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| Current File : /var/lib/dpkg/info/linux-image-4.4.0-134-generic.preinst |
#! /usr/bin/perl
# -*- Mode: Cperl -*-
# image.preinst ---
# Author : Manoj Srivastava ( srivasta@tiamat.datasync.com )
# Created On : Sun Jun 14 03:38:02 1998
# Created On Node : tiamat.datasync.com
# Last Modified By : Manoj Srivastava
# Last Modified On : Sun Sep 24 14:04:42 2006
# Last Machine Used: glaurung.internal.golden-gryphon.com
# Update Count : 99
# Status : Unknown, Use with caution!
# HISTORY :
# Description :
#
#
#
#use strict; #for debugging
use Debconf::Client::ConfModule qw(:all);
version('2.0');
my $capb=capb("backup");
$|=1;
# Predefined values:
my $version = "4.4.0-134-generic";
my $link_in_boot = ""; # Should be empty, mostly
my $no_symlink = ""; # Should be empty, mostly
my $reverse_symlink = ""; # Should be empty, mostly
my $do_symlink = "Yes"; # target machine defined
my $do_boot_enable = "Yes"; # target machine defined
my $do_bootfloppy = "Yes"; # target machine defined
my $do_bootloader = "Yes"; # target machine defined
my $move_image = ''; # target machine defined
my $kimage = "vmlinuz"; # Should be empty, mostly
my $loader = "grub"; # lilo, silo, quik, palo, vmelilo, nettrom
# or elilo
my $image_dir = "/boot"; # where the image is located
my $initrd = "YES"; # initrd kernel
my $use_hard_links = ''; # hardlinks do not wirk across fs boundaries
my $postinst_hook = ''; #Normally we do not
my $postrm_hook = ''; #Normally we do not
my $preinst_hook = ''; #Normally we do not
my $prerm_hook = ''; #Normally we do not
my $minimal_swap = ''; # Do not swap symlinks
my $ignore_depmod_err = ''; # normally we do not
my $relink_src_link = 'YES'; # There is no harm in checking the link
my $relink_build_link = 'YES'; # There is no harm in checking the link
my $force_build_link = ''; # There is no harm in checking the link
my $kernel_arch = "x86_64";
my $ramdisk = "/usr/sbin/update-initramfs"; # List of tools to create initial ram fs.
my $package_name = "linux-image-$version";
my $Loader = "NoLOADER"; #
$Loader = "LILO" if $loader =~ /^lilo/io;
$Loader = "SILO" if $loader =~ /^silo/io;
$Loader = "QUIK" if $loader =~ /^quik/io;
$Loader = "yaboot" if $loader =~ /^yaboot/io;
$Loader = "PALO" if $loader =~ /^palo/io;
$Loader = "NETTROM" if $loader =~ /^nettrom/io;
$Loader = "VMELILO" if $loader =~ /^vmelilo/io;
$Loader = "ZIPL" if $loader =~ /^zipl/io;
$Loader = "ELILO" if $loader =~ /^elilo/io;
#known variables
my @boilerplate = ();
my @silotemplate = ();
my @quiktemplate = ();
my @palotemplate = ();
my @vmelilotemplate = ();
my $bootdevice = '';
my $rootdevice = '';
my $rootdisk = '';
my $rootpartition = '';
my $image_dest = "/";
my $realimageloc = "/$image_dir/";
my $have_conffile = "";
my $CONF_LOC = '/etc/kernel-img.conf';
my $relative_links = '';
my $silent_loader = '';
my $warn_reboot = ''; # Warn that we are installing a version of
# the kernel we are running
my $modules_base = '/lib/modules';
die "Pre inst Internal error. Aborting." unless $version;
exit 0 if $ARGV[0] =~ /abort-upgrade/;
exit 1 unless $ARGV[0] =~ /(install|upgrade)/;
$arch = `uname -i`;
if ($arch =~ m/86/) {
system ("grep -q ' pae ' /proc/cpuinfo");
if ($?) {
print STDERR "This kernel does not support a non-PAE CPU.\n";
exit 1;
