I am getting a Time Machine error "The backup disk image could not mount"

Time Machine message "The backup disk image could not be mounted"

Go to Pondini's Time Machine FAQ for assistance.

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Time Machine Error: "The backup disk image could not be created." Help.

I have two Macbook Pro's. One is able to backup to the Time Capsule with no problems. The other connects just fine to Airport Utility, but I get the following error after I attempt to backup: Time Machine Error: "The backup disk image could not be created."
I have reset the Time Capsule several times, so that is not the fix.
The first thing I see when attempting to open Time Machine is the following message: :The storage location for Time Machine Backups can't be found." It gives me the option to setup the Time Capsule, which I select. The next thing I select is to Change Disk. The window that opens has the Icon with Three people on it. The name of that Icon is The Moreman Time Capsule. I select it, and enter the password I created. I then choose to Backup. Then I choose to backup now. That is when I get the error: Time Machine Error: "The backup disk image could not be created."
Any ideas? Has anyone encountered this problem?

You have to delete the .dmg file and start over. This happened to me 3 times already, I finally switched to Déjà Vu, works perfect and only once a day instead of 24 times a day.
http://propagandaprod.com/

Time Machine error "The backup disk image could not be created"

I'm trying to back up to an external hard drive on a home network (not Time Capsule). Time Machine appears to recognize the drive, and the correct amount of free space on it, but fails with the error "The backup disk image could not be created" after a lengthy "Preparing" wait. What's going on? Other applications are able to access this drive with no problems.

I know Apple won't support other makes of NAS, but this post I found from Pondini worked for me.
Hi, and welcome to the forums.
Check your Computer Name at the top of the System Preferences > Sharing panel.
It must not be blank; it should not be more than 25 characters long; and you should avoid punctuation, spaces, and special characters.
After changing it, click the Edit button and make the corresponding change to the Local Hostname.
If that doesn't help, apply the same rules to the name of your Time Capsule and Network, via Airport Utility.
It was really as simple as that (after I had done such things as delete the sparsebundle file, created a new one, zeroed-out the new one, nightmare!)
Problem seems to be with OS X's naming of Macs when you first set it up, as it creates a hostname "<yourName>'s Mac Book." When the NAS software (mine anyway) creates the sparsebundle image it replaces the spaces of the hostname with hyphens and strips out the apostrophe, which is never gonna work.

Time machine error: The backup disk image could not be mounted

Time Machine worked OK for several months. Now I get this error every 10 minutes or so.
I unplugged Time Machine capsule and "Change Disk" in Time Machine options.
Nothing helps, I continue to get this error.
I cannot Enter Time Machine either. "Connecting to Server, Connecting to backup" does not work.
Help please because I will probably have to archive and reinstall Leopard. I need the backups,
Christine

Christ1ne,
Before you reformat the disk, consider these causes of this error.
*_"The Backup Disk Image Could Not Be Mounted" (Console - “Failed to mount disk image”)_*
First, it is important to distinguish this error message from another, similar Time Machine error that states “The backup volume could not be mounted”. This is important as the causes and cures for these two errors can be very different.
Consider each topic below separately. When one option does not resolve your issue, then move on the next one.
*Unmount the Backup Disk Image* (TC)
If, for some reason, you have manually mounted the Time Machine backup disk image (sparsebundle), or Time Machine failed to eject it after the previous backup, subsequent backups may fail. (Console - “Failed to mount disk image”… “Backup failed with error: 21”)
Eject the backup disk image (white drive icon) by either clicking the little Eject icon to the right of the disk image in the Finders’ Sidebar, or Ctrl-Click the drive icon on the desktop and select “Eject” from the contextual menu. Now try backing up again or launching Time Machine to view previous backups.
*“Disconnect All Users…”:*
If your Time Machine backup drive (“Backup of Users Computer”) is mounted on your desktop or in the Sidebar of the Finder window. then Time Machine may think the drive is already in use. Alternatively, if the Time Capsule hard disk has been recently accessed by a Windows machine, it may not have fully relinquished control. Do the following:
Open Airport Utility and select the Time Capsule on the left.
Click “Manual Setup”.
Select “Disks” at top of window.
Click “Disconnect All Users…” at bottom of window.
Close the Airport Utility.
Now try Backing up again.
One poster reported: “I got it resolved. Apparently it had to do with one of the files being open on the disk from the drive. I had browsed the disk with one of my windows boxes here and it must have left one of the folders "open". Anyway, I rebooted the TC and we are good to go now.”
*Proper Computer Name* #
Make sure your computer has a proper name. Go to System Preferences --> Sharing. Time Machine needs to differentiate your computer from others on your network (i.e. "Bills MacBook" or "Office iMac"). If the "Computer Name" field is blank, create a name. Realize that if this step is necessary, you will likely have to start the Time Machine backup process over again and do another full initial backup.
According to this article, [http://support.apple.com/kb/TS1760], Time Machine may experience problems if your computer name includes certain characters. Make sure the computer name only includes ASCII characters from the following set.
(0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ)
Once a change in the computer name occurs, you should stop and restart Sharing on the affected computer. Uncheck and then recheck Sharing in the Services list on the left.
# Try removing the apostrophe from the disk images name (sparsebundle).
*A Stalled .inProgress Files:* #
It may be that the previous backup attempt was ungracefully interrupted leaving remains that Time Machine can’t deal with.
Stop any current backup attempt. Choose “Stop Backing Up” from the Time Machine menu.
Open the Time Machine Preferences and turn “OFF” Time Machine.
Open your Time Machine drive.
Open the folder labeled “Backups,backupdb”.
Now open the folder containing backups of the computer in question.
Are there any “.inProgress” files there. Delete them by dragging the file to the Trash. Or Ctrl-Click the file and select "Move to Trash" from the contextual menu. (Give this time as deleting a large file on an external disk can take a while.)
Turn Time Machine back “ON”. Now try backing up again.
NOTE: If the above procedure becomes impossible to perform, try accessing the disk image from another Mac. Some have discovered that attempting a repair from another computer succeeds where the original computer failed.
Let us know if any of the suggestions above helped to resolve your issue.
Cheers!

