Time Machine is Apple's built-in backup software. Time Machine was first introduced on OS 10.5 Leopard.

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27
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4answers
14k views

On OS X, what files are excluded by rule from a Time Machine backup?

In addition to whatever files I may choose to exclude, what files does the system exclude by rule or classification? It might make sense not to backup Trash or Caches, but I'm looking for a way to ...
107
votes
7answers
355k 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 ...
6
votes
3answers
11k views

Where does Time Machine store its settings?

I'm looking for the file that contains all the Time Machine exclusions entered in its Options dialogue. I know that (some of?) the scheduling related settings are stored in the ...
5
votes
2answers
7k views

How to restore system from network drive?

I have a 2014 MacBook Pro. I want to restore my OS from a Time Machine backup which is on a shared network volume. When I restart in recovery (Apple-Opt-R), it boots from internet, but if I try to ...
2
votes
4answers
4k views

Enabling Time Machine for a USB HDD with NTFS

When I've plugged in my USB HDD (WD Passort Elite) for the first time, the system had asked me whether I want to use this HDD as time machine drive. I've chosen smth like 'decide later' and continued ...
4
votes
2answers
920 views

Time machine wants to backup too much

Time Machine stopped this morning, stating it has too little disk space left. It wants to back up 200 gigs, but my local hard drive has 240 gig used and 150 gig are excluded in the Time Machine ...
19
votes
11answers
65k views

How to fix slow Spotlight and Time Machine after upgrading to 10.7.5?

Since updating to 10.7.5 both Spotlight and Time Machine are very slow. To index a normal system drive Spotlight calculates to need several days. As a result Time Machine takes up to an hour or more ...
12
votes
3answers
1k views

What is time machine backing up?

Is there a way to find out what time machine is backing up? My time machine has been running fine, but it suddenly started to back-up 20GB a few days ago when I have not changed that much since last ...
11
votes
4answers
700 views

Upgrade time machine storage?

I'm going to buy 2T external HDD to replace my already full 1T HDD external. I want to keep the time machine backup data. In this case, is it just OK to copy all the time machine backup data in 1T HDD ...
6
votes
6answers
11k views

Is there a faster way to copy time machine files from one disk to another?

I'm trying to move my time machine backup files all under Backups.backupdb to another drive. I initiated a file copy overnight (b/c I saw that it took OSX forever to prepare for the copy...it ...
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 ...
1
vote
1answer
8k 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 ...
3
votes
2answers
5k views

How to search Mail in Time Machine?

I'm looking for a specific email I may have deleted, but I don't remember when I received it (it was at least a couple months ago). Digging through my Mail history in Time Machine for a single email ...
3
votes
3answers
3k views

If I encrypt a Time Machine backup disk, is the entire disk encrypted or just the Backups.backupdb directory?

If I check the "Encrypt backup disk" checkbox in Time Machine (in OS X Lion), I get this warning: Will just the Time Machine "Backups.backupdb" directory be encrypted, or the entire disk? In other ...
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 ...
32
votes
2answers
47k 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 ...
21
votes
1answer
4k views

How to disable or delay “Time Machine hasn't backed up your computer in x days” message?

Mountain Lion has a very useful feature where it can alternate between multiple backup destinations. I use this to back up to both a network share at home and an external drive I keep offsite. Because ...
18
votes
2answers
112k 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 ...
7
votes
2answers
15k views

How to preserve Time Machine backups and start over with a new one?

I make my Time Machine backups on an external hard drive. Recently I upgraded from Mountain Lion to Mavericks. Now I need the ability to freeze those old backups I've done with Mountain Lion in case I ...
15
votes
3answers
12k 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 ...
3
votes
2answers
497 views

Time Machine Backing Up Large Amounts of Data Each Time

I've got 2 time machine drives. I have one at home that gets used on the weekend and another that gets backed up to during the week. I recently replaced the one at my office. The only thing that is ...
11
votes
4answers
4k views

How do I make Spotlight stop indexing my Backup drive?

I have a 2TB external drive I use for Time Machine. At random intervals, it will decide to spin up and my entire UI freezes until it's finished. This is incredibly annoying. It appears that this is ...
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
2answers
13k views

How do you access the user library on a time machine backup

With Lion 10.7, how does one access the user library on a time machine backup through the Finder?
8
votes
9answers
8k views

Time Machine: “Enter Time Machine” menu command does not do anything

I have Time Machine running on an external hard drive and it reports happily that it is doing backups and I have no reason to doubt it. But when I try to look at the backups by clicking "Enter Time ...
6
votes
2answers
2k views

Time Capsule and multiple Macs

Does the Time Capule support Time Machine backups from multiple macs out of the box?
4
votes
5answers
13k views

How to restore a missing Recovery HD partition

I bought a second hand Macbook Pro which came with OSX Lion installed, when I wanted to clean it I found out that it had no Recovery HD partition. I confirmed this through the Disk Utility (enabled ...
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 ...
2
votes
3answers
1k views

One user can't open anything after Yosemite upgrade

My Mac mini (early 2009) was getting slow, so I decided to do some upgrades. I got 8 GB of ram and a 128 GB SSD from crucial that their wizard verified as being compatible. I downloaded Yosemite from ...
2
votes
1answer
14k views

Attempting to revert to Mac OS X Mavericks, now can't get out of OS X Utilities!

