Hello all,
Is there any other solution available to preserve some of the existing LVM partitions?
I am also facing exactly the same issue that Steve has mentioned.
Thanks,
Ajay
On 1/5/07, Steve Robson <srobson@xxxxxxxxxxx> wrote:
Hi all,
I'm trying to install the OS onto a system, reusing the existing LVM
partitions thereon.
I'm using some LVM commands in a %pre section of the config file to
scan for and create the device nodes and they appear to be executed as
indicated by their logs. However, the device node files don't get
created, hence anaconda complains that it can't locate the partitions I
requested in the "--onpart" directive and stops.
Using the console at alt-f2, if I execute verbatim the exact same
commands, the device nodes are created. The logs of running the
commands manually are identical to those when run from %pre. Can anyone
offer any help or advice? Thanks in advance.
-Steve
Herewith, some supporting evidence:
Error on the console:
Unable to locate partition mapper/vg00-lroot to use for /.
Press 'OK' to reboot your system
Relevant sections from my kickstart config file:
# reusing existing partitions
part / --> part /boot --> part /opt --> part /var --> part /export/home -- --noformat
part swap -->
%pre --interpreter /bin/sh
# Import LVM data to preserve existing partitions
/usr/sbin/lvm vgscan --mknodes --ignorelockingfailure --verbose \
> /tmp/vgscan.log 2>&1
/usr/sbin/lvm vgchange -a y --ignorelockingfailure --verbose \
> /tmp/vgchange.log 2>&1
Contents of above named log files:
vgscan.log:
Creating directory "/var/lock/lvm"
Wiping cache of LVM-capable devices
Wiping internal VG cache
Finding all volume groups
Finding volume group "vg00"
Creating directory "/etc/lvm/archive"
Archiving volume group "vg00" metadata (seqno 6).
Creating directory "/etc/lvm/backup"
Creating volume group backup "/etc/lvm/backup/vg00" (seqno 6).
Finding all logical volumes
Reading all physical volumes. This may take a while...
Found volume group "vg00" using metadata type lvm2
vgchange.log
Finding all volume groups
Finding volume group "vg00"
Found volume group "vg00"
Creating vg00-lroot
Loading vg00-lroot table
Resuming vg00-lroot (253:0)
Found volume group "vg00"
Creating vg00-lopt
Loading vg00-lopt table
Resuming vg00-lopt (253:1)
Found volume group "vg00"
Creating vg00-lvar
Loading vg00-lvar table
Resuming vg00-lvar (253:2)
Found volume group "vg00"
Creating vg00-lswap
Loading vg00-lswap table
Resuming vg00-lswap (253:3)
Found volume group "vg00"
Creating vg00-lhome
Loading vg00-lhome table
Resuming vg00-lhome (253:4)
Activated logical volumes in volume group "vg00"
5 logical volume(s) in volume group "vg00" now active
Inspecting /dev/mapper reveals only a character file called "control".
$ ls -l /dev/mapper
crw------- 1 root 0 10, 63 Jan 3 11:45 control
$ ls -l /dev/vg00
ls: /dev/vg00: No such file or directory
After running the commands manually:
$ ls -l /dev/mapper
crw------- 1 root 0 10, 63 Jan 3 11:45 control
brw-rw---- 1 root 6 253, 2 Jan 3 12:09 vg00-lvar
brw-rw---- 1 root 6 253, 3 Jan 3 12:09 vg00-lswap
brw-rw---- 1 root 6 253, 0 Jan 3 12:09 vg00-lroot
brw-rw---- 1 root 6 253, 1 Jan 3 12:09 vg00-lopt
brw-rw---- 1 root 6 253, 4 Jan 3 12:09 vg00-lhome
$ ls -l /dev/vg00
lrwxrwxrwx 1 root 0 22 Jan 3 12:09 lhome -> /dev/mapper/vg00-lhome
lrwxrwxrwx 1 root 0 21 Jan 3 12:09 lopt -> /dev/mapper/vg00-lopt
lrwxrwxrwx 1 root 0 22 Jan 3 12:09 lroot -> /dev/mapper/vg00-lroot
lrwxrwxrwx 1 root 0 22 Jan 3 12:09 lswap -> /dev/mapper/vg00-lswap
lrwxrwxrwx 1 root 0 21 Jan 3 12:09 lvar -> /dev/mapper/vg00-lvar
I added a "df" and an "lsmod" at the beginning of the %pre section to
see whether the filesystems aren't mounted when the commands try to run,
but they are. Which of course they must be otherwise the commands
wouldn't be found. Anyway. here are the df and lsmod results for good
measure.
Filesystem Size Used Avail Use% Mounted on
rootfs 6.0M 4.0M 1.8M 70% /
/dev/root.old 6.0M 4.0M 1.8M 70% /
bnkick:/images/2007/RHEL4.0_WS_x86
121G 87G 28G 76% /mnt/source
/tmp/loop0 174M 174M 0 100% /mnt/runtime
Module Size Used by Not tainted
cramfs 42421 1 - Live 0xf886f000
dm_mirror 30637 0 - Live 0xf8939000
dm_mod 59605 3 dm_snapshot,dm_mirror,dm_zero, Live 0xf8a0e000
dm_snapshot 17285 0 - Live 0xf89cd000
dm_zero 2369 0 - Live 0xf88b5000
ds 17349 44 - Live 0xf8918000
e100 33733 0 - Live 0xf899c000
edd 9505 0 - Live 0xf886b000
ext3 116809 0 - Live 0xf8a90000
fat 44001 2 msdos,vfat, Live 0xf8896000
floppy 58481 0 - Live 0xf88fb000
hermes 7617 2 orinoco_pci,orinoco, Live 0xf8835000
jbd 71513 1 ext3, Live 0xf89fb000
lockd 64105 1 nfs, Live 0xf88b7000
loop 15817 2 - Live 0xf8888000
mii 5185 1 e100, Live 0xf88a4000
msdos 10177 0 - Live 0xf8932000
nfs 232905 1 - Live 0xf8943000
nfs_acl 3777 1 nfs, Live 0xf883d000
orinoco 45261 1 orinoco_pci, Live 0xf89a6000
orinoco_pci 7245 0 - Live 0xf892f000
parport 37129 1 parport_pc, Live 0xf8a1e000
parport_pc 24577 0 - Live 0xf8a29000
pcmcia_core 63481 2 ds,yenta_socket, Live 0xf891e000
raid0 7617 0 - Live 0xf8936000
raid1 20033 0 - Live 0xf89b3000
raid5 25281 0 - Live 0xf89be000
raid6 101713 0 - Live 0xf89e1000
scsi_mod 122573 2 sr_mod,sd_mod, Live 0xf897d000
sd_mod 17217 0 - Live 0xf88a9000
sr_mod 17381 0 - Live 0xf88af000
sunrpc 162597 5 nfs,nfs_acl,lockd, Live 0xf88d2000
uhci_hcd 31065 0 - Live 0xf88c8000
vfat 14529 0 - Live 0xf888e000
vga16fb 12201 1 - Live 0xf8829000
vgastate 8257 1 vga16fb, Live 0xf882d000
xor 13641 2 raid6,raid5, Live 0xf89b9000
yenta_socket 18881 0 - Live 0xf890b000
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