From d07ddbc5b98f739bebc8fd7ecdf2a6a6fe5d8375 Mon Sep 17 00:00:00 2001
From: An-Cheng Huang <ancheng@vyatta.com>
Date: Mon, 2 Nov 2009 15:46:37 -0800
Subject: use top-level pid for progress indicator

---
 scripts/install/install-functions | 14 ++++++++------
 scripts/install/install-image     | 24 ++++++++++++++++++++++--
 2 files changed, 30 insertions(+), 8 deletions(-)

diff --git a/scripts/install/install-functions b/scripts/install/install-functions
index 3bdc1fde..29707dff 100755
--- a/scripts/install/install-functions
+++ b/scripts/install/install-functions
@@ -43,18 +43,20 @@ VYATTA_CFG_DIR=${vyatta_sysconfdir}/config
 # the floppy config dir
 FD_CFG_DIR=/media/floppy/config
 
-# Process ID for progress_indicator
-SPID=$$
-
+# PROGRESS_PID can be exported by top-level script
 progress_indicator () {
+  local spid=$PROGRESS_PID
+  if [ -z "$spid" ]; then
+    spid=$$
+  fi
   case "$1" in
     start)
-      $vyatta_bindir/progress-indicator $SPID &
+      $vyatta_bindir/progress-indicator $spid &
       ;;
     *)
-      if ! rm /tmp/pi.$SPID 2>/dev/null; then
+      if ! rm /tmp/pi.$spid 2>/dev/null; then
         sleep 1
-        rm /tmp/pi.$SPID 2>/dev/null
+        rm /tmp/pi.$spid 2>/dev/null
       fi
       sleep 1
       echo -n -e "\b"
diff --git a/scripts/install/install-image b/scripts/install/install-image
index 0bf31a00..6ed0f732 100755
--- a/scripts/install/install-image
+++ b/scripts/install/install-image
@@ -5,6 +5,8 @@ source /opt/vyatta/sbin/install-functions
 
 # export INSTALL_LOG for the scripts invoked
 export INSTALL_LOG=/tmp/install-$$.log
+# export PROGRESS_PID for the scripts invoked
+export PROGRESS_PID=$$
 
 # file for get-partition output
 PART_FILE=''
@@ -114,12 +116,30 @@ fi
 trap sig_handler INT KILL
 trap exit_handler EXIT
 
+cat <<EOF
+Welcome to the Vyatta install program.  This script
+will walk you through the process of installing the
+Vyatta image to a local hard drive.
+EOF
+
+response=''
+while [ -z $response ]
+do
+  echo -n "Would you like to continue? (Yes/No) [Yes]: "
+  response=$(get_response "Yes" "Yes No Y N")
+  if [ "$response" == "no" ] || [ "$response" == "n" ]; then
+    fail_exit 'Ok then.'
+  fi
+done
+
 if is_live_cd_boot; then
   if [ -n "$NEW_ISO" ]; then
-    fail_exit 'Do not specify an image when installing from a live CD.'
+    echo 'You are trying to install from a live CD boot. The live CD image'
+    fail_exit 'will be used. Do not specify an ISO image file.'
   fi
 elif [ -z "$NEW_ISO" ]; then
-  fail_exit 'Must specify an image to install.'
+  echo 'You are trying to install from an already installed system. An ISO'
+  fail_exit 'image file to install must be specified.'
 else
   # installing on an installed system. set up the new image.
   set_up_new_iso
-- 
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