Proxmox VE 7 to 8 Issues

NTP Network Script locking bootup

We have encountered a rare case where having ntp configured on the physical servers, instead of system-timesyncd or chrony had completely broken our bootup sequence after upgrading Proxmox VE 7.4 (Debian Bullseye) to version 8.0 (Debian Bookworm).

To resolve this issue the following things are recommended prior to server upgrade:

  • Remove the ntp package from your server and virtualize it.
  • Remove the /etc/network/if-up.d/ntpsec-ntpdate script or move it to another directory if present, after upgrading to Bookworm, but before rebooting.
  • Install the chrony package after upgrading your server, also prior to the reboot.

This should prevent you from having booting lockups related to this problem.