apmuthu said:
↑
Errors such as "standard file exists" are cryptic indeed and only Proxmox subscription holders can partake of support from the horse's mouth.
Dietmar said: ↑
The error is quite clear to me - a VM config file with the same VMID already exists - the simple solution is to use 'mv' instead of 'cp'.
This is a disingenious answer from Dietmar.
The error occurs because /etc/pve is virtual file system managed by the
cluster file system, even if you only have one node. The files actually live inside a managed database. If a 100.conf file exists on any node, including the deleted and not available node, it is deemed to exist, since the cluster manager doesn't allow two nodes to exist in the same datacenter to have the same (conflicting) node number.
* provides strong consistency checks to avoid duplicate VM IDs
If you follow the instructions in link above to take the cluster offline, then you can make the changes in local mode.
service pve-cluster stop
pmxcfs --local
(make changes)
service pve-cluster stop
restart pve services (or reboot)