efiboot/functions

   1 #! /bin/sh
   2 set -e
   3
   4 ESP_LIST="/etc/kernel/pve-efiboot-uuids"
   5 ESPTYPE='c12a7328-f81f-11d2-ba4b-00a0c93ec93b'
   6
   7 MANUAL_KERNEL_LIST="/etc/kernel/pve-efiboot-manual-kernels"
   8
   9 # relative to the ESP mountpoint
  10 PMX_ESP_DIR="EFI/proxmox"
  11 PMX_LOADER_CONF="loader/loader.conf"
  12
  13 # adapted from /etc/kernel/postinst.d/apt-auto-removal as present in
  14 # debian's apt package:
  15 #
  16 # Mark as not-for-autoremoval those kernel packages that are:
  17 #  - the currently booted version
  18 #  - the kernel version we've been called for
  19 #  - the latest kernel version (as determined by debian version number)
  20 #  - the second-latest kernel version
  21 #  - the latest kernel version of each series (e.g. 4.13, 4.15, 5.0) by
  22 #    marking the meta-packages
  23
  24 kernel_keep_versions() {
  25         eval "$(apt-config shell DPKG Dir::bin::dpkg/f)"
  26         test -n "$DPKG" || DPKG="/usr/bin/dpkg"
  27
  28         list="$("${DPKG}" -l | awk '/^[ih][^nc][ ]+pve-kernel-[0-9]+\./ && $2 !~ /-dbg(:.*)?$/ && $2 !~ /-dbgsym(:.*)?$/ { print $2; }' \
  29            | sed -e 's#^pve-kernel-##' -e 's#:[^:]\+ # #')"
  30
  31         sorted_list="$(echo "$list" | sort --unique --reverse --version-sort)"
  32
  33         [ -n "$1" ] && install_version="$1"
  34
  35         running_version="$(uname -r | tr 'A-Z' 'a-z')"
  36
  37         # ignore the currently running version if attempting a reproducible build
  38         if [ -n "${SOURCE_DATE_EPOCH}" ]; then
  39                 running_version=""
  40         fi
  41
  42         latest_2_versions="$(echo "$sorted_list" | grep -E '^[^ ]+-pve' | head -n2 )"
  43
  44         series_metapackages="$(echo "$sorted_list" | grep -Ev '^[^ ]+-pve' | head -n2)"
  45
  46         oldseries="$(echo "$series_metapackages" | tail -n1)"
  47         oldseries_latest_kernel="$(echo "$sorted_list" | grep -E "^${oldseries}\.[^ ]+-pve" | head -n1 )"
  48
  49         if [ -e "$MANUAL_KERNEL_LIST" ]; then
  50                 manual_kernels="$(cat "$MANUAL_KERNEL_LIST")"
  51         fi
  52
  53         kernels="$(cat <<-EOF
  54                 $running_version
  55                 $install_version
  56                 $manual_kernels
  57                 $latest_2_versions
  58                 $series_metapackages
  59                 $oldseries_latest_kernel
  60                 EOF
  61         )"
  62
  63         echo "$kernels" | sort -u | sed -e '/^$/ d'
  64 }
  65
  66 #bootable kernels are the same as the no_autoremove ones without the meta-package
  67 boot_kernel_list() {
  68         list="$(kernel_keep_versions "$@")"
  69
  70         echo "$list" | grep -E '^[^ ]+-pve' || true
  71 }
  72
  73 warn() {
  74         echo "$@" 1>&2
  75 }
  76
  77 reexec_in_mountns() {
  78         if [ -z "$PVE_EFIBOOT_UNSHARED" ]; then
  79                 export PVE_EFIBOOT_UNSHARED=1
  80                 echo "Re-executing '$0' in new private mount namespace.."
  81                 unshare --mount --propagation private "$0" "$@"
  82                 exit 0
  83         fi
  84 }
  85
  86 loop_esp_list() {
  87         if [ ! -e ${ESP_LIST} ]; then
  88                 return 2
  89         fi
  90
  91         cat "${ESP_LIST}" | while IFS= read -r curr_uuid; do
  92                 if [ -z "$curr_uuid" ]; then
  93                         continue
  94                 fi
  95                 "$@"
  96         done
  97 }