Error when resizing VM Partition

[lccouncil]

After following the Nagios XI - Resizing the VM Disk Size documentation step by step, we have come to a halt at resizing the logical volume (LV).

With the following command:

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# lvresize /dev/mapper/VolGroup00-LogVol00 /dev/sda2

The following error appears and the partition has not been resized.

Volume group "VolGroup00" not found

We are unable to the continuing steps to complete resize after this. Can you please assist?

[sreinhardt]

Is this install from our provided CentOS VM or your own install? We can start with:

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ls -lv /dev/mapper/
df -h

[lccouncil]

Yes this is from your provided CentOS VM. I want to resize to the partition to 25GB

I have the following after starting the instructions again:

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[root@issmonitor ~]# lvresize /dev/mapper/volgroup00-logvol00 /dev/sda2
  Volume group "volgroup00" not found
[root@issmonitor ~]# ls -lv /dev/mapper/
total 0
lrwxrwxrwx 1 root root      7 Dec  1 17:33 VolGroup-lv_root -> ../dm-0
lrwxrwxrwx 1 root root      7 Dec  1 17:33 VolGroup-lv_swap -> ../dm-1
crw-rw---- 1 root root 10, 58 Dec  1 17:33 control
[root@issmonitor ~]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup-lv_root
                      7.5G  2.3G  4.9G  32% /
tmpfs                 498M     0  498M   0% /dev/shm
/dev/sda1             485M   50M  410M  11% /boot
[root@issmonitor ~]#

[lmiltchev]

Replace all instances of "/dev/mapper/VolGroup00-LogVol00" with "/dev/mapper/VolGroup-lv_root" in the document's commands.

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lvresize /dev/mapper/VolGroup-lv_root /dev/sda2
resize2fs /dev/mapper/VolGroup-lv_root

[lccouncil]

Success! Thanks for your assistance.