I just downloaded ubuntu-10.04-rc-server-amd64.iso and used it on a simple desktop machine where I added a second disk, both on SATA. First disk is around 500GB, second only 160GB.
Running the installer, manually partitioning, I made a partition of around 160GB on both disks, and left the other part of the 500GB one unused. Both 160GB partitions weren't exactly as big which left a small piece 'unused' as reported by the installer.
Further on I installed leaving most options default. One MD raid device on both 160GB partitions, formatting md0 as ext4 and putting / on it.
I just downloaded ubuntu- 10.04-rc- server- amd64.iso and used it on a simple desktop machine where I added a second disk, both on SATA. First disk is around 500GB, second only 160GB.
Running the installer, manually partitioning, I made a partition of around 160GB on both disks, and left the other part of the 500GB one unused. Both 160GB partitions weren't exactly as big which left a small piece 'unused' as reported by the installer.
Further on I installed leaving most options default. One MD raid device on both 160GB partitions, formatting md0 as ext4 and putting / on it.
Reboot, no problem.