@olivierlambert
Thanks for your reply.

Since this is just a spare server, I decide to perform a new fresh install.
Previous install of Beta was easy (I think that it was via Bios) but this final release causes a lot of trouble:

in UEFI no success, even after wiping all the SSDs with Gparted-live-cd (because XenServer and XCP-NG have sometimes trouble to remove flags from ZFS, Raid, LVM or others, according to olders posts.

in Bios mode, install works but one NVMe of two is not detected (the one seated on a U2-pcie adapter)

Now I'm facing a hardware problem known of these DELL Rx20 (server halted at boot) with a pcie adapter. So I'm trying to shutdown for a while the machine via the IDRAC and try a cold boot.
If not working I have to reseat PCI riser as it is advised in many forums.
This prevent me to upgrade via iso two productions servers (DELL R520 and R820) before having solved the current issue on the backup machine.

@olivierlambert said in Same CPU XEON 4309Y but migration failed because some CPU features missing !:

It could be microcode update and BIOS update making that change. Since they are not in the same pool, this can be expected. Indeed, migrate to the more recent, upgrade the old one/reboot and that should do the trick.

Yes, the BIOS/microcode differences do sometimes change the CPU mask. They need to be identical in many cases on all hosts within a pool.

@stormi

Thanks for your answer.

I'll give a try later, bypassing the PFBlocker module of the router.

Github is not currently on any blacklist, but I block Digital Ocean and some others who host many attackers.

@Danp Yes I did that and it looks good now.

Hi,

You can use the warm migration in your case, yes 🙂 To me, that's one of the use case where it's safer than a live/hot one.

@KPS This is an internal ticket. But I'm not against having a public issue as well 🙂