Macbook Air 5,1 is giving me some trouble

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http://crunchbang.org – Does the checksum of your iso match the one provided on the download page? I'm unfamiliar with Macs and the actual workings of EFI, so I can't any specific help there.However I might be able to help with virtualbox.To install guest additions, mount the image with them on your guest:Devices > Install Guest AdditionsThen open a terminal on your guest and browse to that image:cd /media/cdrom0 (usually)Run the installer:sudo sh VBoxLinuxAdditions.runFinally, reboot your guest.A Kernel panic means, the system halted to prevent further damage, because it encountered an error it could no (HowTos)