Create generate-zbm which can be used to manage the lifecycle of the
initramfs, kernel and combined EFI image needed to boot a system. This script is considered beta, ensure you have backups of the files in your ESP before using it. Remove old void packages
This commit is contained in:
Zach Dykstra
parent
1c993bf20c
commit
8707518746
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@ -0,0 +1 @@
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-i=2 --maximum-line-length=120 -ce -cb
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@ -26,6 +26,14 @@ else
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import_args="-o readonly=on -N"
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fi
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# Set a menu timeout, to allow immediate booting
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menu_timeout=$( getarg timeout=)
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if [ -n "${menu_timeout}" ]; then
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info "ZFSBootMenu: Setting menu timeout from command line: ${menu_timeout}"
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else
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menu_timeout=10
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fi
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wait_for_zfs=0
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case "${root}" in
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""|zfsbootmenu|zfsbootmenu:)
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@ -70,50 +70,57 @@ done <<<"${datasets}"
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# If BOOTFS is not empty display the fast boot menu
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fast_boot=0
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if [[ ! -z "${BOOTFS}" ]]; then
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# Clear the screen
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tput civis
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HEIGHT=$(tput lines)
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WIDTH=$(tput cols)
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tput clear
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# Draw the line centered on the screen
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mes="[ENTER] to boot"
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x=$(( ($HEIGHT - 0) / 2 ))
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y=$(( ($WIDTH - ${#mes}) / 2 ))
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tput cup $x $y
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echo -n ${mes}
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# Draw the line centered on the screen
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mes="[ESC] boot menu"
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x=$(( $x + 1 ))
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y=$(( ($WIDTH - ${#mes}) / 2 ))
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tput cup $x $y
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echo -n ${mes}
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x=$(( $x + 1 ))
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tput cup $x $y
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IFS=''
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# Draw a countdown menu
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for (( i=10; i>0; i--)); do
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mes="$( printf 'Booting %s in %0.2d seconds' ${BOOTFS} ${i} )"
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if [[ ${menu_timeout} -gt 0 ]]; then
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# Clear the screen
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tput civis
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HEIGHT=$(tput lines)
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WIDTH=$(tput cols)
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tput clear
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# Draw the line centered on the screen
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mes="[ENTER] to boot"
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x=$(( ($HEIGHT - 0) / 2 ))
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y=$(( ($WIDTH - ${#mes}) / 2 ))
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tput cup $x $y
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echo -ne "${mes}"
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echo -n ${mes}
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# Wait 1 second for input
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read -s -N 1 -t 1 key
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# Escape key
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if [ "$key" = $'\e' ]; then
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break
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# Enter key
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elif [ "$key" = $'\x0a' ]; then
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fast_boot=1
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break
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fi
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done
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IFS="${OLDIFS}"
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# Draw the line centered on the screen
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mes="[ESC] boot menu"
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x=$(( $x + 1 ))
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y=$(( ($WIDTH - ${#mes}) / 2 ))
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tput cup $x $y
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echo -n ${mes}
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x=$(( $x + 1 ))
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tput cup $x $y
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IFS=''
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for (( i=${menu_timeout}; i>0; i--)); do
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mes="$( printf 'Booting %s in %0.2d seconds' ${BOOTFS} ${i} )"
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y=$(( ($WIDTH - ${#mes}) / 2 ))
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tput cup $x $y
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echo -ne "${mes}"
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# Wait 1 second for input
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read -s -N 1 -t 1 key
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# Escape key
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if [ "$key" = $'\e' ]; then
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break
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# Enter key
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elif [ "$key" = $'\x0a' ]; then
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fast_boot=1
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break
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fi
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done
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IFS="${OLDIFS}"
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elif [[ ${menu_timeout} -eq 0 ]]; then
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# Bypass the menu, immediately boot $BOOTFS
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fast_boot=1
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else
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# Make sure we bypass the other fastboot check
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i=1
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fi
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# Boot up if we timed out, or if the enter key was pressed
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if [[ ${fast_boot} -eq 1 || $i -eq 0 ]]; then
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@ -0,0 +1,240 @@
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#!/usr/bin/env perl
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use strict;
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use warnings;
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our $VERSION = '0.7.3';
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use Getopt::Long qw(:config no_ignore_case auto_version);
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use Pod::Usage qw(pod2usage);
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use File::Basename;
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use Sys::Hostname;
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use Config::IniFiles;
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use File::Temp qw(tempfile tempdir);
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use File::Copy;
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use File::Path qw(make_path remove_tree);
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use Data::Dumper;
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$Data::Dumper::Indent = 1;
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$Data::Dumper::Sortkeys = 1;
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$Data::Dumper::Purity = 1;
