$ modeprobe zfs
modprobe: FATAL: Module zfs not found in directory
Typically installable via:
$ sudo apt install zfs-dkms
Check with:
$ dkms status
Tag: kernel
[Proxmox] PVE Kernel Cleaner
Script to remove old/unused kernels on your Proxmox host. Look at Github PVE Kernel Cleaner for the installation guide. To run the script use:
pvekclean