add VNC support to run_archiso.sh

Usage: Launch run_archiso.sh -v ..., and then use a VNC viewer
(e.g. from https://wiki.archlinux.org/index.php/List_of_applications/Internet#Remote_desktop)
to connect (typically to `localhost`) on the default VNC port (5900).

This enables using run_archiso in a "headless" session; e.g. when SSH logged in
to the CLI of a VM, without a local display attached.  This is handy e.g. when
playing https://en.wikipedia.org/wiki/Inception and running an archlinux*.iso
on any non-Arch (say Fedora workstation), on which one built a new ISO, that you
then "run_archiso", inside which you could build another ISO, which you could
itself start inside the nested VM... ;-)

Jokes apart, this could also be used to run automated CI/CD tests of the built ISO,
which is particularly interesting in combination with the cloud-init support;
see https://wiki.archlinux.org/index.php/Cloud-init.

see https://bugs.archlinux.org/task/69142
This commit is contained in:
Michael Vorburger 2020-12-29 20:59:13 +01:00
parent 64091a1802
commit e556491c27
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@ -28,6 +28,7 @@ Options:
-i [image] image to boot into
-s use Secure Boot (only relevant when using UEFI)
-u set boot type to 'UEFI'
-v use VNC display (instead of default SDL)
Example:
Run an image using UEFI:
@ -87,12 +88,12 @@ run_image() {
qemu-system-x86_64 \
-boot order=d,menu=on,reboot-timeout=5000 \
-m "size=3072,slots=0,maxmem=$((3072*1024*1024))" \
-k en \
-k en-us \
-name archiso,process=archiso_0 \
-device virtio-scsi-pci,id=scsi0 \
-device "scsi-${mediatype%rom},bus=scsi0.0,drive=${mediatype}0" \
-drive "id=${mediatype}0,if=none,format=raw,media=${mediatype/hd/disk},readonly=on,file=${image}" \
-display sdl \
-display "${display}" \
-vga virtio \
-audiodev pa,id=snd0 \
-device ich9-intel-hda \
@ -123,12 +124,13 @@ accessibility=''
boot_type='bios'
mediatype='cdrom'
secure_boot='off'
display='sdl'
qemu_options=()
working_dir="$(mktemp -dt run_archiso.XXXXXXXXXX)"
trap cleanup_working_dir EXIT
if (( ${#@} > 0 )); then
while getopts 'abdhi:su' flag; do
while getopts 'abdhi:suv' flag; do
case "$flag" in
a)
accessibility='on'
@ -152,6 +154,10 @@ if (( ${#@} > 0 )); then
s)
secure_boot='on'
;;
v)
display='none'
qemu_options+=(-vnc 'vnc=0.0.0.0:0,vnc=[::]:0')
;;
*)
printf '%s\n' "Error: Wrong option. Try 'run_archiso -h'."
exit 1