I can't operate the vgoo

[rolex_2]

when i use vgdisplay or lvextend command, i encount the error like below:

vgdisplay: Couldn't query volume group "/dev/vg00".
Possible error in the Volume Group minor number; Please check and make sure the group minor number is unique.
vgdisplay: Cannot display volume group "/dev/vg00".

what should i do to resolve it?
btw:
the information about the vg00 is :

# cd /dev/vg00
# ls -l
total 0
crw-r----- 1 root sys 64 0x000000 Jun 6 2003 group
brw-r----- 1 root sys 64 0x000001 Jun 6 2003 lvol1
brw-r----- 1 root sys 64 0x000002 Jun 6 2003 lvol2
brw-r----- 1 root sys 64 0x000003 Jun 6 2003 lvol3
brw-r----- 1 root sys 64 0x000004 Jun 6 2003 lvol4
brw-r----- 1 root sys 64 0x000005 Jun 6 2003 lvol5
brw-r----- 1 root sys 64 0x000006 Jun 6 2003 lvol6
brw-r----- 1 root sys 64 0x000007 Jun 6 2003 lvol7
brw-r----- 1 root sys 64 0x000008 Jun 6 2003 lvol8
crw-r----- 1 root sys 64 0x000001 Jun 6 2003 rlvol1
crw-r----- 1 root sys 64 0x000002 Jun 6 2003 rlvol2
crw-r----- 1 root sys 64 0x000003 Jun 6 2003 rlvol3
crw-r----- 1 root sys 64 0x000004 Jun 6 2003 rlvol4
crw-r----- 1 root sys 64 0x000005 Jun 6 2003 rlvol5
crw-r----- 1 root sys 64 0x000006 Jun 6 2003 rlvol6
crw-r----- 1 root sys 64 0x000007 Jun 6 2003 rlvol7
crw-r----- 1 root sys 64 0x000008 Jun 6 2003 rlvol8
#

[Ian Dennison_1]

Can you list a 'll /dev/vg*/group'? It sounds like vg00 is not unique.

Cheers, Ian

[Caesar_3]

Hello!

Check in the /dev if you have another
device like the group you have in /dev/vg00
with the same major & minor numbers.

Caesar

[melvyn burnard]

you may also have a corrupt /etc/lvmtab
do strings on it and post the output

[Tim Adamson_1]

You have a group file with the same minor number.

cd /dev
find . -name group -exec ls -l {} \;

That will list all the group files. If you have another one that has the same minor number as vg00 (ie, 0x000000) then you have found the cause.

[Massimo Bianchi]

Hi,
check also if you have a
/dev/slvmpvg with minor 0x000000

On some system it exists and can cause problems...

Try moving it and re-issuing the problem.

HTH,
Massimo

[Sunil Sharma_1]

Hi,
yor error says that you have two group file with same major and minor number.
you can do ll group* so you can see major and minor number of all group file.
it should not be same for any two files.

Sunil

[rolex_2]

I have try this:

1.
# cd /etc
# strings lvmtab
/dev/vg00
/dev/dsk/c1t2d0
2.
# cd /dev
# find . -name group -exec ls -l {} \;
crw-r----- 1 root sys 64 0x000000 Jun 6 2003 ./vg00/group

3.
# cd /dev
# ll | grep 0x000000
crw-r--r-- 1 root sys 69 0x000000 Apr 23 13:50 config
crw--w--w- 1 root tty 0 0x000000 May 22 03:46 console
crw------- 1 bin bin 232 0x000000 Jun 6 2003 diag2
crw-rw-rw- 1 root sys 119 0x000000 Jun 6 2003 dlpi0
crw------- 1 bin bin 27 0x000000 Jun 6 2003 dmem
crw------- 1 root root 196 0x000000 May 21 22:41 eeprom
crw-r--r-- 1 root other 227 0x000000 Jun 6 2003 kepd
crw------- 1 bin bin 189 0x000000 Jun 6 2003 klog
crw------- 1 root root 245 0x000000 May 21 22:41 lan0
crw-r----- 1 bin sys 3 0x000000 Apr 23 13:50 mem
crw-r--r-- 1 bin bin 46 0x000000 Jun 6 2003 nettrace
crw-rw-rw- 2 bin tty 16 0x000000 Jun 6 2003 ptyp0
crw--w--w- 2 bin bin 0 0x000000 Jun 6 2003 syscon
crw--w--w- 2 bin bin 0 0x000000 Jun 6 2003 systty
crw-rw-rw- 1 bin bin 207 0x000000 Jun 6 2003 tty
crw--w--w- 1 bin bin 1 0x000000 Jun 6 2003 tty0p0
crw-rw-rw- 2 bin tty 17 0x000000 Jun 6 2003 ttyp0
crw------- 1 root root 138 0x000000 May 21 22:41 tun0
#

I still cant't find any useful infomation about this problem.

[Ian Dennison_1]

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0xdf711012aa92d5118ff10090279cd0f9,00.html



Also try "vgscan -v -p".

Share and Enjoy! Ian

[Suresh Patoria]

HI,

Try the following options

1.) vgchange -a y /dev/vg00

2.) check the your /etc/lvmtab file is there,

if not then create trough the vgscan -v -p command

After above step try to access the vg00