If you edit /etc/fstab, and then later change something like the proc filesystem from OpenJDK, you might not boot normally. Antonio Olivares has a solution for you.
MAP_VPAGETABLE has been removed in DragonFly because of conflicts with recent pmap work. This has the unfortunate effect of breaking vkernel(7), but vkernels can be resurrected with changes to use hardware virtualization support.
Note that running DragonFly as a VM is unaffected; that’ll still work just fine. This breakage is DragonFly-vkernel-on-DragonFly specific.
So, if you find yourself in possession of an ADM-3A terminal, and want to attach it to a DragonFly machine, here is the /etc/ttys config (viewed on the ADM-3A itself of course) and the front switch settings that worked for me.
Remember, ^h deletes.
Well, it doesn’t fix anything, but it seems like an answer that almost always helps: running sysmouse usually fixes most X11 mouse problems.
If you’ve got a newer i219 ethernet chipset – it’s now supported in DragonFly.
Something I didn’t know but also never tried: ttyv0, the base terminal when booting up DragonFly, can extend to a max of 160 characters. Given that I am used to 80, that seems like overkill.
For those with a different keyboard layout – different than US English, I mean – and running xorg 1.20 or later: setxkbmap is the command you need.
DragonFly’s direct rendering has been updated to match Linux 4.12.15, which means improved support for a number of Intel processors.
If you have an Intel-based system and it has trouble reading some USB ports, or odd behavior with some virtual machines, this recent bugfix in DragonFly-current may help you. I know, my description is vague, but I haven’t encountered this directly.
Daniel Fojt has fixed something that has bothered me for years: you no longer need to manually create wlan interfaces; devd does it for you.