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

Status: 
Needs review

Comments

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.
/etc/yum.conf
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

https://bugs.centos.org/view.php?id=13763#c30014