karl@??? writes:
> If you know any specific packages which breaks the "separate /usr" idea,
> please report.

Libraries in these

libdiscover2
libffi6
libgmp10
libgnutls-deb0-28
libgnutls-openssl27
libgssapi-krb5-2
libhogweed2
libk5crypto3
libkrb5-3
libkrb5support0
libnettle4
libp11-kit0
libstdc++6
libtasn1-6

are used by binaries in these

ping6
cgdisk
discover-modprobe
discover-pkginstall
discover
fixparts
gdisk
mount.nfs
mount.nfs4
rpcbind
rpc.statd
sgdisk
showmount
sm-notify

As you can see using e.g.

$ for a in /{,s}bin/*(.) ; do ldd $a ; done | grep /usr/

$ for a in /{,s}bin/*(.) ; do ldd $a | grep -q /usr/ && echo $a ; done

I decided not to report any bugs though. Initramfs has largely taken over
the classic role of the small file system on /.

Arnt