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User profile for user: joscm
joscm Author
User level: Level 1
13 points

Bootable USB for Mojave on iMac using Sequoia

The harddisk in my iMac Model A1225 crashed. I replaced it with a Kingston 960 Mb ssd which I formatted first (extended journaled, GUID-partition). When I try to download Mojave from the app-store, using Sequoia, it refuses to make such an old bootable usb because it's too old compared with Sequoia.

How to proceed?

My intention is to run Mojave from a bootable usb on my old iMac and the prepare te Kingston ssd for running Mojave (last usable macOS on A1225).

Am I doing the right thing? How should I proceed?

Thanks already for possible help.


Jos


[Re-Titled by Moderator]

Posted on Dec 24, 2024 2:53 AM

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3 replies
User profile for user: PRP_53
PRP_53
User level: Level 10
92,545 points

Dec 24, 2024 7:42 AM in response to joscm

My learned colleague @The-Knowledge_Seeker is very correct in their assessment


Apple iMac "Core 2 Duo" 2.4 24" (Al) Specs

Identifiers: Mid-2007 - 24" - MA878LL - iMac7,1 - A1225 -  2134


macOS Mojave - Technical Specifications


As for attempting to download macOS 10.14 Mojave from a computer that Qualifies to Run macOS 15 Sequoia


The Bootable Installer can Only be performed on an Apple Computer 


This will have to be performed from a Qualifying Computer to run the version of macOS to be made on the Bootable Installer.


Example : Bootable Installer of Mojave would have to be done on a computer that Qualifies to run Mojave .


Notation: If the computer being used to perform this action is Too New or Too Old to qualify to run the version of macOS - this computer can’t be used.


Alternative is, to gain access to a Qualifying Apple Computer from a family member, friend or associate.


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Bootable USB for Mojave on iMac using Sequoia

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