Comment 3 for bug 1413243

It's very common, at least in my experience, that machines have their home directories on NFS shares. And since most companies are "legacy" to us they use NFSv3 and not v4... Due to the security implications in this, all nfs home directories are exported with all kinds of squash settings to mitigate the issue ;)

So, if you do sudo -s or sudo <binary> they will immediately complain that they can't read-from/write-to or even see the home directory... Things like maas doesn't like it - heck, it's hard to find more complex tools that do...

So it should be changed to:
if user_name is None:
    return

Do you need a new patch? ;)

Anyway, yes - I know, or you could say that i have noticed, that it's not that tested beyond the normal ubuntu parameters which is why i submitted the patches =)

I have *ALMOST* completed a install with this though, it failed while "refreshing status from juju" (i was monitoring juju as well in another terminal so that might be it) but the install is up and runing (both juju and openstack)