Running Slackware with UEFI Support

I used a modified Slackbuild
https://git.sr.ht/~r1w1s1/slackbuilds/tree/main/item/qemu/build

We need to add the user into a kvm group

    usermod -aG kvm r1w1s1

The idea is to test new settings but also use them to build my slackbuilds.

Creating a VM

    qemu-img create -f raw slackware.raw 20G

You need a adicional package from slackbuilds.org
https://slackbuilds.org/repository/15.0/system/edk2-ovmf/

Install Slackware with UEFI Support

    qemu-system-x86_64                                               \
    -machine q35,accel=kvm                                           \
    -boot menu=on                                                    \
    -m 2G                                                            \
    -cpu max                                                         \
    -smp 2                                                           \
    -cdrom /home/r1w1s1/VMs/ISOs/slackware64-current-install-dvd.iso \
    -drive file=/home/r1w1s1/VMs/slackware.raw,format=raw            \
    -bios /usr/share/edk2-ovmf-x64/OVMF_CODE.fd

Do not install Lilo and run the below commands before restart the installation

    chroot /mnt
    source /etc/profile
    grub-install
    mkdir -p /boot/efi/EFI/BOOT
    cp /boot/efi/EFI/slackware-15+/grubx64.efi /boot/efi/EFI/BOOT/Bootx64.efi
    geninitrd
    update-grub
    grub-install --removable

Run Slackware with UEFI Support (with port redirect and mount host home folder)

    qemu-system-x86_64                                              \
    -machine q35,accel=kvm                                          \
    -boot menu=on                                                   \
    -m 2G                                                           \
    -cpu max                                                        \
    -smp 2                                                          \
    -drive file=/home/r1w1s1/VMs/slackware.raw,format=raw           \
    -bios /usr/share/edk2-ovmf-x64/OVMF_CODE.fd                     \
    -nic user,hostfwd=tcp::8888-:22                                 \
    -device AC97                                                    \
    -fsdev local,id=fsdev0,path=/home/r1w1s1,security_model=none    \
    -device virtio-9p-pci,id=fs0,fsdev=fsdev0,mount_tag=host_share

Access the host

    ssh r1w1s1@127.0.0.1 -p 8888

Need to mount in the host computer

    mkdir /mnt/shared_folder
    mount -t 9p -o trans=virtio host_share /mnt/shared_folder -oversion=9p2000.L