Preserving copies of data which enable recovery from a data loss event.

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11
votes
7answers
30k views

How can I get back a system file after deleting it from my Mac?

I've deleted a system file from my Mac and need to get it back. System files can include: hidden files in the root of / - especially unix files in /private /System files /Library files /...
116
votes
8answers
388k views

How can I manually delete old backups to free space for Time Machine?

I use a Time Capsule for backup and now I want the drive to back up data from an extra Mac. But the drive is filled up with old backups from Mac 1. There simply is not enough space available for the ...
33
votes
5answers
73k views

Fastest and safest way to copy massive data from one external drive to another

I need to be able to copy about 2TB of data from an external drive (single USB external disk) to a another external drive (Drobo attached via Firewire). Finder is not an option. If it hits any ...
35
votes
3answers
52k views

How to wipe huge .MobileBackups folder?

I found my .MobileBackups folder quite large, it weights 160 Gi. Shouldn't the .MobileBsckups folder be wiped after the TM 'backup session'? Since I have backup done on my external drive how can I ...
17
votes
8answers
19k views

Time Machine ridiculously slow after El Capitan upgrade

I recently updated to El Capitan, and told Time Machine to backup. It got stuck on Preparing Backup for hours, so I stopped it, deleted the InProgress file, rebooted and tried again. After ~30 mins, ...
11
votes
8answers
125k views

Remove unnecessary backups from TimeMachine to get space

I know that oldest backups are removed automatically when there is no space for new ones on TimeMachine. I use TimeCapsule also for sharing files on WiFi, so I’d like to free some space by removing of ...
14
votes
6answers
66k views

How to resolve “iTunes could not back up the iPhone because the backup was corrupt”?

When I try to sync my iPhone with my computer, I get the following message: iTunes could not back up the iPhone "iPhone Name" because the backup was corrupt or not compatible with the iPhone....
13
votes
7answers
3k views

Is there a bash command to check to see if Time Machine has finished backing up?

I'm writing a script that will rsycnc my Time Machine directory to a remote server using ssh. I've switched from a shell script to an AppleScript and then back to an Apple script and I don't really ...
7
votes
4answers
4k views

How to revert to Lion from Mountain Lion?

I'm running a Mid-2011 Macbook Air, my first Mac. When I bought it, it had Lion pre-installed. Yesterday I picked up an external hard drive, and made my first Time Machine backup. In the next few ...
1
vote
1answer
11k views

How to restore from a Time Machine backup when there is already a user account set up?

I can't figure out how to access my Time Machine backups since Apple replaced a defective hard drive. Some Background: My setup: iMac 24" (Early 2009), 3.06 GHz Core 2 Duo, OS X 10.7.3. I have been ...
2
votes
4answers
68k views

Restoring an OLD iPhone backup

I recently made a full backup of my iPhone 4S to my computer. I was having some issues with it so I when into DFU mode and did a clean install. Unfortunately as soon as iTunes finished installing iOS ...
1
vote
0answers
1k views

How can Time Machine in Lion backup the volume content of a sparse bundle disk image?

Using Mac OS X 10.7 (Build 11A511), attempts to backup volume content with Time Machine have failed. With a simple non-encrypted image I tried three approaches: the traditional workaround, which ...
7
votes
5answers
7k views

Encrypting/protecting Time Machine backup drive?

How do you guys secure/protect your Time Machine backup drive? Even though it's an external drive, it's still susceptible to physical theft though. What do you guys do for precautions?
5
votes
5answers
38k views

I forgot my local backup password to unlock the iPhone backup file

I just received my new iPhone from Apple after I had my old one changed due to it being a rather bad specimen. Now I'm occurring a rather irritating problem, as I connected my iPhone with my iTunes to ...
1
vote
2answers
17k views

Create backup iPhone with forgotten encryption password

I'm trying to make a backup from my iPhone, however it's set to be password protected. I do now know the password, as I've never set one. I've tried all the passwords I know, which I've ever used to ...
8
votes
5answers
18k views

DIY Fusion Drive: Adding Recovery HD to a CoreStorage Volume Group

After creating a "DIY Fusion Drive" using the methods below in 10.8, I'm now wondering how to add a RecoveryHD partition to the internal drive. Here's what I did to create a Logical Volume Group ...
22
votes
2answers
131k views

How big should my Time Machine backup drive be?

