https://forum.proxmox.com/threads/how-to-mount-existing-disk-to-storage.66559/ echo 'UUID=ee3de83b-6772-4836-9ad5-3e917ffd1159 /mnt/pve/data3 ext4 defaults 0 2' >> /etc/fstab lsblk -o +FSTYPE,UUID root@vm:/mnt/pve/data3# lsblk -o +FSTYPE,UUID NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS FSTYPE UUID sda 8:0 0 931.5G 0 disk ├─sda1 8:1 0 931.5G 0 part zfs_member 13182290621352676603 └─sda9 8:9 0 8M 0 part sdb 8:16 0 931.5G 0 disk └─sdb1 8:17 0 931.5G 0 part /mnt/pve/data3 xfs ee3de83b-6772-4836-9ad5-3e917ffd1159 zd0 230:0 0 500G 0 disk ├─zd0p1 230:1 0 1G 0 part xfs bfb451b7-b