So today all my attempts to compose F19 live images were failing with the cryptic error:

"Error creating Live CD : Dependency check failed!"

Which doesn't help you fix the problem, much. So I poked about, in my inexpert monkey way, in yuminst.py , and found the code that raises that error is this:

        deps = self.ts.check()
        if len(deps) != 0:
            raise CreatorError("Dependency check failed!")

So being an idiotic monkey who codes by invoking Google, I invoked Google on ts.check, and came across:

http://lists.baseurl.org/pipermail/yum-devel/2011-February/007861.html

which seemed instructive. After a bit of trial and error, I came up with this work of sheer engineering brilliance:

        deps = self.ts.check()
        if len(deps) != 0:
            for msg in deps:
                print(msg)
            raise CreatorError("Dependency check failed!")

and was rewarded with the following perfectly clear error message:

(('espeak', '1.47.03', '1.fc19'), ('/bin/sh', ''), 0, 0, None)

So...that's something to do with espeak-1.47.03-1.fc19 and /bin/sh, then.

Indeed, espeak-1.47.03-1 introduces a dependency on /bin/sh that the previous build did not have (thanks, autoqa!):

http://autoqa.fedoraproject.org/results/541549-autotest/virt06.qa/rpmguard/results/espeak-1.47.03-1.fc2.html

but I can't quite see how that torpedoes live CD creation. Lots of other packages depend on /bin/sh - a simple 'rpm -q --whatrequires /bin/sh' shows that.

Still, clearly it does, somehow or other. I took espeak-1.47.03-1.fc19 out of the side repo I had it in, and boom, my live composes go through again. But as soon as 1.47.03-1 lands in the repos, presumably, we're going to be in trouble.

CCing bcl and the yum maintainers - can anyone figure out this mess? I don't _think_ I'm doing anything silly, but it's always possible, of course.