Add netboot generator script
This commit is contained in:
Michael Aldridge
293
dracut/autoinstaller/install.sh
Executable file
293
dracut/autoinstaller/install.sh
Executable file
@@ -0,0 +1,293 @@
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#!/bin/sh
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set -e
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# These functions pulled from void's excellent mklive.sh
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VAI_info_msg() {
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printf "\033[1m%s\n\033[m" "$@"
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}
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VAI_print_step() {
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CURRENT_STEP=$((CURRENT_STEP+1))
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VAI_info_msg "[${CURRENT_STEP}/${STEP_COUNT}] $*"
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}
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# ----------------------- Install Functions ------------------------
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VAI_welcome() {
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clear
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printf "=============================================================\n"
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printf "================ Void Linux Auto-Installer ==================\n"
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printf "=============================================================\n"
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}
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VAI_get_address() {
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# Enable the hook for resolv.conf
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mkdir -p /usr/lib/dhcpcd/dhcpcd-hooks
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ln -sf /usr/libexec/dhcpcd-hooks/20-resolv.conf /usr/lib/dhcpcd/dhcpcd-hooks/
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# Get an IP address
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dhcpcd -w -L --timeout 0
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}
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VAI_partition_disk() {
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# Paritition Disk
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sfdisk "${disk}" <<EOF
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,$bootpartitionsize
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,${swapsize}K
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;
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EOF
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}
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VAI_format_disk() {
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# Make Filesystems
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mkfs.ext4 -F "${disk}1"
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mkfs.ext4 -F "${disk}3"
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if [ "${swapsize}" -ne 0 ] ; then
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mkswap -f "${disk}2"
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fi
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}
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VAI_mount_target() {
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# Mount targetfs
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mkdir -p "${target}"
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mount "${disk}3" "${target}"
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mkdir "${target}/boot"
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mount "${disk}1" "${target}/boot"
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}
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VAI_install_xbps_keys() {
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mkdir -p "${target}/var/db/xbps/keys"
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cp /var/db/xbps/keys/* "${target}/var/db/xbps/keys"
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}
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VAI_install_base_system() {
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# Install a base system
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XBPS_ARCH="${XBPS_ARCH}" xbps-install -Sy -R "${xbpsrepository}" -r /mnt base-system grub
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# Install additional packages
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if [ -n "${pkgs}" ] ; then
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XBPS_ARCH="${XBPS_ARCH}" xbps-install -Sy -R "${xbpsrepository}" -r /mnt "${pkgs}"
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fi
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}
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VAI_prepare_chroot() {
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# Mount dev, bind, proc, etc into chroot
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mount -t proc proc "${target}/proc"
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mount -t sysfs sys "${target}/sys"
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mount -o rbind /dev "${target}/dev"
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}
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VAI_configure_sudo() {
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# Give wheel sudo
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echo "%wheel ALL=(ALL) ALL" > "${target}/etc/sudoers.d/wheel"
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}
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VAI_correct_root_permissions() {
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chroot "${target}" chown root:root /
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chroot "${target}" chmod 755 /
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}
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VAI_configure_hostname() {
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# Set the hostname
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echo "${hostname}" > "${target}/etc/hostname"
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}
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VAI_configure_rc_conf() {
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# Set the value of various tokens
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sed -i "s:Europe/Madrid:${timezone}:" "${target}/etc/rc.conf"
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sed -i "s:\"es\":\"${keymap}\":" "${target}/etc/rc.conf"
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# Activate various tokens
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sed -i "s:#HARDWARECLOCK:HARDWARECLOCK:" "${target}/etc/rc.conf"
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sed -i "s:#TIMEZONE:TIMEZONE:" "${target}/etc/rc.conf"
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sed -i "s:#KEYMAP:KEYMAP:" "${target}/etc/rc.conf"
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}
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VAI_add_user() {
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chroot "${target}" useradd -m -s /bin/bash -U -G wheel,users,audio,video,cdrom,input "${username}"
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if [ -z "${password}" ] ; then
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chroot "${target}" passwd "${username}"
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else
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# For reasons that remain unclear, this does not work in musl
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echo "${username}:${password}" | chpasswd -c SHA512 -R "${target}"
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fi
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}
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VAI_configure_grub() {
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# Set hostonly
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echo "hostonly=yes" > "${target}/etc/dracut.conf.d/hostonly.conf"
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# Choose the newest kernel
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kernel_version="$(chroot "${target}" xbps-query linux | awk -F "[-_]" '/pkgver/ {print $2}')"
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# Install grub
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chroot "${target}" grub-install "${disk}"
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chroot "${target}" xbps-reconfigure -f "linux${kernel_version}"
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# Correct the grub install
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chroot "${target}" update-grub
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}
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VAI_configure_fstab() {
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# Grab UUIDs
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uuid1="$(blkid -s UUID -o value "${disk}1")"
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uuid2="$(blkid -s UUID -o value "${disk}2")"
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uuid3="$(blkid -s UUID -o value "${disk}3")"
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# Installl UUIDs into /etc/fstab
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echo "UUID=$uuid3 / ext4 defaults,errors=remount-ro 0 1" >> "${target}/etc/fstab"
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echo "UUID=$uuid1 /boot ext4 defaults 0 2" >> "${target}/etc/fstab"
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if [ "${swapsize}" -ne 0 ] ; then
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echo "UUID=$uuid2 swap swap defaults 0 0" >> "${target}/etc/fstab"
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fi
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}
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VAI_configure_locale() {
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# Set the libc-locale iff glibc
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case "${XBPS_ARCH}" in
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*-musl)
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VAI_info_msg "Glibc locales are not supported on musl"
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;;
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*)
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sed -i "/${libclocale}/s/#//" "${target}/etc/default/libc-locales"
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chroot "${target}" xbps-reconfigure -f glibc-locales
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;;
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esac
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}
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VAI_end_action() {
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case $end_action in
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reboot)
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VAI_info_msg "Rebooting the system"
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sync
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umount -R "${target}"
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reboot -f
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;;
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shutdown)
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VAI_info_msg "Shutting down the system"
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sync
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umount -R "${target}"
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poweroff -f
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;;
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script)
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VAI_info_msg "Running user provided script"
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xbps-uhelper fetch "${end_script}>/script"
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chmod +x /script
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target=${target} xbpsrepository=${xbpsrepository} /script
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;;
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func)
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VAI_info_msg "Running user provided function"
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end_function
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;;
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esac
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}
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VAI_configure_autoinstall() {
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# -------------------------- Setup defaults ---------------------------
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bootpartitionsize="500M"
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disk="$(lsblk -ipo NAME,TYPE,MOUNTPOINT | awk '{if ($2=="disk") {disks[$1]=0; last=$1} if ($3=="/") {disks[last]++}} END {for (a in disks) {if(disks[a] == 0){print a; break}}}')"
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hostname="$(ip -4 -o -r a | awk -F'[ ./]' '{x=$7} END {print x}')"
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swapsize="$(awk -F"\n" '/MemTotal/ {split($0, b, " "); print b[2] }' /proc/meminfo)";
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target="/mnt"
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timezone="America/Chicago"
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keymap="us"
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libclocale="en_US.UTF-8"
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username="voidlinux"
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end_action="shutdown"
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end_script="/bin/true"
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XBPS_ARCH="$(xbps-uhelper arch)"
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case $XBPS_ARCH in
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*-musl)
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xbpsrepository="https://repo.voidlinux.eu/current/musl"
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;;
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*)
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xbpsrepository="https://repo.voidlinux.eu/current"
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;;
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esac
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# --------------- Pull config URL out of kernel cmdline -------------------------
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if getargbool 0 autourl ; then
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xbps-uhelper fetch "$(getarg autourl)>/etc/autoinstall.cfg"
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else
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mv /etc/autoinstall.default /etc/autoinstall.cfg
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fi
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# Read in the resulting config file which we got via some method
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if [ -f /etc/autoinstall.cfg ] ; then
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VAI_info_msg "Reading configuration file"
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. ./etc/autoinstall.cfg
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fi
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# Bail out if we didn't get a usable disk
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if [ -z "$disk" ] ; then
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die "No valid disk!"
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fi
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}
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VAI_main() {
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CURRENT_STEP=0
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STEP_COUNT=16
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VAI_welcome
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VAI_print_step "Bring up the network"
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VAI_get_address
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VAI_print_step "Configuring installer"
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VAI_configure_autoinstall
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VAI_print_step "Configuring disk using scheme 'Atomic'"
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VAI_partition_disk
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VAI_format_disk
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VAI_print_step "Mounting the target filesystems"
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VAI_mount_target
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VAI_print_step "Installing XBPS keys"
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VAI_install_xbps_keys
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VAI_print_step "Installing the base system"
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VAI_install_base_system
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VAI_print_step "Granting sudo to default user"
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VAI_configure_sudo
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VAI_print_step "Setting hostname"
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VAI_configure_hostname
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VAI_print_step "Configure rc.conf"
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VAI_configure_rc_conf
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VAI_print_step "Preparing the chroot"
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VAI_prepare_chroot
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VAI_print_step "Fix ownership of /"
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VAI_correct_root_permissions
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VAI_print_step "Adding default user"
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VAI_add_user
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VAI_print_step "Configuring GRUB"
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VAI_configure_grub
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VAI_print_step "Configuring /etc/fstab"
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VAI_configure_fstab
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VAI_print_step "Configuring libc-locales"
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VAI_configure_locale
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VAI_print_step "Performing end-action"
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VAI_end_action
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}
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# If we are using the autoinstaller, launch it
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if getargbool 0 auto ; then
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VAI_main
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fi
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# Very important to release this before returning to dracut code
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set +e
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