How do I manually erase my Time Machine backup disk?

I have a 500GB external hard drive with only 43 GB left after years of serving as a Time Machine backup disk for another computer. I wanted to use the same disk for my new computer. The new computer's backup is 130 GB, and when I connected the old external drive, Time Machine said "The backup disk needs to be 130.37 GB for the backup but only 47.24 GB are available. Select a larger backup disk or make the backup smaller by excluding files." So I manually deleted the files I found on the external drive onto my computer's trash.
Big mistake. Apparently, there are still only 47.24 GB on the external, but there are no apparent backups or files on it. Furthermore, I can't restore the deleted files to the external hard drive because there isn't enough space on it. Too late, I did some searching and discovered that you can't delete files from a Time Machine external drive manually; you can only go through the gear icon in Finder and remove backups in that way.
So why does my external drive say that it has only 47 GB out of 500 even when there is nothing on it? Is there any other way to manually erase/reformat it?

Try opening Disk Utility and select the highest level drive name on the external drive. Click on the Partitions tab. Remove all the partitions on the drive by selecting each and clicking the "-" sign in the lower left corner of the partition table view. Then choose 1 Partition from the dropdown of partitions to create. Make sure the format shows Mac OS Extended-Journaled. Click Apply.
The above should delete everything on the drive and create a new single formated partition.

Similar Messages

How to search files on a Time Machine backup disk only once perfile

Greetings,
Goal: I want to find all user files in a set of Time Machine backups residing on a single disk that contain the string "escalator". Now, there are multiple hard links to each file, so a simple search would search each file multiple times. That would take a very long time. Is there a way that I can search (grep) all text files and mail files only once and list those that contain the string? Note that I only want to search user directories; that is,
/Volumes/Time Machine Backups/Backups.backupdb/username’s iMac/Latest/Macintosh HD/Users
where "Latest" can also be any of the dates of all the backups.
Thanks!

Well, to clarify:
I want to find all user text files and mail messages on a Time Machine backup disk that contain the word "escalator".
By user files I mean those in
/Volumes/Time Machine Backups/Backups.backupdb/<username>iMac/*/Macintosh HD/Users
and subdirectories thereof.
I was trying to use the find command, but it was taking a very long time, so I aborted it. I then realized that most of the files have many hard links, and therefore will be searched many times. That, of course, is a great waste.
Is there some way to search each file only once?
Thanks.

How do I get back iphone app information from a DELETED Time Machine Backup disk

Hi People,
here is what happened:
I have been using an iPhone App (Audio Memos Free - The Voice Recorder) to record song ideas (I am a songwriter). I have been using it for years.
I backed up my iphone to itunes, and backed up my mac on Time Machine. After a month or so I did a fresh OSX install on my mac, copied all of my files back from Time Machine into my mac, and tried to set up Time Machine. I was not able to do so, so I had to format the Time Machine Backup disk and doing a "fresh" mac Time Machine Backup.
After a week or so, my iphone asks me something like "you do not possess the rights for one or more applications". do not know what i did, but after 1 minute my iPhone was wiped out of all my apps and app contents. I had also the icloud app sync, so i did not worry, recovered from icloud notes, contacts, and all other things. so i did another backup to itunes.
Now i discover icloud did not recover or save the "Audio Memos Free" app content. I know the data are hidden into the Time machine Backup HD, but i do not know where to search for the itunes backup in it.
I know it is in library, but library won't show up.
Any help would be much appreciated.
PS there is a chance that, even without a data recovery, my latest itunes backup was containing these songs, but i do not know how to fish that out of the Time machine drive.
Thank you in advance.

I would email iTunes Customer Service:
http://www.apple.com/support/itunes/store/browser/
CG

How do I create more space on Time Machine backup disk?

How do I create more space on Time Machine backup disk?

since time machine in Snow Leopard stops backing up when there's no more space on the disk,
That is has not been my experience, and does not appear to be agree with this Time Machine documentation:
Backup drive fills up
As your backup drive begins to fill up to its capacity, Time Machine intelligently deletes the oldest backups to make room for newer ones (and will alert you if the "Notify after old backups are deleted" option is selected in Time Machine preferences).
from : Mac 101: Time Machine

How do I restore files from time machine backups made before reformatting macbook air?

