diff options
Diffstat (limited to 'google-startup-scripts/usr/share/google/safe_format_and_mount')
| -rwxr-xr-x | google-startup-scripts/usr/share/google/safe_format_and_mount | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/google-startup-scripts/usr/share/google/safe_format_and_mount b/google-startup-scripts/usr/share/google/safe_format_and_mount deleted file mode 100755 index 8e68037..0000000 --- a/google-startup-scripts/usr/share/google/safe_format_and_mount +++ /dev/null @@ -1,152 +0,0 @@ -#! /bin/bash -# Copyright 2013 Google Inc. All Rights Reserved. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# http://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -# Mount a disk, formatting it if necessary. If the disk looks like it may -# have been formatted before, we will not format it. -# -# This script uses blkid and file to search for magic "formatted" bytes -# at the beginning of the disk. Furthermore, it attempts to use fsck to -# repair the filesystem before formatting it. - -FSCK=fsck.ext4 -MOUNT_OPTIONS="discard,defaults" -MKFS="mkfs.ext4 -E lazy_itable_init=0,lazy_journal_init=0 -F" -if [ -f /etc/redhat-release ]; then - if grep -q '6\..' /etc/redhat-release; then - # lazy_journal_init is not recognized in redhat 6 - MKFS="mkfs.ext4 -E lazy_itable_init=0 -F" - elif grep -q '7\..' /etc/redhat-release; then - FSCK=fsck.xfs - MKFS=mkfs.xfs - fi -fi - -LOGTAG=safe_format_and_mount -LOGFACILITY=user - -function log() { - local readonly severity=$1; shift; - logger -t ${LOGTAG} -p ${LOGFACILITY}.${severity} -s "$@" -} - -function log_command() { - local readonly log_file=$(mktemp) - local readonly retcode - log info "Running: $*" - $* > ${log_file} 2>&1 - retcode=$? - # only return the last 1000 lines of the logfile, just in case it's HUGE. - tail -1000 ${log_file} | logger -t ${LOGTAG} -p ${LOGFACILITY}.info -s - rm -f ${log_file} - return ${retcode} -} - -function help() { - cat >&2 <<EOF -$0 [-f fsck_cmd] [-m mkfs_cmd] [-o mount_opts] <device> <mountpoint> -EOF - exit 0 -} - -while getopts ":hf:o:m:" opt; do - case $opt in - h) help;; - f) FSCK=$OPTARG;; - o) MOUNT_OPTIONS=$OPTARG;; - m) MKFS=$OPTARG;; - -) break;; - \?) log error "Invalid option: -${OPTARG}"; exit 1;; - :) log "Option -${OPTARG} requires an argument."; exit 1;; - esac -done - -shift $(($OPTIND - 1)) -readonly DISK=$1 -readonly MOUNTPOINT=$2 - -[[ -z ${DISK} ]] && help -[[ -z ${MOUNTPOINT} ]] && help - -function disk_looks_unformatted() { - blkid ${DISK} - if [[ $? == 0 ]]; then - return 0 - fi - - local readonly file_type=$(file --special-files ${DISK}) - case ${file_type} in - *filesystem*) - return 0;; - esac - - return 1 -} - -function format_disk() { - log_command ${MKFS} ${DISK} -} - -function try_repair_disk() { - log_command ${FSCK} -a ${DISK} - local readonly fsck_return=$? - if [[ ${fsck_return} -ge 8 ]]; then - log error "Fsck could not correct errors on ${DISK}" - return 1 - fi - if [[ ${fsck_return} -gt 0 ]]; then - log warning "Fsck corrected errors on ${DISK}" - fi - return 0 -} - -function try_mount() { - local mount_retcode - try_repair_disk - - log_command mount -o ${MOUNT_OPTIONS} ${DISK} ${MOUNTPOINT} - mount_retcode=$? - if [[ ${mount_retcode} == 0 ]]; then - return 0 - fi - - # Check to see if it looks like a filesystem before formatting it. - disk_looks_unformatted ${DISK} - if [[ $? == 0 ]]; then - log error "Disk ${DISK} looks formatted but won't mount. Giving up." - return ${mount_retcode} - fi - - # The disk looks like it's not been formatted before. - format_disk - if [[ $? != 0 ]]; then - log error "Format of ${DISK} failed." - fi - - log_command mount -o ${MOUNT_OPTIONS} ${DISK} ${MOUNTPOINT} - mount_retcode=$? - if [[ ${mount_retcode} == 0 ]]; then - return 0 - fi - log error "Tried everything we could, but could not mount ${DISK}." - return ${mount_retcode} -} - -log warn "=====================================================================" -log warn "WARNING: safe_format_and_mount is deprecated." -log warn "See https://cloud.google.com/compute/docs/disks/persistent-disks" -log warn "for additional instructions." -log warn "=====================================================================" -try_mount -exit $? |