__ __ __ __ _____ _ _ _____ _ _ _
| \/ | \ \ / / | __ \ (_) | | / ____| | | | |
| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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# This file is part of Relax-and-Recover, licensed under the GNU General
# Public License. Refer to the included COPYING for full text of license.
#
# 390_create_partitions.sh
# BLOCKCLONE_SAVE_MBR_DEV was not set, we will not have necessary files
# to create partitions
if [ -z "$BLOCKCLONE_SAVE_MBR_DEV" ]; then
return
fi
local backup_path="$( url_path "$BACKUP_URL" )"
local opath="$( backup_path "$scheme" "$path" )"
# Destination partition is not present, try to recreate.
if [ ! -b "$BLOCKCLONE_SOURCE_DEV" ]; then
LogPrint "Did not found $BLOCKCLONE_SOURCE_DEV, trying to create it"
LogUserOutput "Device $BLOCKCLONE_SOURCE_DEV was not found."
LogUserOutput "Restore partition layout to (^c to abort): [$BLOCKCLONE_SAVE_MBR_DEV]"
change_default BLOCKCLONE_SAVE_MBR_DEV
if [ -b "$BLOCKCLONE_SAVE_MBR_DEV" ]; then
# Display warning if parent of restore target device
# (BLOCKCLONE_SOURCE_DEV) and user defined parent
# (BLOCKCLONE_SAVE_MBR_DEV) differ.
# This basically means that partitions will be created on /dev/diskX
# and restore will be done to /dev/diskY which will most probably lead
# to failure.
# I don't want to make this decision transparently for user as it
# could lead to confusedness by ignoring user defined
# BLOCKCLONE_SAVE_MBR_DEV in ReaR configuration files.
# By allowing such wrong decision user could inadvertently overwrite
# wrong partition table.
# Anyhow there might be a case when such decision makes sense,
# and as we are in GNU/Linux world, we let user to shoot him self
# in the foot ...
# Just a naive check if we are dealing with same disk.
# At this stage kernel is missing any info about BLOCKCLONE_SOURCE_DEV,
# so we can't reliably determine relation between disks.
if [ $(echo $BLOCKCLONE_SOURCE_DEV | \
grep -c ^$BLOCKCLONE_SAVE_MBR_DEV) -eq 0 ]; then
LogPrint "$BLOCKCLONE_SAVE_MBR_DEV is not \
the parent of $BLOCKCLONE_SOURCE_DEV"
LogUserOutput "WARNING: $BLOCKCLONE_SAVE_MBR_DEV looks not to be a \
parent of $BLOCKCLONE_SOURCE_DEV.
You might be attempting to create partitions on wrong disk.
This might lead to corruption of existing data and \
overall failure of restore."
LogUserOutput "Would you like to continue? [Y/N]"
local tmp_continue
# Use the original STDIN STDOUT and STDERR when 'rear' was launched by the user
# because 'read' outputs non-error stuff also to STDERR (e.g. its prompt):
read tmp_continue 0<&6 1>&7 2>&8
if is_true "$tmp_continue" ; then
LogPrint "User confirmed continue with restore operation"
else
Error "Operation aborted by user"
fi
fi
# TODO: @gozora add gpt support
LogPrint "Creating partition layout on $BLOCKCLONE_SAVE_MBR_DEV"
# This will fail if BLOCKCLONE_SAVE_MBR_DEV is mounted
sfdisk $BLOCKCLONE_SAVE_MBR_DEV < \
$opath/$BLOCKCLONE_PARTITIONS_CONF_FILE
StopIfError "Failed to restore partition layout"
LogPrint "Copying bootstrap code to $BLOCKCLONE_SOURCE_DEV"
dd if=$opath/$BLOCKCLONE_MBR_FILE of=$BLOCKCLONE_SAVE_MBR_DEV \
bs=446 count=1
StopIfError \
"Failed to copy bootstrap code area to $BLOCKCLONE_SAVE_MBR_DEV"
# This might be useless nowadays
partprobe $BLOCKCLONE_SAVE_MBR_DEV
else
Error "$BLOCKCLONE_SAVE_MBR_DEV is not valid block device"
fi
# This can happen if user decides to restore to /dev/sdX and
# BLOCKCLONE_SAVE_MBR_DEV is set to /dev/sdY
LogPrint "Checking if $BLOCKCLONE_SOURCE_DEV exists"
if [ -b "$BLOCKCLONE_SOURCE_DEV" ]; then
LogPrint "Found $BLOCKCLONE_SOURCE_DEV, continue with restore"
else
Error "Failed to locate target partition $BLOCKCLONE_SOURCE_DEV"
fi
fi