postinst: don't abort after marking new part bootable.

chromeos-setimage

 #!/bin/sh -u
 # Copyright (c) 2010 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.
 #
 # A script to display or change the preferred image
 
 # Load functions and constants for chromeos-install.
 . "$(dirname "$0")/chromeos-common.sh" || exit 1
 if [ -e /usr/lib/shflags ]; then
@@ skipping 17 matching lines @@
 if [ -e ${DEV_BUILD_FILE} ]; then
   echo "Developer image detected."
   rootfs_verification_default=${FLAGS_FALSE}
   ignore_bad_verification_default=${FLAGS_TRUE}
 fi
 
 # Any build that is verified will stay verified.
 # We need to check that there is a root device,
 # factory install runs from tmpfs and rootdev does not
 # return a meaningful result in that case.
-if rootdev -s &> /dev/null; then
-  if type rootdev &> /dev/null; then
+if rootdev -s 2>&1 > /dev/null; then
+  if type rootdev 2>&1 > /dev/null; then

[Will Drewry, 2010/09/23 01:57:36]

change is fine, but I dunno why we do type rootdev after calling rootdev.  The
only reason the type rootdev was in there is because chromeos-setimage used to
be called in the chroot for image_to_vm, and there was no rootdev command. (The
line is pointless now :)

     # Enable verification, but don't force a check for dev builds.
     if rootdev | grep -qE '^/dev/(dm-|mapper/)'; then
       rootfs_verification_default=${FLAGS_TRUE}
       ignore_bad_verification_default=${FLAGS_FALSE}
     fi
   fi
 fi
 
 DEFINE_string dst "" "Boot device to update (Default: current root device)"
 # Any time the verified boot flags change, this is needed
@@ skipping 282 matching lines @@
 grep -qs '^set default=3' ${mountpoint}/efi/boot/grub.cfg && echo "B (verified)"
 
 echo "Current legacy boot default is:"
 # Print the [new] default choice
 grep -qs 's-hd\.A$' ${mountpoint}/syslinux/default.cfg && echo "A"
 grep -qs 's-hd\.B$' ${mountpoint}/syslinux/default.cfg && echo "B"
 grep -qs 'vhd\.A$' ${mountpoint}/syslinux/default.cfg && echo "A (verified)"
 grep -qs 'vhd\.B$' ${mountpoint}/syslinux/default.cfg && echo "B (verified)"
 
 exit 0