I followed the instructions at https://pve.proxmox.com/wiki/Install_Proxmox_VE_on_Debian_11_Bullseye to add proxmox to an existing Debian machine. Since I had recently upgraded this machine from Bullseye to Bookworm, I replaced all mention of Bullseye with Bookworm, and installed pve-kernel-6.2 instead of 5.15. Everything worked great until I went to remove the old kernel per the directions, then everything went to crap. I rebooted the machine right beforeand all was good. Then I rebooted again after update-grub and now the machine won't boot. The console says something about network.service can't start. I'm attaching a screenshot of the console
apt remove linux-image-amd64 'linux-image-5.10*'