increase disk spave local lvm

[dejhost]

Hi.
One of my VM's (OPNsense) is desperate for more diskspace. Could you please guide me through the process?

root@proxmox03:~# lsblk
NAME                         MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
rbd0                         252:0    0     8G  0 disk
nvme0n1                      259:0    0 476.9G  0 disk
├─nvme0n1p1                  259:1    0  1007K  0 part
├─nvme0n1p2                  259:2    0   512M  0 part /boot/efi
└─nvme0n1p3                  259:3    0 476.4G  0 part
  ├─pve-swap                 253:0    0     8G  0 lvm  [SWAP]
  ├─pve-root                 253:1    0    96G  0 lvm  /
  ├─pve-data_tmeta           253:2    0   3.6G  0 lvm 
  │ └─pve-data-tpool         253:4    0 349.3G  0 lvm 
  │   ├─pve-data             253:5    0 349.3G  1 lvm 
  │   ├─pve-vm--107--disk--0 253:6    0   128G  0 lvm 
  │   ├─pve-vm--102--disk--0 253:7    0    32G  0 lvm 
  │   ├─pve-vm--105--disk--0 253:8    0    32G  0 lvm 
  │   └─pve-vm--104--disk--0 253:9    0     8G  0 lvm 
  └─pve-data_tdata           253:3    0 349.3G  0 lvm 
    └─pve-data-tpool         253:4    0 349.3G  0 lvm 
      ├─pve-data             253:5    0 349.3G  1 lvm 
      ├─pve-vm--107--disk--0 253:6    0   128G  0 lvm 
      ├─pve-vm--102--disk--0 253:7    0    32G  0 lvm 
      ├─pve-vm--105--disk--0 253:8    0    32G  0 lvm 
      └─pve-vm--104--disk--0 253:9    0     8G  0 lvm

It's the "pve-vm--102--disk--0", that should get increase by 20GB. I believe that "resize2fs" is the correct command? How do I address the target disk?

I am running PVE 7.0.11 on a HP Elitedesk G4. Thanks for helping.

 

[iBug]

Depending on your VM type (LXC container or KVM full VM), you can use either pct resize or qm resize command. In the case of a KVM machine, you'll also need to manually resize the partition and then the filesystem manually.

 

[dejhost]

Hello iBug,

It's a full VM. So the command to use is:

qm resize <vmid> <disk> <size>

Retreiving the ID:

root@proxmox03:~# cat /etc/pve/.vmlist
{
"version": 135,
"ids": {
"105": { "node": "proxmox03", "type": "qemu", "version": 84 },
"107": { "node": "proxmox03", "type": "qemu", "version": 108 },
"102": { "node": "proxmox03", "type": "qemu", "version": 69 },
"104": { "node": "proxmox03", "type": "lxc", "version": 128 },
"100": { "node": "proxmox03", "type": "qemu", "version": 139 },
"101": { "node": "proxmox03", "type": "qemu", "version": 138 },
"103": { "node": "proxmox03", "type": "qemu", "version": 72 }}
}

Which leads to:
qm resize 102 ide0 +20G

That seems to have worked. Next step is to increase the partition and filesystem, which I struggle with:

root@OPNsense:/home/dejhost # gpart show
=>      63  67108801  ada0  MBR  (32G)
        63  67108545     1  freebsd  [active]  (32G)
  67108608       256        - free -  (128K)

=>       0  67108545  ada0s1  BSD  (32G)
         0        16          - free -  (8.0K)
        16  58719921       1  freebsd-ufs  (28G)
  58719937   8388608       2  freebsd-swap  (4.0G)
root@OPNsense:/home/dejhost # df -h
Filesystem           Size    Used   Avail Capacity  Mounted on
/dev/ufs/OPNsense     27G     27G   -1.7G   107%    /
devfs                1.0K    1.0K      0B   100%    /dev
devfs                1.0K    1.0K      0B   100%    /var/dhcpd/dev

Shouldn't it tell me here about available space? Didn't I just add 20GB?

 

[iBug]

Well it's FreeBSD and it's beyond my knowledge. I thought it was a typical Linux system with ext4 because you mentioned resize2fs, which is for the ext filesystem family (ext2 / ext3 / ext4).

You can consult guidances found online via Google-ing, like this one. The general idea is:

• Run any necessary integrity checks to ensure disk and filesystem is in a good state
• "Delete" the partition you want to grow. With most CLI tools (including fdisk, parted and gpart), this only deletes the entry in the partition table and doesn't touch the data.
• Recreate the partition with the same "start sector" and an extended "end sector". This effectively extends the partition in-place. Watch out for any warnings (some may tell you there's a filesystem signature - make sure you don't wipe it).
• Use filesystem-specific tools to grow the filesystem to the new size of the partition. For example, resize2fs for ext2/3/4 and xfs_grow for XFS. I don't know about FreeBSD so you'll have to find the right command by yourself.

Oh, and as well, you need to shutdown-and-start the VM for the new disk size to take effect. A simple reboot from inside may not always work.