Time Machine still not recommended for Aperture?

Is Time Machine still not recommended for the lastest version of Aperture (1.5.6)?
This support article ( http://docs.info.apple.com/article.html?artnum=306853 ) does not clarify.
Thanks for the advice!

Is Time Machine still not recommended for the lastest version of Aperture (1.5.6)?
Yes, it still isn't recommended.
(28832)

Similar Messages

  • Time Machine is not working for me

    There is no way that Time Machine is working right for me. Backups are taking a split second and are reporting crazy small amounts. Example, I have added to my Mac 1 gig of movies and 1 gig of images. I backed up today and Time Machine reported 28k of material being backed up and it took less than 1 second to start and finish the backup. None of these files are in areas that Time Machine has been told to not back up.
    How do I get Time Machine to work again? Please help me. TIA.

    Agreed. This particular glitch doesn't affect a lot of users, apparenly, and Apple is aware of it and hopefully it will be fixed soon.
    I've learned over the years (mostly the hard way, of course ), never to trust my backups to a single app or piece of hardware: no app is perfect, and all hardware fails, sooner or later.
    Like many here, I keep both full Time Machine backups, plus a "bootable clone" on a separate external HD. I use CarbonCopyCloner, many use the similar SuperDuper. That gives me the best of both types of backups, plus of course a completely separate, independent backup.
    CCC is donationware; SD has a free version, but you need the paid one (about $30) to do updates instead of full replacements, or scheduling. Either is easily found via Google.
    And/or, see Kappy's post on Basic Backup, complete with links to the web sites of each product.
    ps: glad it's sorted out, and thanks for the star.
    Message was edited by: Pondini

  • (Non-Time Machine) backup software recommendations for Snow Leopard

    I have been a long time user of Retrospect Desktop backup software, up to and including version 6.1. It has saved my skin at least twice when I've had catastrophic hard drive failures. I've been using 6.1 successfully in Leopard, under Rosetta. However, as I prepare to upgrade to Snow Leopard, I discovered Retrospect 6.1 will incompatible. According to Roxio:
    +Snow Leopard stores some files, including some applications and all files in the /System/ directory, in a compressed format. Retrospect can only restore files in their uncompressed format. This means that a complete OS restore will require an additional 4-5 GB of available storage space on the destination. When /System/ files are restored uncompressed, the Mac OS X may complain about certain files, such as fonts and kernel extensions, not being installed properly.+
    Naturally I thought about upgrading to Retrospect 8, which is supposed to be compatible with Snow Leopard, until I read the disaster stories of bug-ridden unfinished Retrospect 8.0 software being released as golden master without a manual. These inexcusable problems persisted through 8.0 and 8.1. Version 8.2 is in beta and addresses restoring from previous version backups and PowerPC compatibility, but it remains to be seen if Roxio will salvage Retrospect and return it to a position of respectability. (Too bad EMC bought Dantz years ago.)
    In any case, I'm now looking for other backup software. I need software that does incremental backups, can restore the system to a previous state existing at the time of a given previous (not necessarily most recent) backup, and supports user-defined rules for file inclusion/exclusion, as well as automated scripts. Automatic verification of the backup by comparing original files to the backed-up version (like in Retrospect) is nice, though probably unnecessary most of the time. Time Machine is nice but in my experience doesn't support some of these features and I'm not entirely comfortable relying on Time Machine alone because I've encountered some problems in the past where my backups were lost.
    I'm considering Carbon Copy Cloner, but not sure it does true incremental backups and can restore the system to a state that existed at the time of a previous -- rather than most recent -- backup. Also considering Intego's Personal Backup and ProSoft's Data Backup 3.
    I would love to hear any recommendations you might offer regarding these or any other backup software solutions.
    Thanks.
    Message was edited by: Anthony M Kassir MD

