Questions tagged [backup]

The process or product of preserving data for the purpose of recovery from a data loss event.

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17
votes
7answers
42k 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 /...
5
votes
2answers
2k views

Revert to El Capitan

I'm having major 'disagreements' with Sierra, compatibility issues with software etc, & have decided to revert to El Capitan. I have done this many times in the past, tested an OS then gone back ...
220
votes
8answers
674k 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 ...
82
votes
6answers
165k 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 ...
48
votes
3answers
67k views

How to wipe huge .MobileBackups folder?

I found my .MobileBackups folder quite large, it weighs 160 GiB. Shouldn't the .MobileBackups folder be wiped after the Time Machine 'backup session'? Since I have backup done on my external drive ...
8
votes
3answers
15k views

How do I backup and restore my IPA app backups in iTunes 12.7?

Today, Apple released iTunes 12.7. Surprisingly for a point-release this version removes the iOS App Store and iOS app management features: https://www.macrumors.com/2017/09/12/apple-itunes-12-7-no-...
7
votes
4answers
89k 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 went into DFU mode and did a clean install. Unfortunately as soon as iTunes finished installing ...
8
votes
5answers
8k 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?
17
votes
8answers
102k 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. ...
22
votes
3answers
75k views

What does Time Machine back up?

Does Time Machine backup system files, kernel files and other OS-related files? I have corrupted system drivers and files and I want to do a fresh install of OS X but I also want to back up my ...
9
votes
2answers
601 views

Delete all backups of specific file/folder with tmutil

I'm trying to delete all backups of specific items through the command line. I can accomplish this using the GUI through the following steps: Enter Time Machine Navigate to the file to be deleted ...
13
votes
3answers
40k views

How do I get rid of my encrypted iPhone backups to start from scratch?

Is there a way I can delete all my encrypted iPhone backups for which I forgot the password, so that I can start backing up from fresh? At the moment I'm stuck in this loop (below) which I can't ...
9
votes
3answers
28k views

How can I delete Time Machine backups, moved into trash?

I was going to delete the Time Machine backups. I made a mistake and instead of deleting them using Time Machine, I just moved the Backups.backupdb folder to the trash. Now, if I try to empty the ...
4
votes
1answer
400 views

Recurring Volume damage + Time Machine issues

This may take some explaining, so please bear with me. Mac Pro 4,1/5,1 High Sierra 10.13.5 4 HDs & a boot SSD installed. Related to Add Recovery Partition to APFS drive? & peripherally to ...
3
votes
2answers
20k 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 not know the password, as I've never set one. I've tried all the passwords I know, which I've ever used to ...
50
votes
9answers
57k 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, ...
16
votes
8answers
155k 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 ...
16
votes
4answers
133k views

iCloud storage full: “Not Enough Storage”. Backups exceed 5GB

Just like everyone else, I get the notification that my iCloud is full and no backup can be made. iOS gives me the suggestion to upgrade my storage on my iCloud account. Because I only want to store ...
16
votes
4answers
57k views

Backup iPhone to external drive on Mac

What is the best technique for changing the backup location of one's iPhone to an external drive. It would seem that with small SSD's (256GB) and very large iOS devices (128GB) that Apple would easily ...
16
votes
7answers
5k 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
2answers
2k views

Difference between enabling Time Machine's “Encrypt Backups” option, and encrypting from Disk Utility?

I'm setting up Time Machine backups on a new external hard disk. I chose to first encrypt the disk via Disk Utility: But I also see these options: Is there any difference between an "Encrypted" ...
8
votes
1answer
20k views

How do I continue to use Time Machine backups after switching my hard disk?

I replaced my HD with an SSD (256 GB), and restored the contents from my Time Machine backup (external HD 320 GB). Now, after a day of working, I plugged in my external HD to make the next backup. ...
8
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 ...
5
votes
2answers
2k views

Migrate a Time Machine backup in terminal

/Volumes/Original_Time_Machine is no longer being backed up to, but contains old backups that I want to keep. /Volumes/New_Time_Machine_Archive is an empty partition Both of these are on separate ...
5
votes
1answer
7k views

Is it possible to backup iOS devices to an external drive?

I have a new Mac Pro with a small 256GB SSD. I have a larger 2TB drive that I run backups to. My girlfriend has a MacBook Air with a tiny 128GB SSD. Our problem is our iPhones have 50GB of music, ...
9
votes
2answers
7k views

Create local backup of notes in Notes.app on macOS

I'm using a company-issued MacBook where we cannot use iCloud to backup notes. But I would like to have a way to create backups of the notes, since they are not included in the company backup software....
0
votes
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
61k 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 ...
45
votes
2answers
244k 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 ...
10
votes
5answers
20k 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 ...
23
votes
4answers
16k 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 ...
16
votes
6answers
7k 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 ...
17
votes
3answers
13k 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 ...
9
votes
5answers
106k views

How to restore Mac OS X on a new hard-drive?

I am going to upgrade my MacBook Pro hard-drive, but before doing so I'm trying to figure out how to restore OS X on it. My DVD drive doesn't work so I cannot re-install from the DVD. I have a recent ...
5
votes
2answers
22k 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 ...
4
votes
0answers
891 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 ...
3
votes
2answers
3k views

Rsync with Linux server: special character problem

I have a problem with using rsync for backuping files on my remote linux machine to my Mac. The first time all is well, but apparently there is a problem with special characters between the mac and ...
17
votes
3answers
16k 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 ...
15
votes
2answers
21k views

What folders can be safely excluded from Time Machine backup?

I want to know list of folders that can be safely excluded from Time Machine backups while ensuring that full restore can get me a same machine running immediately. The reason why I want to do this ...
12
votes
5answers
28k 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 ...
12
votes
3answers
2k 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 ...
12
votes
7answers
19k 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 ...
6
votes
6answers
9k 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 ...
21
votes
4answers
100k 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, ...
9
votes
3answers
94k 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. ...
8
votes
3answers
12k views

Merge Time Machine Backup

Is it possible to merge to Time Machine Backups? When I look inside the sparse-bundle which Time Machine generates then I see that the folder-structure ordered by dates. So theoretically I could copy ...
5
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 ...
10
votes
7answers
3k 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 ...
7
votes
3answers
602 views

How do you lengthen the amount of time that Time Machine keeps hourly backups?

Time Machine keeps hourly backups for 24 hours by default before purging for daily backups and I'd like to extend this further (to a week of hourly backups). Is there a way to change the backup ...
6
votes
2answers
2k views

How can I get Time Machine to back up the contents of a FileVault 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 ...