hansia

Q: Time Machine - sparse bundle could not be accessed (error (null))

The backup disk image “/Volumes/ReadyNAS/My iMac.sparsebundle" could not be accessed (error (null)).

 

This problem started only after I upgraded from Snow Leopard to Maverick. Been searching for a solution online but none seems to work.

 

Anyone has any idea how to get TM to work again? Upgrading to Maverick is a huge mistake!

 

Help much appreciated! Thanks!!!

iMac, OS X Mavericks (10.9)

Posted on Dec 9, 2013 7:49 AM

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Q: Time Machine - sparse bundle could not be accessed (error (null))

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  • by johpo01,

    johpo01 johpo01 Dec 10, 2013 7:12 AM in response to hansia
    Level 1 (5 points)
    Dec 10, 2013 7:12 AM in response to hansia

    I have this issue as well. Struggled a couple of days to get TM to even connect to my ReadyNAS Duo. But after trying all sorts of things: Restarting NAS, Router, Upgrading firmware on NAS, Running Repar Disk on Sparsebundle, Reset of TM(deleting com.apple.TimeMachine.plist), Re-selecting Backup Disk, Restaring MAC etc.. I finally got to the stage where TM said "Preparing for Backup". But unfortunately after a while I got the messsage: "The backup disk image ".........sparsebundle" could not be accessed (error(null))".

     

    I should say that TM has been running fine for the past couple of years in my environment.

     

    I'm out of ideas. Anyone out there has some good ones?

  • by johpo01,

    johpo01 johpo01 Dec 10, 2013 10:43 AM in response to johpo01
    Level 1 (5 points)
    Dec 10, 2013 10:43 AM in response to johpo01

    Just to let you know. I've decided to start all over. Reset and initialize my ReadyNAS to factory default, customize it, resetting TM and then do a first full backup. So far so good. The backup has now started and will probably run for the next 15 hours or so.

  • by Donald Morgan,

    Donald Morgan Donald Morgan Dec 10, 2013 10:51 AM in response to hansia
    Level 6 (12,783 points)
    Dec 10, 2013 10:51 AM in response to hansia

    http://support.apple.com/kb/ht1427

    https://discussions.apple.com/docs/DOC-3105

    Bothwill help solve your issue. Be sure you read them carefully.

  • by Linc Davis,

    Linc Davis Linc Davis Dec 10, 2013 2:20 PM in response to hansia
    Level 10 (207,926 points)
    Applications
    Dec 10, 2013 2:20 PM in response to hansia
    Backing up to a third-party NAS with Time Machine is risky, and unacceptably risky if it's your only backup. I know this isn't the answer you want, and I also know that the manufacturer says the device will work with Time Machine, and that it usually seems to work. Except when you try to restore, and find that you can't.
      
    If you want network backup with Time Machine, use as the destination either an Apple Time Capsule or an external hard drive connected to another Mac or to an 802.11ac AirPort base station. Only the 802.11ac base stations support Time Machine, not any older model.
      
    If you're determined to keep using the NAS for backup, your only recourse for any problems that result is to the manufacturer (which will blame Apple.)
  • by johpo01,

    johpo01 johpo01 Dec 10, 2013 3:03 PM in response to Linc Davis
    Level 1 (5 points)
    Dec 10, 2013 3:03 PM in response to Linc Davis

    I don't know what say to other than this: If TM supports networking standards there should be absolutely no problems no matter which 3rd party product you're using. It all comes down to zero and ones.

     

    Apple cannot and should not support any 3rd party NAS products.

     

    It reminds of the "good old days" (i've been working with IT since 1972) where IBM would not support disk subsystems from any 3rd party vendors (they also claimed that it would be risky to store data on these disks). Everyone knows what happened:-) EMC and Hitachi are still in the disk business.

     

    BTW I see a lot of problems from people using Time Capsule as their backup device. So I don't think that would be my first choice.

     

    But thanks for your update.

