topic Re: vgdisplay error in Operating System - HP-UX

vgdisplay error

fahad_8 — Tue, 26 Jun 2007 03:54:07 GMT

vgdisplay not working !!!

Dear Gentlemen

i tried to display the volume group , through vgdisplay command , unfortunatly not working , it give us this error

# vgdisplay -v vgbssb

vgdisplay: "/dev/vgbssb/group": not a character device.

vgdisplay: Cannot display volume group "vgbssb".

Kindly help us on this issue

Re: vgdisplay error

Fred Ruffet — Tue, 26 Jun 2007 04:16:15 GMT

could you please report the result of the following commands :
ls -ld /dev/vgbssb
ls -l /dev/vgbssb

It will help us to see problems concerning files/dirs rights and definitions.

Regards,

Fred

Re: vgdisplay error

Luk Vandenbussche — Tue, 26 Jun 2007 04:17:14 GMT

Can you post the output off

ls -l /dev/vgbssb/group

Re: vgdisplay error

fahad_8 — Tue, 26 Jun 2007 04:36:27 GMT

Dear

Here are the output
====================================
# ls -ld /dev/vgbssb
drwxrwxrwx 2 root sys 96 Mar 17 15:48 /dev/vgbssb
=======================================
#ls -l /dev/vgbssb/group
/dev/vgbssb/group not found =================================== # ls -l /dev/vgbssb
total 0

Best regards

Re: vgdisplay error

gstonian — Tue, 26 Jun 2007 05:49:31 GMT

Have you done a vgcreate already ?

When creating a VG always follow the following steps

mkdir /dev/vgbssd
mknod /dev/vgbssb/group C 64
vgcreate

Check here for more info

http://www.docs.hp.com/en/B9106-90008/mknod.1M.html

Re: vgdisplay error

fahad_8 — Tue, 26 Jun 2007 06:16:34 GMT

i didnt create the VG's

i just take this system responsibilities

also there are file system moumnted on this volume group

regards

Re: vgdisplay error

Prashanth.D.S — Tue, 26 Jun 2007 13:08:16 GMT

Hi Fahad,

It seems that someone has deleted the group file that holds information about ur volume group and lv... nothing to worry about pls follow the below instruction and recreate a group file and everything should work fine.

#mknod /dev/vgbssb/group c 64 0x050000
#vgchange -a y vgbssb
#vgdisplay -v vgbssb

Best Regards,
Prashanth

Re: vgdisplay error

Prashanth.D.S — Tue, 26 Jun 2007 16:45:05 GMT

Hi Fahad,

To determine what was the minor number 0x0x0000 of your group you may run the below command..

#ll /dev/vgbssb

Example:

# ll /dev/vg02
total 0

brw-r----- 1 root sys 64 0x050001 Jun 26 23:37 lvol1
crw-r----- 1 root sys 64 0x050001 Jun 26 23:37 rlvol1

Here Minor number of lvol is 0x050001 so you use minor number for group as 0x050000

Best Regds,
Prashanth