Build Your Own System

Build a custom system offline from scratch

Getting Started

Configuring your own system requires knowing what you want.

Usage

Build a whole system with a Debian (based on debian.conf configuration) and longterm Kernel (4.4.24 based on configuration file config-4.4.24) or stable Kernel (4.7.7 based on config-4.7.7)

./byos.sh --file=config/debian.conf build [DEVICE] config/config-4.4.24 4.4.24
./byos.sh --file=config/debian.conf build [DEVICE] config/config-4.7.7 4.7.7

Update an existed whole system with new Kernel (4.3.5 based on configuration file config-4.3.5, Grsecurity based on Grsecurity configuration file config-4.3.5-grsec)

./byos.sh --file=config/debian.conf update [DEVICE] config/config-4.3.5 4.3.5
./byos.sh --file=config/debian.conf --grsec=grsecurity/grsecurity-3.1-4.3.5-201602092235.patch update [DEVICE] config/config-4.3.5-grsec 4.3.5

Build a whole system or update an existed whole system with Kernel configuration defined with menuconfig (4.3.5 with Grsecurity configuration defined with menuconfig)

./byos.sh --alt=menuconfig --file=config/debian.conf --grsec=grsecurity/grsecurity-3.1-4.3.5-201602092235.patch update [DEVICE] config/config-4.3.5 4.3.5

Managing multiple compiler version

With some kernel version (i.e. v3.16.0), there are build error when using gcc 5 (fine with 4.9.3-14).

Erasing current update-alternatives setup for gcc

sudo update-alternatives --remove-all gcc 

Install Packages

Installing compiler version packages

sudo apt-get install gcc-x.x gcc-x.x

Install Alternatives

Installing symbol links for gcc, then linking cc to gcc respectively.

sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-x.x 10
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-x.x 20

sudo update-alternatives --install /usr/bin/cc cc /usr/bin/gcc 30
sudo update-alternatives --set cc /usr/bin/gcc

Configure Alternatives

Configuring commands for gcc to switch between x.x and x.x interactively:

sudo update-alternatives --config gcc

Task lists

• Check if packages are available
• Redirect all messages (errors, outputs, etc.) into one or more files
• Check if gcc plugin is available (for GRSEC)

Your gcc installation does not support plugins.
If the necessary headers for plugin support are missing, they should be installed.
On Debian, apt-get install gcc--plugin-dev.
If you choose to ignore this error and lessen the improvements provided by this patch, re-run make with the DISABLE_PAX_PLUGINS=y argument..

Issue lists

• Issue with dpkg -i command

update-initramfs: Generating /boot/initrd.img-4.3.5 W: Possible missing firmware /lib/firmware/rtl_nic/rtl8107e-2.fw for module r8169