My 13" MacBook Pro has 500GB internal hard drive space, and I bought a 1TB external HDD to use as my Time Machine backup. I only read from many articles that the backup should be about 2 to 3 times ...
15
votes
3answers
13k views

How can I “clean out” my Time Machine backups if Time Machine won't backup because the disk is full?

When Time Machine tries to make a backup, it informs me that it can't because the backup disk is full. What it's mostly full of (about 700GB of 1TB) is prior backups of the same machine. Time ...
11
votes
2answers
1k views

How to force a Time Machine deep traversal?

After a few kernel panics and an accidental hot-unplugging of my Firewire Time Machine drive, I'd like to make sure that my Time Machine exactly matches my Macintosh HD, much like rsync -a. Is there ...
2
votes
2answers
21k views

What is the best backup strategy for macbook pro laptop?

I have a lot of data on my macbook pro retina laptop and i am looking for the best backup strategy. I have previously had a windows desktop with an external harddrive connected all of the time and a ...
2
votes
0answers
170 views

How to verify that an iTunes backup is valid?

Is there a way to verify that a backup of an iPhone is valid (other than wiping the device and attempting to restore it :))? I've had a recent catastrophic incident involving an iTunes encrypted ...
9
votes
7answers
2k views

What are the best disk cloning tools?

Money is no object. I want a bit for bit perfect copy of a hard drive/partition which is bootable (is either possible) to be used in a backup regimen. I have heard of some tools but your ...
5
votes
2answers
2k views

How can I get Time Machine to back up the contents of a File Vault while logged in?

Disclaimer: this question and answer are targeted to the Snow Leopard implementation of FileVault where the user home folder is only encrypted in a bundle. Lion's implementation of FileVault doesn't ...
4
votes
3answers
509 views

Copying Time Machine backup, destination takes more than original size, are hardlinks being expanded?

I'm copying the backup folder of Time Machine, but it's taking too long, the backup is 90GB and the copy already reports 160GB and there's 60% to go yet, so I suspect it's copying hardlinks as ...
4
votes
2answers
46k views

How to restore individual app data from iCloud while keeping all the other apps installed and new data created since the last iCloud backup?

I just discovered that one of my apps X "disappeared" for whatever reason from my iPad. It contained MBs of valuable data, and luckily I have an iCloud backup dated a week ago or so which have it all. ...
3
votes
2answers
2k views

How can I use tmutil to figure out which files just got deleted?

I'm on Lion and until ten minutes ago I didn't know that the nifty new tmutil existed. But now I'm a little uncertain with all its options and sub-commands which to use to try and figure out what went ...
1
vote
0answers
199 views

Apple Backup encrypted format specs? I need to decrypt part of a backup (for which I have the key) that iTunes won't restore

An odd one here: Encrypted iTunes backup backup completed successfully Key stored in the Keychain (since the first backup of this device a long while ago) Also stored in PasswordSafe and both ...
6
votes
1answer
83 views

Does a new computer require a new Time Machine drive?

If I buy a new iMac to replace an old iMac do I need a new or different HD for Time Machine?
6
votes
3answers
173k views

How to backUp an iPhone with a black/blank screen?

Recently I dropped my iPhone 4 and when I picked it up the screen was all black but the sensor was still on. I called Apple and basically they said they can try to repair it or just buy a new one. So, ...
3
votes
2answers
362 views

How do I change my TimeMachine volume in a script

I have a TM volume on my desk at work and I also have one at home. That way, I have a better shot of my data surviving a disaster. Right noow I have to manually change the TM volume based on where I ...
3
votes
3answers
11k views

What's the fastest way to get data off Time Capsule and onto an external drive?

I plugged an external drive into Time Capsule using the USB input on the back. Then I used Finder to move data from the Time Capsule's drive to the USB drive. Finder says it'll take over 24 hours to ...
2
votes
1answer
429 views

Time Machine deleting backups from several months ago (but not the oldest)?

