LineageOS

This article describes my experience building LinageOS 17.1 for the Oneplus 2 on Gentoo Linux. Based on the official build article I’ll note the steps that made me struggle.

Install the build packages

I had to emerge the following packages

dev-util/ccache app-arch/lzop media-gfx/pngcrush sys-process/schedtool sys-fs/squashfs-tools dev-util/android-tools sys-libs/ncurses-compat

Extract proprietary blobs

Extracting the proprietary blobs from the old installation didn’t work for me. Instead I used this GitHub-Repo by cloning it to ~/android/lineage/device/oneplus and checking out the branch lineage-17.1.

Start the build

Before starting the build I had to run

unset JAVAC # see https://bugs.gentoo.org/646956
ln -s /usr/lib/python-exec/python-exec2 ~/bin/python3 # because the script expects a python-exec wrapped executable in /usr/lib/python-exec