}
}
# remove multiple leading slashes; make sure there is at least one.
$realimageloc =~ s|^/*|/|o;
$realimageloc =~ s|/+|/|o;
if (-r "$CONF_LOC" && -f "$CONF_LOC" ) {
if (open(CONF, "$CONF_LOC")) {
while (<CONF>) {
chomp;
s/\#.*$//g;
next if /^\s*$/;
$do_symlink = "" if /^\s*do_symlinks\s*=\s*(no|false|0)\s*$/ig;
$no_symlink = "" if /^\s*no_symlinks\s*=\s*(no|false|0)\s*$/ig;
$reverse_symlink = "" if /^\s*reverse_symlinks\s*=\s*(no|false|0)\s*$/ig;
$link_in_boot = "" if /^\s*image_in_boot\s*=\s*(no|false|0)\s*$/ig;
$link_in_boot = "" if /^\s*link_in_boot\s*=\s*(no|false|0)\s*$/ig;
$move_image = "" if /^\s*move_image\s*=\s*(no|false|0)\s*$/ig;
$do_boot_enable = '' if /^\s*do_boot_enable\s*=\s*(no|false|0)\s*$/ig;
$do_bootfloppy = '' if /^\s*do_bootfloppy\s*=\s*(no|false|0)\s*$/ig;
$do_bootloader = '' if /^\s*do_bootloader\s*=\s*(no|false|0)\s*$/ig;
$relative_links = '' if /^\s*relative_links \s*=\s*(no|false|0)\s*$/ig;
$use_hard_links = '' if /^\s*use_hard_links\s*=\s*(no|false|0)\s*$/ig;
$silent_loader = '' if /^\s*silent_loader\s*=\s*(no|false|0)\s*$/ig;
$warn_reboot = '' if /^\s*warn_reboot\s*=\s*(no|false|0)\s*$/ig;
$minimal_swap = '' if /^\s*minimal_swap\s*=\s*(no|false|0)\s*$/ig;
$ignore_depmod_err = '' if /^\s*ignore_depmod_err\s*=\s*(no|false|0)\s*$/ig;
$relink_src_link = '' if /^\s*relink_src_link\s*=\s*(no|false|0)\s*$/ig;
$relink_build_link = '' if /^\s*relink_build_link\s*=\s*(no|false|0)\s*$/ig;
$force_build_link = '' if /^\s*force_build_link\s*=\s*(no|false|0)\s*$/ig;
$do_symlink = "Yes" if /^\s*do_symlinks\s*=\s*(yes|true|1)\s*$/ig;
$no_symlink = "Yes" if /^\s*no_symlinks\s*=\s*(yes|true|1)\s*$/ig;
$reverse_symlink = "Yes" if /^\s*reverse_symlinks\s*=\s*(yes|true|1)\s*$/ig;
$link_in_boot = "Yes" if /^\s*image_in_boot\s*=\s*(yes|true|1)\s*$/ig;
$link_in_boot = "Yes" if /^\s*link_in_boot\s*=\s*(yes|true|1)\s*$/ig;
$move_image = "Yes" if /^\s*move_image\s*=\s*(yes|true|1)\s*$/ig;
$do_boot_enable = "Yes" if /^\s*do_boot_enable\s*=\s*(yes|true|1)\s*$/ig;
$do_bootfloppy = "Yes" if /^\s*do_bootfloppy\s*=\s*(yes|true|1)\s*$/ig;
$do_bootloader = "Yes" if /^\s*do_bootloader\s*=\s*(yes|true|1)\s*$/ig;
$relative_links = "Yes" if /^\s*relative_links\s*=\s*(yes|true|1)\s*$/ig;
$use_hard_links = "Yes" if /^\s*use_hard_links\s*=\s*(yes|true|1)\s*$/ig;
$silent_loader = 'Yes' if /^\s*silent_loader\s*=\s*(yes|true|1)\s*$/ig;
$warn_reboot = 'Yes' if /^\s*warn_reboot\s*=\s*(yes|true|1)\s*$/ig;
$minimal_swap = 'Yes' if /^\s*minimal_swap\s*=\s*(yes|true|1)\s*$/ig;
$ignore_depmod_err = 'Yes' if /^\s*ignore_depmod_err\s*=\s*(yes|true|1)\s*$/ig;
$relink_src_link = 'Yes' if /^\s*relink_src_link\s*=\s*(yes|true|1)\s*$/ig;
$relink_build_link = 'Yes' if /^\s*relink_build_link\s*=\s*(yes|true|1)\s*$/ig;
$force_build_link = 'Yes' if /^\s*force_build_link\s*=\s*(yes|true|1)\s*$/ig;
$image_dest = "$1" if /^\s*image_dest\s*=\s*(\S+)/ig;
$postinst_hook = "$1" if /^\s*postinst_hook\s*=\s*(\S+)/ig;
$postrm_hook = "$1" if /^\s*postrm_hook\s*=\s*(\S+)/ig;
$preinst_hook = "$1" if /^\s*preinst_hook\s*=\s*(\S+)/ig;
$prerm_hook = "$1" if /^\s*prerm_hook\s*=\s*(\S+)/ig;
$ramdisk = "$1" if /^\s*ramdisk\s*=\s*(.+)$/ig;
}
close CONF;
$have_conffile = "Yes";
$have_conffile = "Yes"; # stop perl complaining
}
}
$initrd = '' if (! -x "$ramdisk");
$ENV{KERNEL_ARCH}=$kernel_arch if $kernel_arch;
# About to upgrade this package from version $2 TO THIS VERSION.
# "prerm upgrade" has already been called for the old version of
# this package.
sub find_initrd_tool {
my $hostversion = shift;
my $version = shift;
my @ramdisks =
grep {
my $args =
"$_ " .