During its "Cleanup" phase, Time Machine has recently been deleting backups from several months ago—even though these aren't the oldest backups, and my backup drive isn't full. My backups go back to ...
2
votes
2answers
2k views

Shortcut to eject all external hard drives but not MobileBackups

So far I've been using the following AppleScript to eject all external drives at once conveniently using a shortcut: tell application "Finder" eject (every disk) end tell This script is is ...
1
vote
0answers
85 views

Network Intermittency with Time Machine causes a 'Completed Verification' dialog

It appears that when disconnecting from a network while a TM backup is in progress results in the "Time Machine has completed a verification of your backups" message once the connection to the backup ...
0
votes
1answer
10k views

Recovery of deleted SMS

I have never backed up or sync'd my iPhone 4S and need to recover deleted text messages. Are these stored until they are overwritten? When would the overwriting occur on a 32GB iPhone?
0
votes
2answers
2k views

Time Machine stuck on “Preparing backup” whenever returning from Boot Camp to OS X

I have Windows 7 installed in Boot Camp. Whenever I go into Windows 7 and then go back to OS X Lion, and then run a Time Machine backup, Time Machine is stuck on the "Preparing Backup" stage for a ...
14
votes
4answers
12k views

MTMFS consuming an entire CPU core and fans running full bore with Lion

You may be aware that Lion introduced MTMFS, the Mobile Time Machine File System. I've had a couple of instances now where MTMFS has been chewing up an entire core of my dual-core (mid 2009) MacBook ...
14
votes
2answers
22k views

With File Vault ON are time machine backups encrypted?

I have been using time machine to back up to a wireless external drive since I got my mac. Today I used filevault to encrypt my hard drive. Will this affect how Time Machine backs up my files? Will ...
6
votes
1answer
2k views

Time Machine, ZFS and deduplication

I'm currently exporting a ZFS partition with dedup=on using ubuntu-zfs and netatalk. However, time-machine insists on creating a sparsebundle on it, and it made me start wondering if this would have ...
6
votes
6answers
8k views

Backing up a Boot Camp partition

I see in the Time Machine options that my Boot Camp partition is excluded. I haven't even tried to remove it from the list of exceptions since I have read that Time Machine will not work with NTFS ...
4
votes
1answer
3k views

Time Machine Full, But Only One Backup (or, what are .RecoverySets and why do they take up so much space?)

Something crazy is going on with Time Machine. I upgraded to Mavericks yesterday with no issues. After performing a final backup on Mountain Lion, I disconnected my backup drive out of an abundance of ...
28
votes
8answers
10k views

What are the downsides to using Time Machine?

I hear a lot about the good aspects of using Time Machine, particularly the fact that it's so easy to use that people actually do backups! What are the downsides to using Time Machine compared to ...
12
votes
5answers
47k views

How to change the location where iTunes stores backups of iPhones?

When I sync my iPhone 4 with my iTunes, the latter starts to make a backup before doing the actual sync. This backup often takes a lot of time to make, which is very annoying. What is even worse (...
9
votes
5answers
17k views

How can I back up a complete IMAP account?

I have a huge IMAP email account that contains a lot of subfolders and a lot of messages (dating back to 2005). Is there a simple way to back up these folders and messages so I can delete them from ...
7
votes
2answers
2k views

Use a network Time Machine drive locally

I typically backup over a network to a networked hard drive on another machine. For some unknown reason, backups tend to get incredibly slow over the network (the first few backups work fine and ...
5
votes
6answers
12k views

Time Machine stuck on “Preparing Backup”

I have a MacBook Pro from 2009. It came with OS X 10.6 (Snow Leopard) but I upgraded to 10.8 (Mountain Lion). A few days ago, I tried to backup my files on an external hard drive, like I have ...
17
votes
4answers
83k views

After deleting an app, can you (much) later reinstall it and restore its data from iCloud?

I have several games that, combined, use up a pretty good chunk of my iPhone's flash. I haven't played some of them for a while, and would like to remove them. However, at least before iCloud, ...
13
votes
3answers
101k views

How do I restore my iPhone from an iCloud backup?

I just installed iOS 5 on my iPhone 4 several days ago, and I backed it up to iCloud. After performing a sync with my PC, it deleted a bunch of apps. I'd like to restore these from the iCloud backup. ...
13
votes
3answers
10k views

How secure are iCloud backups?

Are iCloud backups encrypted, both when transmitted and stored? Is it possible for someone at Apple to access any backup made to the data enter? I have heard that when apps have been pulled from the ...
8
votes
3answers
23k views

Can I restore a Snow Leopard backup onto a Lion machine?

So I am a little confused and slightly worried, and I was wondering if someone could answer this. I have a Time Machine backup saved on an external HD for my Mac mini that is running the latest ...