https://doi.org/10.59350/t7ghx-8f823 The following is compatible with Ubuntu 20.04 under Windows 10/11 WSL 2 ( Windows Subsystem for Linux). PETSc, the Portable, Extensible Toolkit for Scientific Computation is the main dependency required for building Underworld. In the following, I will describe my current workflow for configuring and installing PETSc on Linux.