Dieter Stüken wrote:
Jason Keltz wrote:
I have what is probably a very simple question concerning lvm2. If I
create an lvm2 volume, and reboot, I no longer see the volume. The
system startup scripts do "vgchange -a y", but if I do this by hand, I get:
No volume groups found
I observed this for my SuSE system, too. I found, LVM was compiled as
a module, but it was not loaded when system startup initialized lvm :-(
I managed to push loading of LVM into initrd. Thus it gets loaded
very early and even may mount root from LVM. Either start mkinitrd
manually with the informations to load LVM, or declare the LVM module
within some config file to get it into initrd.
For SuSE it's in: /etc/sysconfig/kernel.
Hi.
Thanks for your quick response. I don't think in my case the problem is
that the module isn't loaded .... Here are the lines in rc.sysinit:
if [ -x /sbin/lvm.static ]; then
if /sbin/lvm.static vgscan --mknodes --ignorelockingfailure >
/dev/null
2>&1 ; then
action $"Setting up Logical Volume Management:"
/sbin/lvm.static vgchange -a y --ignorelockingfailure
fi
fi
Before the vgscan is run, here are the loaded modules:
Module Size Used by
dm_mirror 28577 0
dm_mod 59717 1 dm_mirror
joydev 13953 0
button 10449 0
battery 12741 0
ac 8773 0
uhci_hcd 32729 0
ehci_hcd 31813 0
3w_9xxx 35909 0
e1000 99757 0
floppy 57937 0
ext3 118729 1
jbd 60761 1 ext3
ata_piix 13381 1
libata 57885 1 ata_piix
sd_mod 20417 2
scsi_mod 116941 3 3w_9xxx,libata,sd_mod
... so "dm_mod" is actually loaded, and as far as I know, that's the
lvm2 module. The output of those commands is then:
File descriptor 21 left open
No volume groups found
No volume groups found
Reading all physical volumes. This may take a while...
... and it doesn't seem to find any physical volumes, but if I use the
same command after bootup:
# /sbin/lvm.static vgscan --mknodes --ignorelockingfailure
Reading all physical volumes. This may take a while...
Found volume group "scratch" using metadata type lvm2
??
Jason.
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