build_image: enable new cros specific error handling in dm-verity

build_image

 #!/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.
 
 # Script to build a bootable keyfob-based chromeos system image from within
 # a chromiumos setup. This assumes that all needed packages have been built into
 # the given target's root with binary packages turned on. This script will
 # build the Chrome OS image using only pre-built binary packages.
@@ skipping 53 matching lines @@
 DEFINE_boolean fast ${DEFAULT_FAST} \
   "Call many emerges in parallel"
 DEFINE_string boot_args "noinitrd" \
   "Additional boot arguments to pass to the commandline"
 
 DEFINE_string usb_disk /dev/sdb3 \
   "Path syslinux should use to do a usb boot. Default: /dev/sdb3"
 
 DEFINE_boolean enable_rootfs_verification ${FLAGS_TRUE} \
   "Default all bootloaders to use kernel-based root fs integrity checking."
-DEFINE_integer verity_error_behavior 1 \
-  "Kernel verified boot error behavior (0: I/O errors, 1: panic, 2: nothing) \
-Default: 1"
+DEFINE_integer verity_error_behavior 3 \
+  "Kernel verified boot error behavior (0: I/O errors, 1: panic, 2: nothing, \
+3: cros) Default: 3"
 DEFINE_integer verity_depth 1 \
   "Kernel verified boot hash tree depth. Default: 1"
 DEFINE_integer verity_max_ios -1 \
   "Number of outstanding I/O operations dm-verity caps at. Default: -1"
 DEFINE_string verity_algorithm "sha1" \
   "Cryptographic hash algorithm used for kernel vboot. Default : sha1"
 
 DEFINE_string oem_customization "" \
   "Path to directory containing OEM partner partition contents"
 
@@ skipping 705 matching lines @@
   echo "Developer image created as ${DEVELOPER_IMAGE_NAME}"
 fi
 
 print_time_elapsed
 
 echo "To copy to USB keyfob, do something like:"
 echo "  ./image_to_usb.sh --from=${OUTSIDE_OUTPUT_DIR} --to=/dev/sdX"
 echo "To convert to VMWare image, INSIDE the chroot, do something like:"
 echo "  ./image_to_vm.sh --from=${OUTSIDE_OUTPUT_DIR} --board=${BOARD}"
 echo "from the scripts directory where you entered the chroot."