"--supported-host-version=$hostversion " .
"--supported-target-version=$version " .
"1>/dev/null 2>&1"
;
system($args) == 0;
}
split (/[:,\s]+/, $ramdisk);
}
sub check {
my $version = shift;
my $lib_modules="$modules_base/$version";
my $message = '';
if (-d "$lib_modules") {
opendir(DIR, $lib_modules) || die "can’t opendir $lib_modules: $!";
my @children = readdir(DIR);
if ($#children > 1) {
my @dirs = grep { -d "$lib_modules/$_" } @children;
if ($#dirs > 1) { # we have subdirs
my $dir_message='';
for my $dir (@dirs) {
if ($dir =~/kernel$/) {
$dir_message="An older install was detected.\n";
}
else {
$dir_message="Module sub-directories were detected.\n"
unless $dir_message;
}
}
$message += $dir_message if $dir_message;
}
my @links = grep { -l "$lib_modules/$_" } @children;
if ($#links > -1) {
my $links_message = '';
for my $link (@links) {
next if ($link =~ /^build$/);
next if ($link =~ /^source$/);
$links_message = "Symbolic links were detected in $modules_base/$version.\n";
}
$message += $links_message if $links_message;
}
my @files = grep { -f "$lib_modules/$_" } @children;
$message += "Additional files also exist in $modules_base/$version.\n"
if ($#files > -1);
}
}
else { $message .= "$lib_modules does not exist. ";}
return $message;
}
if (-d "$modules_base/$version") {
my $errors=check($version);
warn "Info:\n$errors\n" if $errors;
}
# set the env var stem
$ENV{'STEM'} = "linux";
sub exec_script {
my $type = shift;
my $script = shift;
print STDERR "Running $type hook script $script.\n";
system ("$script $version $realimageloc$kimage-$version") &&
print STDERR "User $type hook script [$script] ";
if ($?) {
if ($? == -1) {
print STDERR "failed to execute: $!\n";
}
elsif ($? & 127) {
printf STDERR "died with signal %d, %s coredump\n",
($? & 127), ($? & 128) ? 'with' : 'without';
}
else {
printf STDERR "exited with value %d\n", $? >> 8;
}
exit $? >> 8;
}
}
sub run_hook {
my $type = shift;
my $script = shift;
if ($script =~ m,^/,) {
# Full path provided for the hook script
if (-x "$script") {
&exec_script($type,$script);
}
else {
die "The provided $type hook script [$script] could not be run.\n";
}
}
else {
# Look for it in a safe path
for my $path ('/bin', '/sbin', '/usr/bin', '/usr/sbin') {
if (-x "$path/$script") {
&exec_script($type, "$path/$script");
return 0;
}
}
# No luck
print STDERR "Could not find $type hook script [$script].\n";
die "Looked in: '/bin', '/sbin', '/usr/bin', '/usr/sbin'\n";
}
}
my $options;
for (@ARGV) {
s,','\\'',g;
$options .= " '$_'";
}
$ENV{'DEB_MAINT_PARAMS'}="$options";
## Run user hook script here, if any
if (-x "$preinst_hook") {
&run_hook("preinst", $preinst_hook);
}
if (-d "/etc/kernel/preinst.d") {
print STDERR "Examining /etc/kernel/preinst.d/\n";
system ("run-parts --verbose --exit-on-error --arg=$version" .
" --arg=$realimageloc$kimage-$version" .
" /etc/kernel/preinst.d") &&
die "Failed to process /etc/kernel/preinst.d";
}
if (-d "/etc/kernel/preinst.d/$version") {
print STDERR "Examining /etc/kernel/preinst.d/$version.\n";
system ("run-parts --verbose --exit-on-error --arg=$version" .
" --arg=$realimageloc$kimage-$version" .
" /etc/kernel/preinst.d/$version") &&
die "Failed to process /etc/kernel/preinst.d/$version";
}
print STDERR "Done.\n";
exit 0;
__END__
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