So why don't you use MBR as the Partition Scheme?The firmware cannot boot an O.S. from GPT. Only from MBR.
For legacy boot the firmware thinks you only run Windows ... and it gets confused.
Except the firmware it is a good PC. 8-Core and silent.
At the Partitioning menu choose Auto (UFS) Guided Disk Setup, for simplicity, and MBR for the Partition Scheme. It will give you a choice of where to install, choose your HDD which will be designated as ada0. There have been problems reported with this stage of installation and I changed from GPT to MBR to get past a sticking point.
… eating 2.5G resident memory & CPU idle time,
I get playback, but there's associated hogging of the kernel. Alain, if you find the same you might like to report a bug.
I don't have youtube issues with firefox. No memory/cpu hogging and no delays when playing. This is in virtualbox
with intel cpu and tsx, kasrl is brokenI worked around this issue by disabling aslr only
for Firefox and Thunderbird as such:
elfctl -e +aslr /usr/local/bin/firefox
My workaround is simply meant to run Firefox/Thunderbird with ASLR enabled for all other applications. It works