Thanks for the reply Neil, > > Hi All, > > > > I've struck an issue attempting to run lilo when booting to > a raid 1 > > system using a stock Debain 2.6.4-1-686 unstable release > kernel image. > > > > After sucecssfully booting into the raid filesystem, > attempts to run > > lilo give me the error... > > > > Fatal: Trying to map files from unnamed device 0x0000 > (NFS/RAID mirror > > down ?) > > > > You probably need a "raid-extra-boot=" option in lilo.conf > Just list the partition(s) that are currently active and it > might work. I've been able to apply the "raid-extra-boot=" option on an alternate system and did a bit of toying around with the syntax to see what was required and possible. All was well on the test machine, running the same 2.6.4-1 kernel, however the problems persist.... With raid-extra-boot=/dev/hdc,hda (hda being marked as failed)... Fatal: Unable to open dev/hda With raid-extra-boot=/dev/hdc ... Fatal: Trying to map files from unnamed device 0x0000 (NFS/RAID mirror down ?) And with raid-extra-boot=auto... Warning: Boot sector on /dev/md0 will depend upon the BIOS device code passed in the DL register being accurate. Install Master Boot Records with the 'lilo -M' command, and activate the RAID1 partitions with the 'lilo -A' command. Fatal: Trying to map files from unnamed device 0x0000 (NFS/RAID mirror down ?) ...==>... # lilo -M /dev/hda /boot/boot.0300 exists - no /dev/hda backup copy made. *** oops, well at least I have a boot disk.... The Master Boot Record of /dev/hda has been updated. # lilo -M /dev/hdc Backup copy of /dev/hdc in /boot/boot.1600 The Master Boot Record of /dev/hdc has been updated. # lilo -A /dev/hdc /dev/hdc2 # lilo -A /dev/hda /dev/hda2 # lilo Warning: Boot sector on /dev/md0 will depend upon the BIOS device code passed in the DL register being accurate. Install Master Boot Records with the 'lilo -M' command, and activate the RAID1 partitions with the 'lilo -A' command. Fatal: Trying to map files from unnamed device 0x0000 (NFS/RAID mirror down ?) Perhaps it may be due stale bios HDD detection as... lilo -T geom bios=0x00, cylinders=80, heads=2, sectors=18 ( 1.44Mb 2,880 sectors) C:H:S supported (IBM PC bios) BIOS reports 2 hard drives bios=0x80, cylinders=1022, heads=255, sectors=63 vol-ID: 95759575 ( 8.40Gb 16,418,430 sectors) LBA32 supported (EDD bios) bios=0x81, cylinders=1022, heads=255, sectors=63 vol-ID: 3A19FFA5 ( 8.40Gb 16,418,430 sectors) LBA32 supported (EDD bios) And I know the Hard drives are not the same size and neither are 8.40 Gb Cheers, Lewis - 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