[linux-lvm] vgcreate -- no valid physical volumes in command line

[Daniel Gardner <daniel@danielgardner.org>]

Hi,

I'm new to this whole LVM lark, and something isn't working right for me...

I've got a partition, /dev/hda2, which I'm trying to put LVM stuff on.

cfdisk says:

            First    Last
 # Type     Sector   Sector   Offset  Length   Filesystem Type (ID)
-- ------- -------- --------- ------ --------- ---------------------- 
 2 Primary  6249285 12466439       0  6217155  Linux LVM (8E)

Then I do:

root@gentoo daniel # pvcreate /dev/hda2
pvcreate -- physical volume "/dev/hda2" successfully created

root@gentoo daniel # pvdisplay /dev/hda2
pvdisplay -- "/dev/hda2" is a new physical volume of 2.96 GB

root@gentoo daniel # pvscan
pvscan -- reading all physical volumes (this may take a while...)
pvscan -- inactive PV "/dev/ide/host0/bus0/target0/lun0/part2" is in no VG 
[2.96 GB]
pvscan -- total: 1 [2.96 GB] / in use: 0 [0] / in no VG: 1 [2.96 GB]

All looking good... now here's the weird one:

root@gentoo daniel # vgcreate main /dev/hda2
vgcreate -- no valid physical volumes in command line

This is where I'm getting my baby steps from
http://www-106.ibm.com/developerworks/linux/library/l-lvm2.html?dwzone=linux

I was using stock kernel 2.4.18 and tools 1.0.5 to start with, but just tried 
1.1-rc2 with the same results on both.

I don't really know where to go further with this, don't know if it's just me 
being stupid or what. Anyone got any ideas? I'll provide any info that I need 
to - just let me know what's needed!

Thanks awfully,
Daniel