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1#!/bin/bash
2# Copyright 2022 The Chromium OS Authors. All rights reserved.
3# Use of this source code is governed by a BSD-style license that can be
4# found in the LICENSE file.
5
6# Example VM with a simple ubuntu guest OS but no UI, audio or networking.
7
8set -e
9
10SRC=$(realpath "$(dirname "${BASH_SOURCE[0]}")")
11mkdir -p "$SRC/images/simple" && cd "$_"
12
13if ! [ -f rootfs ]; then
14    # ANCHOR: build
15    # Build a simple ubuntu image and create a user with no password.
16    virt-builder ubuntu-20.04 \
17        --run-command "useradd -m -g sudo -p '' $USER ; chage -d 0 $USER" \
18        -o ./rootfs
19    # ANCHOR_END: build
20
21    # ANCHOR: kernel
22    virt-builder --get-kernel ./rootfs -o .
23    # ANCHOR_END: kernel
24fi
25
26# ANCHOR: run
27# Run crosvm without sandboxing.
28# The rootfs is an image of a partitioned hard drive, so we need to tell
29# the kernel which partition to use (vda5 in case of ubuntu-20.04).
30cargo run --features=all-linux -- run \
31    --disable-sandbox \
32    --rwroot ./rootfs \
33    --initrd ./initrd.img-* \
34    -p "root=/dev/vda5" \
35    ./vmlinuz-*
36# ANCHOR_END: run
37