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Live linux distro combined in one EFI file.

Download herehttps://github.com/zhovner/OneFileLinux/releases

More information in russianhttps://habrahabr.ru/post/349758/

diskutil mount disk_NUMBER

To find out EFI partition disk number usediskutil list

The command is as follows in my case:

diskutil mount disk0s1

cp ~/Downloads/OneFileLinux.efi /Volumes/EFI

sudo bless --mount /Volumes/EFI --setBoot --nextonly --file /Volumes/EFI/OneFileLinux.efi

This command will boot linux only once. Next reboot will return previous boot sequence.

!!! Note that System Integrity Protection (SIP) prohibits to change boot options.
You can runbless from Recover Mode console. Press CMD+R while power on and go to "Utilities —> Terminal"

If your motherboard has UEFI Shell, just choose the path to OneFileLinux.efi on ESP.
Otherwise add new boot options to NVRAM and choose it from boot menu.

Example for ThinkPad x220

efibootmgr --disk /dev/sda --part 2 --create --label "One File Linux" --loader /OneFileLinux.efi

Press F12 while power on and choose new boot entry

This project is based on vanilla linux kernel4.16-rc1
and Alpine Linux Minimal root filesystemhttps://alpinelinux.org/downloads/

https://git.kernel.org/torvalds/t/linux-4.16-rc1.tar.gz and extract it tolinux-4.16-rc1
This repository contatinslinux-4.16-rc1/.config file with kernel config.

Chroot into root filesystem
chroot ./alpine-minirootfs /bin/ash

Edit what you need. Install packages withapk packet manager.

Run bulding script

./build.sh