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sub latestKernel;
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sub createInitramfs;
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sub unifiedEFI;
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sub execute;
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my ( %runConf, %config, %components );
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my $configfile = "/etc/zfsbootmenu/config.ini";
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my $version_file = "/usr/share/zfsbootmenu/VERSION";
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$runConf{bootdir} = "/boot";
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$runConf{confd} = "/usr/share/zfsbootmenu/dracut.conf.d";
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GetOptions(
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"version|v=s" => \$runConf{version},
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"pkgname|p=s" => \$runConf{pkgname},
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"action|a=s" => \$runConf{action},
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"update|u=s" => \$runConf{update},
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"kernel|k=s" => \$runConf{kernel},
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"bootdir|b=s" => \$runConf{bootdir},
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"confd|C=s" => \$runConf{confd},
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"config|c=s" => \$configfile,
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);
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# Sanity check, ensure we have a configuration file
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unless ( -f $configfile ) {
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print "$configfile missing, exiting\n";
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exit;
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}
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# Read our config into a hash
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tie %config, 'Config::IniFiles', ( -file => $configfile );
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unless ( ( defined $config{Global}{ManageImages} ) and ( $config{Global}{ManageImages} ) ) {
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print "ManageImages not enabled, no action taken\n";
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exit;
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}
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# Override the location of our specific dracut.conf.d directory
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if ( defined $config{Global}{DracutConfDir} ) {
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$runConf{confd} = $config{Global}{DracutConfDir};
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}
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# Sanity check that we can determine the version of zfsbootmenu
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unless ( defined $runConf{version} ) {
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if ( -f $version_file ) {
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print "Found $version_file\n";
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open(my $fh, '<', $version_file);
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read $fh, $runConf{version}, -s $fh;
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close($fh);
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chomp($runConf{version});
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} else {
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print "Unable to determine version\n";
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exit;
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}
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}
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# Create a temp directory
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# It is automatically purged on program exit
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my $dir = File::Temp->newdir();
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my $tempdir = $dir->dirname;
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# Set our kernel from the CLI, or pick the latest available in /boot
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if ( ( defined $runConf{kernel} ) and ( length $runConf{kernel} ) ) {
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unless ( -f $runConf{kernel} ) {
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printf "The provided kernel %s was not found, unable to continue", $runConf{kernel};
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exit;
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}
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} else {
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$runConf{kernel} = latestKernel;
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}
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$runConf{bootdir} = dirname( $runConf{kernel} );
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( $runConf{kernel_prefix}, $runConf{kernel_version} ) = split( '-', basename( $runConf{kernel} ) );
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# We always need to create an initramfs
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printf "Creating ZFS Boot Menu %s, with %s %s\n", $runConf{version}, $runConf{kernel_prefix}, $runConf{kernel_version};
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$runConf{initramfs} = createInitramfs( $tempdir, $runConf{kernel_version} );
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if ( defined( $config{EFI}{Copies} ) and ( $config{EFI}{Copies} gt 0 ) ) {
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$runConf{unified_efi} = unifiedEFI( $tempdir, $runConf{kernel}, $runConf{initramfs} );
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if ( defined( $config{EFI}{Versioned} ) and ( $config{EFI}{Versioned} ) ) {
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$runConf{efi_target} = sprintf( "%s/ZFSBootMenu-%s.EFI", $config{EFI}{ImageDir}, $runConf{version} );
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} else {
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$runConf{efi_target} = sprintf( "%s/ZFSBootMenu.EFI", $config{EFI}{ImageDir} );
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}
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my $glob = join( '/', ( $config{EFI}{ImageDir}, "ZFSBootMenu*.EFI" ) );
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my @efi = sort glob($glob);
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my $index = 0;
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foreach my $entry (@efi) {
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if ( $entry eq $runConf{efi_target} ) {
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splice @efi, $index, 1;
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}
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$index++;
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}
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printf "Found %s existing images, allowed to have a total of %s\n", scalar @efi, $config{EFI}{Copies};
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while ( scalar @efi > $config{EFI}{Copies} ) {
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my $image = shift(@efi);
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printf "Removing %s\n", $image;
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unlink $image;
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}
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copy $runConf{unified_efi}, $runConf{efi_target};
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printf "Created a unified EFI at %s\n", $runConf{efi_target};
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}
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if ( defined( $config{Components}{Copies} ) and ( $config{Components}{Copies} gt 0 ) ) {
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if ( defined( $config{Components}{Versioned} ) and ( $config{Components}{Versioned} ) ) {
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$runConf{kernel_target} =
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sprintf( "%s/%s-%s", $config{Components}{ImageDir}, $runConf{kernel_prefix}, $runConf{version} );
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$runConf{initramfs_target} = sprintf( "%s/initramfs-%s.img", $config{Components}{ImageDir}, $runConf{version} );
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my $glob = sprintf( "%s/%s-*", $config{Components}{ImageDir}, $runConf{kernel_prefix} );
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my @components = sort glob($glob);
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# Drop the component count if the entry we're making already exists
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my $index = 0;
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foreach my $entry (@components) {
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if ( $entry eq $runConf{kernel_target} ) {
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splice @components, $index, 1;
