This is something
that I experience on all new Power/AIX systems that I install: System migrated to AIX
5.3 (or later) might experience double boot When booting AIX Version 5.3 (or
later) on a system that has previously been running an earlier release of AIX, you
may notice that the system automatically reboots and restarts the boot process.
This is how the firmware processes changed information in the boot image. This
reboot also occurs if the process is reversed. A system previously running AIX
5.3 (or later) that is booting a... [More]