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.\" Copyright (c) 2021 Stefan Kreutz <mail@skreutz.com>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.Dd $Mdocdate: July 24 2021 $
.Dt INSTALLISO 8
.Os
.Sh NAME
.Nm installiso
.Nd Customize OpenBSD installation images
.Sh SYNOPSIS
.Nm installiso
.Op Fl v
.Ar command
.Op Ar arg ...
.Sh DESCRIPTION
The
.Nm
utility facilitates creating custom ISO 9660 installation images for the
unattended installation of
.Ox .
.Pp
The common options are as follows:
.Bl -tag -width Ds
.It Fl v
Verbose mode.
Causes
.Nm
to print informative messages.
Multiple
.Fl v
options increase the verbosity.
The maximum is 2.
By default,
.Nm
is quiet.
.El
.Pp
The commands are as follows:
.Bl -tag -width Ds
.It Cm fetch Oo Fl f Oc Oo Fl m Ar mirror Oc Oo Fl r Ar release Oc Oo Fl p Ar key Oc Oo Fl o Ar output Oc
Download and verify an official ISO 9660 installation image.
.Bl -tag -width 15n
.It Fl f
Force overwriting existing files.
By default,
.Cm fetch
will not overwrite existing files.
.It Fl m Ar mirror
The HTTP(S)
.Ox
.Ar mirror
to use.
Defaults to the mirror specified by
.Xr installurl 5
or else
.Lk https://cdn.openbsd.org/pub/OpenBSD/ .
.It Fl r Ar release
The
.Ox
.Ar release .
Defaults to the latest development snapshot of -current.
.It Fl p Ar key
The public
.Xr signify 1
.Ar key
used to verify the downloaded installation image.
Defaults to the key
.Pa /etc/signify/openbsd-*-base.pub
corresponding to the downloaded release.
.El
.It Cm patch Oo Fl f Oc Oo Fl i Ar install_conf Oc Oo Fl u Ar upgrade_conf Oc Oo Fl s Ar site_dir Oc Ar input Ar output
Patch an ISO 9660 installation image.
.Bl -tag -width 15n
.It Fl f
Force overwriting existing files.
By default,
.Cm patch
will not overwrite existing files.
.It Fl i Ar install_conf
Insert an
.Xr autoinstall 8
response file for unattended installation.
.It Fl u Ar upgrade_conf
Insert an
.Xr autoinstall 8
response file for unattended upgrade.
.It Fl s Ar site
Package and insert the directory
.Ar site
as a site-specific file set.
.It Ar input
The
.Ar input
installation image file.
.It Ar output
The
.Ar output
installation image file.
.El
.El
.Sh EXIT STATUS
.Ex -std installiso
.Sh EXAMPLES
Fetch the latest development snapshot:
.Bd -literal -offset indent
$ installiso -v fetch
.Ed
.Pp
Fetch a specific release:
.Bd -literal -offset indent
$ installiso -v fetch -r 6.9
.Ed
.Pp
Create a custom image for unattended installation:
.Bd -literal -offset indent
$ doas installiso -v patch -i install.conf install69.iso custom.iso
.Ed
.Sh SEE ALSO
.Xr autoinstall 8 ,
.Xr mkhybrid 8 ,
.Xr rdsetroot 8 ,
.Xr sysupgrade 8 ,
.Xr vnconfig 8
.Sh AUTHORS
.An Stefan Kreutz Aq Mt mail@skreutz.com
.Sh BUGS
The
.Nm
utility is currently limited to the amd64 architecture because it wasn't tested
on any other architecture.
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