I have some things left to say about installing XBMC on the original Xbox, in part because they are not done yet.
Today I finally made the Xbox boot directly into XBMC and not to EvoX. Searching the web for instructions on how to do this may give some different answers, but the one that I decided to try and that worked perfectly came (unsurprisingly) from xbmc.org: Using the Team XBMC Shortcut.xbe.
The file names used as examples were the same as for my installation: I replaced C:evoxdash.xbe and created C:evoxdash.cfg containing E:AppsXBMCdefault.xbe. I actually made sure that the .cfg file had CRLF line ending even though I created it in Ubuntu, but it probably doesn’t matter.
I changed the XBMC network settings to use DHCP instead of “system settings” to make sure that XBMC would still get an IP address on the network after rebooting.
The reboot went smooth and took me straight into XBMC. Isn’t it nice when things just work?