I am running 10.7.5 and getting Time Machine error The backup disk image "/Volumes/Data/Kathy P's MacBook.sparsebundle" is already in use. what do i do now?

i am running 10.7.5 on an older MacBook and getting Time Machine error The backup disk image “/Volumes/Data/Kathy P’s MacBook.sparsebundle” is already in use. what do i do now?

See Pondini's TM FAQs, for starters.

My Time Machine / Time capsule gets the error: The backup disk image could not be mounted

My time machine / time capsule gets the error: The backup disk image could not be mounted.

Reboot the TC.
If you normally have multiple computers backing up, under Lion there seems to be some issues.. you need to force other users off the system. You can do that through the Airport utility, manual setup, disks, disconnect all users. Note carefully if you use Lion you probably need to download the real airport utility.. 5.6 to accomplish anything useful.

HT3275 Time Machine Error: The backup disk image "Volumes/Data/My Macbook Pro.sparsebundle" is already in use. (How do I correct this issue?)

Time Machine did not back up:
Time Machine Error; ("The backup disk image "/Volumes/Data/My MacBook Pro.sparsebundle" is already in use.")
How do I correct this issue?
Thanks!

You need to be careful Bob.. people might take this literally.
Bob Timmons wrote:
How do I correct this issue?
Call the exterminator to get rid of the bugs in Lion and Mountain Lion.
https://discussions.apple.com/thread/5222487?tstart=0

HT3275 TIME MACHINE ERROR: The backup disk image "/Volumes/Data/Sean McGuire's MacBook Pro.sparsebundle" could not be created (error 1).

I can select a disk (Time Capsule) and initiate the backup. It only "waits to back up" then "making backup disk available" and remains frozen there. I tried to update the software a while back and was unsuccessful, I think that may be the issue.
Any insight would be greatly appreciated. This is the error message I receive.
TIME MACHINE ERROR: The backup disk image “/Volumes/Data/Sean McGuire’s MacBook Pro.sparsebundle” could not be created (error 1).
Thanks

See #C17 in Pondini's excellent support document Time Machine - Troubleshooting
http://pondini.org/TM/Troubleshooting.html

TC Error "The backup disk image could not be mounted."

My new time machine was working fine for a couple of weeks now I am getting this error message constantly. Does anyone have any suggestions what to do?
"The backup disk image could not be mounted."

I posted the same thing a couple of threads down, I deleted the back up then went into the time machine options and choose the time capsule option again and did another full backup and now it seems to be working properly.

Time Machine error: The backup disk image "/Volumes/----/----MacBook Pro.sparsebundle" is already in use and resource unavailable?

I have a MacBook Pro 13" 2010 model running Mountain Lion. I have always been able to use Time Machine with my Time Capsule. Just today I have been receiving the same error message whenever I would back up my computer:
I removed my name before "MacBook Pro". It takes a long time "Looking for backup disk..." first. The disk I put with the time capsule is called Huge Backup, and in Huge Backup there is my sparsebundle file called "----- MacBook Pro." When I open Finder, open my time capsule, and then open my sparse folder, it should mount a drive where I can see my computer's backups. That doesn't work. Then I get this message:
I once again removed my name before "MacBook Pro" but I can open my sister's sparsebundle who is running Mountain Lion on the same network and her backups work fine. I have researched this topic and have tried to repair the disk in Disk Utility, remount all the drives, remove the drive and restart the backups, and even restart my computer and the Time Capsule. Nothing worked. It just was working yesterday, but now I get this in the settings along with a caution symbol in my menubar:
Is there anything I could do to fix this? Reconnecting it in AirPort Utility (5 or 6) didn't work. Also, for some reason, the error renamed Huge Backup to Huge Backup-1 as you can see above and below in the messages. I downloaded the Time Machine Buddy widget and this is the error report I got. I replaced my names or private info with [-----]. By the way, the network is called NDR Network, and the Time Capsule is alled NDR Time Capsule. Here's the error I keep getting:
Starting manual backup
Attempting to mount network destination URL: afp://[-----];AUTH=SRP@NDR%20Time%20Capsule._afpovertcp._tcp.local/Huge%20Backu p
Mounted network destination at mount point: /Volumes/Huge Backup using URL: afp://[-----];AUTH=SRP@NDR%20Time%20Capsule._afpovertcp._tcp.local/Huge%20Backu p
Disk image already attached: /Volumes/Huge Backup/[-----]'s MacBook Pro.sparsebundle, DIHLDiskImageAttach returned: 35
Failed to mount disk image: Error Domain=com.apple.backupd.ErrorDomain Code=31 "The operation couldn’t be completed. (com.apple.backupd.ErrorDomain error 31.)" UserInfo=0x7ff0a483e6c0 {MessageParameters=(
Ejected Time Machine network volume.
Waiting 60 seconds and trying again.
Attempting to mount network destination URL: afp://[-----];AUTH=SRP@NDR%20Time%20Capsule._afpovertcp._tcp.local/Huge%20Backu p
Mounted network destination at mount point: /Volumes/Huge Backup using URL: afp://Rohan;AUTH=SRP@NDR%20Time%20Capsule._afpovertcp._tcp.local/Huge%20Backup
Disk image already attached: /Volumes/Huge Backup/Rohan's MacBook Pro.sparsebundle, DIHLDiskImageAttach returned: 35
Failed to mount disk image: Error Domain=com.apple.backupd.ErrorDomain Code=31 "The operation couldn’t be completed. (com.apple.backupd.ErrorDomain error 31.)" UserInfo=0x7ff0a343d430 {MessageParameters=(
Ejected Time Machine network volume.
Waiting 60 seconds and trying again.
Attempting to mount network destination URL: afp://Rohan;AUTH=SRP@NDR%20Time%20Capsule._afpovertcp._tcp.local/Huge%20Backup
Mounted network destination at mount point: /Volumes/Huge Backup-1 using URL: afp://Rohan;AUTH=SRP@NDR%20Time%20Capsule._afpovertcp._tcp.local/Huge%20Backup
Disk image already attached: /Volumes/Huge Backup-1/Rohan's MacBook Pro.sparsebundle, DIHLDiskImageAttach returned: 35
Failed to mount disk image: Error Domain=com.apple.backupd.ErrorDomain Code=31 "The operation couldn’t be completed. (com.apple.backupd.ErrorDomain error 31.)" UserInfo=0x7ff0a34410c0 {MessageParameters=(
Ejected Time Machine network volume.
Giving up after 3 retries.
Backup failed with error: 31
[SnapshotUtilities mountPointForVolumeRef] FSGetVolumeInfo returned: -35
Failed to eject volume (null) (FSVolumeRefNum: 0; status: -35; dissenting pid: -1)
Failed to eject Time Machine disk image: /Volumes/Huge Backup-1/Rohan's MacBook Pro.sparsebundle
Please help!

I didn't remove all of my names, so just ignore that...

HT3275 Time Capsule error message: "Time machine error-The backup disk image /Volumes/Data/Zeb's MacBook Pro.sparsebundle could not be accessed (error -1)".

Please help! Got myself a timecapsule a few months back. I just use it to back up my mac, and also have a wireless printer connected. I have a Macbook Pro (Mac OS X 10.7.3). When I first got my Time Capsule it backed up flawlessly, but in the last few months has started showing the message above. So now it wont back up at all.
Have done probably 2 system updates during this time, and even a firmware update a few days ago for the timecapsule. This recent firmware update seem to fix it for a day, but now the problem is back!!! Even Mac support wasnt able to help last time I called.
HELP HELP HELP!!!
Cheers

See #C17 in Time Machine - Troubleshooting

I'm having trouble backing up my second macbook to a new time capsule. continue to get an error message -- "Time Machine Error. The backup disk image could not be created." Is there something I need to change in my time capsule or time machine?

