Q: pve8to9 sanity check "pre flight check script" for upgrade > does not flag "cgroup V1 Removal" drama?

[fortechitsolutions]

Hi, just a small sanity check question, I am part way through a bit of an adventure today, upgrading some Proxmox cluster nodes from Proxmox8 to 9
everything went great, except I forgot until too late, this breaking deal detail with Proxmox V9

cgroup V1 Removal > means that the old workaround which was hybrid cgroup mode enabled on Prox.V8 via the kernel boot flag option = systemd.unified_cgroup_hierarchy=0

is not a viable workaround any longer
and more to the point, there is no check for this in the pve8to9 script
while I think it was the case possibly such a thing existed on pve7to8 (?)

anyhoo. In case it is correct that this is not present in the v8to9 pre-flight script
it might be a small mercy to the remaining forgetful systemadmins out there
for this funtion to be re-enabled along with all the other lovely pre-flight checks that do work smoothly, and flag happily many things very nicely as 'pay attention to this!'

thank you,
Tim

 

[fortechitsolutions]

Ah, ha, this is funny. Looking at output from the script, next day/ now that I am reading it and not quite so sleep deprived, it tells me clearly,

"SKIP: NOTE: Expensive checks, like CT cgroupv2 compat, not performed without '--full' parameter"

So, whoops for me, and good news this is in there. Just for fun I will run wiht that parameter now and I am sure it will give me a good poke in the ribs, as might be suitable.

thank you,
Tim