Windows won't show up in GRUB
Recently installed Windows on a separate drive (SATA SSD). It shows up on Boot list and I am able boot into it and Bazzite back and forth just fine, provided I enter BIOS.
MOBO is on CSM/Legacy mode and Windows Drive is being read/is under UEFI. I disabled Fast Boot and Secure Boot beforehand, and recently just disabled Fast Startup in Windows thinking that was the culprit.
I followed the following documentation: https://docs.bazzite.gg/General/Installation_Guide/dual_boot_setup_guide/
ujust regenerate-grub yielded
yet when booted into GRUB, all I see are Fedora with different ostrees
6 Replies
It doesn't look like it's seeing your Windows EFI entry at all. This is what I get with
ujust regenerate-grub
Have you tried disabling CSM/Legacy mode altogether and then regenerating grubI see.
Yes, I also disabled CSM/Legacy and switched to UEFI but unfortunately my Bazzite m.2 drive is not seen in the boot list, only Windows under UEFI drive, leaving me unable to boot in Bazzite unless in CSM
Right now, I'm trying to see if installing Windows under CSM/Legacy will work.
Installing Windows 10 under CSM and inputting
ujust regenerate-grub yields
Does this mean that this feature is exclusive only to UEFI?
Final Update: Installing Windows 10 under/for CSM and ujust regenerate-grub solved everythingIt would have been better going the other way around (reinstalling Bazzite with CSM disabled). You typically want UEFI enabled and CSM disabled completely
disable uefi, reinstall bazzite with uefi and install windows in uefi mode
enjoy the performance uplift
staying in CSM more you will get worse performance and less to no support from us
I ended up using rEFInd to help jump between windows and bazzite on on GPD Win4, works a treat. http://www.rodsbooks.com/refind/
I've since nuked windows but this was great until then
Grateful for the advice and thank you for the suggestion