sysfiles: changed /etc/profile to use $UID -eq 0 instead of -w / to support read-only roots

base/sysfiles/overlay.d/etc_profile.txt

@@ -1,7 +1,7 @@
 # --- SDE-COPYRIGHT-NOTE-BEGIN ---
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
-# Filename: package/.../sysfiles/etc_profile.txt
+# Filename: package/.../sysfiles/overlay.d/etc_profile.txt
 # Copyright (C) 2006 - 2009 The OpenSDE Project
 # Copyright (C) 1998 - 2003 Clifford Wolf
 #
@@ -36,9 +36,15 @@ export PATH
 #
 if [ "$PS1" ] ; then
 	PS1='$ ' ; PS2='> ' ; PS4='+ '
-	[ "$BASH_VERSION" ] && PS1='\u@\h:\w\$ '
-	[ "$KSH_VERSION" -a   -w / ] && PS1='$USER:$PWD# '
-	[ "$KSH_VERSION" -a ! -w / ] && PS1='$USER:$PWD$ '
+	if [ -n "$BASH_VERSION" ]; then
+		PS1='\u@\h:\w\$ '
+	elif [ -n "$KSH_VERSION" ]; then
+		if [ $UID -eq 0 ]; then
+			PS1='$USER:$PWD# '
+		else
+			PS1='$USER:$PWD$ '
+		fi
+	fi
 fi
 
 # set some enviroment-variables
@@ -69,8 +75,11 @@ if [ "$PS1" ] ; then
 	alias ...='cd ../..'
 
 	eval `dircolors -b /etc/dircolors`
-	[ -w / ] && alias ls="ls --color=auto -a" ||
-	            alias ls="ls --color=auto"
+	if [ $UID -eq 0 ]; then
+		alias ls="ls --color=auto -a"
+	else
+		alias ls="ls --color=auto"
+	fi
 	alias l="ll -a" ; alias ll="ls -l"
 
 	alias which="type -p"
@@ -83,4 +92,3 @@ for x in /etc/profile.d/* /etc/conf/profile ; do
 	[ -f $x ] && . $x
 done
 unset x
-