shadow: get rid of /bin and /sbin from $PATHxry111/usr-move

This will be the default system-wide setting of LFS.  However, it will
be free to reset $PATH in .bashrc, so we can't assume everyone will use
this.  We still need to find and fix breakages caused by hardcoded
paths to /bin/some_executable in BLFS packages.

1 files changed, 14 insertions, 1 deletions

diff --git a/chapter08/shadow.xml b/chapter08/shadow.xml
index 354fcbdff..3471b347b 100644
--- a/chapter08/shadow.xml
+++ b/chapter08/shadow.xml
@@ -65,10 +65,23 @@ find man -name Makefile.in -exec sed -i 's/passwd\.5 / /'   {} \;</userinput></s
     allows passwords longer than 8 characters. It is also necessary to change
     the obsolete <filename class="directory">/var/spool/mail</filename> location
     for user mailboxes that Shadow uses by default to the <filename
-    class="directory">/var/mail</filename> location used currently:</para>
+    class="directory">/var/mail</filename> location used currently. And,
+    get rid of <filename class="directory">/bin</filename> and
+    <filename class="directory">/sbin</filename> from <envar>PATH</envar>,
+    since they are simply symlinks to their counterpart in
+    <filename class="directory">/usr</filename>.</para>
+
+    <note>
+      <para>If <filename class="directory">/bin</filename> and/or
+      <filename class="directory">/sbin</filename> are prefereed to be
+      left over in <envar>PATH</envar> for some reason, modify
+      <envar>PATH</envar> in <filename>.bashrc</filename> after LFS is
+      built.</para>
+    </note>
 
 <screen><userinput remap="pre">sed -e 's:#ENCRYPT_METHOD DES:ENCRYPT_METHOD SHA512:' \
     -e 's:/var/spool/mail:/var/mail:'                 \
+    -e '/PATH=/{s@/sbin:@@;s@/bin:@@}'                \
     -i etc/login.defs</userinput></screen>
 
     <note>