https://tteck.github.io/Proxmox/#proxmox-ve-post-install

https://github.com/tteck/Proxmox/discussions/1075#discussioncomment-5091915

mount-hook.sh

#!/bin/sh

blkid=`lvdisplay | grep "LnEP8T-Y0s0-IYO4-U4F5-hd2A-ubhe-IP67ez" -A13 | grep "Block device" | sed "s/.*\s\([0-9]\+\)\:\([0-9]\+\).*/\\1 \\2/g"`

mknod -m 777 ${LXC_ROOTFS_MOUNT}/dev/sda1 b $blkid

https://www.reddit.com/r/homelab/comments/1an5v2b/fix_for_those_with_a_eaton_5e_with_the_usb/

Make sure only first line is used!!