Title: Snapshot Creation Error in Proxmox VE 7.1-4

[dodar123]

Hello everyone,
I want to create a snapshot of my VM. When the size reaches approximately 10 GB and the process takes around 50 seconds, the following error occurs:
saving VM state and RAM using storage 'local-lvm'
2.01 MiB in 0s
810.41 MiB in 1s
1.92 GiB in 2s
3.05 GiB in 3s
4.21 GiB in 4s
5.31 GiB in 5s
6.10 GiB in 6s
6.59 GiB in 7s
6.80 GiB in 8s
7.04 GiB in 9s
7.24 GiB in 10s
7.38 GiB in 11s
7.38 GiB in 12s
7.38 GiB in 13s
7.38 GiB in 14s
7.38 GiB in 15s
7.38 GiB in 16s
7.38 GiB in 17s
7.38 GiB in 18s
7.38 GiB in 19s
7.38 GiB in 20s
7.38 GiB in 21s
7.38 GiB in 22s
7.38 GiB in 23s
7.38 GiB in 24s
7.38 GiB in 25s
7.38 GiB in 26s
7.38 GiB in 27s
7.38 GiB in 28s
7.38 GiB in 29s
7.38 GiB in 30s
7.38 GiB in 31s
7.38 GiB in 32s
7.38 GiB in 33s
7.38 GiB in 34s
7.38 GiB in 35s
7.38 GiB in 36s
7.38 GiB in 37s
7.38 GiB in 38s
7.38 GiB in 39s
7.38 GiB in 40s
7.38 GiB in 41s
7.38 GiB in 42s
7.38 GiB in 43s
8.03 GiB in 44s
8.82 GiB in 45s
8.84 GiB in 46s
8.84 GiB in 47s
9.53 GiB in 48s
completed saving the VM state in 49s, saved 9.87 GiB
snapshotting 'drive-scsi0' (local-lvm:vm-123-disk-0)
modprobe: ERROR: could not insert 'dm_snapshot': Invalid argument
/sbin/modprobe failed: 1
snapshot: Required device-mapper target(s) not detected in your kernel.
snapshot create failed: starting cleanup
Logical volume "vm-123-state-beforeUpdate" successfully removed
TASK ERROR: lvcreate snapshot 'pve/snap_vm-123-disk-0_beforeJavaUpdate' error: Run `lvcreate --help' for more information.

Is my Kernal invalid?

Informations:​

• Proxmox Version: Proxmox Virtual Environment 7.1-4
• Kernel Version: 5.13.19-1-pve
• root@virt03:~# modprobe dm-snapshot
  modprobe: ERROR: could not insert 'dm_snapshot': Invalid argument
  

Thank you, for your advise

 

[fiona]

Hi,

you wrote dm-snapshot but the error message said dm_snapshot.

P.S. please upgrade to a current version, Proxmox VE 7.1 didn't get any (security) updates since more than two years ago.
https://pve.proxmox.com/pve-docs/chapter-sysadmin.html#system_software_updates
https://pve.proxmox.com/wiki/Package_Repositories#_proxmox_ve_7_x_repositories
https://pve.proxmox.com/wiki/FAQ
https://pve.proxmox.com/wiki/Upgrade_from_7_to_8