pi.md

Pi

Table of Contents

• Pi
  • Table of Contents
  • Build Ubuntu
  • Raspberry Pi Buster Upgrade

Build Ubuntu

Download and start the emulator. Source: github.com/cirosantilli/linux-cheat

sudo apt install qemu-system-arm qemu-efi

iso=ubuntu-18.10-server-arm64.iso
img="${iso}.img.qcow2"

if [ ! -f "$iso" ]; then
  wget "http://cdimage.ubuntu.com/releases/18.10/release/${iso}"
fi
if [ ! -f "$img" ]; then
  qemu-img create -f qcow2 "$img" 25G
fi
if [ ! -f flash0.img ]; then
  dd if=/dev/zero of=flash0.img bs=1M count=64
  dd if=/usr/share/qemu-efi/QEMU_EFI.fd of=flash0.img conv=notrunc
fi
if [ ! -f flash1.img ]; then
  dd if=/dev/zero of=flash1.img bs=1M count=64
fi

qemu-system-aarch64 \
-cpu cortex-a57 \
-device rtl8139,netdev=net0 \
-device virtio-scsi-device \
-device scsi-cd,drive=cdrom \
-device virtio-blk-device,drive=hd0 \
-drive "file=${iso},id=cdrom,if=none,media=cdrom" \
-drive "if=none,file=${img},id=hd0" \
-m 4G \
-M virt \
-netdev user,id=net0 \
-nographic \
-pflash flash0.img \
-pflash flash1.img \
-smp 4 \
-net nic -net user,hostfwd=tcp::2222-:22

Upgrading packages can be a bit unstable and require multiple tries. Skip if you are on a hurry.

apt update
apt upgrade
apt autoremove

Build the linux iso.

apt install bzr dpkg-dev debhelper
bzr branch lp:~fo0bar/livecd-rootfs/raspi2-rpi3
cd raspi2-rpi3
dpkg-buildpackage -uc -us
dpkg -i ../*.deb
apt --fix-broken install
cd ..

cp -a /usr/share/livecd-rootfs/live-build/auto .
export ARCH=arm64
export SUITE=cosmic
export IMAGEFORMAT=ext4
export SUBARCH=raspi3
export PROJECT=ubuntu-cpc
lb config
lb build

Raspberry Pi Buster Upgrade

Upgrade the Raspberry Pi to Debian Buster. Currently Buster is testing and may contain bugs. Some packages do not work yet and are suggested to be removed. It may be necessary to manually upgrade apt sources in /etc/apt/sources.list.d/.

sudo apt purge freeipmi-ipmidetect freeipmi
sed -i -e 's/wheezy/buster/g' /etc/apt/sources.list
apt update
DEBIAN_FRONTEND=noninteractive DEBIAN_PRIORITY=critical apt -y -o "Dpkg::Options::=--force-confdef" -o "Dpkg::Options::=--force-confold" dist-upgrade
DEBIAN_FRONTEND=noninteractive DEBIAN_PRIORITY=critical apt -y -o "Dpkg::Options::=--force-confdef" -o "Dpkg::Options::=--force-confold" autoremove --purge
reboot