    In any case, I'm now looking for other backup software. I need software that does incremental backups, can restore the system to a previous state existing at the time of a given previous (not necessarily most recent) backup, and supports user-defined rules for file inclusion/exclusion, as well as automated scripts.
    Time Machine can do all that except the scripts - I'm not sure what you're wanting to script - and it doesn't have rules for exclusion, but does let you exclude any items you specify. From the sounds of it, though, you're trying to make your backups more complex than they need to be. Keep it simple and there's less chance for something to go wrong.
    I'm not entirely comfortable relying on Time Machine alone because I've encountered some problems in the past where my backups were lost.
    You shouldn't be comfortable relying on any single backup program. Backup software is still software, and as such can have bugs and suffer failures. For optimum safety, you should use two different backup programs to maintain a minimum of two separate backups.
    I'm considering Carbon Copy Cloner, but not sure it does true incremental backups and can restore the system to a state that existed at the time of a previous
    CCC does do incremental backups, but restoring to a specific state might not be entirely possible. When a file is added, it is simply added to the clone when CCC runs its next backup. There's no way to know which files were added when, AFAIK. When a file is removed, it is moved from its old location in the clone to an identical path inside a dated folder in the same location as the clone.
    Personally, I rely on a combination of TM and CCC. I keep one backup with TM, which lets me go back to any time I want. I also keep several CCC clones of just my user folder (everything else is easy enough to recreate if necessary), with one of them in the safe deposit box at the bank at all times.

  • 5 days, Time Machine Still not working.

    Hi, I've been posting in the following thread:
    http://discussions.apple.com/message.jspa?messageID=7537422#7537422
    But it hasn't gone anywhere. If anyone from Apple could respond to this issue I would really appreciated it.
    I have my MBpro17 plugged in to my fw800 time machine drive (LaCie big disk 500 gig) the drive mounted and time machine started to do it's thing, and then after about 2 min I get a message stating time machine backup failed with NO supporting detail about the error message.
    I looked in the console log at the time of the error and it shows this (see below). BTW I've also tried deleting the files that it appears to be choking on, and it still doesn't work.
    I'm not the only person having this issue. It shows up throughout this forum. but there seems to be NO solution so far, and NO response from any apple employees that I've been able to find.
    Hello? Apple support? Help!
    7/11/08 9:07:15 AM /System/Library/CoreServices/backupd[4058] Stopping backup.
    7/11/08 9:07:15 AM /System/Library/CoreServices/backupd[4058] Error: (-36) copying /Users/robgarrott/Music/iTunes/iTunes Music/Podcasts/Warm-Ups/Fingerstyle Warm-Up Part 3.mov to (null)
    7/11/08 9:07:16 AM /System/Library/CoreServices/backupd[4058] Copied 11104 files (3.0 GB) from volume Macintosh HD Laptop.
    7/11/08 9:07:16 AM /System/Library/CoreServices/backupd[4058] Copy stage failed with error:11
    7/11/08 9:07:16 AM /System/Library/CoreServices/backupd[4058] Backup failed with error: 11

    this is strictly a user-to-user forum. apple reps never post here.
    your posts in the other thread mention that you've tried "back up now" option and it didn't work.
    I would try deleting a few most recent backups in the TM and trying again. start TM, scroll to the backup time you want to delete, click on the "gear" action button in finder's toolbar and select 'delete backup". also go to the TM drive in finder and look in backups.backupdb->name-of-your-computer folder. If you see a failed-backup folder, delete it by hand.
    If nothing works I would suggest reformatting your TM drive using the partition tab in disk utility. make sure that the partition scheme is set to GUID partition table and the drive format to Mac OS extended journaled. Once the drive is reformatted start TM backups from scratch.

  • Time Machine Still Not Deleting Old Backups and Hence Running Out of Space

    ... and this with a 1TB external drive there just for this purpose.
    You'd have thought they'd have fixed this by now as it's an old issue.

    Hi Richard, thanks for the messages. How much disk space is used up on your MacintoshHD? I ask because if you for example have around 850GB of MacintoshHD used, TM would only be able to keep one full backup on the 1TB external drive. All of the other backups will be smaller, incremental backups. When TM needs more space, it can only delete the oldest incremental backups, as the full backup is needed in case of a complete restore. If, at some time in the past, another couple of hundred GB were needing to be incrementally backed up, then the 1TB external drive will not have the space, and your messages seem to bear out this scenario. Since the first occurrence of the failure, the amount of data requiring backup would be increasing by a small amount each week.
    Even if the very first full backup on the TM drive was of a small MacintoshHD (say, from just after installation), you might have hundreds of GB of music or pics or movies etc. These files would have been part of a later incremental backup, but, if they never change again, they're never backed up again. This also means that, there being only one copy of these files on the TM drive, they will never be deleted to make space for more backups. This could be an explanation of why, in your log messages, you see so little data actually deleted when it tries to make space; you may not have many files that change often.
    By way of comparison, my full backup is only 27GB As all my data, music, etc are stored on a network drive, and my incremental backups are of the order of hundreds of KB rather than hundreds of GB. Because my network drives are fault tolerant, I only need to use TM to backup my MacintoshHD and the TM drive is therefore set at only 256GB.
    It seems the only two solutions would be:
    1. Move movies, music etc. to another drive or, more sensibly,
    2. Get at least a 2 TB external drive for TM to use. I seem to remember that there is advice out there to have a TM drive of at least double the size of your total data size that needs to be backed up. Mine is overkill at a ratio of ten times the size, but you get the idea.
    if, on the other hand, you only have 50GB of disk space used up on MacintoshHD, then there must be more than one full backup of it on the TM drive. In this case, if you are prepared to, you can start the TM drive from scratch by deleting its files or reformatting it. This would make TM take a full backup of the MacintoshHD as it currently stands and then the 1 TB drive will have plenty of room for incremental backups again. The down side is that you would lose any past versions of changed files; this point in time is the furthest back you can go to from then on.
    I hope this helps and I'd love to know the outcome.

  • Time Machine will not delete.

    Greetings.
    The problem I'm having is that my 300GB backup disk is full. Time Machine says there is not enough room and it will not delete old backups to make room. How can I get it to do its thing?
    Thank you.

    dmac,
    This might help...
    *_“This Backup is Too Large for the Backup Volume”_*
    First, much depends on the size of your Mac’s internal hard disk, the quantity of data it contains, and the size of the hard disk designated for Time Machine backups. It is recommended that any hard disk designated for Time Machine backups be +at least+ twice as large as the hard disk it is backing up from. You see, the more space it has to grow, the greater the history it can preserve.
    *Disk Management*
    Time Machine is designed to use the space it is given as economically as possible. When backups reach the limit of expansion, Time Machine will begin to delete old backups to make way for newer data. The less space you provide for backups the sooner older data will be discarded. [http://docs.info.apple.com/article.html?path=Mac/10.5/en/15137.html]
    However, Time Machine will only delete what it considers “expired”. Within the Console Logs this process is referred to as “thinning”. It appears that many of these “expired” backups are deleted when hourly backups are consolidated into daily backups and daily backups are consolidated into weekly backups. This consolidation takes place once hourly backups reach 24 hours old and daily backups reach about 30 days old. Weekly backups will only be deleted, or ‘thinned’, once the backup drive nears full capacity.
    One thing seems for sure, though; If a new incremental backup happens to be larger than what Time Machine currently considers “expired” then you will get the message “This backup is too large for the backup volume.” In other words, Time Machine believes it would have to sacrifice to much to accommodate the latest incremental backup. This is probably why Time Machine always overestimates incremental backups by 2 to 10 times the actual size of the data currently being backed up. Within the Console logs this is referred to as “padding”. This is so that backup files never actually reach the physically limits of the backup disk itself.
    There appears to be a method for getting around this that may work for some. Bear in mind that it will involve deleting older backups that Time Machine does not yet consider “expired”. But it should allow you to complete the current backup attempt while at the same time preserving some of the previous backups. It is fitting, as well, to remind users that backup disks should be +at least+ twice as large as your Macs’ internal hard disk.
    The Time Machine error message tells you how much space the current backup requires.
    Using that measurement, go into the Time Machine Preferences and click “Options…”.
    Now using the Exclusion List, begin adding things like System & Library folders, and anything else that will get the “Total Included…” figure down to the amount that Time Machine reported was necessary. Leave your User folder for last. If it is still not enough, you can begin including folder within your Home folder.
    Once the “Total Included…” is below what Time Machine requires, then perform a backup. During the backup, Time Machine perform certain house-keeping duties that frees up additional space.
    Once the backup is complete, check Time Machine Prefs “Available:” line. You may discover that you now have more room than expected.
    Go back to the Exclusion List and begin removing items until the “Total Included…” is again just under what “Available” states.
    Perform another backup. Again more room may become available. You may have to repeat this procedure several time until a backup includes ALL of your desired files.
    *Backups WAY Too Large*
    If an initial full backup or a subsequent incremental backup is tens or hundreds of Gigs larger than expected, check to see that all unwanted external hard disks are still excluded from Time Machine backups. Time Machine will attempt to backup any hard disk attached to your Mac, including secondary internal drives, that have not been added to Time Machines Exclusion list.
    This includes the Time Machine backup drive ITSELF. Normally, Time Machine is set to exclude itself by default. But on rare occasions it can forget. When your backup begins, Time Machine mounts the backup on your desktop. (For Time Capsule users it appears as a white drive icon labeled something like “Backup of (your computer)”.) If, while it is mounted, it does not show up in the Time Machine Prefs “Do not back up” list, then Time Machine will attempt to back ITSELF up. If it is not listed while the drive is mounted, then you need to add it to the list.
    *Recovering Backup Space*
    If you have discovered that large unwanted files have been backed up, you can use the Time Machine “time travel” interface to recovered some of that space. Do NOT, however, delete files from a Time Machine backup disk by manually mounting the disk and dragging files to the trash. You can damage or destroy your original backups by this means.
    Additionally, deleting files you no longer wish to keep on your Mac does not immediately remove such files from Time Machine backups. Once data has been removed from your Macs' hard disk it will remain in backups for some time until Time Machine determines that it has "expired". That's one of its’ benefits - it retains data you may have unintentionally deleted. But eventually that data is expunged. If, however, you need to remove backed up files immediately, do this:
    Launch Time Machine from the Dock icon.
    Initially, you are presented with a window labeled “Today (Now)”. This window represents the state of your Mac as it exists now. +DO NOT+ delete or make changes to files while you see “Today (Now)” at the bottom of the screen. Otherwise, you will be deleting files that exist "today" - not yesterday or last week.
    Click on the window just behind “Today (Now)”. This represents the last successful backup and should display the date and time of this backup at the bottom of the screen.
    Now, navigate to where the unwanted file resides. If it has been some time since you deleted the file from your Mac, you may need to go farther back in time to see the unwanted file. In that case, use the time scale on the right to choose a date prior to when you actually deleted the file from your Mac.
    Highlight the file and click the Actions menu (Gear icon) from the toolbar.
    Select “Delete all backups of <this file>”.
    *Full Backup After Hardware Change/Replacement*
    If you are running out of disk space sooner than expected it may be that Time Machine is ignoring previous backups and is trying to perform another full backup of your system? This will happen if you have replaced your computer with a new one, or had significant repair work done on your existing Mac. Time Machine will perform a new full backup. This is normal.
    You have several options if Time Machine is unable to perform the new full backup:
    A. Delete the old backups, and let Time Machine begin a fresh.
    B. Attach another external hard disk and begin backups there, while keeping this current hard disk. After you are satisfied with the new backup set, you can later reformat the old hard disk and use it for other storage.
    C. Ctrl-Click the Time Machine Dock icon and select "Browse Other Time Machine disks...". Then select the old backup set. Navigate to files/folders you don't really need backups of and go up to the Action menu ("Gear" icon) and select "Delete all backups of this file." If you delete enough useless stuff, you may be able to free up enough space for the new backup to take place. However, this method is not assured as it may not free up enough "contiguous space" for the new backup to take place.
    *Outgrown Your Backup Disk?*
    On the other hand, your computers drive contents may very well have outgrown the capacity of the Time Machine backup disk. It may be time to purchase a larger capacity hard drive for Time Machine backups. Alternatively, you can begin using the Time Machine Preferences exclusion list to prevent Time Machine from backing up unneeded files/folders.
    Consider as well: Do you really need ALL that data on your primary hard disk? It sounds like you might need to Archive to a different hard disk anything that's is not of immediate importance. You see, Time Machine is not designed for archiving purposes, just as a backup of your local drive(s). In the event of disaster, it can get your system back to its' current state without having to reinstall everything. But if you need LONG TERM storage, then you need another drive that is removed from your normal everyday working environment.
    This KB article discusses this scenario with some suggestions including Archiving the old backups and starting fresh [http://docs.info.apple.com/article.html?path=Mac/10.5/en/15137.html]
    Let us know if this clarifies things.
    Cheers!

  • How can I get my time machine to allow me to recover files again? After upgrading to OS X, the time machine still backs up the files; but, I'm not able to navigate within the time machine or select any folders or files for restore.

    How can I get my time machine to allow me to recover files again?
    After upgrading MBA to OS X, the time machine still backs up the files; but, I'm not able to navigate within the time machine or select any folders or files for restore.
    I've searched and can not find a solution to the problem that's being encountered.

    Yeap that all makes sense now.
    Do you only have the current backup showing in the TM display?? Won't it fill in the rest?
    Over wireless are you waiting for the indexing to finish.. ??
    Previous backup may not show for a couple of hours.
    Long short of it.. Mavericks version of TM is a pain.
    Sometimes it is easier to completely ignore the TM backup and do the restore manually.
    I have posted the details here. See if this helps.
    Can't access old files on time capsule

  • HT201250 Can I include external drives to be backed up using Time Machine.  Not only do I want to back up my IMac, but I have several extenal drives for one iPhoto, one iTunes and one for other files & documents.

    Can I include external drives to be backed up using Time Machine?  Not only do I want to back up my IMac, but I have several extenal drives for one iPhoto, one iTunes and one for other files & documents.  How do I know if they are included in the backup process?

    Yes, if they are not exclude then TM backs them up.
    Allan

  • HT3275 For the past several days, I have been getting this message during backups: Time Machine could not complete the back up.  The backup disk image "Volumes/Data/iMac.sparsebundle" could not be accessed (error-1).

    For the past several days, I have been getting this message during backups:
    Time Machine could not complete the back up.  The backup disk image "Volumes/Data/bhoppy2's iMac.sparsebundle" could not be accessed (error-1).  When I click on the 'help' icon on the message, it reverts to a blank page, and I cannot find anything online regarding the term 'sparsebundle.'  In addition, I cannot access previous backups any longer. 
    Help?

    See C17 in Time Machine Troubleshooting by Time Machine guru Pondini:
    http://pondini.org/TM/Troubleshooting.html

  • After install of Lion, secondary internal hard drive used for backup and time machine is not showing on the desktop.

    After an install of Lion, my secondary internal hard drive used for backup and time machine is not showing on the desktop. Cannot be located with Disk Utility either. Contains vital files! please help...

    I have a TB internal drive, but this is what it shows for memory slots:
    Memory Slots:
      ECC:    Enabled
    DIMM Riser B/DIMM 1:
      Size:    2 GB
      Type:    DDR2 FB-DIMM
      Speed:    800 MHz
      Status:    OK
      Manufacturer:    0x0000
      Part Number:    0x000000463732353642363145353830304600
      Serial Number:    0x00000000
    DIMM Riser B/DIMM 2:
      Size:    2 GB
      Type:    DDR2 FB-DIMM
      Speed:    800 MHz
      Status:    OK
      Manufacturer:    0x0000
      Part Number:    0x000000463732353642363145353830304600
      Serial Number:    0x00000000
    DIMM Riser A/DIMM 1:
      Size:    1 GB
      Type:    DDR2 FB-DIMM
      Speed:    800 MHz
      Status:    OK
      Manufacturer:    0x80AD
      Part Number:    0x48594D5035313241373243503844332D5335
      Serial Number:    0x42076007
    DIMM Riser A/DIMM 2:
      Size:    1 GB
      Type:    DDR2 FB-DIMM
      Speed:    800 MHz
      Status:    OK
      Manufacturer:    0x80AD
      Part Number:    0x48594D5035313241373243503844332D5335
      Serial Number:    0x4207631E
    DIMM Riser B/DIMM 3:
      Size:    Empty
      Type:    Empty
      Speed:    Empty
      Status:    Empty
      Manufacturer:    Empty
      Part Number:    Empty
      Serial Number:    Empty
    DIMM Riser B/DIMM 4:
      Size:    Empty
      Type:    Empty
      Speed:    Empty
      Status:    Empty
      Manufacturer:    Empty
      Part Number:    Empty
      Serial Number:    Empty
    DIMM Riser A/DIMM 3:
      Size:    Empty
      Type:    Empty
      Speed:    Empty
      Status:    Empty
      Manufacturer:    Empty
      Part Number:    Empty
      Serial Number:    Empty
    DIMM Riser A/DIMM 4:
      Size:    Empty
      Type:    Empty
      Speed:    Empty
      Status:    Empty
      Manufacturer:    Empty
      Part Number:    Empty
      Serial Number:    Empty

  • The message I get is: Time Machine could not complete the backup. This backup is too large for the backup disk. The backup requires 111.27 GB but only 42.1 GB are available.

    I have a problem with my Time Capsule.  The message I get is: Time Machine could not complete the backup. This backup is too large for the backup disk. The backup requires 111.27 GB but only 42.1 GB are available. As a result, my backups are no longer running. My umderstanding was that the Time Capsule would automatically delete old backups to make space. Can anyone help me figure out how to get my backups to run again?

    If you have more than one user account, these instructions must be carried out as an administrator.
    Launch the Console application in any of the following ways:
    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
    ☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
    ☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
    Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
    View ▹ Show Log List
    from the menu bar.
    Enter the word "Starting" (without the quotes) in the String Matching text field. You should now see log messages with the words "Starting * backup," where * represents any of the words "automatic," "manual," or "standard." Note the timestamp of the last such message. Clear the text field and scroll back in the log to that time. Select the messages timestamped from then until the end of the backup, or the end of the log if that's not clear. Copy them (command-C) to the Clipboard. Paste (command-V) into a reply to this message.
    If there are runs of repeated messages, post only one example of each. Don't post many repetitions of the same message.
    When posting a log extract, be selective. Don't post more than is requested.
    Please do not indiscriminately dump thousands of lines from the log into this discussion.
    Some personal information, such as the names of your files, may be included — anonymize before posting.

  • I recently bought iphone6, My imessage and face time is not working and still it charged me for normal text message multiple times and still not able to authorise the usage. Let me know how I can start using the same.

    I recently bought iphone6, My imessage and face time is not working and still it charged me for normal text message multiple times and still not able to authorise the usage. Let me know how I can start using the same.

