Expand KVM image to use whole virtual disk question

Hi all,

This is for Ubuntu20LTS KVM server host with Ubuntu20LTS guest

I am interested in increasing the size of one KVM guest, currently at 319G inside the guest:

Code:

root@webserv:/home/adminpc# pvs
  PV         VG         Fmt  Attr PSize    PFree
  /dev/vda1  webserv-vg lvm2 a--  <319.00g    0
root@webserv:/home/adminpc# vgs
  VG         #PV #LV #SN Attr   VSize    VFree
  webserv-vg   1   2   0 wz--n- <319.00g    0
root@webserv:/home/adminpc# lvs
  LV     VG         Attr       LSize    Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  root   webserv-vg -wi-ao---- <318.04g                                                 
  swap_1 webserv-vg -wi-ao----  980.00m                                                 
root@webserv:/home/adminpc#

On the KVM host side, I don't need to adjust the actual LV's

Code:

root@serv:/home/adminpc# pvs
  PV         VG  Fmt  Attr PSize PFree
  /dev/sdd5  LVG lvm2 a--  1.63t 5.00g
root@serv:/home/adminpc# vgs
  VG  #PV #LV #SN Attr   VSize VFree
  LVG   1   9   0 wz--n- 1.63t 5.00g
root@serv:/home/adminpc# lvs
  LV        VG  Attr       LSize  Pool Origin Data%  Meta%  Move Log Cpy%Sync Convert
  bak       LVG -wi-ao----  7.50g                                                 
  home      LVG -wi-ao----  1.80g                                                 
  opt       LVG -wi-ao---- 52.00g                                                 
  root      LVG -wi-ao----  4.00g                                                 
  srv       LVG -wi-ao----  3.80g                                                 
  tmp       LVG -wi-ao----  3.50g                                                 
  usr       LVG -wi-ao---- 10.00g                                                 
  var       LVG -wi-ao----  4.00g                                                 
  vmstorage LVG -wi-ao----  1.54t                                                 
root@serv:/home/adminpc#

The actual guest that I am interested in increasing is located in LV/vmstorage, and it is called "webserv"

Code:

root@serv:/home/adminpc# cd /var/vmstorage
root@serv:/var/vmstorage# virt-filesystems -l -h --all -a webserv
Name                   Type       VFS  Label MBR Size Parent
/dev/webserv-vg/root   filesystem ext4 -     -   318G -
/dev/webserv-vg/swap_1 filesystem swap -     -   980M -
/dev/webserv-vg/root   lv         -    -     -   318G /dev/webserv-vg
/dev/webserv-vg/swap_1 lv         -    -     -   980M /dev/webserv-vg
/dev/webserv-vg        vg         -    -     -   319G /dev/sda1
/dev/sda1              pv         -    -     -   319G -
/dev/sda1              partition  -    -     8e  319G /dev/sda
/dev/sda               device     -    -     -   519G -
root@serv:/var/vmstorage#

The virtual harddisc space shows as 519G, the filesystem shows as 319G
I would like to increase to image to use the whole 519G.

I have tried "lvextend -l +100%FREE -r /dev/webserv-vg/root" inside guest but it is already maxed out

Code:

root@webserv:/home/adminpc# lvextend -l +100%FREE -r /dev/webserv-vg/root
  Size of logical volume webserv-vg/root unchanged from <318.04 GiB (81418 extents).
  Logical volume webserv-vg/root successfully resized.
resize2fs 1.45.5 (07-Jan-2020)
The filesystem is already 83372032 (4k) blocks long.  Nothing to do!

root@webserv:/home/adminpc#

Any help will be greatly appreciated
Thank you