LVM is "inactive" on first reboot after installation

[n43w79]

> I'm trying to set up LVM with FAI 3.4.7 on Debian 6. The various
> partitions are created, and things install fine, but on reboot all the
> volume groups except the the one that has the root file system ("/") are
> 'inactive'.
>
Please try:
-   disk_config cciss/c0d0 disklabel:msdos fstabkey:uuid
+   disk_config disk1 disklabel:msdos fstabkey:uuid
....
-   vg              vgsys   cciss/c0d0p2
+   vg              vgsys   disk1