Add MAAS support
- unfinished
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89
build.sh
89
build.sh
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@ -1,26 +1,56 @@
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#!/bin/bash
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OS_CODENAME=focal
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OS_VERSION=20.04
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DEV=/dev/nbd0
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TYPE=cloud
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DOWNLOAD=yes
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MAAS_ID=20220524
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#sudo apt -yq install syslinux syslinux-common syslinux-efi extlinux
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mkdir -p build mnt out
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if [ ${TYPE} == cloud ]; then
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ROOTPART="${DEV}p1"
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else
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BOOTPART="${DEV}p1"
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ROOTPART="${DEV}p2"
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fi
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function download(){
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if [ -z "$DOWNLOAD" ]; then
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return
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fi
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echo "Downloading"
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#wget -O build/initrd.img https://cloud-images.ubuntu.com/$OS_CODENAME/current/unpacked/${OS_CODENAME}-server-cloudimg-amd64-initrd-generic
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#wget -O build/vmlinuz https://cloud-images.ubuntu.com/${OS_CODENAME}/current/unpacked/${OS_CODENAME}-server-cloudimg-amd64-vmlinuz-generic
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#wget -O build/rootfs.tar.xz https://cloud-images.ubuntu.com/${OS_CODENAME}/current/${OS_CODENAME}-server-cloudimg-amd64-root.tar.xz
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if [ ${TYPE} == "cloud" ]; then
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wget -O build/${TYPE}/initrd.img \
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https://cloud-images.ubuntu.com/$OS_CODENAME/current/unpacked/${OS_CODENAME}-server-cloudimg-amd64-initrd-generic
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wget -O build/${TYPE}/vmlinuz \
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https://cloud-images.ubuntu.com/${OS_CODENAME}/current/unpacked/${OS_CODENAME}-server-cloudimg-amd64-vmlinuz-generic
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wget -O build/${TYPE}/rootfs.tar.xz \
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https://cloud-images.ubuntu.com/${OS_CODENAME}/current/${OS_CODENAME}-server-cloudimg-amd64-root.tar.xz
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else
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wget -O build/${TYPE}/initrd.img \
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https://images.maas.io/ephemeral-v3/stable/${OS_CODENAME}/amd64/${MAAS_ID}/ga-${OS_VERSION}/boot-initrd
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wget -O build/${TYPE}/vmlinuz \
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https://images.maas.io/ephemeral-v3/stable/${OS_CODENAME}/amd64/${MAAS_ID}/ga-${OS_VERSION}/boot-kernel
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wget -O build/${TYPE}/rootfs.squashfs \
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https://cloud-images.ubuntu.com/${OS_CODENAME}/amd64/${MAAS_ID}/squashfs
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fi
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}
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KERNEL_VERSION="$(file build/vmlinuz |cut -d, -f2|cut -d\ -f3)"
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sudo apt -yq install syslinux syslinux-common syslinux-efi extlinux f2fs-tools
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mkdir -p build/${TYPE} mnt out squashmount
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download
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KERNEL_VERSION="$(file build/${TYPE}/vmlinuz |cut -d, -f2|cut -d\ -f3)"
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echo "Detected kernel ${KERNEL_VERSION}"
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echo "Creating empty image"
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qemu-img create -f qcow2 build/ubuntu-${OS_CODENAME}.qcow2 2G || exit 1
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qemu-img create -f qcow2 build/${TYPE}/ubuntu-${OS_CODENAME}.qcow2 2G || exit 1
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echo "attaching image"
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sudo modprobe nbd
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sudo qemu-nbd -c "${DEV}" build/ubuntu-${OS_CODENAME}.qcow2 || exit 1
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sudo qemu-nbd -c "${DEV}" build/${TYPE}/ubuntu-${OS_CODENAME}.qcow2 || exit 1
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echo "partitioning"
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sudo parted -s "${DEV}" -- \
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@ -32,25 +62,44 @@ until [ -b "${DEV}1" ] || [ -b "${DEV}p1" ]; do
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sleep 1
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done
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echo "installing hybrid bootloader"