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}
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$index++;
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}
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printf "Found %s existing images, allowed to have a total of %s\n", scalar @components, $config{Components}{Copies};
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while ( scalar @components > $config{Components}{Copies} ) {
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my $kernel = shift(@components);
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my $initramfs = sprintf( "%s.img", $kernel );
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$initramfs =~ s/\Q$runConf{kernel_prefix}/initramfs/;
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printf "Removing %s, %s\n", $kernel, $initramfs;
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unlink $kernel;
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unlink $initramfs;
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}
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} else {
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$runConf{kernel_target} = sprintf( "%s/%s-bootmenu", $config{Components}{ImageDir}, $runConf{kernel_prefix} );
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$runConf{kernel_backup} =
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sprintf( "%s/%s-bootmenu-backup", $config{Components}{ImageDir}, $runConf{kernel_prefix} );
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$runConf{initramfs_target} = sprintf( "%s/initramfs-bootmenu.img", $config{Components}{ImageDir} );
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$runConf{initramfs_backup} = sprintf( "%s/initramfs-bootmenu-backup.img", $config{Components}{ImageDir} );
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if ( -f $runConf{kernel_target} ) {
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copy $runConf{kernel_target}, $runConf{kernel_backup};
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copy $runConf{initramfs_target}, $runConf{initramfs_backup};
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printf "Created %s, %s\n", $runConf{kernel_backup}, $runConf{initramfs_backup};
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}
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}
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copy $runConf{kernel}, $runConf{kernel_target};
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copy $runConf{initramfs}, $runConf{initramfs_target};
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printf "Created %s, %s\n", $runConf{kernel_target}, $runConf{initramfs_target};
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}
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# Finds the latest kernel in /boot
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sub latestKernel {
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my @prefixes = ( "vmlinux*", "vmlinuz*", "linux*", "kernel*" );
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for my $prefix (@prefixes) {
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my $glob = join( '/', ( $runConf{bootdir}, $prefix ) );
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my @kernels = sort glob($glob);
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next if !@kernels;
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return pop @kernels;
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}
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}
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# Returns the path to an initramfs, or dies with an error
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sub createInitramfs {
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my ( $temp, $kver ) = @_;
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my $output_file = join( '/', $temp, "zfsbootmenu" );
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my @cmd = ( qw(dracut -q -f --confdir), $runConf{confd}, $output_file, qw(--kver), $kver, );
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my ( $output, $status ) = execute(@cmd);
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if ( $status eq 0 ) {
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return $output_file;
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} else {
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print $output;
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die "Failed to create $output_file";
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}
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}
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sub unifiedEFI {
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my ( $temp, $kernel, $initramfs ) = @_;
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my $output_file = join( '/', $temp, "zfsbootmenu.efi" );
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my $cmdline_file = join( '/', $temp, "cmdline.txt" );
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my $cmdline = $config{Kernel}{CommandLine};
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open( my $fh, '>', $cmdline_file );
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print $fh $cmdline;
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close($fh);
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my @cmd = (
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qw(objcopy),
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qw(--add-section .osrel=/etc/os-release --change-section-vma .osrel=0x20000),
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qq(--add-section .cmdline=$cmdline_file),
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qw(--change-section-vma .cmdline=0x30000),
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qq(--add-section .linux=$kernel),
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qw(--change-section-vma .linux=0x40000),
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qq(--add-section .initrd=$initramfs),
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qw(--change-section-vma .initrd=0x3000000),
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qw(/usr/lib/gummiboot/linuxx64.efi.stub),
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$output_file
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);
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my ( $output, $status ) = execute(@cmd);
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if ( $status eq 0 ) {
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return $output_file;
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} else {
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print $output;
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die "Failed to create $output_file";
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}
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}
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sub execute {
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( $_ = qx{@_ 2>&1}, $? >> 8 );
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}
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@ -1,2 +0,0 @@
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MANAGE_IMAGES=0
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IMAGE_DIR=boot/efi
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@ -1,2 +0,0 @@
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CREATE_BOOT_IMAGE=0
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IMAGE_DIR=/efi
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@ -0,0 +1,16 @@
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[Global]
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ManageImages=0
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DracutConfDir=/etc/zfsbootmenu/dracut.conf.d
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[Kernel]
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CommandLine="ro quiet loglevel=0"
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[Components]
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ImageDir=/boot/efi/EFI/void
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Versioned=1
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Copies=3
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[EFI]
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ImageDir=/boot/efi/EFI/void
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Versioned=1
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Copies=0
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@ -1,4 +1,3 @@
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nofsck="yes"
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hostonly="yes"
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add_dracutmodules+=" zfsbootmenu "
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omit_dracutmodules+=" btrfs zfs resume "
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|
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@ -0,0 +1,2 @@
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"Boot Default BE" "ro quiet loglevel=0 timeout=0"
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"Select BE" "ro quiet loglevel=0 timeout=-1"
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Binary file not shown.
