As someone who's used OpenBSD daily as a primary desktop OS, usermount will force me to use doas(1) (the replacement for sudo) to mount external media on my desktops/laptops. No big deal. Honestly, I usually do that anyway, just force of habit. Checking my systems, I only set kern.usermount on my daily-driver laptop, and none of my other OpenBSD boxes.

None of the other changes impact anything I do on a daily basis. I haven't used Linux emulation since 2006 or so, and even then, it was a gigantic pain in the ass. The devs have a native virtual machine hypervisor in the works that I was hoping would be ready for prime-time in OpenBSD 6.0. I doubt it'll be ready that soon. This will provide a better option than the old Linux emulation layer.

Would toad be of any use?

http://ports.su/sysutils/toad

Hotplugd is crazysauce. So much you can do with it. Toad claims to need kern.usermount so it won't work with a default install, and will be toadally broken once this option is removed in OpenBSD 6.0. I can't speak for all OpenBSD users, but I just end up putting my sd-card reader (which sees most FAT formatted cards at sd1i) and the first available USB external drive (again, usually sd2i for FAT) in my /etc/fstab and call the mount with doas.

doas mount /sdcard

Not that big of a deal.

Thanks for reply.

'toadally broken' indeed, I'm hoping that Antoine Jacoutot will come up with a clever work around. That or xfce4-mount-plugin I suppose with doas and a limited permission to run mount without a password.

Use toad + rox :p

Basically if a usermode process is compromised on OpenBSD 6.0, there will be less system call surface area for attackers to hit. This leaves the vast majority of OpenBSD users more secure.