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Hi there, |
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|
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I'm feeling a bit stuffed with a machine upon which I recently ran |
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`emerge -e world`. I'm surprised to think this is the cause, however |
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the next time I booted grub failed to load, and I did not even get |
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the usual menu asking me which kernel I want to load - all I get is |
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"GRUB" in white letters at the very top left of a black screen. |
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|
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Ok, I thought, this should be as easy as booting from the LiveCD, |
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chrooting into the system and then running grub from in there. How |
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naive could I be? |
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|
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livecd ~ # uname -a |
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Linux livecd 2.6.15-gentoo-r5 #1 SMP Thu Feb 16 15:28:08 UTC 2006 |
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i686 Pentium II (Deschutes) GenuineIntel GNU/Linux |
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livecd ~ # parted /dev/ida/disc0/disc p |
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Disk geometry for /dev/ida/disc0/disc: 0kB - 18GB |
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Disk label type: msdos |
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Number Start End Size Type File system Flags |
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3 16kB 38MB 38MB primary fat16 |
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1 38MB 100MB 63MB primary ext3 boot |
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2 100MB 1174MB 1074MB primary linux-swap |
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4 1174MB 18GB 17GB primary reiserfs |
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Information: Don't forget to update /etc/fstab, if necessary. |
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|
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livecd ~ # mount -v /dev/ida/disc0/part4 /mnt/gentoo/ |
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mount: you didn't specify a filesystem type for /dev/ida/disc0/part4 |
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I will try type reiserfs |
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/dev/ida/disc0/part4 on /mnt/gentoo type reiserfs (rw) |
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livecd ~ # mount -v /dev/ida/disc0/part1 /mnt/gentoo/boot/ |
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mount: you didn't specify a filesystem type for /dev/ida/disc0/part1 |
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I will try type ext3 |
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/dev/ida/disc0/part1 on /mnt/gentoo/boot type ext3 (rw) |
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livecd ~ # mount -t proc proc /mnt/gentoo/proc |
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livecd ~ # cp -L /etc/resolv.conf /mnt/gentoo/etc/ |
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livecd ~ # chroot /mnt/gentoo /bin/bash |
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livecd / # env-update && source /etc/profile |
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>>> Regenerating /etc/ld.so.cache... |
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livecd / # |
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|
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So mounting the RAID array from the LiveCD is the easy part. After |
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this, nothing goes as planned: |
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|
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livecd / # grub |
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GNU GRUB version 0.96 (640K lower / 3072K upper memory) |
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|
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grub> find /boot/grub/stage1 |
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|
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Error 15: File not found |
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|
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grub> root (hd0,0) |
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Filesystem type is xfs, partition type 0x83 |
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|
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grub> quit |
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|
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Y'see, XFS isn't the filesystem of any of the partitions on the |
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array, but that of the filesystem on the separate EIDE drive. And |
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it's no good installing GRUB on this, I've tried before. :( |
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|
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livecd / # grep ida /etc/fstab |
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/dev/ida/c0d0p1 /boot ext2 |
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noauto,noatime 1 2 |
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/dev/ida/c0d0p2 none swap |
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sw 0 0 |
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/dev/ida/c0d0p4 / reiserfs |
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noatime 0 1 |
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|
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This is how the partitions are described in /etc/fstab, but... |
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|
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livecd / # grub-install /dev/ida/c0d0 |
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expr: non-numeric argument |
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Could not find device for /boot: Not found or not a block device. |
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livecd / # |
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|
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From the LiveCD (see first code sample) I was able to address the |
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drive as /dev/ida/disc0/disc, but not from inside the system - this |
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doesn't seem to be described in /dev: |
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|
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livecd / # grub-install /dev/ida/c0d0/disk |
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/dev/ida/c0d0/disk: Not found or not a block device. |
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livecd / # grub-install /dev/ida/disc0/disc |
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/dev/ida/disc0/disc: Not found or not a block device. |
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livecd / # ls /dev/ida/disc0/disc |
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ls: /dev/ida/disc0/disc: No such file or directory |
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livecd / # ls /dev/ida/disc0/ |
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ls: /dev/ida/disc0/: No such file or directory |
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livecd / # ls /dev/ida/ |
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c0d0 c0d14p9 c0d6 c1d10p9 c1d2 c1d8 |
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c2d12p9 c2d4 |
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c0d0p1 c0d15 c0d6p1 c1d11 c1d2p1 c1d8p1 |
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c2d13 c2d4p1 |
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c0d0p10 c0d15p1 c0d6p10 c1d11p1 c1d2p10 c1d8p10 |
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c2d13p1 c2d4p10 |
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c0d0p11 c0d15p10 c0d6p11 c1d11p10 c1d2p11 c1d8p11 |
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c2d13p10 c2d4p11 |
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c0d0p12 c0d15p11 c0d6p12 c1d11p11 c1d2p12 c1d8p12 |
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c2d13p11 c2d4p12 |
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c0d0p13 c0d15p12 c0d6p13 c1d11p12 c1d2p13 c1d8p13 |
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c2d13p12 c2d4p13 |
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c0d0p14 c0d15p13 c0d6p14 c1d11p13 c1d2p14 c1d8p14 |
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c2d13p13 c2d4p14 |
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c0d0p15 c0d15p14 c0d6p15 c1d11p14 c1d2p15 c1d8p15 |
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c2d13p14 c2d4p15 |
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c0d0p2 c0d15p15 c0d6p2 c1d11p15 c1d2p2 c1d8p2 |
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c2d13p15 c2d4p2 |
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c0d0p3 c0d15p2 c0d6p3 c1d11p2 c1d2p3 c1d8p3 |
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c2d13p2 c2d4p3 |
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... |
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... |
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c0d14p7 c0d5p8 c1d10p7 c1d1p8 c1d7p8 c2d12p7 |
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c2d3p8 c2d9p8 |
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c0d14p8 c0d5p9 c1d10p8 c1d1p9 c1d7p9 c2d12p8 |
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c2d3p9 c2d9p9 |
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livecd / # |
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|
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Since I don't have 14 disks on my system these entries are obviously |
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bogus. |
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|
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So any suggestions where to go from here, please? |
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|
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Installing GRUB *used* to work on this system, because I described it |
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in great detail when I wrote <http://gentoo-wiki.com/ |
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HARDWARE_Compaq_Proliant_6500>. The only think I can think is that |
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this system was originally installed 18 months or 2 years ago, and |
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that since then the devfs / udev transmogrification has taken place. |
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I seem to recall following instructions at the time (when my new |
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kernel required me to upgrade) but I can't say I really understood |
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all that business. Is it possible that this is why the cpqarray is |
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not described correctly in the mounted, chrooted /dev ? Is there any |
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way to copy the /dev off the LiveCD onto the mounted, chrooted |
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system, and will this make any difference to GRUB? |
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|
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I feel really frustrated by this, as I used to have quite a usable |
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system, |
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|
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Cheers, |
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|
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Stroller. |
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-- |
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