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add dry-run mode and -u|--uuid for disk uuid instead of hard-coded sdN #16

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add dry-run mode and -u|--uuid for disk uuid instead of hard-coded sdN #16

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2e7a758
quiet modus to schedule the script as a cron scrip
Jun 18, 2015
00bf267
Merge branch 'release/V1.3_quiet_modus_to_enable_cron_use'
Jun 18, 2015
12064bc
add dry-run mode in RSYNC_OPTIONS
hominhquan Jul 26, 2015
9d6cc1f
Merge branch 'master' of https://github.com/crowzero/rpi-clone
hominhquan Jul 26, 2015
33e20e6
Add dry-run mode (-n) and disk-searching by UUID mode (-u)
hominhquan Aug 16, 2015
83331c1
add path to tail and head
hominhquan Nov 9, 2015
16b6da2
add type disk
hominhquan Jun 11, 2016
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73 changes: 61 additions & 12 deletions rpi-clone
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Original file line number Diff line number Diff line change
@@ -1,6 +1,18 @@
#!/bin/bash

VERSION=1.2
VERSION=1.4
# Version 1.4 2015/08/16
# * add -n (--dry-run) option for rsync
# * add -u (--uuid) option to auto-detect disk by UUID.
# System on reboot may change its disk symbol mapping, thus dangerous.
# It is more secure searching by UUID.
# Version 1.3 2015/06/18
# * add -q (quiet) option for use as cron script
# -q only works with existing backups,
# it won't initialize the destination SD card partitions with dd!
# Please initialize the destination SD card from the shell (by hand)
# for the first time.
# This is to protect you for accidentally overwriting a SD Card.
# Version 1.2 2015/02/17
# * add -x option
# * tweak some echo messages
Expand All @@ -16,6 +28,9 @@ VERSION=1.2
PGM=`basename $0`

RSYNC_OPTIONS="--force -rltWDEgopt"
BLKID="/sbin/blkid"
TAIL="/usr/bin/tail"
HEAD="/usr/bin/head"

# List of extra dirs to create under /mnt.
OPTIONAL_MNT_DIRS="clone mnt sda sdb rpi0 rpi1"
Expand Down Expand Up @@ -59,11 +74,14 @@ fi
usage()
{
echo ""
echo "usage: $PGM sdN {-f|--force-initialize} {-v|--verbose} {-x}"
echo "usage: $PGM sdN {-f|--force-initialize} {-v|--verbose} {-x} {-q|--quite}"
echo " Example: $PGM sda"
echo " -v - list all files as they are copied."
echo " -n - do a dry-run of rsync."
echo " -u - UUID of one of a disk partition, used when disk is not passed."
echo " -f - force initialize the destination partitions"
echo " -x - use set -x for very verbose bash shell script debugging"
echo " -q - use quiet modus to schedule the script as a cron script"
echo ""
echo " Clone (rsync) a running Raspberry Pi file system to a destination"
echo " SD card 'sdN' plugged into a Pi USB port (via a USB card reader)."
Expand Down Expand Up @@ -96,6 +114,7 @@ usage()
}

VERBOSE=off
QUITE_FOR_CRON=false

while [ "$1" ]
do
Expand All @@ -104,6 +123,13 @@ do
VERBOSE=on
RSYNC_OPTIONS=${RSYNC_OPTIONS}v
;;
-n|--dry-run)
RSYNC_OPTIONS=${RSYNC_OPTIONS}n
;;
-u|--uuid)
shift
DST_DISK=$($BLKID -U $1 | $TAIL -c 5 | $HEAD -c 3)
;;
-f|--force-initialize)
FORCE_INITIALIZE=true
;;
Expand All @@ -113,6 +139,9 @@ do
-h|--help)
usage
;;
-q|--quite)
QUITE_FOR_CRON=true
;;
*)
if [ "$DST_DISK" != "" ]
then
Expand Down Expand Up @@ -143,6 +172,12 @@ fi

unmount_or_abort()
{
if [ "$QUITE_FOR_CRON" = "true" ]
then
echo "Sorry, mounted devices in quite_cron mode is not allowed."
echo -e "Aborting!\n"
exit 0
fi
echo -n "Do you want to unmount $1? (yes/no): "
read resp
if [ "$resp" = "y" ] || [ "$resp" = "yes" ]
Expand Down Expand Up @@ -246,6 +281,12 @@ if [ "$DST_BOOT_PARTITION_TYPE" != "$SRC_BOOT_PARTITION_TYPE" ] || \
[ "$DST_ROOT_PARTITION_TYPE" != "$SRC_ROOT_PARTITION_TYPE" ] || \
[ "$FORCE_INITIALIZE" = "true" ]
then
if [ "$QUITE_FOR_CRON" = "true" ]
then
echo "Sorry, now new disk setup allowed in quite_cron mode."
echo -e "Aborting!\n"
exit 0
fi
CLONE_MODE="rsync all files to $DST_DISK root file system"
echo ""
if [ "$FORCE_INITIALIZE" = "true" ]
Expand Down Expand Up @@ -352,8 +393,14 @@ echo "==============================="
# If this is an SD card initialization, can watch progress of the clone
# in another terminal with: watch df -h
#
echo -n "Final check, is it Ok to proceed with the clone (yes/no)?: "
read resp

if [ "$QUITE_FOR_CRON" != "true" ]
then
echo -n "Final check, is it Ok to proceed with the clone (yes/no)?: "
read resp
else
resp="y"
fi
if [ "$resp" != "y" ] && [ "$resp" != "yes" ]
then
echo -e "Aborting the disk clone.\n"
Expand All @@ -369,7 +416,7 @@ fi
# Mount destination filesystems.

echo "=> Mounting $DST_ROOT_PARTITION ($DST_ROOT_VOL_NAME) on $CLONE"
if ! mount $DST_ROOT_PARTITION $CLONE
if ! mount -t ext4 $DST_ROOT_PARTITION $CLONE
then
echo -e "Mount failure of $DST_ROOT_PARTITION, aborting!\n"
exit 0
Expand All @@ -381,9 +428,9 @@ then
fi

echo "=> Mounting $DST_BOOT_PARTITION on $CLONE/boot"
if ! mount $DST_BOOT_PARTITION $CLONE/boot
if ! mount -t vfat $DST_BOOT_PARTITION $CLONE/boot
then
umount $CLONE
umount -t ext4 $CLONE
echo -e "Mount failure of $DST_BOOT_PARTITION, aborting!\n"
exit 0
fi
Expand Down Expand Up @@ -476,14 +523,16 @@ echo ""
# Eg. modify $CLONE/etc/hostname, $CLONE/etc/network/interfaces, etc
# if I'm cloning into a card to be installed on another Pi.
#
echo -n "Hit Enter when ready to unmount the /dev/$DST_DISK partitions..."
read resp

if [ "$QUITE_FOR_CRON" != "true" ]
then
echo -n "Hit Enter when ready to unmount the /dev/$DST_DISK partitions..."
read resp
fi
echo "unmounting $CLONE/boot"
umount $CLONE/boot
umount -t vfat $CLONE/boot

echo "unmounting $CLONE"
umount $CLONE
umount -t ext4 $CLONE


echo "==============================="
Expand Down