How do I restore files from time machine backups made before reformatting macbook air?

The section titled "Restoring data from Time Machine backups" in the following may help: http://support.apple.com/kb/HT1427

HT201250 How can I exclude mail from Time Machine backups?

How can I exclude mail from Time Machine backups?

Welcome to the Apple Support Communities
Mails are stored on ~/Library/Mail, being ~ your user folder. As you are running Snow Leopard, it's easy to exclude your mails from your Time Machine backup.
Open System Preferences > Time Machine > Options, and add ~/Library/Mail to excluded items, so the next backup won't include mails. Note that you have to go to your user folder, in order to access to this directory

TS1211 I lost one calendar from my Mac Osx 10.5.8 system on G4 how can I find it from time machine backup?

I lost one calendar from my Mac Osx 10.5.8 system on G4 how can I find it from time machine backup?
Can someone help me with that pls !!!!!!

https://discussions.apple.com/thread/5176639

Can't connect to a Time Machine backup disk

I have erased my TM via Airport Utility
AirPort Utility 6.x: Erase an AirPort Time Capsule disk
So far so good...But now, I am unable to open TM, when I do it opens momentarily, then closes with message "Can't conect to a Time Machine backup disk".
I have turned off TM as I do not want to use the TM as backup..I want to use it as an EHD and transfer data to the disk manually (not by automatic TM backups).
How can I do this?

No. It is not in Finder at all..only I can see the Airport Capusle (on the left side) under "Shared"...but this does not allow for any data transfer.
It should show under "Devices", and allow for data transfer....don't know how to fix this one..

Migration Assistant won't see my Time machine backup disk

Hi,
I've seen some other discussions but they apply to slightly different situations and turn out to be too complex for me to follow. My situation is this. My Dec 2008 Macbook running Lion just died. Not sure what the problem is but it seems to be the hardrive. It will take me a while to get it fixed and in the meantime I have a farly new mac mini running Lion.
I also have been making Time Machine backups to an external drive. I read that I could migrate content from a time machine backup and I connected the backup to my mac mini and launched Migration Assistan (MA), seleted the option to migrate from a Time Machine backup. MA is stuck trying to find my disk even though it shows up in Finder. This is the screen I'm talking about http://screencast.com/t/AC0OiVzxx
I'm hoping there is the equivalent of a little on/off switch that I'm not seeing and you can direct me too.
How can I get MA to see my Time Machine backup disk? Thanks for your help.

sorry, i don't know what else it could be then. if you have another external drive you can try doing a full system restore from the TM backups onto that drive and see if MA will recognize that drive and migrate from it. other than this there is always manual migration. slow and tedious but it can be done. see this link for help with that
http://discussions.apple.com/message.jspa?messageID=6185507

Time Machine Backups disk not automatically unmounting after backup completes in Lion

I am using Time Machine over WiFi on a 3rd party USB drive shared as an AirDisk through an Airport Extreme router. Ever since switching to Lion (clean install), I have noticed that the Time Machine backup disk will not automatically unmount after a backup is completed. This creates a problem when my MacBook Pro comes back from sleep. Specifically, the WiFi notification icon in the Finder toolbar indicates that WiFi is connected, even though it's not connected to a network, and I am unable to connect to any networks for what seems like several minutes until the Time Machine backups disk disappears from the desktop and WiFi actually connects.
Since the disk was not cleanly unmounted, Time Machine then keeps complaining that the sparse bundle file is locked and cannot be mounted every time it tries to do a backup. I have to either disconnect/reconnect the USB drive physically from the router, or restart the router every time this happens to resolve the issue. That is getting really annoying to have to do every time. I suppose I could manually unmount the Time Machine disk after every backup but it's ridiculous to have to do that every time I want to put the computer to sleep.
Is anyone else experiencing this issue and is there a fix?

For others who might be having this problem - I was able to resolve it by connecting my backup disk to my mac via USB, completely erasing it, and starting over from a new backup. Disk Utility was not reporting any errors when I verified the disk, but I went ahead and repartitioned it and started fresh. The disk now automatically unmounts after backups complete.

