The rescue CD does not include the generic SCSI module "sg" (not does it include
the /dev/sg* devices). In some cases, this module is needed in rescue mode,
like when upgrading SCSI disk firmware. This can't be done when the (system)
disks are used, so it should be done from a floppy/CD booted system. The Seagate
firmware upgrade tools need the "sg" module, for example.
Mass-closing lots of old bugs which are in MODIFIED (and thus presumed to be
fixed). If any of these are still a problem, please reopen or file a new bug
against the release which they're occurring in so they can be properly tracked.