On Thu, Nov 1, 2018 at 12:07 PM, Dr. David Alan Gilbert <dgilbert@xxxxxxxxxx> wrote: > OK; the tricky thing is when you upgrade one host in a small cluster as > you start doing an upgrade, and then once it's got it's first VM you > can't migrate away from it until others are updated; that gets messy. One must always be able to migrate off of kernel N+1 back to kernel N. We depend on that whenever we have to rollback a kernel upgrade.
