2020.4 fails to upgrade java 11 from 2020.3 due to loadable library issue.
This means the Java 11 run time environment currently has errors for ca certificates due to this during upgrade for 2020.4
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGILL (0x4) at pc=0xb414ffe0, pid=14550, tid=14559
#
# JRE version: OpenJDK Runtime Environment (11.0.10+9) (build 11.0.10+9-post-Debian-1)
# Java VM: OpenJDK Server VM (11.0.10+9-post-Debian-1, mixed mode, serial gc, linux-)
Could not load hsdis-arm.so; library not loadable; PrintAssembly is disabled
This could explain why BBB is not in the listed 2020.4 downloads
so my advice is use my 2020.2 BBB torrent link without upgrades as
it will at least be a valid and working install.
Lee