qemu-sanity-check man page
qemu-sanity-check — run a simple sanity check on qemu and the Linux kernel
qemu-sanity-check is a short shell script that test-boots a Linux kernel under qemu, making sure it boots up to userspace. The idea is to test the Linux kernel and/or qemu to make sure they are working.
You can use the command on its own:
In this case, the script will look for a suitable qemu binary on the
$PATH and the latest Linux kernel in
"/boot" and try to boot that kernel on that qemu.
You can also specify a qemu binary or a Linux kernel (either or both options can be omitted):
qemu-sanity-check --qemu=/path/to/qemu --kernel=/path/to/vmlinuz
"qemu-kvm") can be used in place of qemu.
No kernel modules or special drivers are required except as noted below. The test uses an initramfs containing a static binary, so the kernel is not required to locate block devices, use virtio, mount filesystems, etc.
The kernel must support only the following, compiled in (not as modules):
- A serial port (usually:
- Initrd/initramfs (
Display short help message and exit.
This sets the
"-machine accel=..."parameter which is passed to qemu.
If not set, then
"kvm:tcg"is the default, which means to try to use Kvm (hardware-assisted virtualization), and fall back to software emulation if Kvm is not possible.
Other typical values of this parameter are:
"tcg", which means to force software emulation.
"kvm", which means to force Kvm and fail if Kvm is unavailable.
- -i INITRD
Use the initramfs image named
"INITRD"instead of the default.
- -k VMLINUZ
Use the kernel image
"VMLINUZ"instead of searching for the latest kernel installed in
- -q QEMU
Use the qemu (or Kvm) binary
"QEMU"instead of searching
$PATHfor a suitable binary.
- -t TIMEOUT
Specify a timeout instead of the default which is
The syntax for the
"TIMEOUT"is described in full in the man page for timeout(1).
Display version and exit.
The exit status is 0 if the Linux kernel booted as far as userspace under qemu; or if the --help or --version options were used.
The exit status is 1 if the kernel boot failed under qemu.
The exit status is 2 if the script itself failed (eg. incorrect command line options were used, a suitable kernel could not be found).
The default location for the small initramfs image that is used to test that userspace has been reached.
Richard W.M. Jones <email@example.com>
(C) Copyright 2013 Red Hat Inc.
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.