This reverts commit 8f493a6377.
When I was building LFS, I somehow forgot to mount /dev/sdb7 to
/mnt/lfs on my system. I ended up chrooting into /mnt/lfs, and it was a
directory, not a filesystem.
This happens from time to time, not sure why I did it this time!
The tests that I had marked as failed no longer fail, but at the same
time, now test-namespace does. Let's undo this commit...
