Disk partition has a holder (500)

I tried wiping a disk that was previously used as a LVM and got this error:

disk/partition '/dev/sdc' has a holder (500)

I’ve found a working solution on: https://www.diy-viking.com/proxmox-disk-partition-has-a-holder/

DIY Viking says that the previously used disk still has old configuration that must be removed before wiping the disk.

In the ProxMox shell type:

lsblk

This will list volumes, in my case it’s:

root@proxmox:~# lsblk
NAME                                MAJ:MIN RM   SIZE RO TYPE MOUNTPOINTS
sda                                   8:0    0   1.8T  0 disk 
└─sda1                                8:1    0   1.8T  0 part /mnt/data-disk-2tb
sdb                                   8:16   0   3.6T  0 disk 
sdc                                   8:32   0   1.8T  0 disk 
├─immichi--nas-immichi--nas_tmeta   252:15   0  15.9G  0 lvm  
│ └─immichi--nas-immichi--nas-tpool 252:17   0   1.8T  0 lvm  
│   ├─immichi--nas-immichi--nas     252:18   0   1.8T  1 lvm  
│   ├─immichi--nas-vm--106--disk--0 252:19   0   200G  0 lvm  
│   ├─immichi--nas-vm--107--disk--0 252:20   0   175G  0 lvm  
│   ├─immichi--nas-vm--104--disk--0 252:21   0   100G  0 lvm  
│   ├─immichi--nas-vm--105--disk--0 252:22   0    20G  0 lvm  
│   └─immichi--nas-vm--103--disk--0 252:23   0    32G  0 lvm  
└─immichi--nas-immichi--nas_tdata   252:16   0   1.8T  0 lvm  
  └─immichi--nas-immichi--nas-tpool 252:17   0   1.8T  0 lvm  
    ├─immichi--nas-immichi--nas     252:18   0   1.8T  1 lvm  
    ├─immichi--nas-vm--106--disk--0 252:19   0   200G  0 lvm  
    ├─immichi--nas-vm--107--disk--0 252:20   0   175G  0 lvm  
    ├─immichi--nas-vm--104--disk--0 252:21   0   100G  0 lvm  
    ├─immichi--nas-vm--105--disk--0 252:22   0    20G  0 lvm  
    └─immichi--nas-vm--103--disk--0 252:23   0    32G  0 lvm  
sdd                                   8:48   0 111.8G  0 disk 
├─sdd1                                8:49   0  1007K  0 part 
├─sdd2                                8:50   0     1G  0 part 
└─sdd3                                8:51   0 110.8G  0 part 
  ├─pve-swap                        252:0    0     8G  0 lvm  [SWAP]
  ├─pve-root                        252:1    0  37.7G  0 lvm  /
  ├─pve-data_tmeta                  252:2    0     1G  0 lvm  
  │ └─pve-data-tpool                252:6    0  49.3G  0 lvm  
  │   └─pve-data                    252:7    0  49.3G  1 lvm  
  └─pve-data_tdata                  252:3    0  49.3G  0 lvm  
    └─pve-data-tpool                252:6    0  49.3G  0 lvm  
      └─pve-data                    252:7    0  49.3G  1 lvm  
root@proxmox:~#

To be able to wipe my SDC, I will have to remove all these entries connected to my SDC but in reverse order, starting with the lowest and progressing towards the top.

The command to remove an entry is:

dmsetup remove <NAME>

Name is obviously the name of an entry, so in my case I will start with:

dmsetup remove immichi--nas-vm--103--disk--0

and finish with:

dmsetup remove immichi--nas-immichi--nas_tmeta

Tested on Ubuntu & Pop OS