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Diffstat (limited to 'content/articles')
| -rw-r--r-- | content/articles/arch-installation.md | 52 |
1 files changed, 26 insertions, 26 deletions
diff --git a/content/articles/arch-installation.md b/content/articles/arch-installation.md index f8059a8..afcf4b5 100644 --- a/content/articles/arch-installation.md +++ b/content/articles/arch-installation.md @@ -20,22 +20,24 @@ file which can be written to a physical drive like an USB stick or SSD. The installation is based on the following design decisions. -- BIOS / legacy boot -- GPT-based partition table +- UEFI boot +- GUID-based partition table - full disc encryption - Btrfs root filesystem - only a minimalistic set of installed packages (no graphical environment) -Those might change in the future. UEFI boot based on a unified kernel image -would be appreciated to support secure boot but could not be achieved so far. +Those might change in the future. Secure boot with a unified kernel image is +appreciated but not yet implemented. #### Installation First a virtual drive is created as a file as a starting point for the VM -installation. +installation. Additionally a writable copy of the UEFI variables is created to +keep settings. ``` qemu-img create -f qcow2 archlinux.qcow2 8G +cp /usr/share/edk2/x64/OVMF_VARS.4m.fd . ``` It is expected that the Arch Linux `*.iso` installation image is downloaded, @@ -44,6 +46,14 @@ verified and saved in the same folder. See the [download page][3] for details. The installation image can be booted with `qemu-system-x86_64`. The just created virtual machine disk is attached as an additional drive. +It is important that immediately after the first UEFI screen is shown the `e` +key is pressed and ` console=ttyS0 <Enter>` is typed. This makes sure the +console is exposed via a virtual serial console bound to the host terminal. +Booting will take some time. + +This is annoying but worth it since it allows to copy and paste all subsequent +commands instead of typing them by hand. + ``` qemu-system-x86_64 \ -enable-kvm \ @@ -53,21 +63,11 @@ qemu-system-x86_64 \ -smp cpus=4 \ -nographic \ -boot order=d \ + -drive if=pflash,format=raw,readonly=on,file=/usr/share/edk2/x64/OVMF_CODE.4m.fd \ + -drive if=pflash,format=raw,file=OVMF_VARS.4m.fd \ -cdrom archlinux-*.iso ``` -On the first screen of the bootloader it needs to be specified that only the -serial console should be used which is mapped to the host terminal. For that -purpose the text below has to be typed before the bootloader picks the default -options. - -``` -<TAB> console=ttyS0 -``` - -This is annoying but worth it since it allows to copy and paste all subsequent -commands instead of typing them by hand. - After specifying the console the installation image should boot. Next the user `root` without password is used to log in. @@ -83,7 +83,7 @@ The virtual machine disk can be partitioned with `parted`. parted /dev/vda --script mklabel gpt parted /dev/vda --script mkpart primary fat32 1MiB 2GiB parted /dev/vda --script mkpart primary 2GiB 100% -parted /dev/vda --script set 1 legacy_boot on +parted /dev/vda --script set 1 boot on ``` The following commands format the second partition for use with Linux Unified @@ -129,7 +129,6 @@ pacstrap -K /mnt \ linux \ linux-firmware \ parted \ - syslinux \ btrfs-progs \ networkmanager \ chrony \ @@ -169,15 +168,14 @@ systemctl enable NetworkManager systemctl enable chronyd ``` -The `syslinux` bootloader is installed and configured. +The systemd bootloader is installed and configured. ``` -mkdir -p /boot/syslinux -cp /usr/lib/syslinux/bios/*.c32 /boot/syslinux/ -extlinux --install /boot/syslinux -dd bs=440 count=1 conv=notrunc if=/usr/lib/syslinux/bios/gptmbr.bin of=/dev/vda -cp /usr/share/syslinux/syslinux.cfg /boot/syslinux/ -sed -i 's|root=/dev/sda3 rw|cryptdevice=/dev/disk/by-label/CRYPTO_ROOT:root root=/dev/mapper/root console=ttyS0 rw|g' /boot/syslinux/syslinux.cfg +bootctl install +echo 'title Arch Linux +linux /vmlinuz-linux +initrd /initramfs-linux.img +options cryptdevice=/dev/disk/by-label/CRYPTO_ROOT:root root=/dev/mapper/root console=ttyS0 rw' > /boot/loader/entries/arch.conf ``` The initial RAM filesystem (`initramfs`) is configured and created to ensure @@ -221,6 +219,8 @@ qemu-system-x86_64 \ -nic user,model=virtio \ -drive file=archlinux.qcow2,media=disk,if=virtio \ -smp cpus=4 \ + -drive if=pflash,format=raw,readonly=on,file=/usr/share/edk2/x64/OVMF_CODE.4m.fd \ + -drive if=pflash,format=raw,file=OVMF_VARS.4m.fd \ -nographic ``` |