Resizing the LVM

Resize a LVM PVE Root

If you do not switch to the preferred ZFS at install, you end up using LVM storage. It gives a lot of storage to pve-data which is a volume-storage and not a lot for pve-root, and pve-root it’s where your file system is mounted. Proxmox doesn't need much space for pve-root. But sometimes it's too little.

You can check current situation by lvdisplay.

For example, if we want to resize our pve-data to be 200 GiB and also give pve-root the rest of the space, we can do it by do it as follows:

Remove the pve-data logical volume.

lvremove /dev/pve/data -y

Create the pve-date with new size

lvcreate -L 10G -n data pve -T

Allocate the remaining space to pve-root

lvresize -l +100%FREE /dev/pve/root

And then Resize pve-root

resize2fs /dev/mapper/pve-root

Check for Success

lvdisplay