vmunix: WARNING: Logical volume for Dump expected but not found

[bharani chepuri]

Hi,
There was a disk miroring performed for HP-UX A1C100MA B.11.11 U 9000/785 2014853764,and when tried to boot from primary disk it throws the following error message
vmunix: WARNING: Logical volume for Dump expected but not found
but the disk is working.
The following is the sequence in the syslog.log
A1C100MA vmunix: Logical volume 64, 0x3 configured as ROOT
A1C100MA vmunix: Logical volume 64, 0x2 configured as SWAP
A1C100MA vmunix: WARNING: Logical volume for Dump expected but n
ot found.
A1C100MA vmunix: Swap device table: (start & size given in
512-byte blocks)
A1C100MA vmunix: entry 0 - major is 64, minor is 0x2; st

[Patrick Wallek]

Normally your swap volume is also your dump volume. Apparently not in this case though.

Please post the output of 'lvlnboot -v'.

[bharani chepuri]

Could you pleses explain , what does the command do and does it require a reboot.

[Gokul Chandola]

Hi,
lvlnboot - prepare LVM logical volume to be root, boot, primary swap,
or dump volume.
Description:
The lvlnboot command updates all physical volumes in the volume group
so that the logical volume becomes the root, boot, primary swap, or a
dump volume when the system is next booted on the volume group. If a
nonexistent logical volume is specified, this command fails. If a
different logical volume is already linked to the root or primary
rd input.


** HERE [-v] [vg_name] **

Regards,
Gokul Chandola

[Prashanth Waugh]

Hi Bharanidharn,


lvlnboot -v command will show the lv in vg00 like swap. do u know before booting from alternate disk ,on primary disk dump is configered or not.

Regards
Prashant

[bharani chepuri]

Please explain me,what does the lvlnboot -f command do, as i am not able to find the -f option anywhere also please explain me if this command would have any effect on a runing system,like will it restart the system, or cause any problem on a production system?

[Dennis Handly]

>what does the lvlnboot -f command do

I see no -f here. The suggested "lvlnboot -v" command will just display the values and not cause any problem on your production system.

I get something like:
# lvlnboot -v
Boot Definitions for Volume Group /dev/vg00:
Physical Volumes belonging in Root Volume Group:
/dev/dsk/c2t1d0s2 (0/1/1/0.1.0) -- Boot Disk
Boot: lvol1 on: /dev/dsk/c2t1d0s2
Root: lvol3 on: /dev/dsk/c2t1d0s2
Swap: lvol2 on: /dev/dsk/c2t1d0s2
Dump: lvol2 on: /dev/dsk/c2t1d0s2, 0

[bharani chepuri]

i got it, thank you, will get back to you with the output

[bharani chepuri]

Here is the output

#root# lvlnboot -v

Boot Definitions for Volume Group /dev/vg00:

Physical Volumes belonging in Root Volume Group:

/dev/dsk/c2t6d0 (10/0/15/0.6.0) -- Boot Disk /dev/dsk/c2t5d0 (10/0/15/0.5.0) -- Boot Disk

Boot: lvol1 on: /dev/dsk/c2t6d0

/dev/dsk/c2t5d0

Root: lvol3 on: /dev/dsk/c2t6d0

/dev/dsk/c2t5d0

Swap: lvol2 on: /dev/dsk/c2t6d0

/dev/dsk/c2t5d0

Dump: lvol2 on: /dev/dsk/c2t6d0, 0


how shall i proceed?

[Torsten.]

"There was a disk miroring performed" ... is the disk still there?

Please post

# vgdisplay -v vg00

If the disks are all ok, write the information about the dump location again:

lvlnboot -r /dev/vg00/lvol3
lvlnboot -b /dev/vg00/lvol1
lvlnboot -s /dev/vg00/lvol2
lvlnboot -d /dev/vg00/lvol2

[bharani chepuri]

Yes the disk mirroring still exists

[bharani chepuri]

Hi,
Please explain me of what is proper disk volumes. i have attached the output of vgdisplay -v, as we are unable to get vg00 volume output.

[Prashanth Waugh]

Hi Bharani,

Pls explain in details what u want.

Reagrds
Prashnat

[bharani chepuri]

Hi,
It was mentioned,"If the disks are all ok, write the information about the dump location again:"
I dint understand what it means by disks are all ok.
Attached the out put of vgdisplay -v,so please explain me of how i can verify if the disks are ok

[Prashanth Waugh]

Hi Bharni,

there is no free PE.
--- Physical volumes ---
PV Name /dev/dsk/c2t6d0
PV Status available
Total PE 4382
Free PE 0
Autoswitch On

PV Name /dev/dsk/c2t5d0
PV Status available
Total PE 4382
Free PE 0
Autoswitch On

Regards
Prashant

[Prashanth Waugh]

Hi Bharni,

for verifiaction of disk command is #diskinfo /dev/rdsk/cntndn

check manpages for it

Regards
Prashant

[bharani chepuri]

Hi Prashant,
Doest PE=0 result in the following error:
vmunix: WARNING: Logical volume for Dump expected but n
ot found.

[Torsten. · Accepted solution]

vg00 looks good, so do now

lvlnboot -r /dev/vg00/lvol3
lvlnboot -b /dev/vg00/lvol1
lvlnboot -s /dev/vg00/lvol2
lvlnboot -d /dev/vg00/lvol2

[sreekanthtm]

# lvlnboot -d /dev/vg00/lvol2

Will do the job. If its not working then run

# lvrmboot -d /dev/vg00/lvol2
# lvlnboot -d /dev/vg00/lvol2

Cheers..

[bharani chepuri]

can we run lvlnboot -* commands in a shared mode system?
And do we have to reboot the system after doing this?

Do we have to take any back up before running these commands?

[Torsten.]

It's safe to run them, no reboot needed. But you should reboot soon to check if it works now.

[bharani chepuri]

Hi all,
Thanks to all of you for the resolution provided,
The issue is resolved after running the lvlnboot -R command.