Here's the upgrade-everything-to-Karmic change. As promised, some fairly

src/scripts/make_chroot.sh

 #!/bin/bash
 
 # Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This script sets up an Ubuntu chroot environment. The ideas come
 # from https://wiki.ubuntu.com/DebootstrapChroot and conversations with
 # tedbo. The script is passed the path to an empty folder, which will be
 # populated with the files to form an Ubuntu Jaunty system with the packages
@@ skipping 96 matching lines @@
     exit 1
   fi
 fi
 
 # Create the destination directory
 mkdir -p "$FLAGS_chroot"
 
 # Run debootstrap to create the base chroot environment
 echo "Running debootstrap..."
 echo "You may need to enter password for sudo now..."
-sudo debootstrap --arch=i386 "$FLAGS_suite" "$FLAGS_chroot" "$FLAGS_mirror"
+sudo debootstrap --arch=i386 --exclude=rsyslog,ubuntu-minimal \
+  "$FLAGS_suite" "$FLAGS_chroot" "$FLAGS_mirror"
 echo "Done running debootstrap."
 
 # Set up necessary mounts
 sudo mount none -t proc "$FLAGS_chroot/proc"
 sudo mount none -t devpts "$FLAGS_chroot/dev/pts"
 # ...and make sure we clean them up on exit
 trap cleanup EXIT
 
 # Set up sudoers.  Inside the chroot, the user can sudo without a password.
 # (Safe enough, since the only way into the chroot is to 'sudo chroot', so
@@ skipping 78 matching lines @@
   CHROOT_EXAMPLE_OPT="--chroot=$FLAGS_chroot"
 fi
 
 echo "All set up.  To enter the chroot, run:"
 echo "    $SCRIPTS_DIR/enter_chroot.sh $CHROOT_EXAMPLE_OPT"
 echo ""
 echo "CAUTION: Do *NOT* rm -rf the chroot directory; if there are stale bind"
 echo "mounts you may end up deleting your source tree too.  To unmount and"
 echo "delete the chroot cleanly, use:"
 echo "    $0 --delete $CHROOT_EXAMPLE_OPT"