Based on observations of the failure mode of anaconda for an in-place
upgrade to 6.4, I used a heuristic method and solved the problem.
I made a backup copy of /etc/fstab, and then edited fstab to remove all
references to any physical hard drive (e.g., sdb, sdc) that did not
contain the images that needed upgrading. For upgrade, anaconda
evidently depends upon the contents of fstab; this change made anaconda
ignore the disks with which it found issue. After the upgrade and
reboot, I then copied the saved fstab over the edited fstab, issued the
appropriate mount command, and everything seems to be working.
I presume that this will not work when we migrate to SL 7 and must only
have the target hard drive physically connected.
Yasha Karant
