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4071d1ef5e
rwroot automatically adds root=/dev/vd[a-z], but the example image actually uses /dev/vda5. This leads to confusion when two root= kernel command line arguments are passed in and only one of them works. Therefore we use rwdisk instead which doesn't add the kernel argument. BUG=b:236198584 TEST=mdbook builds, examples build and run Change-Id: I9bfc05445b1e2aef197a43ee647d7c784d50dad7 Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3708365 Commit-Queue: Yuanchu Xie <yuanchu@google.com> Reviewed-by: Keiichi Watanabe <keiichiw@chromium.org> Tested-by: kokoro <noreply+kokoro@google.com>
36 lines
1.1 KiB
Bash
Executable file
36 lines
1.1 KiB
Bash
Executable file
#!/bin/bash
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# Copyright 2022 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# Example VM with a simple ubuntu guest OS but no UI, audio or networking.
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set -e
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SRC=$(realpath "$(dirname "${BASH_SOURCE[0]}")")
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mkdir -p "$SRC/images/simple" && cd "$_"
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if ! [ -f rootfs ]; then
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# ANCHOR: build
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# Build a simple ubuntu image and create a user with no password.
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virt-builder ubuntu-20.04 \
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--run-command "useradd -m -g sudo -p '' $USER ; chage -d 0 $USER" \
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-o ./rootfs
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# ANCHOR_END: build
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# ANCHOR: kernel
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virt-builder --get-kernel ./rootfs -o .
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# ANCHOR_END: kernel
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fi
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# ANCHOR: run
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# Run crosvm without sandboxing.
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# The rootfs is an image of a partitioned hard drive, so we need to tell
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# the kernel which partition to use (vda5 in case of ubuntu-20.04).
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cargo run --features=all-linux -- run \
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--disable-sandbox \
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--rwdisk ./rootfs \
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--initrd ./initrd.img-* \
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-p "root=/dev/vda5" \
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./vmlinuz-*
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# ANCHOR_END: run
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