The long story of #191038 finally concluded that the only need is for
login man page to mention that /etc/nologin can be a symbolic link for
people who want to try keeping a read-only /etc
Tomasz, please find attahced a patch for upstream CVS's login man page
XML source. I just added a mention about this file OK for being a
symlink.
--
--- login.1.xml.ori 2005-05-24 19:06:01.000000000 +0200
+++ login.1.xml 2005-05-26 04:09:33.695634315 +0200
@@ -172,6 +172,12 @@
<filename>/etc/nologin</filename> - prevent non-root
users from
logging in
<!-- .br -->
+ (can be a symbolic link to
another
+ <!-- .br -->
+ file for users wanting to
use a
+ <!-- .br -->
+ read-only root filesystem)
+ <!-- .br -->
<filename>/etc/ttytype</filename> - list of terminal types
<!-- .br -->
<emphasis remap='I'>$HOME/.hushlogin</emphasis> - suppress printing
