On Tue, 12 Apr 2005 at 1:34am, Gerald Waugh wrote > On Tue, 2005-04-12 at 06:19 +0200, dan1 wrote: > > Hello, Gerald. > > > > This is my personnal step by step documentation about how to install > > software RAID with CentOS 3 or 4. > Dan, > > Thanks for the info... Disk Druid was always a pain to me. > I did get all the partitions into RAID1, except for /boot > seems like when /boot is a raid array, the installer never ask where you > want to put the mbr. Thus when you reboot, it can't boot up. A couple of quick notes: 1) Setting up software RAIDs is really easy if you kickstart. This is the partitioning section from one of my ks.cfg files that sets up a fully mirrored system on a box with 2 IDE drives (hda and hdc): clearpart --all part raid.01 --size=6144 --ondisk=hda --asprimary part raid.11 --size=6144 --ondisk=hdc --asprimary part raid.02 --size=4096 --ondisk=hda part raid.12 --size=4096 --ondisk=hdc part raid.03 --size=8192 --ondisk=hda part raid.13 --size=8192 --ondisk=hdc part raid.04 --size=1024 --ondisk=hda part raid.14 --size=1024 --ondisk=hdc part raid.05 --size=1024 --ondisk=hda part raid.15 --size=1024 --ondisk=hdc part raid.06 --size=1024 --grow --ondisk=hda part raid.16 --size=1024 --grow --ondisk=hdc raid / --level=1 --device=md0 raid.01 raid.11 raid /usr/local --level=1 --device=md1 raid.02 raid.12 raid /home --level=1 --device=md2 raid.03 raid.13 raid /tmp --level=1 --device=md3 raid.04 raid.14 raid swap --level=1 --device=md4 raid.05 raid.15 raid /var --level=1 --device=md5 raid.06 raid.16 2) If you use grub, by default a system missing the non-primary boot drive (i.e., if hda in the above system died) won't boot. There are tricks out there to get a boot sector on the secondary boot drive. *However*, if you use LILO, you can tell it that 'boot=/dev/md0' and it will automatically make both drives bootable. -- Joshua Baker-LePain Department of Biomedical Engineering Duke University