Ceph

Bug #5492 dealth with scripts installing into locations like /usr/usr/sbin when PREFIX=/usr. That bug was marked Resolved due to commit a120d81df6a131cf4d9cabd07593e8fff8c46b96. However, the original complaint was not actually fixed, at least not in Ubuntu 12.04 or FreeBSD 9.1.

I think that the real problem is in debian/rules. --sbindir=/sbin directs ceph-disk and friends to be installed in /sbin instead of $PREFIX/sbin. That's done so that mkcephfs and mount.ceph will be under /sbin instead of /usr/sbin. It seems that the problem is that autotools doesn't offer a clean way to put some programs in /sbin and others in /usr/sbin. With the attached patch, people can build ceph directly from sources and get the expected file layout. The debian build should also work, though I haven't tried it yet. FreeBSD users can get their expected file layout by adding an extra variable at the "make install" stage:
MAKE_FLAGS+= su_sbindir=${PREFIX}/sbin

The commit that added --sbindir
https://github.com/ceph/ceph/commit/38f96c658dee3e7e26a68a3c57eec2a5d8758e17

configure-stamp:
dh_testdir
./autogen.sh
./configure --prefix=/usr --sbindir=/sbin --localstatedir=/var \
--sysconfdir=/etc $(extraopts) $(confflags) \
$(CEPH_EXTRA_CONFIGURE_ARGS)
touch $@