Hi, all. Just built kernel 3.6.11 and when I tried to install it with lilo, I got this difficult error message:
Fatal: Trying to map files from unnamed device 0x0000 (NFS/RAID mirror down ?) . So I eventually had a look at dmesg for my raid setup, and found this - note lines 15 - 19: [ 2.148410] md: Waiting for all devices to be available before autodetect [ 2.149891] md: If you don't use raid, use raid=noautodetect [ 2.151546] md: Autodetecting RAID arrays. [ 2.180356] md: Scanned 4 and added 4 devices. [ 2.181819] md: autorun ... [ 2.183244] md: considering sdb6 ... [ 2.184666] md: adding sdb6 ... [ 2.186079] md: sdb3 has different UUID to sdb6 [ 2.187492] md: adding sda6 ... [ 2.188884] md: sda3 has different UUID to sdb6 [ 2.190484] md: created md6 [ 2.191883] md: bind<sda6> [ 2.193224] md: bind<sdb6> [ 2.194538] md: running: <sdb6><sda6> 15 [ 2.195855] md: kicking non-fresh sda6 from array! 16 [ 2.197154] md: unbind<sda6> 17 [ 2.205840] md: export_rdev(sda6) [ 2.207176] bio: create slab <bio-1> at 1 19 [ 2.208520] md/raid1:md6: active with 1 out of 2 mirrors [ 2.209835] md6: detected capacity change from 0 to 34359672832 [ 2.211187] md: considering sdb3 ... [ 2.212444] md: adding sdb3 ... [ 2.213691] md: adding sda3 ... [ 2.215117] md: created md3 [ 2.216349] md: bind<sda3> [ 2.217569] md: bind<sdb3> [ 2.218765] md: running: <sdb3><sda3> [ 2.220025] md/raid1:md3: active with 2 out of 2 mirrors [ 2.221231] md3: detected capacity change from 0 to 429507543040 [ 2.222508] md: ... autorun DONE. [ 2.230821] md6: unknown partition table . Further perusal of a log file showed this error first happened on 2012-11-29. It would appear /dev/md6 has been firing on one cylinder ever since, and I've been unaware of this. :-( What does it mean for sda6 to be "non-fresh"? /dev/md6 is my root partition (including /usr :-(), so I can't unmount it for investigation. Could somebody please suggest how I might go about repairing this problem. Thanks! -- Alan Mackenzie (Nuremberg, Germany).