the system.
IBM support site
installing from scratch.
When asked, select "Migration" instead of "Overwrite" installation.
Last update: 26-Jul-2006, M.Kraemer