Error Dialogue: "Time Machine Backup Disk Can't be Found"

Hello -
I am trying to "Enter Time Machine" (which is on a Time Capsule); but when I try this, I am met by the error message "Your Time Machine Backup Disk Can't be Found" with the option given to "Set up My Time Machine".
Needless to say, my Time Machine has been set up for months. When I look in the preferences, it clearly shows the disk I'm connected to (here's a screenshot of the error dialogue alongside my Time Machine preferences: http://cl.ly/1HGk).
Any idea what the best course of action is here.
ADDITIONAL NOTE: notice from the screenshot that Time Machine thinks the earliest backup is only 1 day prior. This is also strange as I have said I've had Time Machine working on this Time Capsule for months. I called Apple about this and was told that a software update had gone out yesterday that reformatted the drives and started the backups all over again. While completely fishy - I don't remember agreeing to any software update dialogue about erasing my Time Capsule - I took them at their word. Not sure if this is related, but thought I should mention it.
Thanks Crew!

MattLat wrote:
Hello -
I am trying to "Enter Time Machine" (which is on a Time Capsule); but when I try this, I am met by the error message "Your Time Machine Backup Disk Can't be Found" with the option given to "Set up My Time Machine".
Needless to say, my Time Machine has been set up for months. When I look in the preferences, it clearly shows the disk I'm connected to (here's a screenshot of the error dialogue alongside my Time Machine preferences: http://cl.ly/1HGk).
Any idea what the best course of action is here.
The +sparse bundle+ containing your backups may be corrupted. Repair it, per #A5 in Time Machine - Troubleshooting (or use the link in *User Tips* at the top of the +Time Machine+ forum).
If that doesn't help, try a "full reset" of Time Machine, per #A4 there.
ADDITIONAL NOTE: notice from the screenshot that Time Machine thinks the earliest backup is only 1 day prior. This is also strange as I have said I've had Time Machine working on this Time Capsule for months. I called Apple about this and was told that a software update had gone out yesterday that reformatted the drives and started the backups all over again.
That's the first I've heard of that. They may have been referring to the +Time Capsule Backup Update 1.0+ update several weeks ago, that some folks got but others didn't. If it finds a problem, it sends the message in this article: http://support.apple.com/kb/HT4076 The existing sparse bundle is renamed and locked, and a new one made.

Verify Disk failed for Time Machine backup disk

Thread <http://discussions.apple.com/thread.jspa?messageID=7930301&#7930301> discussed a similar issue, but it was closed without an answer so I'm opening a new one.
After a power failure I ran Disk Utility to Repair Permissions on my boot disk and Verify Disk on another that I use to store media files; neither had significant problems. Then I ran Verify Disk (verify, not repair; and disk, not permissions) on my Time Machine backup disk. It started spitting out the errors shown below. The time remaining counted up to 16 minutes, but wasn't coming down very fast so I left it running overnight. My machine is set to not sleep or spin down the disks. The next evening it was down to 12 minutes left, and was still spitting out the same errors. The second evening it was done, having failed out as shown in this log file excerpt:
2009-06-20 22:25:48 -0400: Verifying volume “Backup”
Starting verification tool: 2009-06-20 22:25:48 -0400
2009-06-20 22:25:50 -0400: Checking Journaled HFS Plus volume.
2009-06-20 22:25:50 -0400: Checking Extents Overflow file.
2009-06-20 22:25:50 -0400: Checking Catalog file.
2009-06-20 22:35:21 -0400: Checking multi-linked files.
2009-06-20 23:08:17 -0400: Checking Catalog hierarchy.
2009-06-20 23:16:59 -0400: Checking Extended Attributes file.
2009-06-20 23:18:34 -0400: Checking multi-linked directories.
2009-06-20 23:31:05 -0400: 2009-06-20 23:31:05 -0400: Incorrect owner flags for directory hard link (id = 3763501)
2009-06-20 23:31:05 -0400: 2009-06-20 23:31:05 -0400: 2009-06-20 23:31:05 -0400: (It should be 0x2 instead of 0x0)
2009-06-22 15:14:54 -0400: 2009-06-22 15:14:57 -0400: Incorrect owner flags for directory hard link (id = 7746623)
2009-06-22 15:14:59 -0400: 2009-06-22 15:15:00 -0400: 2009-06-22 15:15:02 -0400: (It should be 0x2 instead of 0x0)
2009-06-22 15:20:35 -0400: Checking volume bitmap.
2009-06-22 15:20:37 -0400: Checking volume information.
2009-06-22 15:20:39 -0400: 2009-06-22 15:20:41 -0400: The volume Backup needs to be repaired.
2009-06-22 15:20:43 -0400: Error: Filesystem verify or repair failed.2009-06-22 15:20:44 -0400:
2009-06-22 15:20:44 -0400: Disk Utility stopped verifying “Backup” because the following error was encountered:
Filesystem verify or repair failed.
At that point the whole system was extremely sluggish, and the access light on the backup disk was flashing steadily. The pmTool process seemed to be running away, but the system wasn't responsive enough for me to do much about it, so I held down the power button to shutdown. Upon the 2nd restart the system booted and seems to be OK, but I'm leery of running another Verify Disk.
What's going on? Are those errors anything to worry about? Is it possible to run Verify Disk on a Time Machine backup disk? What about Repair Disk?

