Hi, I spent yesterday trying to get various darwin components build, using what I thought was darwinbuild 0.7.2. It turned out that I had in fact installed an older version to /usr/local/darwinbuild and modified my path to point to that one, while the new one was installed in /usr/local. Argh - that sort of thing makes me feel pretty dumb. If darwinbuild had a "-version" option I might have caught my mistake sooner - feature request? Anyway, I've now straightened myself out but am rather quickly hitting a wall. I run "darwinbuild -init 7W98", then "darwinbuild xnu", which produces the log file attached. I tried doing "mount -t devfs devfs BuildRoot/dev/" before running darwinbuild, with almost the same effect (it reports "devfs appears to exist"). I added a couple of lines to darwinbuild to do an "ls -l /dev/null" at the start of the build script, with this result: Checking /dev/null: crw-rw-rw- 1 root wheel 3, 2 9 Jan 09:22 /dev/null so it looks to me like /dev/null exists in the chrooted environment. What's going on? Any suggestions of what I should do? Thanks, dustin.