VirtualBox on Ubuntu general notes.
1. To check if virtualization is looked like real OS use PAFISH tool github.com/a0rtega/pafish
2. How to increase HDD for vm? // Go to File->Tools->Virtual Media Manager->Properties->drug // works
3. Import vbox only with vdi file without vbox. // While you are creating a new machine -> Choose create from existing disk vdi.
1. Enable virtualization VT-X in BIAS.
2. I've downloaded vdmk and create virtual macos sierra. But OS doesn't started. Some CD detection error.
2.1. Delete CDROM. And delete optical from Boot order. // Helped
2.2. I've got just an interactive Shell> // probably boot.efi file should be on boot partition
2.2.1. Type exit
2.2.1. Сhange Boot order. // Doesn't work.
2.3. Choose boot from file. // Empty
2.3.1. Add ISO MacOS optical disk to Virtual machine and try boot from file again.
2.3.2. Find boot.efi
2.3.2.1. in usr/standalone/i386 // No
2.3.2.2. in system/library/core_services // No
2.3.2.3. ia_bootfiles // No
2.3.2.4. It was looked like the installation stucked but maybe I had to wait longer.
3. Try to install from ISO from scratch.
3.1. Set boot order in UEFI from Optical drive. // doesn't works
3.2. Probably I need some additiona system level settings.