Yosemite to Mavericks

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Swiper

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Mar 13, 2003
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So, just wondering
just got new MacMini that came preloaded with Yosemite

Is there any known working way to downgrade this to mavericks ?


finally got 10.9 working with specific software and now it won't work with 10.10
I have tried boot drive installation from USB
but either gets to circle / lilne through it OR
just hangs on apple logo
(depending on the type of drive I create)

anyone......
any tricks ?

thanks
 
Joined
Jan 16, 2015
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You can download Mavericks from the App Store and create a bootable USB with it. Here is a tutorial on how to create one.

After you've done that you can format the HDD by restarting your mac and holding down CMD+R the second you see the apple logo appear for aprox 15 seconds.

I've never done it this way before, I've always downloaded and installed from the app store, I've never had much luck with USB installs so make sure you get a second opinion first
 

Swiper

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Mar 13, 2003
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i've tried with a bootable usb but it seems it wont' go
the apple folks seem to think that because the mini came with yosemite, i can't go to lower version

i think that is rather sillly and thought maybe someone else could shed some light on it
 

Swiper

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could you not install Mavericks on a 'slightly older mac mini" with similar /same hardware which came with mavericks
take the drive physically out and put it into the new mac mini and have it boot up ?
anyone tried this ?
since its all intel processors and not much else changes inside, this should be possible....

yes /no ?
 
Joined
Feb 9, 2005
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There is no one correct yes or no answer because the issue is much deeper.
For starters, once you have installed a newer OS, the hidden Recovery OS isn't downgraded when you install a lower OS.

Even though hardware may appear to be similar, extensions are often "typed" to very specific models and/or variants.
You model may have same GPU as last model, but previous was version 0AF8, and your's is slightly different 0AF9.
As such the kext info from Mavericks might not know your version and will not load.

No one can specifically which ones will or won't work.

Your best bet is to blow out the hard drive of all partitions including the recovery partition, boot the Mavericks install media, install a system and boot in safe mode which only enables the most basic drivers. From here you can start to add in kexts to add support for your hardware.

Not really the simplest to explain or walk through in a forum thread, but it's similar to process Mackintosh users do.
You should be able to find some detailed guides on the net.
 

Swiper

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Joined
Mar 13, 2003
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1,230
it is currently NOT POSSIBLE to install 10.9 Mavericks onto the mac mini if it comes pre-installed with 10.10 Yosemite
that has been my issue since we bought it
tried 2 different USB bootable disks. just hangs on apple logo
can't use it because software doesn't work in yosemite and apple won't tell us how to go to mavericks or sell us something with mavericks . they force you to use a system that doesn't work and just say, whatever you had working before will eventually get fixed and working with yosemite
was hoping someone figured out a way
 
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