Here is my situation: I have an MBP Retina 2013 with an SSD drive which I ran with Mavericks with no problems for about almost a year now. I recently upgraded to Yosemite which seemed to work well ...
2
votes
3answers
3k views

Recovering files from Time Machine backup disk after wrong dd

I made a horrible mistake: I ran dd on an external hard drive, that was the Time Machine backup storage, to make it bootable. After a few seconds I cancelled the command, but the hard drive is shaped ...
1
vote
1answer
166 views

Time Machine + FileVault on Lion or Mountain

If I stop the backup it says: "now encrypting...", is the data saved "not encrypted" before being encrypted? Can I make it "always encrypted"? Non-encrypted transfers are a problem for me.
7
votes
4answers
5k views

Why is Time Machine over-stating the amount of data that needs to be backed up?

I shuffled my home directory around and moved it back to my spinning platter drive in my MacBook. Ever since, Time Machine has been running my machine hot (the fan comes on when Time Machine starts ...
6
votes
1answer
81 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
4answers
13k views

How do local TimeMachine backups work exactly?

Since Mac OS X 10.7 (Lion) TimeMachine performs local backups to /.MobileBackups if enabled (tmutil enableLocal, default enabled on portable macs). The different types of backups are color encoded in ...
6
votes
1answer
4k views

How does the new “local snapshots” feature of Time Machine in Lion work?

Apple's advertising for Lion highlights a new "local snapshots" feature of Time Machine: OS X Lion lets you take the Time Machine experience with you when you’re away from your Time Capsule or ...
2
votes
2answers
804 views

How can I get my laptop's existing system onto a new replacement drive?

I'm planning to swap out my early 2011 MBP's drive for a larger capacity one. I'm running Mac OS 10.7.5. I have available a 1 TB external USB-connected drive that I'm using for Time Machine backups. ...
2
votes
1answer
399 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
1k views

Command Line method to backup using two Time Machine disks

Does anyone know of a command line method to select the active Time Machine disk? I would like to alternate between two backup disks for redundancy. I would like this to be automated, presumably via ...
1
vote
5answers
3k views

Why won't Time Machine work with a drive connected to an Airport Extreme?

Is there any technical limitation or engineering reason that could possibly be behind the inability to RELIABLY use a connected USB drive with Airport Extreme for Time Machine?
1
vote
3answers
6k views

Can't delete old Time Machine backups

I changed hard drives for my Time Machine backup. I can't delete the backups on the older hard drive. I get an error code after I use "Move to Trash": -8072. It spends 45min deleting some 1,000,000+ ...
0
votes
1answer
203 views

Is Time Machine sufficient in the case of a reformat?

I installed OS X Server 4.0 on top of Yosemite and my VPN got hosed. I've tried many things to fix the issue including attempted uninstall of OS X Server. Now I am going to re-install the OS. In ...
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 ...
16
votes
6answers
16k views

How can I avoid repeated “Time Machine must create a new backup” errors when backing up to a third party NAS?

My backups seem to go well backing up to my NAS however randomly after a few weeks I get the following error. Several users get this error intermittently however I have yet to find a solution. Any ...
21
votes
5answers
63k views

How to make Time Machine backups over network without OS X server?

At our institute, we have several Macs (from 10.6 to 10.8) but not one is running a server version. In the one running 10.8 there are 4.5 TB of hard-drives from which 2 x 2 TB are raided together ...
12
votes
3answers
6k views

How do I eject the Time Machine backup drive automatically after each backup?

How do I set Time Machine to eject my external Time Machine backup drive automatically after each backup?
17
votes
4answers
19k views

Upgraded to Lion: Time Machine spends a LOT of time indexing backup

I upgraded my MacBook Pro to Lion and one of the problems I've had is that Time Machine keeps running and running, and the fans go on. This usually seems to be in the state where it indexes the ...
12
votes
4answers
10k 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 ...
13
votes
4answers
9k views

Time Machine keeps asking to create new backup?

Every time a backup completes I get this message - 'Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you.' I am backing up to ...