I just set up a new time capsule. it worked fine on my first macbook. But now I cannot backup my second macbook. Getting "Time Machine Error" "The backup disk image could not be created." Do I need to change settings on my time capsule to allow the second computer, or do I need to change something on the computer to allow time machine to work right?

Try #C9 in Pondini's Time Machine Troublshooting
http://pondini.org/TM/Troubleshooting.html

Time machine - "the backup disk image could not be mounted"

SInce a few days, I am unable to backup via Time Machine.
I always get the message:
TIME MACHINE ERROR
The backup disk image could not be mounted
I use an Apple Time Capsule and still have more than enough free space on it.
Use OS X 10.5.5
Help.....
Tks

Rosy,
*_"The Backup Disk Image Could Not Be Mounted" (Console - “Failed to mount disk image”)_*
First, it is important to distinguish this error message from another, similar Time Machine error that states “The backup volume could not be mounted”. This is important as the causes and cures for these two errors can be very different.
Consider each topic below separately. When one option does not resolve your issue, then move on the next one.
*Unmount the Backup Disk Image* (TC)
If, for some reason, you have manually mounted the Time Machine backup disk image (sparsebundle), or Time Machine failed to eject it after the previous backup, subsequent backups may fail. (Console - “Failed to mount disk image”… “Backup failed with error: 21”)
Eject the backup disk image (white drive icon) by either clicking the little Eject icon to the right of the disk image in the Finders’ Sidebar, or Ctrl-Click the drive icon on the desktop and select “Eject” from the contextual menu. Now try backing up again or launching Time Machine to view previous backups.
*“Disconnect All Users…”:*
If your Time Machine backup drive (“Backup of Users Computer”) is mounted on your desktop or in the Sidebar of the Finder window. then Time Machine may think the drive is already in use. Alternatively, if the Time Capsule hard disk has been recently accessed by a Windows machine, it may not have fully relinquished control. Do the following:
Open Airport Utility and select the Time Capsule on the left.
Click “Manual Setup”.
Select “Disks” at top of window.
Click “Disconnect All Users…” at bottom of window.
Close the Airport Utility.
Now try Backing up again.
“I got it resolved. Apparently it had to do with one of the files being open on the disk from the drive. I had browsed the disk with one of my windows boxes here and it must have left one of the folders "open". Anyway, I rebooted the TC and we are good to go now.”
*Proper Computer Name* #
Make sure your computer has a proper name. Go to System Preferences --> Sharing. Time Machine needs to differentiate your computer from others on your network (i.e. "Bills MacBook" or "Office iMac"). If the "Computer Name" field is blank, create a name. Realize that if this step is necessary, you will likely have to start the Time Machine backup process over again and do another full initial backup.
According to this article, [http://support.apple.com/kb/TS1760], Time Machine may experience problems if your computer name includes certain characters. Make sure the computer name only includes ASCII characters from the following set.
(0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ)
Once a change in the computer name occurs, you should stop and restart Sharing on the affected computer. Uncheck and then recheck Sharing in the Services list on the left.
Let us know if any of the suggestions above resolves your issue.
Cheers!

I keep getting this error when trying to backup time capsule with time machine. The backup disk image "/Volumes/Data-1/Dan's iMac.sparsebundle" is already in use.

I keep getting this error when trying to backup time capsule with time machine. The backup disk image “/Volumes/Data-1/Dan’s iMac.sparsebundle” is already in use.

Make sure that no other Macs are backing up at the time.
Pull the power cable from the back of the Time Capsule
Count to ten
Plug the power cable back into the back of the Tme Capsule
Wait a few minutes, then try a backup again.

Time Machine error message: The backup disk image could not be created

I got a new MacBook the other weekend and Time Capsule. I have set up the time capsule, its light is green, it shows up as a device in my finder window and the printer it shares is accessible.
The problem is when I try to run time machine I get the error message "the backup disk image could not be created" I have the time capsule selected as the drive I want to back up to. I have read through all 150 help topics on the Mac Support page regarding time machine and am now turning to you the community to help!

I found an answer in another place on this forum...http://discussions.apple.com/thread.jspa?threadID=1422065&tstart=330
Just have to give my computer a name under system preferences/sharing

I am getting a Time Machine error "The backup disk image could not mount"

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