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@ -1,59 +0,0 @@
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#!/bin/sh
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CONF_FILE=etc/default/zfsbootmenu
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CONF_DIR=etc/zfsbootmenu/dracut.conf.d
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if [ -f ${CONF_FILE} ]; then
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. ${CONF_FILE}
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else
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echo "${CONF_FILE} missing"
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exit 0
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fi
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if [ "x${MANAGE_IMAGES}" != x1 ]; then
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echo "Set MANAGE_IMAGES=1 in ${CONF_FILE}"
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exit 0
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elif [ ! -d ${IMAGE_DIR} ]; then
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echo "${IMAGE_DIR} does not exist"
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exit 0
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fi
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case "${ACTION}" in
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pre)
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for KERNEL in vmlinux vmlinuz kernel linux; do
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if [ -f ${IMAGE_DIR}/${KERNEL}-zfsbootmenu ]; then
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cp ${IMAGE_DIR}/${KERNEL}-zfsbootmenu ${IMAGE_DIR}/${KERNEL}-zfsbootmenu-backup
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break
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fi
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done
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if [ -f ${IMAGE_DIR}/initramfs-zfsbootmenu.img ]; then
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cp ${IMAGE_DIR}/initramfs-zfsbootmenu.img ${IMAGE_DIR}/initramfs-zfsbootmenu-backup.img
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fi
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;;
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post)
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dracut -q -f --confdir ${CONF_DIR} ${IMAGE_DIR}/initramfs-zfsbootmenu.img
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KVER=$( uname -r )
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for KERNEL in vmlinux vmlinuz kernel linux; do
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if [ -f boot/${KERNEL}-${KVER} ]; then
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cp boot/${KERNEL}-${KVER} ${IMAGE_DIR}/${KERNEL}-zfsbootmenu
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break
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fi
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done
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# We always want both a primary and a backup image, even on the first run
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for KERNEL in vmlinux vmlinuz kernel linux; do
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if [ -f ${IMAGE_DIR}/${KERNEL}-zfsbootmenu ]; then
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if [ ! -f ${IMAGE_DIR}/${KERNEL}-zfsbootmenu-backup ]; then
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cp ${IMAGE_DIR}/${KERNEL}-zfsbootmenu ${IMAGE_DIR}/${KERNEL}-zfsbootmenu-backup
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fi
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break
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fi
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done
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if [ ! -f ${IMAGE_DIR}/initramfs-zfsbootmenu-backup.img ]; then
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cp ${IMAGE_DIR}/initramfs-zfsbootmenu.img ${IMAGE_DIR}/initramfs-zfsbootmenu-backup.img
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fi
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;;
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esac
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@ -1,2 +0,0 @@
|
|||
Refer to https://github.com/zdykstra/zfsbootmenu#installation for
|
||||
integration directions.
|
||||
|
|
@ -1,25 +0,0 @@
|
|||
# Template file for 'zfsbootmenu'
|
||||
pkgname=zfsbootmenu
|
||||
version=0.7.2
|
||||
revision=1
|
||||
conf_files="/etc/default/zfsbootmenu
|
||||
/etc/zfsbootmenu/dracut.conf.d/zfsbootmenu.conf"
|
||||
archs=noarch
|
||||
short_desc="ZFSBootMenu implemented in Dracut"
|
||||
maintainer="Zach Dykstra <dykstra.zachary@gmail.com>"
|
||||
license="MIT"
|
||||
homepage="https://github.com/zdykstra/zfsbootmenu"
|
||||
distfiles="https://github.com/zdykstra/zfsbootmenu/archive/v${version}.tar.gz"
|
||||
checksum=@554e31860459c51c10d2fb908b55dd024db2b10b5d360b5ea6426cdbed5161e6
|
||||
|
||||
do_install() {
|
||||
vmkdir usr/lib/dracut/modules.d
|
||||
vmkdir etc/zfsbootmenu
|
||||
vmkdir etc/default
|
||||
|
||||
vcopy 90zfsbootmenu usr/lib/dracut/modules.d
|
||||
vcopy etc/zfsbootmenu etc
|
||||
vcopy etc/default etc
|
||||
|
||||
vlicense LICENSE
|
||||
}
|
||||
Loading…
Reference in New Issue