* izmjena imena iz kernel-2.6-cn u genericki kernel-cn

[kernel-cn.git] / debian / preinst

diff --git a/debian/preinst b/debian/preinst
index 01a7582..6c5b763 100755 (executable)
--- a/debian/preinst
+++ b/debian/preinst
@@ -1,5 +1,5 @@
 #!/bin/sh
-# preinst script for kernel-2.6-cn
+# preinst script for kernel-cn
 #
 # see: dh_installdeb(1)
 
@@ -19,6 +19,11 @@ case "$1" in
     ;;
 
     abort-upgrade)
+        # check if we have Layer7 active...
+        if iptables-save | grep -qs '^-A.* -m layer7 '; then
+            echo 'CN: Layer7 Netfilter no longer supported, report this to SysHelp!'
+            exit 1
+        fi
     ;;
 
     *)
@@ -27,6 +32,12 @@ case "$1" in
     ;;
 esac
 
+# check if the config script fixed the grub diverts
+if [ -e /usr/sbin/grub.real -o -e /usr/sbin/grub-probe.real ]; then
+    echo "CN: Please install Grub2 package using: apt-get install grub-pc"
+    exit 1
+fi
+
 # make GRUB template directory
 if [ ! -d /boot/grub ]; then
     echo "CN: Made /boot/grub directory."
@@ -35,23 +46,15 @@ fi
 
 ################################################################################
 
-DIVERT_TO="grub grub-probe"
+SHIELD=$(sysctl -e -n kernel.exec-shield)
 
-echo -n "CN: Diverting binaries:"
-for i in $DIVERT_TO; do
-    dpkg-divert --add --rename --package 'kernel-2.6-cn' \
-        --divert /usr/sbin/$i.real /usr/sbin/$i >/dev/null
-    echo -n " $i"
-done
-echo "."
+if [ ! -z "$SHIELD" ]; then
+    sysctl -e -w kernel.exec-shield=0 >/dev/null 2>&1 || true
+    echo "CN: Disabled Exec-Shield."
+fi
 
 ################################################################################
 
-if iptables-save | grep -qs '^-A.* -m layer7 '; then
-    echo 'CN: Layer7 Netfilter no longer supported, report this to SysHelp!'
-    exit 1
-fi
-
 # dh_installdeb will replace this with shell code automatically
 # generated by other debhelper scripts.