#! /bin/sh set -e # adapted from '/etc/kernel/postinst.d/zz-update-grub and # /usr/lib/kernel/install.d/90-loaderentry.install, see also # https://kernel-team.pages.debian.net/kernel-handbook/ch-update-hooks.html # - cleanup - gently delete all kernels not in kernel-keep-list if command -V systemd-detect-virt >/dev/null 2>&1 && systemd-detect-virt --quiet --container; then exit 0 fi cleanup() { for mount in "${MOUNTROOT}"/* ; do if echo "${mount}" | grep -qE '[0-9a-fA-F]{4}-[0-9a-fA-F]{4}' && \ mountpoint -q "${mount}"; then umount "${mount}" || \ { warn "umount of ${mount} failed - failure"; exit 0; } fi done } trap cleanup EXIT INT TERM QUIT . /usr/share/pve-kernel-helper/scripts/functions LOADER_TITLE="Proxmox Virtual Environment" if [ -d /etc/pve/ ]; then LOADER_TITLE="Proxmox Virtual Environment" elif [ -d /usr/share/doc/proxmox-mailgateway/ ]; then LOADER_TITLE="Proxmox Mailgateway" elif [ -d /usr/share/doc/proxmox-backup/ ]; then LOADER_TITLE="Proxmox Backup Server" fi update_esps() { if [ ! -f "${ESP_LIST}" ]; then warn "No ${ESP_LIST} found, skipping ESP sync." exit 0 fi if [ -f /etc/kernel/cmdline ]; then # we can have cmdline files with multiple or no new line at all, handle both! CMDLINE=$(get_first_line /etc/kernel/cmdline) echo ${CMDLINE} | grep -q 'root=' || \ { warn "No root= parameter in /etc/kernel/cmdline found!"; exit 1; } else warn "No /etc/kernel/cmdline found - falling back to /proc/cmdline" # remove initrd entries CMDLINE="$(perl -pe 's/\binitrd=([0-9a-zA-Z\\\/.-])*\s*//g;' /proc/cmdline)" fi loop_esp_list update_esp_func } update_esp_func() { if ! (echo "${curr_uuid}" | grep -qE '[0-9a-fA-F]{4}-[0-9a-fA-F]{4}'); then warn "WARN: ${curr_uuid} read from ${ESP_LIST} does not look like a VFAT-UUID - skipping" return fi path="/dev/disk/by-uuid/$curr_uuid" if [ ! -e "${path}" ]; then warn "WARN: ${path} does not exist - clean '${ESP_LIST}'! - skipping" return fi mountpoint="${MOUNTROOT}/${curr_uuid}" mkdir -p "${mountpoint}" || \ { warn "creation of mountpoint ${mountpoint} failed - skipping"; return; } mount "${path}" "${mountpoint}" || \ { warn "mount of ${path} failed - skipping"; return; } if [ -d /sys/firmware/efi ]; then if [ ! -f "${mountpoint}/$PMX_LOADER_CONF" ]; then warn "${path} contains no loader.conf - skipping" return fi if [ ! -d "${mountpoint}/$PMX_ESP_DIR" ]; then warn "${path}/$PMX_ESP_DIR does not exist- skipping" return fi elif [ ! -d "${mountpoint}/grub" ]; then warn "${path} contains no grub directory - skipping" return fi warn "Copying and configuring kernels on ${path}" copy_and_config_kernels "${mountpoint}" pinned_kernel=$(get_first_line "${PINNED_KERNEL_CONF}") if [ -e "${NEXT_BOOT_PIN}" ]; then pinned_kernel=$(get_first_line "${NEXT_BOOT_PIN}") fi if [ -d /sys/firmware/efi ]; then set_systemd_boot_default "${mountpoint}" "${pinned_kernel}" remove_old_kernels_efi "${mountpoint}" else set_grub_default "${pinned_kernel}" remove_old_kernels_legacy "${mountpoint}" mount --bind "${mountpoint}" "/boot" update-grub umount /boot fi umount "${mountpoint}" || \ { warn "umount of ${path} failed - failure"; exit 0; } rmdir "${mountpoint}" || true } copy_and_config_kernels() { esp="$1" for kver in ${BOOT_KVERS}; do linux_image="/boot/vmlinuz-${kver}" initrd="/boot/initrd.img-${kver}" if [ ! -f "${linux_image}" ]; then warn "No linux-image ${linux_image} found - skipping" continue fi if [ ! -f "${initrd}" ]; then warn "No initrd-image ${initrd} found - skipping" continue fi if [ -d /sys/firmware/efi ]; then warn " Copying kernel and creating boot-entry for ${kver}" KERNEL_ESP_DIR="${PMX_ESP_DIR}/${kver}" KERNEL_LIVE_DIR="${esp}/${KERNEL_ESP_DIR}" mkdir -p "${KERNEL_LIVE_DIR}" cp --preserve=timestamps "${linux_image}" "${KERNEL_LIVE_DIR}/" cp --preserve=timestamps "${initrd}" "${KERNEL_LIVE_DIR}/" # create loader entry cat > "${esp}/loader/entries/proxmox-${kver}.conf" <<- EOF title ${LOADER_TITLE} version ${kver} options ${CMDLINE} linux /${KERNEL_ESP_DIR}/vmlinuz-${kver} initrd /${KERNEL_ESP_DIR}/initrd.img-${kver} EOF else warn " Copying kernel ${kver}" cp --preserve=timestamps "${linux_image}" "${esp}/" cp --preserve=timestamps "${initrd}" "${esp}/" fi done } remove_old_kernels_efi() { esp="$1" for kerneldir in "${esp}/${PMX_ESP_DIR}"/*; do if [ ! -d "${kerneldir}" ]; then warn " ${kerneldir} is not a directory - skipping" continue fi kver="$(echo "${kerneldir}" | sed -r "s#^${esp}/${PMX_ESP_DIR}/(.+)\$#\\1#")" echo "${BOOT_KVERS}" | grep -q "${kver}" && continue; warn " Removing old version ${kver}" rm -rf "${kerneldir}" rm -f "${esp}/loader/entries/proxmox-${kver}.conf" done } remove_old_kernels_legacy() { esp="$1" for kernel in "${esp}/"vmlinuz-*; do kver="$(echo "${kernel}" | sed -r "s#^${esp}/vmlinuz-(.+)\$#\\1#")" echo "${BOOT_KVERS}" | grep -q "${kver}" && continue; warn " Removing old version ${kver}" rm -rf "${esp}/vmlinuz-${kver}" rm -rf "${esp}/initrd.img-${kver}" done } set -- $DEB_MAINT_PARAMS mode="${1#\'}" mode="${mode%\'}" case $0:$mode in # Only run on postinst configure and postrm remove, to avoid wasting # time by calling update-grub multiple times on upgrade and removal. # Also run if we have no DEB_MAINT_PARAMS, in order to work with old # kernel packages. */postinst.d/*:|*/postinst.d/*:configure) reexec_in_mountns "$@" BOOT_KVERS="$(boot_kernel_list "$@")" update_esps ;; */postrm.d/*:|*/postrm.d/*:remove) reexec_in_mountns "$@" # no newly installed kernel BOOT_KVERS="$(boot_kernel_list)" update_esps ;; esac exit 0