    Hello vinay34,
    If you are having issues with activating your Apple ID for FaceTime and iMessage, then take a look at the article below to get it sorted out. Make sure that you have the Date and Time set to Automatic as well as any other steps listed in the article. 
    iOS: Troubleshooting FaceTime and iMessage activation
    http://support.apple.com/en-us/ts4268
    Regards,
    -Norm G. 

  • My time machine will not back up. It says backup failed each time i try to back up. I tried switching it off but still nothing. It says "already in use" Please help!

    My time machine will not back up. It says backup failed each time i try to back up. I tried switching it off but still nothing. It says "already in use" Please help!

    The late James Pond left us these wonderful illustrated guides, including this one:
    Time Machine - Troubleshooting
    C12. "The Backup disk image ... sparsebundle ... is already in use."

  • HT201250 Time machine does not recognize WD external drive

    Time machine and back-ups worked fine on my MacBookPro. It stopped working, no I believe it is still working but the MackBookPro does not recognize it and when clicking "Back up" I receive the message that the external drive is not available. Thanks to Bootcamp the computer also has a Windows side which I use mainly to run a soaring flight simulator called Condor. When I turn on the MacBookPro and click on "Choice" the window I receive shows the Mac and Windows operating systems, the Back-up and "My Passport." When I click on "My passport" it actually opens...When I turn the computer off and reboot it again there is no sign of "My Passport."
    Now, I have a second WD My Passport which I bought for the Windows side of the computer. When I attach it before turning on the computer, I shows up on Finder, however, when I click "Back up" here it seems like it is starting back-up but only for a few seconds and then I get the message that the drive is a Windows formatted drive and that a back-up cannot be completed.
    Why does the Windows formatted drive show up in Finder and also when I run the Windows side, however, the driver for the Mac does not show up on Finder?
    I now have only the Mac formatted external drive attached and I just received the following messages: Can't back up. Reformat the disk. Files can still be read but the drive can no longer be used for back-ups. Get a new external drive. Run back-ups as soon as possible.
    Can anyone help?
    Thank you.

    OK, so it sounds like you have a Mac formatted drive that you have used previously for Time Machine, and disconnected it for a few weeks, and you can now see files on it OK from your Mac. However, when the system tries to run a Time Machine backup, you get an error message "Can't backup. Reformat the disk. Files can still be read but the drive can no longer be used for back-ups. Get a new external drive. Run back-ups as soon as possible."
    I have not seen this problem before, and would recommend that you look through the Time Machine troubleshooting information at http://pondini.org/TM/Home.html
    For instance, http://pondini.org/TM/B1.html or http://pondini.org/TM/B6.html could help in your situation.  I'm assuming (but probably shouldn't) that you've verified that your hard drive doesn't need repair (another Disk Utility function) and that there is still a Time Machine backup on that drive - look for the directory Backups.backupdb.
    I hope that helps.  If not, perhaps someone with more Time Machine knowledge will pop along soon to help you further.

  • Time machine was not working.  I bought a new time machine and migrated time machine files to new time capsule; not recognized by yosemite

    Time machine was not working after yosemite upgrade on new and old MacBooks in my house.  I bought a new time machine and migrated time machine files to new time capsule. I changed the names of the older sparse bundles to the default values.  Yosemite still does not recognize them. 

    I presume the bought a time machine means a time capsule.
    How did you migrate the Time Machine files?
    From where? A Time Capsule or external drive?
    It is difficult to get TM working with Yosemite.. since it doesn't work after the upgrade on the old TM backup.. it will not work on the migrated files either.
    You simply start a new backup and store the old backups for a few months until you are ready to dump them.
    The instructions for inheriting old backups is B5 and B6 here.
    http://pondini.org/TM/Troubleshooting.html
    However it is just unlikely to work.. TM in Yosemite is very different. Broken even.
    I also strongly recommend people to use Carbon Copy Cloner or some other 3rd party backup until Apple get the bugs fixed. And after several months.. they are still rampant.

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