> From: david > Sent: Sunday, August 2, 2020 10:16 AM > > >> Yes .. it should be on mirror.centos.org now .. you could change the > > >> repo where your updates come from. OR .. wait for that mirror to get > > >> updated. > > > > > > > > > I just did > > > yum clean all > > > yum update > > > > > > and 15-8 showed up. Maybe the 'clean all' > > did it, or maybe just showed up. > > > > > > I applied the update (yum update), rebooted and... > > > no boot. Just a blank screen. > > > > > > Hardware is a Mac-Mini :-( > > > > > > This is not an essential machine, so I could re-install (from > > > netinstall) if you think it's worth the effort. > > > > > > Or what? > > > > > > David > > > >You just need to reinstall the kernel and it should work. > > > > Sorry for being so ignorant, but I don't > understand "just reinstall the kernel". I don't > know how to translate that into a specific yum or rpm command. A quick google - https://ma.ttias.be/reinstall-the-linux-kernel-on-centos-or-rhel/ But I think this is easier: yum install --downloadonly --downloaddir=~/ kernel - OR - wget your kernel version... then rpm -Uvh kernel-*.rpm --replacepkgs