Latest update kept back

[Xela]

Dear Forum

The latest update has been kept back. What is the proper way to proceed with the latest update?

root@xxx:/home/me# apt-get update
Hit:1 http://security.debian.org stretch/updates InRelease
Ign:2 http://ftp.debian.org/debian stretch InRelease
Hit:3 http://ftp.debian.org/debian stretch Release
Hit:4 https://enterprise.proxmox.com/debian/pve stretch InRelease
Reading package lists... Done
root@xxx:/home/me# apt-get upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages have been kept back:
proxmox-ve
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.

 

[fabian]

use 'apt-get dist-upgrade', never 'apt-get upgrade'. PVE introduces new packages (and sometimes conflicts) from time to time, which apt-get upgrade does not handle.

 

[Xela]

Dear Fabian
Thank you for your response. Can this be done while the VM's are in running status? Or do I need to shutdown the VM's first?

 

[fabian]

installing upgrades should never interrupt running guests. obviously, rebooting after a kernel upgrade to boot into the new kernel does

 

[Xela]

Thank's a lot! Have a grateful day!