From: Miha Verlic <miha@habulin.si>
To: linux-lvm@redhat.com
Subject: [linux-lvm] cant find PV after boot sector rewrite
Date: Sat, 02 Oct 2004 21:51:51 +0200 [thread overview]
Message-ID: <415F06D7.9090409@habulin.si> (raw)
Hello,
I have (or better yet - had) 3x200gb drives joint up together with LVM1.
PV were created directly on /dev/hde, /dev/hdf, /dev/hdg, without any
partitions made before. On top of the ~600gb VG I created ext3 partition
and everything worked for a few months, but now I had to move disks to a
new server. I exported drives with with "vgchange -an mix" and "vgexport
mix" successfully, however LILO on new machine was complaining about
duplicated volume IDs (although it still booted).
"lilo -T vol-ID" showed 00000002 volume IDs on all three drives, so I ran:
"lilo -z -M /dev/hde"
"lilo -z -M /dev/hdf"
"lilo -z -M /dev/hdg"
and a few second later, it occured to me, this *might* change
bootsectors of all drives. Of course pvscan did not find any physical
volumes anymore.
Lilo does create backup files every time you run it, however since I ran
it 3 times, I only have backup of boot sector for one drive - hdg. I
have successfully "imported" boot sector of /dev/hdg back with "dd
if=/boot/boot.2140 of=/dev/hdg", however boot sectors from /dev/hde and
/dev/hdf remains lost. After restoring boot sector, pvscan now finds 1
inactive PV /dev/hdg in exported VG "mix".
Is there any way to get back/recreate the whole PV without loosing any
data? All I'm actually missing is 2x512bytes in boot sectors :(
Oh yeah some useful (or not) info: PV is not root partition, lvm 1.0.8,
linux is 2.4.27, glibc 2.3.2, system is slightly modified slackware 10.
--
Miha
reply other threads:[~2004-10-02 19:53 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=415F06D7.9090409@habulin.si \
--to=miha@habulin.si \
--cc=linux-lvm@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox