OS X V10.7 Lion :: Identity Of The Backup Disk Has Changed On External HD Time Machine Backup
Apr 30, 2012
I have a external HD which has always worked fine under snow leopard. Since upgrading to lion I keep getting the following message The identity of the backup disk has changed since the previous backup.The disk may have been replaced or erased, or someone may be trying to trick your computer into backing up to the wrong disk. And after this the drive disappears from the desktop appearing agian only after restart. What can I do do rectify this? Delete and re-intialise the drive?
Info:
MacProQuad2.6 4gbRam, Mac OS X (10.4.8)
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Feb 10, 2012
my TM wil not back up! It states that this backup is too large for the backup disk. The back up disk requires 573.50 GB but only 225.23 GB are available. The TM needs work space on the backup disk, in addition to the space required to store backups. Upen TM perferences to select a LARGER backup disk or make the backup smaller by excluding file.Â
Okay I;m sorry but obvioulsy I dont get this. I've never called Apple for help! I have every product they sell practically including Protection Plans I never used and no one will help me with this. My MAC is starting to have black or white screens and i can hear it running but it will not do anything so i have to reboot it, it screws up Enturage and then I have to rebuild that ( 5 times this year) anyway... I would like to back everything up- can I delete everything on the Time Capsule or Time Machine; god I dont even know what it is called Im so MAD... help if you can please. I'm going to have to take this to the genius people at the store and probably buy another computer but like before they will not save my files.
Info:
Mac OS X (10.7.3), time cap or Time Machine
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May 1, 2008
I was a PC user who recently moved to mac. I have a macbook (intel 2.2GHz, 2GB RAM, 250GB HDD). When I was using PC, I backed up all my data to a network storage device (Buffalo LinkStation 250 GB connected to a 802.11g netgear router which is supplied by Sky) using a program called SmartSync Pro, which worked very well. Although I can connect to and mount the Share folder on this drive when the macbook is connected to the network, Time Machine will not back up to it. It wouldnt even recognise the disk on the network.
So I went onto the trusty internet, and found that you can get time machine to recognise the Share folder. (This was obtained from: http://blog.imulus.com/george/software/using-leopard-time-machine-to-backup-of-a-network/)See my comment on their page at the bottom, number 66.
It recommended entering the following in to the Terminal: defaults write com.apple.systempreferences TMShowUnsupportedNetworkVolumes 1
Before attempting backup I have to go into "Network" and select the Share folder by double clicking on it. This seems to mount the volume. After this, it can be seen in Time Machine as a potential backup destination.
However, this method does not work for me. Time Machine "prepares" for a while, then gives the following message: Time Machine error. The backup disk image could not be created.
More internet searching took me to macosxhints which suggests creating something called a sparsebundle image on my local system. (http://www.macosxhints.com/article.php?story=20080420211034137) Have not tried this yet as I thought it would be prudent to seek some help first.
Apple have deliberately disabled the ability for Time Machine to back up to network attached storage, (except of course to their proprietory Time Capsule):
Is this because time machine requires a network faster than 802.11g?
Is this because a time machine backup to a network attached storage device is unreliable and the data is corrupted?
I dont want to shell out more cash for a time capsule. I would prefer not to have to hardwire to an external drive (which I will also have to go out and buy). Any thoughts?
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Mar 17, 2012
I need to deploy multi iMac for my company with exact same setup.I am able to do this with the Time Machine without problem.But I would like to know is there a way to backup the "Time Machine" USB HDD I have created, just incase my USB HDD is corrupted or I need to distribut the Time Machines to other office for deployment? Can I create a dmg file with my existing Time Machine USB HDD. so that I can make multi copy of USB HDD with the same dmg by restoring the dmg?
Info:iMac
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Sep 12, 2014
Time Machine reported it failed backup due to the shortage of disk space. But I see the total space of partition is 192GB，the whole backup snapshot estimated is 177.56G.Â
The massage said that " failed backup, 52.85 GB is needed for backup but it's only 25.17 GB available." Â
I know it's 166.35GB of ancient snapshot still exist, but why not OSX to delete it automatically and release more space for new snapshot?Â
By the way, I can't delete those ancient snapshot in Finder manually, perhaps permission denied.
Info:
MacBook Pro (Retina, 13-inch, Late 2013), OS X Mavericks (10.9.4)
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Feb 17, 2012
My IMac keeps freezing on time machine finding backup disk, it selects it fine and authenticates, the ready nas pro drive works fine other than this nothing shown in logs and firmware up to date, used to work fine.
Info:
iMac, Mac OS X (10.7.3)
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Aug 25, 2014
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.
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.
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Jun 23, 2009
I recently changed MBPs and restored from Time Machine. Now I want to continue using the backup disk with about 6 months worth of backups on, but it wants to start again saying that there's not enough space for the initial backup. I can't see any way around this in the TM help, but I don't want to start afresh and delete all those old backups. Surely there's a way of making Time Machine think the computer is the old one?
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Apr 2, 2012
I have a 500GB HD in my mini. I have a 2TB drive with about 1TB of files on it. Can I use some of the free space for backup and still use the rest for files?
Info:
Mac mini, Mac OS X (10.7.3)
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Jul 1, 2012
My time machine disk keeps ejecting itself in the middle of a backup. I have to reinsert it several times before it completes a backup.Â
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Mar 17, 2012
I was using a 1TB drive for Time Machine; I've now upped it to a 3TB drive. The new drive is an exact copy of the old one. But when I try to do a Time Machine backup, it's been stuck in "Preparing Backup..." for over 12 hours.
Info:
Mac OS X (10.7.3), 2.5 GHZ Intel Core 2 Duo, 4 GB 667 MHz DDR2 SDRAM
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Mar 9, 2012
Is there a way to make a backup of your Time Machine backup on a 2nd hard drive? I want to be doubly sure that my data is backed up!Right now I get an error saying that the second hard drive isn't authorized to copy my Time Machine data from the original hard drive I have set up as my Time Machine.
Info:
iMac, Mac OS X (10.7.3)
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Oct 26, 2008
I am getting the following error from Time Machine when doing my first backup. The startup disk being backed up, and the TM disk are both the same size.
Macintosh HD: 465.44 (total); 393.99 (free); 71.45 (free)
Time Machine: 465.44 (total); 465.29 (free)
The Time Machine error is: Quote:
"This backup is too large for the backup volume. The backup requires 472.7 GB but only 465.3 GB are available." why would this be? Other disks are excluded from the backup, and Time Machine is telling me that it needs more space than it actually needs. What should I do?
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Mar 28, 2012
Is time machine already/still supported on current OSX 10.7, or is it already deprecated as it was introduced several releases ago? When I try to activate Time Machine on my all new OS X Server, I get a dialog "Choose destination volume for client Time Machine backups:". I choose a volume, and the message is displayed "This disk drive may not support Time Machine backup over the network. Get more information about compatible drives."
"More information" links to [URL] which just provides commonplace advice to not disconnect drives while the drive is in operation. The support article is marked as archived and no longer updated after 10.5. The promised information is not provided. Is there anything obviously wrong with the setup?
Mac Mini Server, OS X Lion 10.7.3, 2x750 internal disks as RAID1, new of this month
External drive: 3TB USB3 Maxtor, single partition (repartitioned for GUID), connected via one of the internal USB2
The external drive is also used as Time Machine for the Server's local volume. I have read recommendations to use separate partitions per client, for time machine solutions using a third party NAS. Instead I chose the original - am I wrong to assume that the OS X Server's Time Machine service is able to manage multiple clients?
Info:
Mac mini, Mac OS X (10.7.3)
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Apr 17, 2012
What if a Time Machine backup was created on a Mac with a large hard disk, e.g. 500GB iMac - and I buy a new MacBook Air with a small SSD hard disk e.g 128GB. What happens when I need to use the larger Time Machine file to set up the new MacBook Air? What happens to all those files that can't fit on the smaller SSD drive?
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Jan 5, 2010
Tonight I followed the instructions someone had posted to this forum (and lots of other places online) to run the following in Terminal:
sudo defaults write /System/Library/LaunchDaemons/com.apple.backupd-auto StartInterval -int 86400
Then I logged out and then logged back in again to reload.
This is supposed to change the Time Machine backup interval from 1 hour to once every 24 hours.
Maybe it does, but I noticed something weird: every time I load up Time Machine Preferences from the menu bar, the time to "Next Backup" changes by subtracting 1 hour or so from its previous value just a few minutes ago when I checked.
If I check again immediately, it is the same (e.g. Today, 9:20pm) but if I wait awhile and load it again, it changes to something like "Today, 8:20pm"
Not sure what's going on here and can anyone offer any comments if I even executed this command correctly in the first place?
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Jun 6, 2010
Basically, all the folders such as Applications on my time machine backup, have all suddenly converted themselves to 'UNIX EXECUTABLE FILES'.
I tried restoring from backup using my Snow Leopard disc, but it said 'No full Mac OS X backups were found'.
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Apr 27, 2012
I used my external hard drive to store important documents off of my previous Mac. None of these documents are on my new Mac. Will I lose these docs if Time Machine backs up to this external hard drive? Will Time Machine save over those docs?
Info:
iMac, Mac OS X (10.7.3)
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May 15, 2012
I am trying to get Time Machine to backup my external hard drive. I have the external drive formated as Mac OS Extended (journaled) and I have also removed the drive from the Excluded list.I put some 'test' files on the external drive and told TM to do a backup and when it is finished the only way I can see my external hard drive in TM is if it is connected to the computer. It doesn't seem to be backed up anywhere in TM that I can see.
Info:iMac
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May 29, 2012
from there I only need my mail messages and folders.Â
How do I go about getting them on another machine (not the one that did the Time Machine backups)?Â
Info:
Mac OS X (10.7.2)
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Apr 9, 2012
Moved all my movies audio etc and stored on external HDD, but as I have lion and time machine it saved a local back up so that when time machine was synced it didn't miss anything.Seems sensible, so next step was to sync time machine, expecting that the local back up would disappear when it shifted to TM. It didn't...why in gods green earth is the local back up there even though TM connected the whole time and up to date? Â I've restarted, loaded all updates and verified disk. How do I get to the "it just works" part without having to Delete this double up (32GB "backups") via terminal etc....
Info:
Mac Pro, Mac OS X (10.7.3)
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Feb 10, 2012
I noticed that Time Machine backs up the system ever so often. What happens if I disconnect the external hard drive I'm using as the back up and Time Machine tries to initiate a back up? Will it corrupt anything?
Info:
MacBook, Mac OS X (10.6.7), 2.16 GHz Intel Core 2 Duo
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Mar 19, 2012
I have a hard drive which is attached to my iMac 24*7. I plan to move all my movies & pictures over to it. Would the Time Machine backup (through a different hard drive) backup my Hard drive?
Info:
iMac (21.5-inch Late 2009), Mac OS X (10.7.3)
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Mar 30, 2012
I just installed a Lacie 1TB P'9231, with the instruction from Apple Tech Support.Â
Still my back ups are failing. I have 625MB available, but it says back up requires 45.3GB of space. What do I do?
Info:
iMac (27-inch Mid 2010), iOS 5.1
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Dec 11, 2009
I have looked into this a lot already. It is to much that Time Machine backs up every single hour! It would be nice to set it to something like 3 or 5 hours. I have tried a 3rd party app to do this, but... If my computer was off or asleep when it was supposed to back up, it would get an error. It would not just do the backup when i turned it on or when it came out of sleep like stock Time Machine does. I have also seen a way to change the time incraments in the Terminal.(I am very good with it, not a noob) I have tried this and it screws up time machine completely. Maybe it does not work with the newest OS X. By the way... I have a 2010 MacBook Pro, got it 2 months ago.
Does anyone know a solid 3rd party app, that will work seamlessly. Or has anyone changed the time in Terminal and are currently using something different than 1 hour. There is a lot of examples online, but I would like the codeing that you literally used.
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Mar 7, 2009
I want to use Time Machine, but I don't want to have all my data sitting in the open on an external drive that someone can just carry away. Can I make an encrypted disk image, and have Time Machine use that as the backup volume?
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Aug 18, 2009
I'm interested in replacing my 250GB HDD for a 80GB SSD. I want to use the old drive as a USB backup disk for Time Machine, but is 5400 RPM fast enough for this?
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Dec 4, 2008
I keep getting message "time machine is read only".....I check "get info" for time machine disk and it is set to "read-write"..Can't backup any files....even though there is 71gb free on disk..
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Dec 6, 2010
So I bought a brand new WD 1TB Elements (USB) to use with Time Machine. I've never used a Time Machine before. I have a MBP13 with a 250GB disk, using the latest Snow Leopard, all updates installed. Formatted the drive to Mac OS Journaled (extended) and set it to use with Time Machine. Works until about 15-17GBs is copied over, than it fails:
1. If I start over it fails very soon after, no matter how many times I retry
2. No matter how many times I reformat it, it always fails
3. I tried one trick I googled - deleting the "inprogress" file - does NOT help
4. SMART status is verified
5. There are no problems if I verify/repair the disk.
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Mar 16, 2008
I just bought MacBook Air yesterday (the 80GB version), and love it! It makes a nice companion to my MacBook Pro. I have now one problem. How do I get my Time Machine backup from my Firewire disk to the MacBook since MBA does not have a Firewire port?
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