lvm error

[Darren Murray_1]

I am currently getting the following error when trying to run a newfs on a logical volume that has been created
Device name cannot determine name of device major number minor number

[Sudeesh]

looks like some issue with device file.
Can you check the device file in /dev//.

Try to see whether the lvol is shown in vgdisplay.

vgdisplay -v /dev/



Sudeesh

[john korterman]

Hi,
check if patches PHCO_7817 and PHCO_20330 are relevant to your situation.

regards,
John K.

[Ranjith_5]

Hi Murray,

try insf -e

try rebooting..

just try this ..many funny problems of mine have got resolved after a reboot.

Also pls Cross check the commands that you have given.

regards,
Syam

[Panuwat]

case vg01
#pvcreate /dev/rdsk/cxdxtx
#mkdir /dev/vg01
#cd /dev/vg01
#mknod group c 64 0x010000
#vgcreate /dev/vg01 /dev/dsk/cxdxtx
#lvcreate -L /dev/vg01
#newfs -F vxfs /dev/vg01/rvol1
#mount /dev/vg01/vol1 /

case vg00
#lvcreate -L -n /dev/vg00
#newfs -F vxfs /dev/vg00/r
#mount /dev/vg01/ /

[Suraj Singh_1]

HI Darren,

What is the o/p of "ll /dev/vgxx". (Use your vg name).

The output should be similar to:

ll /dev/vg00
total 0
crw-r----- 1 root sys 64 0x000000 Jan 29 08:21 group
brw-r----- 1 root sys 64 0x000001 Jan 29 08:21 lvol1
brw-r----- 1 root sys 64 0x000002 Jan 29 08:21 lvol2
brw-r----- 1 root sys 64 0x000003 Jan 29 08:21 lvol3
brw-r----- 1 root sys 64 0x000004 Jan 29 08:21 lvol4
brw-r----- 1 root sys 64 0x000005 Jan 29 08:21 lvol5
brw-r----- 1 root sys 64 0x000006 Jan 29 08:21 lvol6
brw-r----- 1 root sys 64 0x000007 Jan 29 08:21 lvol7
brw-r----- 1 root sys 64 0x000008 Jan 29 08:21 lvol8
crw-r----- 1 root sys 64 0x000001 Jan 29 08:21 rlvol1
crw-r----- 1 root sys 64 0x000002 Jan 29 08:21 rlvol2
crw-r----- 1 root sys 64 0x000003 Jan 29 08:21 rlvol3
crw-r----- 1 root sys 64 0x000004 Jan 29 08:21 rlvol4
crw-r----- 1 root sys 64 0x000005 Jan 29 08:21 rlvol5
crw-r----- 1 root sys 64 0x000006 Jan 29 08:21 rlvol6
crw-r----- 1 root sys 64 0x000007 Jan 29 08:21 rlvol7
crw-r----- 1 root sys 64 0x000008 Jan 29 08:21 rlvol8

If some discrepancy is noticed, than check whether you can display CG and LV (vgdisplay and lvdisplay).

Regards

[Senthil Kumar .A_1]

Hi darren,

The ll of /dev/vg* directory would have helped us understand this issue more better. But never the less, I guess the files meant for LV's in the concerned /dev/vg* dir in your box is a regular file and not a Block or Character file. May be thats the reason why the error message says.."failed to get major and minor" number.. Please be aware i was racking my grey matter about this from my residence and had no access to a HPUX box. So i couldn't simulate the error.

Anyway...i think , you need to check the /dev/vg* dir as others have suggested...

Kind regards
Senthil

[Bharat Katkar]

HI Darren,
See if you r able to see the information of newly created lv.

# lvdisplay /dev/vgxx/lvname

It shoudl display somethign like this:

LV Name /dev/vg00/lvol3
VG Name /dev/vg00
LV Permission read/write
LV Status available/syncd
Mirror copies 0
Consistency Recovery MWC
Schedule parallel
LV Size (Mbytes) 5096
Current LE 637
Allocated PE 637
Stripes 0
Stripe Size (Kbytes) 0
Bad block off
Allocation strict/contiguous
IO Timeout (Seconds) default

See the LV Status here which should be available.

In case it is unavailable for any reasons try doing:

# lvchange -a y /dev/vgxx/lvname

Hope that works.
Regards,

[Sumit Ghoshal]

Hi Darren,

Check the output of ll /dev/vg* it shud give the major and minor no. for all logical volumes.

also check :- pvdisplay -v /dev/vgxx/
lvstatus in the above o/p shud give available

make sure that you r creating the file system on the new lvol by using the below command-
newfs -F vxfs /dev/vg00/rlvolx

hope this will help u.

bye
Sumit