Time Machine for Ubuntu - Revision history

Girts at 09:53, 26 June 2009

2009-06-26T09:53:02Z

@@ Line 7: / Line 7: @@
 Things to be done:
 # Age old files
-# Sync new files
+# Archive new files
 === Aging old files ===
@@ Line 62: / Line 62: @@
     $ECHO $SNAPSHOT_RW not present. Dying.
 fi
 </pre>

Girts at 09:49, 26 June 2009

2009-06-26T09:49:15Z

← Older revision		Revision as of 09:49, 26 June 2009
Line 6:		Line 6:

	Things to be done:		Things to be done:
	1) Age old files		# Age old files
	2) Sync new files		# Sync new files

	=== Aging old files ===		=== Aging old files ===

Girts at 09:48, 26 June 2009

2009-06-26T09:48:55Z

← Older revision		Revision as of 09:48, 26 June 2009
Line 4:		Line 4:

	WARNING: There is absolutely no guarantee, that this script is working, moreover, there is no guarantee, that it will not harm your computer!		WARNING: There is absolutely no guarantee, that this script is working, moreover, there is no guarantee, that it will not harm your computer!

			Things to be done:
			1) Age old files
			2) Sync new files

			=== Aging old files ===
			The snapshots will be kept in directories named snap.0 (newest), snap.1, snap.2, etc.
			Aging old files means making hard links of old files (duplicating them).
			Aging is accomplished with the following script:
			<pre>
			#!/bin/bash

			unset PATH # suggestion from H. Milz: avoid accidental use of $PATH

			SNAPSHOT_RW=/path/to/your/backup/directory

			# change these paths to your needs, when desired
			ECHO=/bin/echo
			RM=/bin/rm
			MV=/bin/mv
			CP=/bin/cp
			TOUCH=/usr/bin/touch
			CPIO=/bin/cpio
			RSYNC=/usr/bin/rsync

			# how many snapshots will be kept
			SNAP_COUNT=56

			if [ -d $SNAPSHOT_RW ]; then

			# rotating the snapshots
			# step 1: delete the oldest snapshot, if it exists:
			if [ -d $SNAPSHOT_RW/snap.$SNAP_COUNT ]; then
			$ECHO Clearing oldest snapshot...
			$RM -rf $SNAPSHOT_RW/snap.$SNAP_COUNT
			fi
			# step 2: shift the middle snapshots(s) back by one, if they exist
			ip=$SNAP_COUNT;
			i=$(($ip-1));
			while [ $i -ge 1 ]
			do
			if [ -d $SNAPSHOT_RW/snap.$i ]; then
			$ECHO "Aging snap.$i..."
			$MV $SNAPSHOT_RW/snap.$i $SNAPSHOT_RW/snap.$ip
			fi
			i=$(($i-1))
			ip=$(($ip-1))
			done

			# step 3: make a hard-link-only (except for dirs) copy of the latest snapshot, # if that exists
			if [ -d $SNAPSHOT_RW/snap.0 ] ; then
			$ECHO Aging snap.0...
			cd $SNAPSHOT_RW/snap.0 && /usr/bin/find . -print \| $CPIO -dplm $SNAPSHOT_RW/snap.1
			fi

			else
			$ECHO $SNAPSHOT_RW not present. Dying.
			fi

			</pre>

Girts at 09:43, 26 June 2009

2009-06-26T09:43:58Z

← Older revision		Revision as of 09:43, 26 June 2009
Line 2:		Line 2:

	The template for this script is taken from [http://www.macgeekery.com/tips/automation/time_machine_for_tiger Mac Geekery].		The template for this script is taken from [http://www.macgeekery.com/tips/automation/time_machine_for_tiger Mac Geekery].

			WARNING: There is absolutely no guarantee, that this script is working, moreover, there is no guarantee, that it will not harm your computer!

Girts: New page: Here I described scripts I created to make backups on Ubuntu, similar to those used by [http://www.apple.com/macosx/what-is-macosx/time-machine.html Time Machine] on Mac OSX. The template...

2009-06-26T09:43:06Z

New page: Here I described scripts I created to make backups on Ubuntu, similar to those used by [http://www.apple.com/macosx/what-is-macosx/time-machine.html Time Machine] on Mac OSX. The template...

New page

Here I described scripts I created to make backups on Ubuntu, similar to those used by [http://www.apple.com/macosx/what-is-macosx/time-machine.html Time Machine] on Mac OSX.

The template for this script is taken from [http://www.macgeekery.com/tips/automation/time_machine_for_tiger Mac Geekery].