Control: retitle -1 grub doesn't run os-prober by default anymore, so no more other OS detected Control: tag -1 wontfix
On Fri, Jun 23, 2023 at 04:31:55PM -0400, bud wrote: > Package: grub2 > Severity: important > File: grub2 > X-Debbugs-Cc: budheal...@gmail.com > > Dear Maintainer, > > * What led up to the situation? > I installed the 2023-04-24 weekly build, downloaded the 2023-06-05 build and > used that as the jigdo base to download bookworm 12.0.0 > Then I added the 21 DVD images and synaptic suggested adding the online main > repository. After apt-get update --allow-insecure-repositories, I rebooted. > * What exactly did you do (or not do) that was effective (or > ineffective)? > The computer booted into bookworm. However, the existing option to boot > Windows is no longer available. Looking in the Advanced options finds the > prior Linux entry. > > Compare Bugs #1033985, #1008294 and #250626 > > * What was the outcome of this action? > Without a Windows option, there is a suggestion in bug #1033985 that > os-prober will help set me reset the grub list. Otherwise, the Windows DVD > will contrarily erase grub. I only added a Linux partition to this laptop to > investigate a HDMI bug, as this one has HDMI, VGA and DisplayPort connectors. > * What outcome did you expect instead? > Just because the Linux kernel has been updated, any existing entries should > not be erased - except for the one being replaced. > > An update should not erase the settings the user or administrator has added > to customize the system. This looks like a bug. The followup comment from Chris Carr made me understand that this seems to be about the os-prober entries. For security reasons, os-prober is no longer run when writing a new grub.cfg. You can either re-enable it and get exposed to any bug in grub filesystem implementations which will then run as root to mount any disk attached to the system, or add a /etc/grub.d file that echos additional fixed boot entries for your other OS. -- debian developer - deb.li/jak | jak-linux.org - free software dev ubuntu core developer i speak de, en
