Am 02.08.20 um 04:15 schrieb Kay Schenk: > Questions re this statement in the ZDNET article -- > > "In all cases, users reported that downgrading systems to a previous > release to reverse the BootHole patches usually fixed their problems." > > A previous release of what? GRUB2 > > So that's my first question. There are some canonical packages - the combination/grouping is important. https://lists.centos.org/pipermail/centos-announce/2020-July/035779.html Furthermore the corresponding shim and kernel rpms should be installed together (or the kernel should be reinstalled) https://lists.centos.org/pipermail/centos/2020-August/351180.html > > Second. I'm assuming the the muti-screen UEFI settings I see are standard > for more recent BIOS -- not sure of version. Do we have any guidance for > that? > > If it is the case that a downgrade to previous grub2 can fix the problem -- > and not latest kernel? Does this matter? -- maybe booting from your chosen > "rescue" option AND reinstalling older grub (somehow) can get us further > along. > -- Leon