Disk 2 is a Corsair Flash Voyager, 1 GB.
Disk 1 is a FAT32-formatted HDD.
The file system (unslung) and the swap space are on Disk 2.
The slug is about 2-3 years old, rarely used. The inital flashing caused some problems (simple programms died, e.g. fdisk), so I flashed it again and everything seemed to be ok.