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sudo dd bs=440 count=1 conv=notrunc \
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if=/usr/lib/syslinux/mbr/gptmbr.bin of="$DEV" 2> /dev/null
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sync
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if [ ${TYPE} == "cloud" ]; then
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echo "mkfs.btrfs"
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sudo mkfs.btrfs -L cloudimg-rootfs "${DEV}p1" || exit 1
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sudo mkfs.btrfs -L rootfs ${ROOTPART}" || exit 1
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else
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echo "mkfs.btrfs"
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sudo mkfs.btrfs -L boot ${BOOTPART}" || exit 1
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echo "mkfs.f2fs"
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sudo mkfs.f2fs -l rootfs -O extra_attr,inode_checksum,sb_checksum,compression ${ROOTPART} || exit 1
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fi
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sync
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echo "mounting root"
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sudo mount -t btrfs "${DEV}p1" mnt || exit 1
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if [ ${TYPE} == "cloud" ]; then
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sudo mount -t btrfs ${ROOTPART} mnt || exit 1
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else
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sudo mount -t f2fs ${ROOTPART} mnt || exit 1
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sudo mkdir -p mnt/boot
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sudo mount -t btrfs ${BOOTPART} mnt/boot || exit 1
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fi
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echo "unpacking root fs"
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sudo tar xJf build/rootfs.tar.xz -C mnt || exit 1
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if [ ${TYPE} == "cloud" ]; then
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sudo tar xJf build/${TYPE}/rootfs.tar.xz -C mnt || exit 1
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else
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sudo mount -t squashfs build/${TYPE}/rootfs.squashfs squashmount -o ro,loop || exit 1
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cp -ar squashmount/. mnt
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fi
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echo "installing kernel and inintd"
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sudo mkdir -p mnt/boot
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sudo cp -ar build/initrd.img "mnt/boot/initrd.img-${KERNEL_VERSION}"
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sudo cp -ar build/vmlinuz "mnt/boot/vmlinuz-${KERNEL_VERSION}"
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sudo cp -ar build/${TYPE}/initrd.img "mnt/boot/initrd.img-${KERNEL_VERSION}"
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sudo cp -ar build/${TYPE}/vmlinuz "mnt/boot/vmlinuz-${KERNEL_VERSION}"
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sudo ln -s "vmlinuz-${KERNEL_VERSION}" mnt/boot/vmlinuz
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sudo ln -s "initrd.img-${KERNEL_VERSION}" mnt/boot/initrd.img
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@ -65,20 +114,28 @@ if [ -n "$1" ]; then
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fi
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echo "here is the fstab"
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echo "LABEL=cloudimg-rootfs / btrfs defaults 0 1" | sudo tee mnt/etc/fstab
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if [ ${TYPE} == "cloud" ]; then
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echo "LABEL=rootfs / btrfs defaults 0 1" | sudo tee mnt/etc/fstab
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else
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echo "LABEL=rootfs / f2fs defaults 0 1" | sudo tee mnt/etc/fstab
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echo "LABEL=boot /boot btrfs defaults 0 1" | sudo tee -a mnt/etc/fstab
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fi
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echo "installing syslinux bootloader"
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sudo extlinux -i mnt/boot/syslinux
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echo "umounting"
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sync
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if [ ${TYPE} != "cloud" ]; then
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umount /mnt/boot
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fi
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sudo umount mnt
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echo "detaching"
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sudo qemu-nbd -d "${DEV}"
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echo "compressing"
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qemu-img convert -cpO qcow2 build/ubuntu-${OS_CODENAME}.qcow2 out/ubuntu-${OS_CODENAME}.qcow2
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qemu-img convert -cpO qcow2 build/${TYPE}/ubuntu-${OS_CODENAME}.qcow2 out/ubuntu-${OS_CODENAME}-${TYPE}.qcow2
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# rm -f out/ubuntu-${OS_CODENAME}.qcow2
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echo "done"
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