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jisis
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 Posted: Thu Oct 23, 2008 7:27 pm Post subject: LVM - forces beyond my control |
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My BLAG 90001 has been installed in the LVM format, which I believe is the default arrangment.
When the HD began to fill up, I decided to try and exploit the LVM concept and plug in a 2nd HD and roll it into the existing VolGroup. It seemed so easy, three commands and it was done, sdb became part of the VolGroup00 (VolGroup01 is a 2gb swap partn. on sda). I managed to transfer files to it
However, after a reboot, the system no longer starts and drops into the following:
| Code: | | Error of GRUB: Minimal BASH-like line editing is supported.... |
Tried googling (http://dailypackage.fedorabook.com/index.php?/archives/159-System-Recovery-Week-Using-LVM-In-Rescue-Mode.html) but am a bit clueless..
Couldn't see any home dir when using rescue mode from the cd..
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extraspecialbitter
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| Posted: Fri Oct 24, 2008 1:32 am Post subject: |
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What do you see when you type "fdisk -l" from the rescue CD? IIRC, the default LVM configuration includes a /boot partition, which seems to be what's amiss.
Now that I think of it, you may need to use LVM commands in order to see the logical volumes. If "fdisk -l" doesn't turn up anything, try "vgscan" followed by "vgchange -a y"
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jisis
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| Posted: Fri Oct 24, 2008 10:53 pm Post subject: |
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results shown are a bit...chopped
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fdisk -l
Device Boot Blocks System
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/dev/sda1 * 200781 Linux
/dev/sda2 79835017+ Linux LVM
/dev/sdb1 * 244188000 Linux
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/dev/dm-0 (328 GB) doesn't contain a valid partition table
/dev/dm-1 (2080 MB) doesn't contain a valid partition table
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I ran the LVM commands already. My results were the same as the site linked in the first post. I followed the site up to 'e2fsck' command:
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e2fsck 1.40.8 (13-Mar-2008)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking refernce counts
Pass 5: Checking group summary information
/dev/VolGroup00/LogVol00: 107651/20070400 files (2.2% non-contiguous), 19552229/80257024 block
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jebba
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| Posted: Fri Oct 24, 2008 11:04 pm Post subject: |
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| jisis wrote: | I ran the LVM commands already. My results were the same as the site linked in the first post. I followed the site up to 'e2fsck' command:
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e2fsck 1.40.8 (13-Mar-2008)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking refernce counts
Pass 5: Checking group summary information
/dev/VolGroup00/LogVol00: 107651/20070400 files (2.2% non-contiguous), 19552229/80257024 block
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I havent followed the other part of the thread but this shows that a filesystem check completed OK happily.
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jisis
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| Posted: Sat Oct 25, 2008 2:32 pm Post subject: |
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yep, check ran ok. I can mount the Logical Volume in Rescue Mode, and see my files.
However, not sure where to go next - look for grub.conf? It certainly was not in /etc or /boot.
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extraspecialbitter
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| Posted: Sat Oct 25, 2008 5:20 pm Post subject: |
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I'm going to guess that /dev/sda1 is your /boot partition. Are you able to mount it and examine its contents? Are either of the /dev/sda partitions intact?
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john maclean
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| Posted: Sun Oct 26, 2008 11:06 am Post subject: |
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I use lvm on this laptop. This file dictates what gets mounted at boot time.
| Code: | cat /etc/fstab
LABEL=/1 / ext3 defaults 1 1
LABEL=/home1 /home ext3 defaults 1 2
LABEL=/boot1 /boot ext3 defaults 1 2
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
LABEL=SWAP-sda2 swap swap defaults 0 0 |
and these are the mounted partitions;
| Code: | df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda3 7360640 2987044 3993660 43% /
/dev/sda5 60588984 4177380 53284152 8% /home
/dev/sda1 93307 17463 71027 20% /boot
tmpfs 513220 0 513220 0% /dev/shm |
I'm running 70k and my "grub" file is is in /boot/grub/menu.lst. So I'm thinking that you mount that system and look for /etc/fstab and possibly print it here.
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BLAG 'em up! |
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jisis
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| Posted: Sun Oct 26, 2008 12:51 pm Post subject: |
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| Code: |
catfstab
/dev/VolGroup00/LogVol00/ / ext3 defaults 1 1
UUID=............ /boot ext3 defaults 1 2
tmpfs /dev/shm tmpfs defaults 0 0
devpts /dev/pts devpts gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
proc /proc proc defaults 0 0
/dev/VolGroup00/LogVol001 swap swap defaults 0 0
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I've omitted the actual UID on the /boot line
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extraspecialbitter
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| Posted: Sun Oct 26, 2008 3:04 pm Post subject: |
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Assuming that you're running a live distro in a "rescue" mode, are you able to do any of the following?
| Code: | mount /dev/sda1 /mnt
cd /mnt
ls -l grub |
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jisis
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| Posted: Sun Oct 26, 2008 3:21 pm Post subject: |
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yep, already tried that
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mount /dev/sda1 /mnt/sda1/
mount: unknown filesystem type 'lvm2pv'
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jebba
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| Posted: Sun Oct 26, 2008 5:58 pm Post subject: |
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| john maclean wrote: | | I'm running 70k and my "grub" file is is in /boot/grub/menu.lst. |
FWIW grub is /boot/grub/grub.conf in BLAG, menu.lst is debian.
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jisis
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| Posted: Sun Oct 26, 2008 10:25 pm Post subject: |
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mounting LogVol00, there is nothing in /boot
grub.conf in /etc appears to be full of 'tilds' and nothing else.
can I try writing grub.conf?
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jebba
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| Posted: Sun Oct 26, 2008 10:40 pm Post subject: |
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| jisis wrote: | mounting LogVol00, there is nothing in /boot
grub.conf in /etc appears to be full of 'tilds' and nothing else.
can I try writing grub.conf? |
The grub in /etc is a symbolic link to the one in /boot/grub/grub.conf
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john maclean
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| Posted: Mon Oct 27, 2008 2:48 am Post subject: |
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| jisis wrote: | results shown are a bit...chopped
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fdisk -l
Device Boot Blocks System
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/dev/sda1 * 200781 Linux
/dev/sda2 79835017+ Linux LVM
/dev/sdb1 * 244188000 Linux
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Huh? That looks like you have two bootable partitions. One for the "live cd" (sda1) and one for the stuff that you have mounted, (the disk) . Can you mount /dev/sdb1?
jebba - grub, my bad!
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BLAG 'em up! |
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jisis
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| Posted: Mon Oct 27, 2008 12:30 pm Post subject: |
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yep, I used FDISK to toggle off the boot designation against sdb1, but it made no difference to the issue.
Yep, sry, I thought the grub symbolic link was vice versa.
Shall I just get all my files off and start from scratch?
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