These instructions work on Debian 11 with firmware-11.6.0-amd64-netinst.iso. But they fail to produce a working image using debian-bookworm-DI-rc1-amd64-netinst.iso
- boot iso and select advanced and then expert install. - follow the process as normal until Partitioning disk. - create new gpt partition table - create 500MB EFI System Partition - create the rest of the drive as BTRFS mounted as / - I didn't create a swap since I use zramswap later. - write to disk all changes. Before proceeding with the next step of Installing base system do the following: - CTRL F2 to bring up console df -h to check drive device names and mount points. umount /target/boot/efi umount /target mount /dev/nvme0n1p2 /mnt mv @rootfs @ btrfs su cr @home mount -o noatime,compress=zstd,space_cache,ssd,discard=async,subvol=@ /dev/nvme0n1p2 /target mkdir -p /target/boot/efi mkdir /target/home mount -o noatime,compress=zstd,space_cache,ssd,discard=async,subvol=@home /dev/nvme0n1p2 /target/home mount /dev/nvme0n1p1 /target/boot/efi Now edit /target/etc/fstab and line for / to include: noatime,compress=zstd,space_cache,ssd,discard=async,subvol=@ instead of default and subvol=@rootfs add similar line with same UUID for /home with options as above except use @home. save and exit out of fstab edits. Crtl-d to exit console and CRTL-F1 to get back to install and proceed with installing base system. All of this works correctly from appearance except on Debian 12 the boot console is full of systemd-timesync type messages that all fail. In Cinnamon, it never makes it to a login window but you get a login prompt on the console but it's slow and not much works.
