iankelling.org Git - automated-distro-installer/blob - fai/config/distro-install-common/install-stable-kernel-debs

   1 #!/bin/bash
   2 # This file is part of Ian Kelling's automated-distro-installer
   3 # Copyright (C) 2024 Ian Kelling
   4
   5 # This program is free software; you can redistribute it and/or
   6 # modify it under the terms of the GNU General Public License
   7 # as published by the Free Software Foundation; either version 2
   8 # of the License, or (at your option) any later version.
   9
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; if not, write to the Free Software
  17 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18
  19 set -eE -o pipefail
  20 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR
  21
  22 [[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@"
  23
  24 set -x
  25
  26 prereqs=()
  27 for p in wget curl; do
  28   if ! type -p $p &>/dev/null; then
  29     prereqs+=($p)
  30   fi
  31 done
  32 if (( ${#prereqs[@]} >= 1 )); then
  33   apt-get -y install ${prereqs[@]}
  34 fi
  35
  36
  37 tmpdir=$($ROOTCMD mktemp -d) || exit
  38 outertmp=$target/$tmpdir
  39 trap 'cd; rm -rf "$outertmp"' EXIT
  40 cd $outertmp
  41
  42 # update stable_ver when we are ready to jump to a new stable kernel.
  43 # Stable kernels are listed here: https://www.kernel.org/category/releases.html
  44 stable_ver='6\.6'
  45 # Actually, I dont want stable right now. comment this out to get stable
  46 # version.
  47 stable_ver='[1-9]'
  48 va=$(curl -s https://kernel.ubuntu.com/mainline/ | \
  49        sed -rn 's,.*alt="\[DIR\]".*href="([^/]+).*,\1,p' | \
  50        grep -v -- -rc | sed 's/^v//' | grep "^$stable_ver" | sort -V | tail -n1)
  51
  52 # note the wiki page about these says to install linux-headers.*generic.*amd64, but
  53 # as of 2024, they have a requirement of a very new glibc, and people report
  54 # that installing it is not needed.
  55 tmpstr=$(curl -s https://kernel.ubuntu.com/mainline/v$va/amd64/CHECKSUMS | awk '$2 ~ /^linux-/ { print $2 }' | sort -u | grep -iv 'linux-headers.*generic.*amd64' )
  56 mapfile -t pkgs <<<"$tmpstr"
  57
  58 if (( ${#pkgs[@]} != 3 )); then
  59   echo "$0: error. expected to find 3 kernel packages, got: ${pkgs[*]}" >&2
  60   exit 1
  61 fi
  62
  63 urls=()
  64 for p in ${pkgs[@]}; do
  65   if ! $ROOTCMD dpkg -s -- "${p%%_*}"  2>&1 | grep -Fx "Status: install ok installed" &>/dev/null; then
  66     urls+=(https://kernel.ubuntu.com/mainline/v$va/amd64/$p)
  67   fi
  68 done
  69 if (( ${#urls[@]} >= 1 )); then
  70   wget -nv "${urls[@]}"
  71   $ROOTCMD dpkg -i ${pkgs[@]/#/$tmpdir/}
  72 fi