So I went to update the server to SLES 11 SP4 from SLES 11 SP2. On other servers, when I have started the upgrade process, it normally will show the root partition that it wants to install to. This time, it said it couldn't find a root partition. When I look in Expert Partitioner in YAST, the root partition shows up under 'system' which is under 'Volume Management'. Is this an LVM setup?

Do I have to tell the installation program to show all partitions then somehow try to find this under the volume management? I have never dealt with LVM volumes before.