On 4 November 2015 at 20:14, Michael Schwendt <mschwendt@gmail.com> wrote:

What kernel packages is this with? Do they verify fine?

core, tools, tools-libs, modules, modules-extra, headers and devel, all 4.2.3-300.fc23.x86_64

They all verify correctly, i.e. give only ......T.

Does "modprobe -v btrfs" print anything, or does the command fail
silently?

Gives no output. "lsmod|grep btrfs" shows nothing.

Is this with SELinux enforcing? If so, have you tried with enforcing=0
yet? (or run "setenforce 0" as root before trying modprobe and the other
commands.

I tried with enforcing off. No difference.

poc