CENTOS 7.4 in combi with XEN PV not rebooting

Please take care if running XEN PV and updating Kernel CENTOS 7.4 then not rebooting, is a CENTOS BUG! https://bugs.centos.org/view.php?id=13763#c30014

The kernel-plus could help though https://www.bfccomputing.com/2017/09/15/centos-plus-kernel-for-xen.html

there reading more bugs fixes if installed kernel-plus do rpm -q --changelog kernel-plus

Needs review


Is there anything we can fix in Virtualmin to prevent this problem?

Yes and no. Most important is warning, because it is a base Virtualmin could run on! ;)

Then info not to use the normal kernel but kernel-plus in the yum repo config

If already updated then not boot/restart before you changed this.

rpm -qa kernelĀ  if you see then kernel 3.10.0-693.x.x. or higher
And you use XENVP then not rebooting.
Then do asap replace this kernel for plus kernel

If not updated yet exclude kernel update in the yum config repo.
put this rule in
exclude=kernel kernel-devel kernel-PAE-*

But better folow this link for some kind of manual, if already updated https://www.bfccomputing.com/2017/09/15/centos-plus-kernel-for-xen.html