archiso/README.rst
David Runge d90184a7f0
Pass profile directory as parameter to mkarchiso
**archiso/mkarchiso**:

Change all override option parameters (i.e. `-A`, `-C`, `-D`, `-L`, `-P` and `-g`) to not directly override the global
variable they are tied to, but instead using an `override_` prefixed variable.

Add `_set_overrides()` to use `override_` prefixed variables (if set) to override those without a prefix.

Remove `-B` (a profile directory) from the list of parameters. The profile directory is now provided as separate
non-option parameter.

Add a call to `_read_profile()`, `_set_overrides()` and `command_build_profile()` to the fallthrough option of the
switch-case checking `command_name` - a non-option parameter to mkarchiso. This effectively provides the possibility to
set the profile directory using a non-option parameter, while still maintaining compatibility to legacy named arguments
used in the configs' `build.sh` scripts.

Extend the warning in regards to legacy `build.sh` based commands to mkarchiso by providing an EOL with archiso v49.

Change the help output to reflect the changes and further elaborate on the legacy commands used by `build.sh` scripts.

Change help output to be ordered alphabetically.

Add help output for `-r` and `-g` options.

Call `_set_overrides()` for legacy commands that accept one or more of the overriden options (i.e. `command_init`,
`command_install`, `command_prepare` and `command_iso`).

Various style fixes.

**configs/{baseline,releng}/build.sh**:

Change call to mkarchiso to use the profile's directory as a named argument instead of an option-argument.

**README.rst**:

Fix documentation on how to call mkarchiso with a profile directory.

Fix wording and ordering of option arguments for run_archiso documentation.

Fixes #52
2020-08-25 19:06:43 +02:00

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=======
archiso
=======
The archiso project features scripts and configuration templates to build installation media (*.iso* images) for BIOS
and UEFI based systems on the x86_64 architecture.
Currently creating the images is only supported on Arch Linux.
Requirements
============
The following packages need to be installed to be able to create an image with the included scripts:
* arch-install-scripts
* dosfstools
* e2fsprogs
* libisoburn
* squashfs-tools
For running the images in a virtualized test environment the following packages are required:
* edk2-ovmf
* qemu
For linting the shell scripts the following package is required:
* shellcheck
Profiles
========
Archiso comes with two profiles: **baseline** and **releng**. While both can serve as starting points for creating
custom live media, **releng** is used to create the monthly installation medium.
They can be found below `configs/baseline/ <configs/baseline/>`_ and `configs/releng/ <configs/releng/>`_
(respectively). Both profiles are defined by files to be placed into overlays (e.g. *airootfs* -> *the image's /*).
Create images
=============
Usually the archiso tools are installed as a package. However, it is also possible to clone this repository and create
images without installing archiso system-wide.
As filesystems are created and various mount actions have to be done when creating an image, **root** is required to run
the scripts.
When archiso is installed system-wide and the modification of a profile is desired, it is necessary to copy it to a
writeable location, as */usr/share/archiso* is tracked by the package manager and only writeable by root (changes will
be lost on update).
The examples below will assume an unmodified profile in a system location (unless noted otherwise).
It is advised to consult the help output of **mkarchiso**:
.. code:: bash
mkarchiso -h
Create images with packaged archiso
-----------------------------------
.. code:: bash
mkarchiso -w path/to/work_dir -o path/to/out_dir path/to/profile
Create images with local clone
------------------------------
Clone this repository and run:
.. code:: bash
./archiso/mkarchiso -w path/to/work_dir -o path/to/out_dir path/to/profile
Testing
=======
The convenience script **run_archiso** is provided to boot into the medium using qemu.
It is advised to consult its help output:
.. code:: bash
run_archiso -h
Run the following to boot the iso using BIOS:
.. code:: bash
run_archiso -i path/to/an/arch.iso
Run the following to boot the iso using UEFI:
.. code:: bash
run_archiso -u -i path/to/an/arch.iso
The script can of course also be executed from this repository:
.. code:: bash
./scripts/run_archiso.sh -i path/to/an/arch.iso
Installation
============
To install archiso system-wide use the included **Makefile**:
.. code:: bash
make install
Optionally install archiso's mkinitcpio hooks:
.. code:: bash
make install-initcpio
License
=======
Archiso is licensed under the terms of the **GPL-3.0-or-later** (see `LICENSE <LICENSE>`_).