![install linux to boot usb for mac install linux to boot usb for mac](https://cdn.statically.io/img/static1.makeuseofimages.com/wordpress/wp-content/uploads/2008/07/image_thumb24.png)
If you have a Core2 Duo Mac (as oppossed to the Core Duo), it is capable of using the AMD64 (64bit) CD otherwise you have to use the standard version. However since your iMac is a Core Duo it will need a 32bit Ubuntu as noted on Ubuntu's Mac Community documentation. Since your iMac is an intel one, you can use a standard Ubuntu ISO built for any x86 PC. Ubuntu for Intel Macs and additionally the Ubuntu Intel Mac CommunityHelpPages looks to be loaded with lots of resources that you might find helpful.
![install linux to boot usb for mac install linux to boot usb for mac](https://cdn.statically.io/img/linuxhint.com/wp-content/uploads/2018/07/d.png)
You should checkout a Ubuntu instructions for Intel Macs, so no need to worry about a BIOS your running EFI.
![install linux to boot usb for mac install linux to boot usb for mac](https://fossbytes.com/wp-content/uploads/2018/09/How-to-create-Bootable-media-using-Rufus-for-Installing-Windows-and-Linux.jpg)
Looks like you have all you will need already, you were just missing the following bits of information.
#Install linux to boot usb for mac mac os#
So I ask, what would you do? The only thing is it should not involve any money (I know Mac software is rarely free) which also excludes getting any Mac OS unless I can use a free macos.img for VM or restore the original Mac for free.
![install linux to boot usb for mac install linux to boot usb for mac](https://ubuntucommunity.s3.dualstack.us-east-2.amazonaws.com/original/2X/b/b4a4473abf09d6761ecb13f6e94c3ab84cce47b8.jpeg)