When I first moved from Linux Mint to Qubes, I first saved the grub configuration I had.
I installed Qubes (didn’t have Windows option), added the Windows option to grub, unt voila, I could boot into Windows (if I wanted to play games) or Qubes (for everything else).
When I re-installed Qubes (now 4.2, which gave me its own set of problems, now solved, see Qubes 4.2 installation fails at networking). I thought, okay, I’ll just modify grub and get my Windows bootable again. So I added the following to /etc/grub/40_custom:
menuentry 'Windows 10 (on /dev/sdb1)' --class windows --class os $menuentry_id_option 'osprober-chain-ABCDEF0123456789' {
savedefault
insmod part_msdos
insmod ntfs
set root='hd1,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 ABCDEF0123456789
else
search --no-floppy --fs-uuid --set=root ABCDEF0123456789
fi
parttool ${root} hidden-
drivemap -s (hd0) ${root}
chainloader +1
}
(I’ve anonymised the ABCDEF0123456789 numbers just in case)
And regenerated grub with grub2-mkconfig -o /boot/grub2/grub.cfg.
This time however, when I reboot, I see the Windows 10 option (hoorays), but when I try boot, I get this:
error: file `/grub2/x86_64-efi/ntldr.mod' not found.
error: file `/grub2/x86_64-efi/ntfs.mod' not found.
error: can't find command `ntldr'.
Looking at /dev/sdb1, those are the files that are in there (ntldr.mod, ntfs.mod don’t exist).
I’m not really sure what to do. Those files are clearly DOS type files, (not Linux type). This used to work with the old Qubes but not this.
Any ideas how to fix?
Thanks