77 lines
2.1 KiB
Bash
Executable file
77 lines
2.1 KiB
Bash
Executable file
#!/bin/sh
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set -eu
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: "${DEFAULT_DIST:=unstable}"
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: "${cachedir:=./shared/cache}"
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tmpdir="$(mktemp -d)"
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cleanup() {
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rv=$?
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rm -f "$tmpdir/debian-$DEFAULT_DIST-overlay.qcow"
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rm -f "$tmpdir/log"
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[ -e "$tmpdir" ] && rmdir "$tmpdir"
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if [ -e shared/output.txt ]; then
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res="$(cat shared/exitstatus.txt)"
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if [ "$res" != "0" ]; then
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# this might possibly overwrite another non-zero rv
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rv=1
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fi
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fi
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exit $rv
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}
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trap cleanup INT TERM EXIT
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ARCH=$(dpkg --print-architecture)
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case $ARCH in
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i386)
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MACHINE="accel=kvm:tcg"
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CODE="/usr/share/OVMF/OVMF32_CODE_4M.secboot.fd"
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QEMUARCH="i386"
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;;
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amd64)
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MACHINE="accel=kvm:tcg"
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CODE="/usr/share/OVMF/OVMF_CODE.fd"
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QEMUARCH="x86_64"
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;;
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arm64)
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MACHINE="type=virt,gic-version=host,accel=kvm"
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CODE="/usr/share/AAVMF/AAVMF_CODE.fd"
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QEMUARCH="aarch64"
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;;
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*) echo "qemu kvm not supported on $ARCH" >&2;;
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esac
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echo 1 > shared/exitstatus.txt
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if [ -e shared/output.txt ]; then
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rm shared/output.txt
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fi
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touch shared/output.txt
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# the path to debian-$DEFAULT_DIST.qcow must be absolute or otherwise qemu will
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# look for the path relative to debian-$DEFAULT_DIST-overlay.qcow
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qemu-img create -f qcow2 -b "$(realpath "$cachedir")/debian-$DEFAULT_DIST.qcow" -F qcow2 "$tmpdir/debian-$DEFAULT_DIST-overlay.qcow"
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# to connect to serial use:
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# minicom -D 'unix#/tmp/ttyS0'
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#
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# or this (quit with ctrl+q):
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# socat stdin,raw,echo=0,escape=0x11 unix-connect:/tmp/ttyS0
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ret=0
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timeout --foreground 40m qemu-system-"$QEMUARCH" \
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-cpu host \
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-no-user-config \
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-M "$MACHINE" -m 4G -nographic \
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-object rng-random,filename=/dev/urandom,id=rng0 -device virtio-rng-pci,rng=rng0 \
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-monitor unix:/tmp/monitor,server,nowait \
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-serial unix:/tmp/ttyS0,server,nowait \
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-serial unix:/tmp/ttyS1,server,nowait \
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-net nic,model=virtio -net user \
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-drive if=pflash,format=raw,unit=0,read-only=on,file="$CODE" \
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-virtfs local,id=mmdebstrap,path="$(pwd)/shared",security_model=none,mount_tag=mmdebstrap \
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-drive file="$tmpdir/debian-$DEFAULT_DIST-overlay.qcow",cache=unsafe,index=0,if=virtio \
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>"$tmpdir/log" 2>&1 || ret=$?
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if [ "$ret" -ne 0 ]; then
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cat "$tmpdir/log"
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exit $ret
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fi
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