pve8to9 problem sliff/230.0.163.0 installed

[muekno]

pve8to9
WARN: dkms modules found, this might cause issues during upgrade.

dkms status lists
sliff/230.0.163.0: added
google research means that tis may make problems in upgrade to PVE 9.x

need help or hint, haveonly the weekend for upgrade my cluster

 

[news]

pve8to9
WARN: dkms modules found, this might cause issues during upgrade.

dkms status lists
sliff/230.0.163.0: added
google research means that tis may make problems in upgrade to PVE 9.x

need help or hint, haveonly the weekend for upgrade my cluster

So you don't touch your system, that's safe.
You need to setup Testsystem with your courned hardware and read maybe this article:
# https://www.thomas-krenn.com/en/wiki/Installation_NICCLI_under_Proxmox_VE