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