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rjalex

macrumors 6502
Original poster
Mar 27, 2011
259
55
Rome, Italy
Dear friends,
my old late 2009 iMac has broken down. It ran Sierra and had updated TimeMachine backups to 2 weeks ago.

As I'm cash strapped for now I have a 2015 Macbook that will take its place. I just installed a new install of Catalina on the latter.

While I think it will be straightforward to restore my User files, I am confused with the opportunity of restoring some important Apps from the old machine's backup to the new one. Is it feasible? Is it a good idea or should I just install them over from scratch on the new machine and go though their customization/setup once anew?

TIA
 

ApfelKuchen

macrumors 601
Aug 28, 2012
4,335
3,012
Between the coasts
It's feasible to install some apps, others are best reinstalled, some (32-bit apps) won't run at all.

You didn't mention which OS you had on the old iMac - High Sierra 10.13.6 would have been the maximum possible.

My own feeling is to transfer all apps, then find and delete/replace only those that no longer work, starting with those whose icons are grayed-out and have the prohibitory sign (circle with diagonal line) superimposed over the icon. You'll see that for all 32-bit apps. In general, you can expect you'll need to reinstall Microsoft Office from scratch.
 
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rjalex

macrumors 6502
Original poster
Mar 27, 2011
259
55
Rome, Italy
Thank you all very much. I had Sierra on the old machine as 10.13 made it very slow and I reverted back to 10.12

So you suggestions would be to use this "migration assistant" with the timemachine backup to restore and then fix the ones that don't work, right?
 

HDFan

Contributor
Jun 30, 2007
7,290
3,341
my old late 2009 iMac has broken down. It ran Sierra and had updated TimeMachine backups to 2 weeks ago.

As I'm cash strapped for now I have a 2015 Macbook that will take its place. I just installed a new install of Catalina on the latter.

How current are the apps on the 2009 iMac?

My own feeling is to transfer all apps, then find and delete/replace only those that no longer work,

I would first do a fresh install of all apps where you can download current Catalina installers. When these are not available then use older installers, then Migration assistant, and hope they work. Be careful with older programs which have daemons or launch agents.
 
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rjalex

macrumors 6502
Original poster
Mar 27, 2011
259
55
Rome, Italy
Ok that's a good idea. Most apps on the old dead machine were ok but a few (eg Lightroom) had been kept backlevel since they would not install on the old Sierra MacOS.
Thanks a lot.
 

posguy99

macrumors 68020
Nov 3, 2004
2,284
1,531
Aside from security issues, I'm not understanding why you didn't just put Sierra on the 2015 MBP? Yes, yes, no security patches. But you'd already bit on that. It'd be a straight-across restore.
 

rjalex

macrumors 6502
Original poster
Mar 27, 2011
259
55
Rome, Italy
Because Sierra held me back from some welcome newer versions of some of my important apps such as Lightroom, so if I have to start a new machine I'd guessed it wasn't a bad idea to bring MacOS to currency.
Thanks!
 

Ben J.

macrumors 65816
Aug 29, 2019
1,066
625
Oslo
I went from Sierra on an old mac pro 3,1 to 10.15.3 on a 2017 imac. Clean install and did a clone. I used Migration Assistant to transfer everything, and without going into details, it was a shambles. Restored the clean install and used MA with "Programs" option deselected, and it worked out just fine.
My advice is to clean install, do a migration of settings and documents, and then install applications manually.
 
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rjalex

macrumors 6502
Original poster
Mar 27, 2011
259
55
Rome, Italy
That makes a lot of sense. It might also be the occasion to NOT reinstall seldom used apps which cropped up some time in the past :)
So does 10-15 run aok on your 2017 iMac? Is it a vanilla machine or did you exchange the HDD with an SSD?
Thank you very much.
 

Ben J.

macrumors 65816
Aug 29, 2019
1,066
625
Oslo
Of course, Catalina is 64 bit only, so many apps will not work and a rebuild is inevitable in a sense. But AM without "programs" option, helped a lot transferring system settings, passwords, licenses etc, and saved me a lot of work. Six months on, everything is great, I'm on 10.15.6 and the latest Adobe apps, and Avid Pro Tools (known to be extremely "fragile"). I have two OWC external SSDs on TB3 for system, photo, and audio media files. The imac is allright, as long as I don't boot from the internal 1GB hybrid internal. The difference is big with the fast SSDs.
 
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