Installing old OS onto late 2019 16" MBP

[JSKIM]

Wondering if anyone has tried this? I know that the Mac OS are built with the processor/gpu etc in mind, but can I regress to Mojave from a boot disk on a laptop that shipped with Catalina?

 

[Wowfunhappy]

If you want to try to force it on there, there is basically one file you need to edit. I detailed the process here:

How can I attempt to boot an older version of macOS than my hardware supports?

I have a 2015 Macbook Air. The earliest version of macOS this model ever shipped with was OS X 10.10 Yosemite. However, I want to try installing OS X 10.9 Mavericks, because Yosemite makes my eyes ...

apple.stackexchange.com

Whether or not this has any chance of working without a custom kernel will depend on your hardware. One model I'd expect to work are the 2020 MBP's with only two thunderbolt ports, which use older Intel processors despite shipping with Catalina.

 

[chrfr]

Wondering if anyone has tried this? I know that the Mac OS are built with the processor/gpu etc in mind, but can I regress to Mojave from a boot disk on a laptop that shipped with Catalina?

It won't work. The 16" requires Catalina or later.

 

[JSKIM]

It won't work. The 16" requires Catalina or later.

Ah thank you - this is a big problem for Avid Media Composer users, which is the leading TV/film editing software. Most of us are paying for old machine just to be able to run the most stable version of the program because the Catalina one is a total disaster.

 

[dinobear]

I do photo and video work. Particularly creating live visuals for art installations. I use a lot of little plugins and a lot of applications have to work together simultaneously. I held onto Mojave for as long as I could before getting the 16" in September. So far I've had a great experience with it. Although it had a full year to mature.

I wonder how long it will take for everything to make the move to ARM, considering an OS upgrade took almost a year to get stable...

 

[martyjmclean]

Ah thank you - this is a big problem for Avid Media Composer users, which is the leading TV/film editing software. Most of us are paying for old machine just to be able to run the most stable version of the program because the Catalina one is a total disaster.

I've been using Media Composer 2020 on Catalina, with a Nexis, for the last year.
2020 is more stable (not to mention faster) than the legacy 2018.

 

[JSKIM]

I've been using Media Composer 2020 on Catalina, with a Nexis, for the last year.
2020 is more stable (not to mention faster) than the legacy 2018.

The problem is that many people don't like 2020, which is a re-design of the software. I actually know very little about it, but everyone I know in TV/Film absolutely hates the new Avid, and sounds like as long as you bought a mid 2019, you're ok because the system wipe and install from boot disk to Mojave will work.

I really don't know what I'm going to do, because this laptop is going to die at some point and I work in a well oiled ecosystem that requires the 2018/2019 flavors of Avid.

 

[mdgm]

Resale prices for those models should drop over time (could be a very gradual drop). So you may be able to pickup a second hand unit down the line if not ready to move onto a new system if you really need to run the old software still.

 

[martyjmclean]

The problem is that many people don't like 2020, which is a re-design of the software. I actually know very little about it, but everyone I know in TV/Film absolutely hates the new Avid, and sounds like as long as you bought a mid 2019, you're ok because the system wipe and install from boot disk to Mojave will work.

I really don't know what I'm going to do, because this laptop is going to die at some point and I work in a well oiled ecosystem that requires the 2018/2019 flavours of Avid.

The new UI was in 2019.

I haven't worked with anyone who doesn't prefer it (even if they took a while to get used to it). Really the only change is windows can be tabbed/docked if you wish.

 

[JSKIM]

The new UI was in 2019.

I haven't worked with anyone who doesn't prefer it (even if they took a while to get used to it). Really the only change is windows can be tabbed/docked if you wish.


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Most I know in the feature/tv world don't like it. Mind you, many avid editors are about stability above all else can clearly don't care about UI. For how many of us work, you could still cut a cutting edge VFX film in a version of Avid that was around in 2010. I think we're in for an awkward adjustment period.