Hi, I'm trying to setup a system with all filesystem, including boot and root, on software raid. I'm installing Debian testing and am using http://www.1u-raid5.net/HowTo/raid_debian.txt as a guide. I've setup boot and swap as raid1 and root, home, and var as raid5. My hope is to be able to use stock debian kernels (currently 2.4.18-686) and simply build my own initrd as necessary. The hope is that I can let apt happily upgrade my kernel as necessary and at worst use mkinitrd to build a custom initrd image, in fact I shouldn't even have to worry about this since if I get mkinitrd properly configured an appropriate image should be built whenever a new kernel is installed. At any rate, I'm running in to trouble. My problem seems to be that autostart is not working. I have persistent-superblock set to 1, but I've found that if I move raidtab out of /etc and reboot, then the raid is not autostarted. Shouldn't persistent-superblock take care of that? Or am I misunderstanding? Here's some info, let me know if you need anything more: temp:~# cat ~/raidtab # # Boot /boot RAID1 # raiddev /dev/md0 raid-level 1 nr-raid-disks 3 nr-spare-disks 0 persistent-superblock 1 chunk-size 4 device /dev/sda1 raid-disk 0 device /dev/sdb1 raid-disk 1 device /dev/sdc1 failed-disk 2 # # Swap RAID1 # raiddev /dev/md1 raid-level 1 nr-raid-disks 3 nr-spare-disks 0 persistent-superblock 1 chunk-size 4 device /dev/sda2 raid-disk 0 device /dev/sdb2 raid-disk 1 device /dev/sdc2 failed-disk 2 # # Root / RAID5 # raiddev /dev/md2 raid-level 5 nr-raid-disks 3 nr-spare-disks 0 persistent-superblock 1 chunk-size 32 device /dev/sda3 raid-disk 0 device /dev/sdb3 raid-disk 1 device /dev/sdc3 failed-disk 2 # # Home /home RAID5 # raiddev /dev/md3 raid-level 5 nr-raid-disks 3 nr-spare-disks 0 persistent-superblock 1 chunk-size 32 device /dev/sda5 raid-disk 0 device /dev/sdb5 raid-disk 1 device /dev/sdc5 failed-disk 2 # # Var /var RAID5 raiddev /dev/md4 raid-level 5 nr-raid-disks 3 nr-spare-disks 0 persistent-superblock 1 chunk-size 32 device /dev/sda6 raid-disk 0 device /dev/sdb6 raid-disk 1 device /dev/sdc6 failed-disk 2 temp:~# fdisk -ul /dev/sda Disk /dev/sda: 255 heads, 63 sectors, 2233 cylinders Units = sectors of 1 * 512 bytes Device Boot Start End Blocks Id System /dev/sda1 63 32129 16033+ fd Linux raid autodetect /dev/sda2 32130 2024189 996030 82 Linux swap /dev/sda3 2024190 10024559 4000185 fd Linux raid autodetect /dev/sda4 10024560 35873144 12924292+ 5 Extended /dev/sda5 10024623 26025299 8000338+ fd Linux raid autodetect /dev/sda6 26025363 35873144 4923891 fd Linux raid autodetect temp:~# fdisk -ul /dev/sdb Disk /dev/sdb: 255 heads, 63 sectors, 2233 cylinders Units = sectors of 1 * 512 bytes Device Boot Start End Blocks Id System /dev/sdb1 63 32129 16033+ fd Linux raid autodetect /dev/sdb2 32130 2024189 996030 82 Linux swap /dev/sdb3 2024190 10024559 4000185 fd Linux raid autodetect /dev/sdb4 10024560 35873144 12924292+ 5 Extended /dev/sdb5 10024623 26025299 8000338+ fd Linux raid autodetect /dev/sdb6 26025363 35873144 4923891 fd Linux raid autodetect My initrd.img includes the raid modules and raid1 and raid5 do indeed start during the initrd stage. All help is appreciated, Ken Causey - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
