Comment 12 for bug 51315

I've have had the same problem, found the reason and solved it.

The problem is caused by the usage of the non existing group 'nvram' in /etc/udev//rules.d/40-permissions.rules:
...
KERNEL=="nvram", GROUP="nvram"
...

When udev starts, is looks up 'nvram'. While 'nvram' could not be found in /etc/group NSS tries to connect the ldap server. As result the boot sequence stops.

To fix this problem is very easy: Add the local group 'nvram' to /etc/groups

After that booting with nss_ldap and bind_policy hard works without any problem.