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rated 0 times [  0] [ 0]  / answers: 1 / hits: 539  / 3 Years ago, thu, september 16, 2021, 11:19:13

I'm using a macbook and am trying to use one usb-drive to install ubuntu onto another usb-drive and boot from that other usb-drive.



I created an installationdisk for ubuntu 14.04, and then installed it onto another usb-disk, following theese instructoins:
https://www.youtube.com/watch?v=QdQ520dmg5g



I unplugged the installationdisk, keeping the installed disk plugged in. While holding the key "alt" i booted up my macbook pro. Holding alt should show all bootable drives on a mac, but I only get my osx system disk and my recovery disk. The usb-stick with ubuntu doesn't show up. The thumbdrive that I used as a installationdisk worked fine .


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Yes, I found this is a tricky issue and the web keeps telling you how to make a bootable install disk, or to just hold down the option key, but there's more to it than that.



The trick I found is after the install, you have to tweak the resulting disk and use rEFInd to boot the linux image via GRUB.



I asked the same question and after much research managed to answer it myself here: How to boot Ubuntu on a mac from external USB storage?



That has detailed instructions and a link to something I put on the web with more detail and screenshots.


[#23126] Saturday, September 18, 2021, 3 Years  [reply] [flag answer]
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