Comment 14 for bug 1726367

@Tim,
Well that's unfortunate you had troubles with UEFI. After we can confirm this issue is fixed for you with the proposed fix, I think you should try to re-install with in UEFI mode again. UEFI mode is preferable as BIOS updates will only be distributed and installed when in UEFI mode.
What problem did you run into?

My fix is merged into both master and 0_9_X branches.

As for testing the fix, easiest way is with docker.
1. Set up a docker environment.
2. Clone upstream tree
# git clone https://github.com/hughsie/fwupd
3) Swap to 0_9_X branch.
# git checkout 0_9_X
4) Follow directions here for deb to compile into debs:
https://github.com/hughsie/fwupd/tree/master/contrib
5) Install all but the fwupd-tests deb package.
6) Try to start fwupd process.

Alternatively if you want to install all the build depends for fwupd you can do that too rather than docker to build.
# apt build-dep fwupd
# ./contrib/ci/build_and_install_debs.sh