Enlarge pbs-root is enough?

[charleslcso]

Hello,

I just cloned my PBS disk-to-disk to a larger SSD, and I want the unused space to be used.

Here is the output from lsblk and lvdisplay:

root@pbs:~# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 3.6T 0 disk
├─sda1 8:1 0 1007K 0 part
├─sda2 8:2 0 1G 0 part /boot/efi
└─sda3 8:3 0 1.8T 0 part
- ├─pbs-swap 253:0 0 8G 0 lvm [SWAP]
- └─pbs-root 253:1 0 1.8T 0 lvm /


root@pbs:~# lvdisplay
File descriptor 21 (/var/log/proxmox-backup/tasks/06/UPID:bs:000002C9::6579BD5E:termproxy::root@pam leaked on lvdisplay invocation. Parent PID 4444: -bash
WARNING: PV a6eXd9-y6nj-otA1-xUtu-AIb7 prefers device /dev/sda3 because device is used by LV.
--- Logical volume ---
LV Path /dev/pbs/swap
LV Name swap
VG Name pbs
LV UUID aD7n-B3iO-7VEN-XUUZ-0bwlyj
LV Write Access read/write
LV Creation host, time proxmox, 2023-11-15 19:06:52 +0800
LV Status available
# open 2
LV Size 8.00 GiB
Current LE 2048
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0

--- Logical volume ---
LV Path /dev/pbs/root
LV Name root
VG Name pbs
LV UUID J97fyP-aLvx-tvUC-abIJ-zNPBgE
LV Write Access read/write
LV Creation host, time proxmox, 2023-11-15 19:06:53 +0800
LV Status available
# open 1
LV Size 1.79 TiB
Current LE 470532
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:1


From the page, 3. Enlarge the filesystem(s) in the partitions on the virtual disk, Online for Linux guests with LVM, I believe it is a 2-step process:

- enlarge the physical volume using pvresize /dev/sda3 <- the 3rd partition
- enlarge the logical volume and the filesystem using lvresize --extents +100%FREE --resizefs /dev/pbs/root <- just the pbs-root is enough?


Am I correct?

 

[sb-jw]

You forgot step 2. You have to enlarge the partition first.

 

[charleslcso]

Thx! Done safely! On Live partition!

Phew!