For some reason I'm not seeing some replies on gmane, so here is a separate
email to my original.
The partitions shown in dolphin are not in fstab, so there is no user option
for mounting.
I can't mount the partitions using mount from the command line:
mount: only root can do that
They are also clearly marked as not removable:
xx:~:$ cat /sys/block/sdb/removable
0
Jeremy