On Sun, Apr 26, 2020 at 08:04:44PM +0200, Vincent DEFERT wrote: > In case anyone else would want to do the same, I've finally > found out that in order to boot from an USB disk, the > loading of modules must be enabled, i.e.: > > installboot -o modules /dev/rsd0a /usr/mdec/bootxx_ffsv2
I don't understand why that would be needed or help (but I also don't understand what that option does, the documentation is... lacking). You now have a working setup? Can you boot single user and show output from modstat(8)? Martin