I got this message from the grub2 install script: Output of grub2-i386-pc-2.04-2.1.noarch.rpm %posttrans script: update-bootloader: 2019-11-08 20:05:00 <3> update-bootloader-8528 run_command.294: '/usr/lib/bootloader/grub2/install' failed with exit code 1, output: <<<<<<<<<<<<<<<< target = i386-pc /dev/disk/by-path/pci-0000:00:04.0: not a block device grub_installdevice missing or invalid determining suitable boot device disk device(/boot) kernel device = sda2 disk(sda2) = sda disk = sda + /usr/sbin/grub2-install --target=i386-pc --force --skip-fs-probe /dev/sda Installing for i386-pc platform. Installation finished. No error reported. >>>>>>>>>>>>>>>> What does it mean? This is on a QEMU/KVM VPS.