.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.47.16.
.TH QEMU-SBUILD-CREATE "1" "December 2020" "qemu-sbuild-create 0.1" "User Commands"
.SH NAME
qemu-sbuild-create \- QEMU image creator for sbuild
.SH DESCRIPTION
usage: qemu\-sbuild\-create [\-h] [\-\-arch ARCH]
.TP
[\-\-install\-packages INSTALL_PACKAGES]
[\-\-extra\-deb EXTRA_DEB] [\-\-components COMPONENTS]
[\-\-skel SKEL] [\-\-size SIZE] [\-o OUT_FILE] [\-\-noexec]
distribution mirror
.PP
Builds images for use with qemu\-sbuild and autopkgtest.
.SS "positional arguments:"
.TP
distribution
The distribution to debootstrap.
.TP
mirror
The mirror to use for the installation. Note that the
mirror will also be used for the sources.list file in
the VM. See MIRROR below.
.SS "optional arguments:"
.TP
\fB\-h\fR, \fB\-\-help\fR
show this help message and exit
.TP
\fB\-\-arch\fR ARCH
Architecture to use. Default is the host architecture.
Currently supported architectures are: amd64, i386.
.TP
\fB\-\-install\-packages\fR INSTALL_PACKAGES
Comma\-separated list of additional packages to install
in the image using 'apt\-get install'.
.TP
\fB\-\-extra\-deb\fR EXTRA_DEB
Package file (.deb) from the local filesystem to
install. Can be specified more than once.
.TP
\fB\-\-components\fR COMPONENTS
Comma\-separated list of components to use with
sources.list entries. Default: main.
.TP
\fB\-\-skel\fR SKEL
Skeleton directory to use for \fI\,/root\/\fP.
.TP
\fB\-\-size\fR SIZE
VM size to use. Note that the images are in qcow2
format, so they won't consume that space right away.
Default: 10G.
.TP
\fB\-o\fR OUT_FILE, \fB\-\-out\-file\fR OUT_FILE
Output filename. If not supplied, then DISTautopkgtest\-ARCH.img will be used.
.TP
\fB\-\-noexec\fR
Don't actually do anything. Just print the
autopkgtest\-build\-qemu(1) command string that would be
executed, and then exit.
.PP
Note that qemu\-sbuild\-create is just a simple wrapper around autopkgtestbuild\-qemu(1) that automates a few additional steps commonly performed with
package\-building images.
.SH "MIRROR"
It is \fBhighly recommended\fR that you use an APT cache, like approx(8), or
apt\-cacher\-ng(8), on the \fBlocal\fR machine (so that the VM guest can
access it) as a mirror. This will dramatically speed up the package build
process. On the author's local machine, installing the build dependencies of
even larger packages takes only a few seconds.
.SH "SPECIAL CASES"
If the distribution is \fBexperimental\fR, \fIsources.list\fR will contain
entries for both \fBexperimental\fR and \fBunstable\fR.
.PP
If the distribution ends with \fB-backports\fR, \fIsources.list\fR will contain
entries for both the distribution and its base.
.SH "SHARING FILES"
Among other things, autopkgtest-virt-qemu(1) has built-in support for sharing a
directory on the host with the guest, so no further configuration should be
necessary when accessing the VM using autopkgtest.
.PP
However, for cases where the VM is launched via QEMU directly, a \fI/shared\fR
mount point for a 9p filesystem has been added to the VM's \fI/etc/fstab\fR. It
is configured with the \fBnofail\fR option, so it will be ignored if nothing is
being shared.
.PP
To share a directory on the host with the VM, QEMU should be started with
the following additional options:
.PP
\fB \-virtfs path=/path/to/host/dir,local,id=shared,mount_tag=shared,security_model=none
.SH EXAMPLES
\fB$ sudo qemu\-sbuild\-create unstable http://deb.debian.org/debian\fR
.PP
This will create an image \fBunstable\-autopkgtest\-amd64.img\fR (assuming
that the host architecture is amd64) with the unstable distribution.
.PP
\fB$ sudo qemu\-sbuild\-create buster\-backports http://deb.debian.org/debian\fR
.PP
This will create an image \fBbuster\-backports\-autopkgtest\-amd64.img\fR,
with \fIsources.list\fR entries for both buster and buster-backports.
.PP
\fB$ sudo qemu\-sbuild\-create \-\-skel DIR unstable http://deb.debian.org/debian\fR
.PP
The files in \fBDIR\fR will be copied into /root (that is, root's $HOME). This
can be used, for example, to copy an \fB.ssh/authorized_keys\fR file, so that
one can connect to the running image using SSH (assuming openssh\-server is
installed).
.PP
\fB$ sudo qemu\-sbuild\-create \-\-install\-packages openssh\-server unstable http://deb.debian.org/debian\fR
.PP
This would install openssh\-server. The package will be downloaded in the
target environment using 'apt-get'.
.PP
A popular package to pre\-install this way would be \fBdebhelper\fR, as it is a
build dependency of the vast majority of Debian packages.
.PP
\fB$ sudo qemu\-sbuild\-create \-\-extra\-deb FOO.deb unstable http://deb.debian.org/debian\fR
.PP
This would install the package \fBFOO.deb\fR from the local filesystem.
Useful, for example, to install additional keyring packages.
.PP
\fB$ sudo qemu\-sbuild\-create --shared-mountpoint unstable http://deb.debian.org/debian\fR
.PP
This will create an image with an fstab entry for the directory \fI/shared\fR.
.SH COPYRIGHT
Copyright \[co] 2020 Christian Kastner <ckk@kvr.at>
.SH "SEE ALSO"
.BR qemu\-sbuild (1),
.BR qemu\-sbuild\-update (1).