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Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you.

This is the error I am receiving.

Click Start New Backup to create a new backup. This will remove your existing backup history. This could take several hours.

Click Back Up Later to be reminded tomorrow. Time Machine won’t perform backups during this time.

Can anyone tell me why? The last back up was July24th. I am afraid to start a new back up if I have to erase everything first.

My Mac OS X version is 10.7.4

Need help with this, as I am very confused why it stopped working.

Time Capsule 802.11n (4th Gen), Mac OS X (10.7.4)

Posted on Aug 14, 2012 6:41 AM

351 replies

Oct 5, 2017 5:20 AM in response to July7Kiss1995

As far as I can tell there is no fix for this, it will always happen when backing up multiple machines over several years. That’s the way it just works.

Csound1

Level 9

59,973 points

Oct 31, 2017 4:39 AM in response to danseq

As using a NAS is not supported there is nothing to fix.

danseq

Level 2

163 points

Oct 31, 2017 4:44 AM in response to Csound1

Fine...then until Apple decides to *support* NAS for TM...

Oct 31, 2017 6:29 AM in response to Csound1

You told us that NAS drives are not supported. This is not correct. I have used one for the last few years.

You are entitled to your own opinion about network drives, but not to your own facts.

Duchy777

Level 3

708 points

Oct 31, 2017 6:23 AM in response to danseq

I found that using Cloud Station (Synology) to either synchronise folders or use for back-up has worked well.

Dec 2, 2017 1:18 PM in response to Bob Timmons

Back up is still good and usable. I just restored a file from it just to verify. But no new backups since Mac "thinks" it's corrupted.

Time Machine completed a verification of your backups. To improve reliability, Time Machine must create a new backup for you.