No boot medium sounds like their is no MBR installed that will start the boot process. I could be wrong tho.

Last time I installed Manjaro I installed it the same way you are, with root taking up almost all the disk space and leaving a little room for swap. When I installed it, with their old textual installer, there was a dialog box asking where to install the MBR, and for that I selected /.

An easier way to install would be to create a /boot a / and a /swap, and then /boot would automatically get the MBR.


If you are using a real Mac, you may have to follow the Arch wiki to install it because Macs don't play all the nice with Linux. Everything that is on the Arch wiki will work on Manjaro.

** edit

Manjaro changed their installer alot since when I last used it, I will see if I can replicate your error and see where things gone wrong.