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So, I already have a 64-bit 16.04 LTS installed on a USB stick. That already works and boots successfully on any PC or PC laptop.

What I'm interested in is to know if and how, you can make the SAME usb installation to also boot on a Mac (Macbook Pro 2015, Intel i5 CPU). When I try to boot with it (by holding the Option down while booting the Mac), the Mac doesn't recognize it as bootable, it only gives me the option to boot the MacOS X drive.

So, I wonder if there are any packages that I can install, that will make an existing installation to ALSO boot on the Mac, in addition to the PC(s). Thx!

EDIT: I should add, all of my PCs are non-EFI (they're plain BIOS). I know that the Macbook is EFI. Is there a way to have the same bootable USB stick boot on both on EFI and BIOS PCs/Macs?

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USB boot stick 'Try Ubuntu' or 'Install Ubuntu'

Yes, the same USB boot stick works in modern Mac computers with Intel processors as in 'standard PCs made for Windows and linux'. You should use a 64-bit iso file (with amd64 in the file name).

If there are difficulties, they are of the same kind, that you might have with a 'standard' PC, for example with the UEFI boot system or with drivers for graphics or wifi. There is an Ubuntu Forum for Mac computers.

Ubuntu installed to a USB stick (like into an internal drive)

During the installation, the installed system will be locked into either UEFI or BIOS (the mode you are running during the installation), unless you do some special tricks,

help.ubuntu.com/community/Installation/UEFI-and-BIOS

but I don't know if it works in a Mac computer (if the correct drivers are installed).

A compromise is to use a persistent live system, which can be made according to this link,

help.ubuntu.com/community/mkusb/persistent

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  • Yes, only it doesn't see it as bootable. I'm guessing there's something I need to tweak. Just don't know what. – Eugenia Dec 29 '16 at 18:31
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    I suggest that you browse this link, ubuntuforums.org/forumdisplay.php?f=328, and if necessary you can ask there, where you can get help in a longer dialogue. (Here at AskUbuntu it is expected to be well defined questions and answers.) – sudodus Dec 29 '16 at 18:34
  • Thanks. I added some more info on the question above, to narrow down the question. I will check that forum, although it's yet another account I need to make... – Eugenia Dec 29 '16 at 18:35
  • 64-bit iso files with amd64 in the file name work in both UEFI and BIOS mode, but 32-bit iso files work only in BIOS mode (unless you use some special tricks). – sudodus Dec 29 '16 at 18:38
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    I see, and my answers have been assuming they were "live try-out" things. Anyway, during the installation, the installed system will be locked into either UEFI or BIOS (the mode you are running during the installation), unless you do some special tricks. A compromise is to use a persistent live system, which can be made according to this link: help.ubuntu.com/community/mkusb/persistent – sudodus Dec 29 '16 at 20:16

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