Updating/Upgrading an unmaintained installation


Oct 17, 2018
Hi there,

I've got access to a pretty unmaintained proxmox installation (in production :( ) that hasn't been updated for at least a year:

# pveversion -v
proxmox-ve: 4.4-103 (running kernel: 4.4.98-3-pve)
pve-manager: 4.4-21 (running version: 4.4-21/e0dadcf8)
pve-kernel-4.4.6-1-pve: 4.4.6-48
pve-kernel-4.4.98-3-pve: 4.4.98-103
pve-kernel-4.4.19-1-pve: 4.4.19-66
lvm2: 2.02.116-pve3
corosync-pve: 2.4.2-2~pve4+1
libqb0: 1.0.1-1
pve-cluster: 4.0-54
qemu-server: 4.0-114
pve-firmware: 1.1-11
libpve-common-perl: 4.0-96
libpve-access-control: 4.0-23
libpve-storage-perl: 4.0-76
pve-libspice-server1: 0.12.8-2
vncterm: 1.3-2
pve-docs: 4.4-4
pve-qemu-kvm: 2.9.1-5~pve4
pve-container: 1.0-104
pve-firewall: 2.0-33
pve-ha-manager: 1.0-41
ksm-control-daemon: 1.2-1
glusterfs-client: 3.5.2-2+deb8u3
lxc-pve: 2.0.7-4
lxcfs: 2.0.6-pve1
criu: 1.6.0-1
novnc-pve: 0.5-9
smartmontools: 6.5+svn4324-1~pve80

As Proxmox is using a rolling release approach (and I've made really bad experiences on an neglegted Arch where I skipped intermediate-updates after several months (greetings, libc)):

How probable it is that $ apt update & apt dist-upgrade -y just brings everything up to date without destroying the whole system?
So the answer is that "apt dist-upgrade" (or a click on the upgrade button in the web gui) will most probably break something even if it is only eg. proxmox-ve 4.4-103 to 4.4-112 or pve-qemu-kvm 4.4-21 to 4.4-24 and it is officially recommended to start on new hardware and move the VMs to the new machine? Awesome :(


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