[perhaps this is a pam-issue...]

/sbin/pam_console_apply is linked against glib:

--------------------
$ ldd /sbin/pam_console_apply 
        libglib-1.2.so.0 => /usr/lib/libglib-1.2.so.0 (0x40027000)
        libc.so.6 => /lib/i686/libc.so.6 (0x4004c000)
        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)
---------------------

Because /usr is NFS-mounted at my system, /usr/lib/libglib is not available
in early init-stages. But /sbin/pam_console_appy is called by
/etc/rc.d/rc.sysinit before the netfs-scripts.

So I get at boot an error-messages saying that the libglib library is
missing.