Hi Jan, Thanks very much for your report.
On Thu, Jul 30, 2020 at 03:56:08PM +0100, Jan Stolarek wrote: >Package: grub2-common >Version: 2.02+dfsg1-20+deb10u1 >Severity: important > >Dear Maintainer, > >After installing DSA-4735-1 security update (BootHole fixes) it is no longer >possible to boot Windows from GRUB. Running `update-grub2` correctly detects >presence of Windows Boot Manager and creates GRUB entry for it. However, >selecting that entry on boot leads to black screen and nothing happens no >matter >how long I wait. It is still possible to boot Windows directly from BIOS, i.e. >by bypassing GRUB altogether. Disabling Secure Boot does not help, neither >does >reinstalling GRUB. Hmmm, that's worrying. Let's try to debug this. Are you using Secure Boot on this machine? Reinstalling doesn't fix the problem - ok. Can you please confirm if going back to the previous versions of the Grub packages fixes the problem for you? -- Steve McIntyre, Cambridge, UK. st...@einval.com The two hard things in computing: * naming things * cache invalidation * off-by-one errors -- Stig Sandbeck Mathisen
