Hello, On 13/12/2023 at 20:45, Tj wrote:
After a lot of code-chasing it appears the problem is that grub-installer script fails to set its $bootdev variable: grub-installer: info: Installing grub on '' (note the empty quotes) The target system has two 'disks'. The first has Microsoft Windows Vista with 2 NTFS partitions using msdos label/MBR. The second is empty and intended for the Debian OS and boot-loader. The system boots in BIOS/Legacy/CSM mode.
I suspect this is yet another avatar of bug #1035096, for which I submitted a patch, see <https://salsa.debian.org/installer-team/grub-installer/-/merge_requests/17>.
