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Does a TM backup drive need to be "blessed" ?
Posted by: PeterB
Date: October 15, 2019 05:17PM
Just did a complete copy of a Time Machine backup drive (which is failing) to a new drive, but TM doesn't seem to want to recognize the backups on the new drive ... it recognizes the new drive, but doesn't "see" any backups there.

I did the drive copy using Disk Utility's restore option, which from several webpages I've seen, is supposedly the best way to do it (block by block copy).

Any ideas? TiA




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Re: Does a TM backup drive need to be "blessed" ?
Posted by: Speedy
Date: October 15, 2019 06:00PM
No ideas but a suggestion, if you haven’t been using TM’s recovery features, let it start anew.



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Re: Does a TM backup drive need to be "blessed" ?
Posted by: PeterB
Date: October 15, 2019 06:07PM
Quote
Speedy
No ideas but a suggestion, if you haven’t been using TM’s recovery features, let it start anew.

I have been using TM for recovery stuff, so I'd kind of like to have the backups...




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Re: Does a TM backup drive need to be "blessed" ?
Posted by: vision63
Date: October 15, 2019 08:59PM
Oh Lord, please bless Peter B's setup, and hook him up with some extra bucks too. He's a good guy.

Amen
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Re: Does a TM backup drive need to be "blessed" ?
Posted by: PeterB
Date: October 15, 2019 09:01PM
Quote
vision63
Oh Lord, please bless Peter B's setup, and hook him up with some extra bucks too. He's a good guy.

Amen

thumbs up smiley




Freya says, 'Hello from NOLA, baby!' (Laissez bon temps rouler!)
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Re: Does a TM backup drive need to be "blessed" ?
Posted by: btfc
Date: October 15, 2019 09:26PM
[apple.stackexchange.com]
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Re: Does a TM backup drive need to be "blessed" ?
Posted by: vision63
Date: October 15, 2019 09:34PM
Quote
PeterB
Quote
vision63
Oh Lord, please bless Peter B's setup, and hook him up with some extra bucks too. He's a good guy.

Amen

thumbs up smiley

hamster dance
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Re: Does a TM backup drive need to be "blessed" ?
Posted by: PeterB
Date: October 15, 2019 10:07PM
Quote
btfc
[apple.stackexchange.com]

Ugh ... I was doing OK until I got to the part about the .sparsebundle, then I got stuck...




Freya says, 'Hello from NOLA, baby!' (Laissez bon temps rouler!)
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Re: Does a TM backup drive need to be "blessed" ?
Posted by: testcase
Date: October 16, 2019 06:27AM
Point: vision63



Well played sir.
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Re: Does a TM backup drive need to be "blessed" ?
Posted by: Sarcany
Date: October 16, 2019 07:14AM
Quote
PeterB

Ugh ... I was doing OK until I got to the part about the .sparsebundle, then I got stuck...


That step is only for networked Time Machine backups. If your backup drive was directly connected to your Mac, it's not relevant.



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Re: Does a TM backup drive need to be "blessed" ?
Posted by: BernDog
Date: October 16, 2019 07:43AM
That is a term I’ve not heard in a long, long time.

Did blessing system folders go out with System 6? System 7?



Edited 1 time(s). Last edit at 10/16/2019 07:44AM by BernDog.
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Re: Does a TM backup drive need to be "blessed" ?
Posted by: PeterB
Date: October 16, 2019 09:11AM
Quote
Sarcany
Quote
PeterB

Ugh ... I was doing OK until I got to the part about the .sparsebundle, then I got stuck...


That step is only for networked Time Machine backups. If your backup drive was directly connected to your Mac, it's not relevant.

The .sparsebundle part came up because I got the exact same message about failing to gather snapshots as someone else in that thread. I followed the later instructions but got stuck when I got to this part:

Then the tmutil associatedisk -a worked... but I couldn't see my previous backups on time machine

And this made it work

First I had to inheritbackup of that sparesbundle: sudo tmutil inheritbackup "/Volumes/Backups/OldComputerName.sparsebundle" After that, I could use the associatedisk option like tubedogg mentions
specifically for my computer:

tmutil inheritbackup /Volumes/WD\ 2TB\ BACKUP\ 2/Backups.backupdb/MacBook\ Air\ xxx
then

sudo tmutil associatedisk -a /Volumes/Macintosh\ HD /Volumes/WD\ 2TB\ BACKUP\ 2/Backups.backupdb/MacBook\ Air\ xxx/Latest/Macintosh\ HD/
And BAM! I could browse my backups with timemachine




Freya says, 'Hello from NOLA, baby!' (Laissez bon temps rouler!)
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Re: Does a TM backup drive need to be "blessed" ?
Posted by: btfc
Date: October 16, 2019 11:04AM
Nice! Glad it is working.
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Re: Does a TM backup drive need to be "blessed" ?
Posted by: clay
Date: October 16, 2019 12:14PM
Quote
testcase
Point: vision63



Well played sir.
smiley-laughing001

yup!
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Re: Does a TM backup drive need to be "blessed" ?
Posted by: PeterB
Date: October 16, 2019 12:38PM
Quote
btfc
Nice! Glad it is working.

It didn't. I gave up and decided to nuke and pave...




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