Bootstrapping arm64

These are my notes on bootstrapping ravynOS on an M1 Mac.

Install FreeBSD 14 from a Snapshot ISO

1. Download and install the VMware Fusion M1 tech preview
2. Download the newest FreeBSD "disc1.iso" file from the FreeBSD FTP server
3. Create a VM using the ISO as boot/install media, increase the number of CPUs and the amount of RAM (I did 4/16GB), and increase the drive size to at least 60GB.
4. Install FreeBSD
   • for the filesystem, choose a guided ZFS install
   • name the pool "ravynOS"
   • finish the install and reboot
5. Install packages required for bootstrapping
   

   pkg install -fy git-tiny cmake gmake ninja
   

6. Clone the repos
   

   rm -rf /usr/src/*; \
     git clone --depth 30 --branch ranger/arm64 \
     https://github.com/RangerRick/ravynos.git /usr/src && \
    rm -rf /usr/ports/*; \
     git clone --depth 30 --branch ranger/bootstrap-ports \
     https://github.com/RangerRick/freebsd-ports.git /usr/ports
   

7. Build the kernel and reboot
   

   cd /usr/src
   make -j$(sysctl -n hw.ncpu) \
     MK_LIB32=no \
     KERNCONF=RAVYN \
     COMPILER_TYPE=clang \
     buildkernel && \
   make -C release \
     MK_LIB32=no \
     NOSRC=true \
     NOPORTS=true \
     KERNCONF=RAVYN \
     COMPILER_TYPE=clang \
     kernel.txz && \
   make \
     MK_LIB32=no \
     NOSRC=true \
     NOPORTS=true \
     KERNCONF=RAVYN \
     COMPILER_TYPE=clang \
     installkernel && \
     reboot
   

8. Build the base OS
   

   cd /usr/src
   ln -s /usr/local/bin/cmake /usr/bin/
   make -j$(sysctl -n hw.ncpu) \
     MALLOC_PRODUCTION=1 \
     WITHOUT_CLEAN=1 \
     MK_LIB32=no \
     COMPILER_TYPE=clang \
     buildworld && \
   make -C release \
     MK_LIB32=no \
     NOSRC=true \
     NOPORTS=true \
     KERNCONF=RAVYN \
     COMPILER_TYPE=clang \
     base.txz
   

9. Bootstrap the base ports
   

   ln /usr/local/sbin/pkg-static /usr/sbin/
   cd /usr/ports
   mkdir -p dist; cp /usr/obj/usr/src/*/release/base.txz dist/
   PORTSROOT="$(find /usr/obj/*/portsroot -print | head -n 1)"
   mkdir -p ${PORTSROOT}/usr/src ${PORTSROOT}/usr/ports && \
     mount_nullfs /usr/src   ${PORTSROOT}/usr/src && \
     mount_nullfs /usr/ports ${PORTSROOT}/usr/ports && \
     make -f Makefile.ports prepports && \
     mount -t devfs none ${PORTSROOT}/dev && \
     mount -t procfs none ${PORTSROOT}/proc && \
     make -f Makefile.ports buildbootstrap && \
     make -f Makefile.ports makepackages
   

10. Build the ravynOS Core
    

    # not sure what unmounts this, but we need it in the chroot
    mount_nullfs /usr/src ${PORTSROOT}/usr/src
    chroot ${PORTSROOT} /usr/bin/zsh
    # TODO: zsh port should be modified to just install to /bin
    ln /usr/bin/zsh /bin/zsh
    cd /usr/src
    make COMPILER_TYPE=clang -f Makefile.ravynOS prep && \
    cp -fv share/mk/* /usr/share/mk/ && \
    make COMPILER_TYPE=clang -f Makefile.ravynOS
    # exit the chroot to install to the base system
    exit
    cd /usr/src
    make COMPILER_TYPE=clang -f Makefile.ravynOS install