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#!/bin/bash
# Check which virtualization technology to use
# We prefer kvm, kqemu, userspace in that order.
export PATH=/sbin:/bin:/usr/sbin:/usr/bin
[[ -x /usr/bin/qemu ]] && BIN=/usr/bin/qemu && ARGS=""
$(lsmod | grep -q '^kqemu ') && BIN=/usr/bin/qemu && ARGS="-kernel-kqemu "
[[ -c /dev/kvm && -x /usr/bin/kvm ]] && BIN=/usr/bin/kvm && ARGS=""
[[ -c /dev/kvm && -x /usr/bin/qemu-kvm ]] && BIN=/usr/bin/qemu-kvm && ARGS=""
[[ -c /dev/kvm && -x /usr/libexec/qemu-kvm ]] && BIN=/usr/libexec/qemu-kvm && ARGS=""
[[ $BIN ]] || {
echo "Could not find a working KVM or QEMU to test with!" >&2
echo "Please install kvm or qemu." >&2
exit 1
}
KVERSION=${KVERSION-$(uname -r)}
[[ -f /etc/machine-id ]] && read MACHINE_ID < /etc/machine-id
if [[ $MACHINE_ID ]] && ( [[ -d /boot/${MACHINE_ID} ]] || [[ -L /boot/${MACHINE_ID} ]] ); then
VMLINUZ="/boot/${MACHINE_ID}/$KVERSION/linux"
else
VMLINUZ="/boot/vmlinuz-${KVERSION}"
fi
exec sudo $BIN $ARGS -kernel $VMLINUZ "$@"
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