Hi Ingo, everyone! After deciding to make my now-/ my then-/boot and the two 50M partitions I have not used until now into then-/ as raid1, I successfully mkraid'es it with the following /etc/raidtab (snippet) Q> raiddev /dev/md0 Q> raid-level 1 Q> nr-raid-disks 2 Q> persistent-superblock 1 Q> chunk-size 32k Q> Q> device /dev/sda1 Q> raid-disk 0 Q> device /dev/sdc1 Q> raid-disk 1 (chunk-size is not necessary for raid 1, is it?) I then created an ext2 fs on it: Q> mke2fs -b 4096 -i4096 /dev/md0 I then tried to simulate a disk-failure as I have never done so and will not do so with the arrays that contain actual data. So before putting anything else on /dev/md0, I decided to Q> raidsetfaulty /dev/md0 /dev/sdc1 (ok, /proc/mdstat shows [U_]) Q> raidhotremove /dev/md0 /dev/sda1 (maybe ok, I didn't check the log yet; however, no error messages on the command line) Q> raidhotadd /dev(md0 /dev/sdc1 (no errors on the command line) (/proc/mdstst shows recovery started, but no progress, ETA increasig all the time) (/var/log/messages shows the attached messages, which seem to look ok -until it oopses with nothing more in the logs.) TIA Marc -- Marc Mutz <[EMAIL PROTECTED]> http://marc.mutz.com/Encryption-HOWTO/ University of Bielefeld, Dep. of Mathematics / Dep. of Physics PGP-keyID's: 0xd46ce9ab (RSA), 0x7ae55b9e (DSS/DH)
Jun 16 20:01:29 adam kernel: trying to hot-add sdc1 to md0 ... Jun 16 20:01:29 adam kernel: bind<sdc1,2> Jun 16 20:01:29 adam kernel: RAID1 conf printout: Jun 16 20:01:29 adam kernel: --- wd:1 rd:2 nd:1 Jun 16 20:01:29 adam kernel: disk 0, s:0, o:1, n:0 rd:0 us:1 dev:sda1 Jun 16 20:01:29 adam kernel: disk 1, s:0, o:0, n:1 rd:1 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 2, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 3, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 4, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 5, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 6, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 7, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 8, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 9, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 10, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 11, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: RAID1 conf printout: Jun 16 20:01:29 adam kernel: --- wd:1 rd:2 nd:2 Jun 16 20:01:29 adam kernel: disk 0, s:0, o:1, n:0 rd:0 us:1 dev:sda1 Jun 16 20:01:29 adam kernel: disk 1, s:0, o:0, n:1 rd:1 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 2, s:1, o:0, n:2 rd:2 us:1 dev:sdc1 Jun 16 20:01:29 adam kernel: disk 3, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 4, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 5, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 6, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 7, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 8, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 9, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 10, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 11, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: md: updating md0 RAID superblock on device Jun 16 20:01:29 adam kernel: sdc1 [events: 00000003](write) sdc1's sb offset: 52352 Jun 16 20:01:29 adam kernel: sda1 [events: 00000003](write) sda1's sb offset: 52352 Jun 16 20:01:29 adam kernel: . Jun 16 20:01:29 adam kernel: md: recovery thread got woken up ... Jun 16 20:01:29 adam kernel: md0: resyncing spare disk sdc1 to replace failed disk Jun 16 20:01:29 adam kernel: RAID1 conf printout: Jun 16 20:01:29 adam kernel: --- wd:1 rd:2 nd:2 Jun 16 20:01:29 adam kernel: disk 0, s:0, o:1, n:0 rd:0 us:1 dev:sda1 Jun 16 20:01:29 adam kernel: disk 1, s:0, o:0, n:1 rd:1 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 2, s:1, o:0, n:2 rd:2 us:1 dev:sdc1 Jun 16 20:01:29 adam kernel: disk 3, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 4, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 5, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 6, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 7, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 8, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 9, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 10, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 11, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: RAID1 conf printout: Jun 16 20:01:29 adam kernel: --- wd:1 rd:2 nd:2 Jun 16 20:01:29 adam kernel: disk 0, s:0, o:1, n:0 rd:0 us:1 dev:sda1 Jun 16 20:01:29 adam kernel: disk 1, s:0, o:0, n:1 rd:1 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 2, s:1, o:1, n:2 rd:2 us:1 dev:sdc1 Jun 16 20:01:29 adam kernel: disk 3, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 4, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 5, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 6, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 7, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 8, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 9, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 10, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: disk 11, s:0, o:0, n:0 rd:0 us:0 dev:[dev 00:00] Jun 16 20:01:29 adam kernel: md: syncing RAID array md0 Jun 16 20:01:29 adam kernel: md: minimum _guaranteed_ reconstruction speed: 100 KB/sec. Jun 16 20:01:29 adam kernel: md: using maximum available idle IO bandwith for reconstruction. Jun 16 20:01:29 adam kernel: md: using 128k window. Jun 16 20:01:29 adam kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000000 Jun 16 20:01:29 adam kernel: current->tss.cr3 = 00101000, %cr3 = 00101000 Jun 16 20:01:29 adam kernel: *pde = 00000000 Jun 16 20:01:29 adam kernel: Oops: 0000 Jun 16 20:01:29 adam kernel: CPU: 0
