On Fri, 2008-01-18 at 15:01 -0500, Alain Reguera Delgado wrote: > Guys, > > The other day while working on my old workstation it get frozen and > after reboot I lost almost all data unexpectedly. > > I have a RAID1 configuration with LVM. 2 IDE HDDs. > > md0 .. store /boot (100MB) > -------------------------- > /dev/hda2 > /dev/hdd1 > > md1 .. store / (26GB) > /dev/hda3 > /dev/hdd2 > > The only info that still rest in was that, that I restore after the > fresh install. It seems that the disk were with problems and weren't > syncing :(. I confessed, I didn't check that at first time but after I > lost the data and check /var/log/messages I saw that. > > >From /var/log/messages > ... > Jan 17 12:22:15 zion kernel: md: raid1 personality registered for level 1 > Jan 17 12:22:15 zion kernel: device-mapper: ioctl: 4.11.0-ioctl > (2006-09-14) initialised: dm-devel at redhat.com > Jan 17 12:22:15 zion kernel: md: Autodetecting RAID arrays. > Jan 17 12:22:15 zion kernel: md: invalid raid superblock magic on hda3 > Jan 17 12:22:15 zion kernel: md: hda3 has invalid sb, not importing! > Jan 17 12:22:15 zion kernel: md: autorun ... > Jan 17 12:22:15 zion kernel: md: considering hdd2 ... > Jan 17 12:22:15 zion kernel: md: adding hdd2 ... > Jan 17 12:22:15 zion kernel: md: hdd1 has different UUID to hdd2 > Jan 17 12:22:15 zion kernel: md: hda2 has different UUID to hdd2 > Jan 17 12:22:15 zion kernel: md: created md1 > Jan 17 12:22:15 zion kernel: md: bind<hdd2> > Jan 17 12:22:15 zion kernel: md: running: <hdd2> > Jan 17 12:22:15 zion mcstransd: mcstransd starting > Jan 17 12:22:15 zion kernel: raid1: raid set md1 active with 1 out of 2 mirrors > Jan 17 12:22:15 zion kernel: md: considering hdd1 ... > Jan 17 12:22:15 zion kernel: md: adding hdd1 ... > Jan 17 12:22:15 zion kernel: md: adding hda2 ... > Jan 17 12:22:15 zion kernel: md: created md0 > Jan 17 12:22:15 zion kernel: md: bind<hda2> > Jan 17 12:22:15 zion kernel: md: bind<hdd1> > Jan 17 12:22:15 zion kernel: md: running: <hdd1><hda2> > Jan 17 12:22:15 zion kernel: md: kicking non-fresh hdd1 from array! > Jan 17 12:22:15 zion kernel: md: unbind<hdd1> > Jan 17 12:22:15 zion kernel: md: export_rdev(hdd1) > Jan 17 12:22:15 zion kernel: raid1: raid set md0 active with 1 out of 2 mirrors > Jan 17 12:22:15 zion kernel: md: ... autorun DONE. > ... > > This computer is really old, Celeron 800MHz, 256MB of RAM and IDE disk too. > > I know that I have to suffer the consequences but if you know some way > to recover some data, help me please. > > These days I have been reading about: mdamd, and some way to recover > but no success: > > I tried to boot from rescue mode with CentOS 5 first CD and do an fsck > to /dev/hda3 and /dev/hdd2. After this something about superblock was > told to me and that use the command e2fsck -b 8123 <device> (I don't > remember the number exactly) but no success either. > > Do you have some idea ? I've not used raid, but your file system is inside LVM, from what you say. You need to have LVM active and fsck on /dev/<your logical vol> for fsck to work. > > Thanks guys, > > Cheers, > al. > <snip sig stuff> HTH -- Bill