Time Machine Error, backup disk couldn't be mount

[Serge88]

I have a USB drive plug to my Airport Extreme and I use it for Time Machine. Today I had a message saying: "Latest Backup:Failed"

Time Machine Error
The Backup disk image could not be mounted.

The hard disk is there, I can drag, drop, copy, delete files on that disk. There's is a big file call Serge'siMac_001ec205f583.sparsebundle, the file does not seem corrupted, I could probably drag it to the Desktop. How can I mount the backup disk.

Serge

 

[Peace]

Turn the external HD off then back on. It should mount then.

 

[Serge88]

No it didn't work, I tried to restarted the iMac, the hard disk, the Airport Extreme many times. I can see the hard disk in the Finder under Shared, Extreme88(it's the name of the wireless network) and it say Connected as Serge.

Serge

 

[Serge88]

To update , I have a windows warning, the following disk images failed to mount

Serge's iMac_001ec205f83.sparsebundle Operation not supported on socket

Serge

 

[jeremy.king]

Sounds like the file is corrupt to me. Can you rename it and rerun a full backup?

 

[Serge88]

Sounds like the file is corrupt to me. Can you rename it and rerun a full backup?

Maybe but it takes about 4 day to do a backup over network

Is there an utility to repair corrupt file ?

Serge

 

[jeremy.king]

Use a wired connection for the first run.

 

[Serge88]

Use a wired connection for the first run.

Do you mean connecting a network cable between my iMac and Airport extreme ? It's faster than wireless ?

Serge

 

[Serge88]

Something was corrupted on the disk, I repaired it with disk utility but time machine was still enable to use it. So I erased everything but this time i excluded everything from Time machine minus a few folders. Let see if backup is successful before trying a full backup.

Something strange, my usb hard disk connected to Airport Extreme doesn't show up in Airport disk utility.

Serge

 

[jeremy.king]

Do you mean connecting a network cable between my iMac and Airport extreme ? It's faster than wireless ?

Serge

Yes, much faster.

 

[HaroldC]

I also had a similar problem, and tried everything that was suggested in various threads. Finally, I just erased the entire TC disc using the 'zero' process, which took about ~8 hrs. Then connected my MBP via Ethernet cable to the TC and about ~8hrs later..... success!