This one was a more complex installation than the previous 10..0 to 10.3 upgrade., partially because there were :
- There were three 80GB drives installed with a wide variety of mount points;
- The original root partition was on /dev/hda16, which is inaccessible using the libata driver;
- Two of the drives were PATA, the third is a SATA device.
None of these were a real cause of problems, although having forgotten the root partition would be inaccessible did initially cause some extra work. If you're interested in what was needed for a successful upgrade, read on.