  • by hansia,

    hansia hansia Dec 10, 2013 9:19 PM in response to Linc Davis
    Level 1 (0 points)
    Dec 10, 2013 9:19 PM in response to Linc Davis

    Am taking your advice. Back up to external HDD to avoid any more complications. Hopefully future patches to maverick will resolve the NAS problem. In the meantime it'd be an oversized paperweight

     

    Am waiting for 10.9.1 before attempting a factory reset on NAS and setting up TM again. Thanks everyone for your contribution!

  • by johpo01,

    johpo01 johpo01 Dec 11, 2013 8:24 AM in response to hansia
    Level 1 (5 points)
    Dec 11, 2013 8:24 AM in response to hansia

    FYI. My TimeMachine now works with my ReadyNAS Duo after I added a line to the /etc/hosts file: "192.168.1.13 NasDuo" and reselected the backup disk in TimeMachine. Hopefully it will continue to be that way

  • by hansia,

    hansia hansia Dec 19, 2013 7:06 AM in response to johpo01
    Level 1 (0 points)
    Dec 19, 2013 7:06 AM in response to johpo01

    Couldn't add this to hosts file. It's locked and I'm clueless with terminal...

     

    Did it the brute force way with a factory reset for Duo. It works now!

  • by johpo01,

    johpo01 johpo01 Dec 20, 2013 2:32 AM in response to hansia
    Level 1 (5 points)
    Dec 20, 2013 2:32 AM in response to hansia

    Great. FYI my ReadyNAS Duo is still working. Backup and restore. Like it should be

     

    BTW there are a number of entries in the forum regarding updating of the /etc/hosts file. I used "sudo nano /etc/hosts"

  • by Alf Megson,

    Alf Megson Alf Megson Jan 7, 2014 7:49 PM in response to johpo01
    Level 1 (105 points)
    iOS Apps
    Jan 7, 2014 7:49 PM in response to johpo01

    Is NASDuo your own choice of name? I'm just wondering if I should be putting something else there in the hosts file.

  • by Alf Megson,

    Alf Megson Alf Megson Jan 7, 2014 7:50 PM in response to hansia
    Level 1 (105 points)
    iOS Apps
    Jan 7, 2014 7:50 PM in response to hansia

    Drag it onto your desktop - it will make a copy of itself.

     

    Open with text edit.

     

    Delete original - you will be asked for your passwod.

     

    Drag edited copy to /etc/ folder - you will be asked for your password.

     

    Done.

  • by johpo01,

    johpo01 johpo01 Jan 8, 2014 3:21 AM in response to Alf Megson
    Level 1 (5 points)
    Jan 8, 2014 3:21 AM in response to Alf Megson

    NasDuo is the default hostname in my ReadyNAS Duo, but it can be changed in the configuration (network-global settings). BTW my ReadyNAS Duo is still working as expected.

  • by chappa-ai,

    chappa-ai chappa-ai Jun 1, 2014 11:05 AM in response to Donald Morgan
    Level 1 (0 points)
    Jun 1, 2014 11:05 AM in response to Donald Morgan

    I've experiecing this same error on a MacBook Pro connected to a Time Capsule.  Everything was working fine, until I (allegedly) "upgraded" to Mavericks.  Then all **** broke loose.  I sure miss the OS stability of Snow Leopard.  Mavericks is horrendously slow and has wrecked havok with my Mac.

  • by Alf Megson,

    Alf Megson Alf Megson Jun 1, 2014 11:19 AM in response to johpo01
    Level 1 (105 points)
    iOS Apps
    Jun 1, 2014 11:19 AM in response to johpo01

    Are you using the latest version of RAIDiator? I think the latest version is 4.1.13 and a lot of issues with Mavericks and Time Machine have been ironed out. I'm on Mavericks 10.9.3 and was having a lot of problems until a couple of months ago.

     

    You might also get better peer support on the NetGear ReadyNAS forums:

     

    http://www.readynas.com/forum

     

    Mac forum:

     

    http://www.readynas.com/forum/viewforum.php?f=28

     

    Time Machine forum:

     

    http://www.readynas.com/forum/viewforum.php?f=71

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