On Sat, Dec 28, 2024 at 8:05 PM Rafał Lichwała <ra...@siliconet.pl> wrote: > > I plan to switch completely from Windows 11 to Debian on my laptop, but > as a first step I'd like to configure double-boot setup to give it a > try, look around and check if all hardware works fine under Debian.
See <https://wiki.debian.org/DualBoot>, <https://wiki.debian.org/DualBoot/Windows>, <https://wiki.debian.org/DualBoot/Windows10>, etc. > Current state: > Dell laptop (one NVMe disk only) with Windows 11 onboard. > Windows starts in UEFI mode (Secure Boot ON). > Already resized main partition to make space for Debian. > So currently there are the following partitions on disk: > > 100MB, FAT32, GPT (EFI System Partition) > 16MB, Other, GPT (Reserved Partition) > 300GB, NTFS, GPT (Data Partition) (Main C: disk visible under Win11) > 168GB, free space, ready to have ~150GB for Debian and 16GB for swap > 880MB, NTFS, GPT (Recovery Partition) > > First try: > UEFI Boot (Secure Boot ON), Debian Trixie, Expert mode installation > During installation Debian does NOT see my disk at all (pendrive with > Debian Trixie is visible only) > Also during installation Debian says that "it seems there is another > system installed in Legacy Mode, am I sure to force UEFI mode?" which > is not correct - Win11 is installed in UEFI mode (when I try to boot it > in Legacy Mode I get Windows Blue Screen Of Death) > > Second try: > Secure Boot set to OFF. > Nothing changed during Trixie installation, so no device to install on. > > Third try: > Boot in Legacy Mode (so Secure Boot is OFF). > Debian Trixie can see my laptop disk properly, so installation is > successful, but... > It cannot see my Windows 11 installation when trying to > install/configure/prepare GRUB. > At this step I decided to NOT install GRUB on my main disk to NOT loose > access to my Windows 11 system. > (but Trixie says that it's possible to restore access by manual > configuration of GRUB later on - I'm not sure...) > > Main goal: > To have both current Windows 11 and new Debian Trixie available in GRUB > and properly bootable. > > How to achieve this? :-) See <https://wiki.debian.org/DualBoot>, <https://wiki.debian.org/DualBoot/Windows>, <https://wiki.debian.org/DualBoot/Windows10>, etc. Jeff
