Check if reboot to latest kernel is required.

[carnet-upgrade.git] / src / functions.sh

diff --git a/src/functions.sh b/src/functions.sh
index 6f85840..970d3db 100644 (file)
--- a/src/functions.sh
+++ b/src/functions.sh
@@ -323,6 +323,38 @@ Nakon toga ponovno pozovite ovu skriptu."
   fi
 }
 
+# update sarge urls in sources list
+fix_sarge_sources () {
+  local apt_sources='/etc/apt/sources.list'
+  local fixed_sources=$(mktemp /var/lib/carnet-upgrade/sources.list.XXXXXX)
+
+  # sarge (oldstable) was archived recently -> sources.list needs update
+  awk -v archive='http://archive.debian.org/debian' \
+      -v security='http://archive.debian.org/debian-security' \
+      '$3 == "sarge" && $2 ~ /[/]debian$/ { $2 = archive }
+       $3 == "sarge/updates" && $2 ~ /security\.debian\.org$/ { $2 = security }
+       { print }' $apt_sources > $fixed_sources
+
+  # did anything get updated
+  if ! cmp $apt_sources $fixed_sources >/dev/null; then
+      log "sources.list fixed to use archive.debian.org"
+
+      # backup current version
+      if [ ! -f "$apt_sources.$backup_ext.sarge" ]; then
+          cp -av $apt_sources "$apt_sources.$backup_ext.sarge"
+      fi
+
+      # install fixed version
+      cp -av $fixed_sources $apt_sources
+
+      # update the database
+      apt_update
+  fi
+
+  # delete temporary
+  rm -f $fixed_sources
+}
+
 # try to check if we are using the latest version of carnet-upgrade script
 check_my_version () {
   local packages latest_version
@@ -373,7 +405,7 @@ check_grsec_kernel () {
     return 0
   fi
 
-  if [ "$ver" = "${ver#2.6.2[4-9]}" ]; then
+  if [ "$ver" = "${ver#2.6.2[4-9]}" ] || reboot_required; then
     # kernel too old
     notice "
 Prije prelaska na Debian Etch potrebno je napraviti nadogradnju na najnoviji grsec kernel.
@@ -389,6 +421,53 @@ Nakon toga ponovno pozovite ovu skriptu."
   fi
 }
 
+# check if the latest kernel is booted
+reboot_required () {
+  local default_kernel kernel_package running_release running_version
+
+  default_kernel=$( lilo -t -v 2>/dev/null \
+                    | grep -B3 '[*]$' \
+                    | sed -n -e '/^Boot image: / { s///p; q; }' )
+
+  if [ -z "$default_kernel" ]; then
+      log "Could not find default kernel"
+      return 1
+  fi
+
+  log "Default kernel image: $default_kernel"
+
+  if [ ! -e "$default_kernel" ]; then
+      log "Default kernel image doesn't exist!?"
+      return 1
+  fi
+
+  kernel_package=$( dpkg -S $default_kernel | cut -d: -f 1 )
+
+  if [ -z "$kernel_package" ]; then
+      log "Default kernel not installed from a package"
+      return 1
+  fi
+
+  log "Default kernel package: $kernel_package"
+
+  if [ "$kernel_package" != "kernel-2.6-cn" ]; then
+      log "Default kernel package is not kernel-2.6-cn"
+      return 1
+  fi
+
+  running_release=$( uname -r )
+  running_version=$( uname -v )
+  log "Running kernel: $running_release $running_version"
+
+  if grep -q "$running_release .* $running_version" $default_kernel; then
+      log "Latest kernel version is running." 
+      return 1
+  else
+      log "Reboot to latest version required."
+      return 0
+  fi
+}
+
 upgrade () {
   local i to_install packages
   case "$1" in