isotop7 / mbp-crux

Crux on MacBook Pro 15,2

crux-mbp

This repo contains patches for the Crux Makefile in order to create a custom ISO for my MacBook Pro 15,2. The build process in its current state has to be done from another Crux installation but could a vm could be used for this.

Currently tested linux kernel versions:

• 5.12.14 (as mbp-arch is using this one)

Status:

• Status: incomplete

The created initramfs on the iso is bootable, keyboard and USB type C works. The installation also sees the GPT partitioned MacBook disk and installation works. Booting the installed system does not work at the moment because the needed custom kernel modules are not copied to rootfs (check issue #1)

List of also not working/untested things:

• TouchBar (should work, needs some debugging)
• Wifi (should work, needs testing)

Setup Crux repo

mkdir -p ~/crux3.6 && cd ~/crux3.6

# Clone ISO repo
git clone -b 3.6 git://crux.nu/system/iso.git

# Move to ports dir
cd iso/ports

# Clone ports
git clone -b 3.6 git://crux.nu/ports/core.git
git clone -b 3.6 git://crux.nu/ports/opt.git
git clone -b 3.6 git://crux.nu/ports/xorg.git

# Move back to ISO dir
cd ..

Install prerequisites

# Generate missing packages file
make -B packages.all

# Install missing packages
prt-get depinst $(cat packages.all)

Patch files

# Clone this repo
git clone https://github.com/Isotop7/mbp-crux

# Patching Makefile
patch -p1 < mbp-crux/iso/Makefile.patch

# Patching pkgmk.conf
patch -p1 < mbp-crux/iso/pkgmk.conf.patch

# Patching initramfs
patch -p1 < mbp-crux/iso/init.patch
patch -p1 < mbp-crux/iso/initramfs.lst.patch

# Patching busybox
patch -p1 < mbp-crux/iso/busybox-1.32.0.config.patch

# Copy kernel config
cp mbp-crux/linux-5.12.14.config kernel/

Clone and apply kernel patches

# Clone repo
git clone https://github.com/aunali1/linux-mbp-arch.git

# Copy patches
mkdir kernel/mbp-patches
cp linux-mbp-arch/*.patch kernel/mbp-patches

# Remove archlinux stuff
rm kernel/mbp-patches/000*

Clone and prepare kernel drivers

# Clone repo
git clone -b mbp15 https://github.com/t2linux/apple-ib-drv.git

# Switch to cloned repo and apply patch
cd apple-ib-drv && patch -p1 < ../mbp-crux/apple-ib-drv/Makefile.patch

# Switch back to base dir
cd ..

# Clone repo
git clone -b aur https://github.com/t2linux/apple-bce-drv.git

# Switch to cloned repo and apply patch
cd apple-bce-drv && patch -p1 < ../mbp-crux/apple-bce-drv/Makefile.patch

# Switch back to base dir
cd ..

Build Crux

# Create kernel
make kernel

# Mandatory
# THIS CAN TAKE A LONG TIME
make bootstrap

# Create ISO
make iso

Prepare MacBook

• Install refind which is used for booting later on
• Create a free disk partition on your MacBook disk

Installation

• Write generated ISO to usb stick (/dev/sdX, path can be obtained with fdisk -l or lsblk:
  • dd if=<path to iso> of=/dev/sdX bs=1M; sync
• Boot MacBook with option-key to USB stick or via refind

Credits

All credits go to aunali1 for his awesome work.

There is also a wiki for the community porting efforts at t2linux.

The official ISO build for Crux was used as a template and is described here.

You can find the refind bootloader here.

mbp-crux's Issues

Add macbook specific drivers to installation medium

The macbook specific kernel modules are compiled when creating the initramfs for the installation ISO but are also needed when compiling the kernel for the first time after running setup-chroot

• check logic that copies files to rootfs
• check logic that copies kernel modules to rootfs
• copy kernel modules to rootfs
• create modprobe overlay (if needed) and add info