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 # Auto-install OpenBSD on QEMU
 
 See [blog post](https://www.skreutz.com/posts/autoinstall-openbsd-on-qemu/).
+
+## Errata
+
+Starting with OpenBSD 7.0, autoinstall(8) no longer respects the TFTP server
+name option. Instead, it uses the next-server DHCP option. Thus, the installer
+tries to fetch the response file from the QEMU host at
+http://10.0.2.2/install.conf.
+
+To fix that, you can serve the mirror on port 80 instead of 8080 as follows:
+
+    $ python3 -m http.server --directory mirror --bind 127.0.0.1 8080
+    $ sudo socat tcp-listen:80,reuseaddr,fork tcp:localhost:8080
+
+Of course, binding to port 80 requires root privileges. I think it should be
+possible to avoid that using a corresponding guest forwarding from
+tcp:10.0.2.2:80 to tcp:10.0.2.2:8080 but I failed to make that work.