Time machine errors

[Eric052492]

Hi, time machine isn't backing up for me. I keep getting these errors.

Aug 3 21:10:45 Macintosh /System/Library/CoreServices/backupd[215]: Error: (13) getxattr for key:com.apple.backupd.SnapshotStartDate path:/Volumes/Time machine/Backups.backupdb/EricMac/2008-08-03-204647
Aug 3 21:10:45 Macintosh kernel[0]:
Aug 3 21:10:45: --- last message repeated 1 time ---
Aug 3 21:10:45 Macintosh /System/Library/CoreServices/backupd[215]: Error: (13) getxattr for key:com.apple.backupd.SnapshotStartDate path:/Volumes/Time machine/Backups.backupdb/EricMac/2008-08-03-204647
Aug 3 21:10:45 Macintosh kernel[0]: disk2s1: device/channel is not attached.
Aug 3 21:10:45 Macintosh kernel[0]:
Aug 3 21:10:45: --- last message repeated 1 time ---
Aug 3 21:10:45 Macintosh kernel[0]: disk2s1: device/channel is not attached.
Aug 3 21:10:45 Macintosh /System/Library/CoreServices/backupd[215]: Error: (13) getxattr for key:com.apple.backupd.SnapshotStartDate path:/Volumes/Time machine/Backups.backupdb/EricMac/2008-08-03-204647
Aug 3 21:10:45 Macintosh kernel[0]:
Aug 3 21:10:45: --- last message repeated 1 time ---
Aug 3 21:10:45 Macintosh kernel[0]: disk2s1: device/channel is not attached.

I'll keep getting messages like that. I'm getting so many per minute that my mac is running at 75C and it's very laggy. I unplugged the drive for now.. Anyone have an idea about whats wrong? I'm still pretty new to macs.

 

[Trajectory]

Is your backup disk connected, and does it show as a mounted drive in Finder?

 

[Eric052492]

Yes

 

[Trajectory]

Try turning Time Machine Off, then On again.

If that doesn't work, in TM Prefs, click Change Disk then choose "None" then click on "Stop Backing Up." Then go back and click on Change Disk again, and re-select your backup drive.

 

[Eric052492]

I tried that, this is what happened:

Aug 3 21:26:02 Macintosh /System/Library/CoreServices/backupd[572]: Backup failed with error: 18
Aug 3 21:26:11 Macintosh kernel[0]: disk2s1: device/channel is not attached.
Aug 3 21:26:11 Macintosh kernel[0]:
Aug 3 21:26:11: --- last message repeated 1 time ---
Aug 3 21:26:11 Macintosh kernel[0]: disk2s1: device/channel is not attached.
Aug 3 21:26:11 Macintosh kernel[0]: