====== Proxmox - Disks - Remove Device Mapper usage ======
List the disk partitions
lsblk -f
returns:
NAME FSTYPE LABEL UUID FSAVAIL FSUSE% MOUNTPOINT
sda
├─sda1
├─sda2 vfat 8B1B-5126 510.7M 0% /boot/efi
└─sda3 LVM2_member MA9I5I-auY3-MWGS-94Ad-6x3k-uuXl-nlhNQ9
├─pve-swap swap 3c213912-aa63-4daf-a2f1-c7926012e862 [SWAP]
├─pve-root ext4 7673ba15-2fd7-4dd2-844a-fda9850af328 51.3G 5% /
├─pve-data_tmeta
│ └─pve-data
└─pve-data_tdata
└─pve-data
sdb
sdc
└─VM1-vm--100--disk--0
sdd
sr0
**NOTE:** The **sdc** disk shows that **VM1-vm--100--disk--0**.
The usual approach to remove a partition from a disk does not work; i.e. by running this:
fdisk /dev/sdc
* **p** (to print partitions),
* and **d** (to delete a partition),
* and **w** to write.
----
===== Solution =====
Try the following options:
**WARNING:** Ensure the correct device is used with these commands, as it will wipe all the data on the specified disk!
wipefs -a -f /dev/sdc partprobe /dev/sdc pvesm scan
or
gdisk /dev/sdc
* then **x** for extra commands.
* then **z** for zap.
or
sgdisk --zap-all /dev/sdc
**NOTE:** A reboot might be needed of Proxmox to show the fresh results.