John Seal wrote:
2009-06-22 15:20:43 -0400: Error: Filesystem verify or repair failed.2009-06-22 15:20:44 -0400:
2009-06-22 15:20:44 -0400: Disk Utility stopped verifying “Backup” because the following error was encountered:
Filesystem verify or repair failed.
At that point the whole system was extremely sluggish, and the access light on the backup disk was flashing steadily. The pmTool process seemed to be running away, but the system wasn't responsive enough for me to do much about it, so I held down the power button to shutdown.
Any time Disk Utility says you need to repair a disk, you need to repair it. Period.
So run it. If it fails to repair everything, run it again (and again) until it either repairs everything or can't repair any more. If it can't repair it, post back and we'll discuss options.
There's no point in running +Verify Disk+ on an external drive; just run +Repair Disk.+ The only time +Verify Disk+ is needed is for your internal HD (because you can't repair the disk you're running from).
And you need to do that again because of the forced power-down. Any time there's an abnormal shutdown, it's possible the file system on your internal HD can be damaged. Usually it isn't, but it's possible. If that says you need to repair it, you'll have to boot from your Leopard Install disc and use it's copy of DU. Post back if you need to do this but don't know how.

Time Machine "Backup Disk Not Available" over WAN

I have port forwarded port 46 (TCP and UDP) to port 548 a Mac mini server running Mac OS X 10.6.8, and I have Time Machine backup disk on it set as a share point with Time Machine support enabled. On my Mac Pro running OS X 10.8.5, I am able to connect via AFP to my server with the address "afp://my-ip-address:46" and can read and write on the backup disk share point. I tested that, and it works. When I am on the same LAN as the server, I can use that disk for Time Machine and have been doing so for years. However, I cannot do a Time Machine backup to that share point over the WAN. When I open Time Machine preferences, I can select the share point as my backup disk, but once I start the backup, it says "Backup disk not available" and fails to start. How could I fix this problem?
In case you're wondering, I forward port 46 to port 548 instead of port 548 to port 548 to minimize hacking attempts. Last time I used a default port, a computer in Taiwan started spamming SSH authentication failures.

I did find this article via Google
<http://www.macgurulounge.com/make-time-machine-remotely-back-up-to-your-time-cap sule/>
Personally, I use CrashPlan (free option using my own disks) to backup over the internet. It works very well when I'm away from home. Everything is encrypted.

Time Machine Backup Disk Encryption Password

I use a partitioned external drive to backup my stuff. Had enabled encryption option for the Time Machine backup disk and forgot the same. Can not find an entry in Keychain, any inputs on how to retrieve the password or unlock the particular partition?

Thanks for your reply. Call me stupid, but I had set-up the encryption in August and didn't use the back-up since then. Even though hint is visible, it doesn't help.

HT201250 My MacBook Pro (using OSX 10.7.5) suddenly can't find the Time Machine backup disk, which is on the harddrive of my desktop iMac. What to do?

My MacBook Pro (using OSX 10.7.5) suddenly can't find the Time Machine backup disk, which is on the harddrive of my desktop iMac. What to do?

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How do I manually erase my Time Machine backup disk?

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