I plan to put 4 9Gb disks into a RAID array. I want more than one file system on this array so I decided to partition each disk and create multiple software raid arrays. Each raid array would have exactly one device entry for each physical disk (I included a copy of my raidtab file if that expanation is not quite clear). During bootup, I get the following error: My raidtab file looks as follows: raiddev /dev/md0 raid-level 5 nr-raid-disks 4 nr-spare-disks 0 persistent-superblock 1 parity-algorithm left-symmetric chunk-size 32 device /dev/sda1 raid-disk 0 device /dev/sdb1 raid-disk 1 device /dev/sdc1 raid-disk 2 device /dev/sdd1 raid-disk 3 raiddev /dev/md1 raid-level 5 nr-raid-disks 4 nr-spare-disks 0 persistent-superblock 1 parity-algorithm left-symmetric chunk-size 32 device /dev/sda2 raid-disk 0 device /dev/sdb2 raid-disk 1 device /dev/sdc2 raid-disk 2 device /dev/sdd2 raid-disk 3 -- Anthony Di Paola Systems Administrator Parametric Technology Corporation phone: (416) 593 4823 x 328 fax: (416) 593 4808