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- \__,_|\___| \_/ |___/\__,_|___/
- Overview
- ========
- Devsus is a script that builds bootable, libre Devuan (http://www.devuan.org/)
- images for the Asus C201 Chromebook, one of the few laptops able to boot and run
- without any non-free software, all the way down to the firmware level. The C201
- is supported by Libreboot (http://www.libreboot.org/).
- The images produced by Devsus contain the latest Chrome OS kernel, deblobbed
- using the Linux-libre (http://linux-libre.fsfla.org/) scripts and tuned for
- smaller size, better performance and shorter boot times.
- In addition, the images contain the latest firmware for the freedom-friendly,
- Atheros AR9271 based WiFi dongles.
- Moreover, the Devuan installation is very minimal and consists of a barebones
- Devuan base, plus crucial command-line tools, like those required to connect to
- a WiFi network.
- Dependencies
- ============
- Devsus has been tested on Devuan 7 (Jessie) on x86_64, with the following
- packages installed:
- apt install --no-install-recommends --no-install-suggests \
- parted cgpt \
- git gawk device-tree-compiler vboot-kernel-utils gcc-arm-none-eabi \
- gcc make libc-dev wget g++ cmake \
- u-boot-tools binfmt-support qemu-user-static debootstrap
- Building
- ========
- # ./devsus
- This produces two Devuan disk images:
- 1) devuan-jessie-c201-libre-16GB.img, a 16 GB image suitable for persistent
- installation; its size should be exactly the size of the internal SSD
- 2) devuan-jessie-c201-libre-2GB.img, a 2 GB image suitable for booting the
- laptop off USB
- Usage
- =====
- To produce a bootable media, write the 2 GB image to a flash drive (of at least
- 2 GB):
- # dd if=$SOMEWHERE/devuan-jessie-c201-libre-2GB.img of=/dev/$DEVICE bs=50M
- The root password is blank.
- The 2 GB image (yes, the smaller one) contains the larger, 16 GB one under /.
- This way, it is possible to boot the laptop through USB, then install Devuan
- persistently without having to download or store the large image separately.
- Persistent installation is performed using dd, too:
- # dd if=/devuan-jessie-c201-libre-16GB.img of=/dev/mmcblk0 bs=50M
- Modifications
- =============
- The images produced by Devsus are very close to stock Devuan:
- - Many redundant drivers were removed from the kernel
- - Several responsiveness or performance vs. power consumption kernel
- configuration choices have been changed
- - APT has been configured not to install "recommended" packages by default
- - Some critical (like udev) or useful (like iw) packages have been added
- - unscd has been added, to cache DNS
- - The number of virtual consoles has been reduced from 6 to 2
- Credits and Legal Information
- =============================
- Devsus' kernel building procedure is based on the linux-veyron package of Arch
- Linux ARM (http://www.archlinuxarm.org/).
- Devsus is free and unencumbered software released under the terms of the GNU
- General Public License, version 2; see COPYING for the license text. For a list
- of its authors and contributors, see AUTHORS.
- The ASCII art logo at the top was made using FIGlet (http://www.figlet.org/).
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