OSx Big Sur VirtualBox YunoHost image load error+solution

[floriandierickx]

I bumped into an issue of VirtualBox crashing on OSx Big Sur while trying to load the YunoHost startup image (as described in this thread: https://download.virtualbox.org/virtualbox/6.1.16/VirtualBox-6.1.16-140961-OSX.dmg). Downloading and installing VirtualBox 6.1.16 from https://www.virtualbox.org/wiki/Download_Old_Builds_6_1 resolved the issue.