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-rw-r--r--debian/control-scripts/prerm307
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diff --git a/debian/control-scripts/prerm b/debian/control-scripts/prerm
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+#! /usr/bin/perl
+# -*- Mode: Perl -*-
+# image.prerm ---
+# Author : root ( root@melkor.pilgrim.umass.edu )
+# Created On : Fri May 17 03:28:59 1996
+# Created On Node : melkor.pilgrim.umass.edu
+# Last Modified By : Manoj Srivastava
+# Last Modified On : Sat Aug 5 13:14:17 2006
+# Last Machine Used: glaurung.internal.golden-gryphon.com
+# Update Count : 85
+# Status : Unknown, Use with caution!
+# HISTORY :
+# Description :
+#
+#
+# $Id: image.prerm,v 1.22 2003/10/07 16:24:20 srivasta Exp $
+#
+#
+#use strict;
+
+$|=1;
+# Predefined values:
+my $version = "=V";
+my $link_in_boot = ""; # Should be empty, mostly
+my $no_symlink = ""; # Should be empty, mostly
+my $reverse_symlink = ""; # Should be empty, mostly
+my $do_symlinks = "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 = "=K"; # Should be empty, mostly
+my $loader = "=L"; # lilo, silo, quik, palo, vmelilo, or nettrom
+my $image_dir = "/boot"; # where the image is located
+my $clobber_modules = ''; # target machine defined
+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_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 = "=B";
+my $ramdisk = "/usr/sbin/update-initramfs";
+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;
+
+
+# This should not point to /tmp, because of security risks.
+my $temp_file_name = "/var/log/$loader" . "_log.$$";
+
+#known variables
+my $image_dest = "/";
+my $realimageloc = "/$image_dir/";
+my $have_conffile = "";
+my $CONF_LOC = '/etc/kernel-img.conf';
+my $relative_links = '';
+my $silent_loader = '';
+my $warn_reboot = 'Yes'; # Warn that we are installing a version of
+ # the kernel we are running
+
+# remove multiple leading slashes; make sure there is at least one.
+$realimageloc =~ s|^/*|/|o;
+$realimageloc =~ s|/+|/|o;
+
+my $DEBUG = 0;
+
+# Variables used
+my $image='';
+my $ret=0;
+my $seen='';
+my $answer='';
+my $running = '';
+my $WouldInvalidate = 0;
+
+if ($ARGV[0] && ($ARGV[0] =~ /remove/ || $ARGV[0] =~ /upgrade/)) {
+ if (-l "/usr/doc/linux-image-$version") {
+ unlink "/usr/doc/linux-image-$version";
+ }
+}
+
+# Ignore all invocations uxcept when called on to remove
+exit 0 unless ($ARGV[0] && $ARGV[0] =~ /remove/) ;
+
+# Paranoid check to make sure that the correct value is put in there
+if (! $kimage) { $kimage = "vmlinuz";} # Hmm. empty
+elsif ($kimage =~ m/^b?uImage$/o) { $kimage = "vmlinuz";} # these produce vmlinuz
+elsif ($kimage =~ m/^b?zImage$/o) { $kimage = "vmlinuz";} # these produce vmlinuz
+elsif ($kimage =~ m/^[iI]mage$/o) { my $nop = $kimage; }
+elsif ($kimage =~ m/^vmlinux$/o) { my $nop = $kimage; }
+else { $kimage = "vmlinuz";} # Default
+
+if (-r "$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;
+ $clobber_modules = '' if /^\s*clobber_modules\s*=\s*(no|false|0)\s*$/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;
+ $relative_links = '' if /^\s*relative_links \s*=\s*(no|false|0)\s*$/ig;
+ $do_bootloader = '' if /^\s*do_bootloader\s*=\s*(no|false|0)\s*$/ig;
+ $do_initrd = '' if /^\s*do_initrd\s*=\s*(no|false|0)\s*$/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;
+ $relink_build_link = '' if /^\s*relink_build_link\s*=\s*(no|false|0)\s*$/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;
+ $clobber_modules = "Yes" if /^\s*clobber_modules\s*=\s*(yes|true|1)\s*$/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;
+ $do_initrd = "Yes" if /^\s*do_initrd\s*=\s*(yes|true|1)\s*$/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;
+ $relink_build_link = 'Yes' if /^\s*relink_build_link\s*=\s*(yes|true|1)\s*$/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;
+ $have_conffile = "Yes";
+ }
+}
+
+
+$ENV{KERNEL_ARCH}=$kernel_arch if $kernel_arch;
+
+#check to see if we are trying to remove a running kernel
+# if so we abort right now.
+chop($running=`uname -r`);
+if ($running eq $version) {
+ print STDERR "WARN: Proceeding with removing running kernel image.\n";
+}
+
+#Now, they have an alternate kernel which they are currently running
+
+# This is just us being nice to lilo users.
+
+chdir("/") or die "could not chdir to /:$!\n";
+
+if (-f "/etc/$loader.conf") { #I know, could be a link, but ..
+ open (LILO, "/etc/$loader.conf") || &success(); # this is not critical
+ while (<LILO>) {
+ chop;
+ s/\#.*//; # nix the comments
+ next unless /^\s*image\s*=\s(\S+)/o;
+ $image = $1;
+ if ($image && -e $image) {
+ while (defined($image) && -l $image) {
+ $image = readlink ($image);
+ }
+ if (defined($image) && -e $image) {
+ $WouldInvalidate |= $image =~ /$kimage-$version/;
+ }
+ else {
+ &success(); # invalid $loader.conf file
+ }
+ }
+ else {
+ &success(); # invalid $loader.conf file
+ }
+ }
+ close (LILO);
+ if ($WouldInvalidate) {
+ print STFERR "WARN: Proceeding with removing running kernel image.\n";
+ &success();
+ }
+}
+
+
+# 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 "$prerm_hook") {
+ &run_hook("prerm", $prerm_hook);
+}
+if (-d "/etc/kernel/prerm.d") {
+ print STDERR "Examining /etc/kernel/prerm.d.\n";
+ system ("run-parts --verbose --exit-on-error --arg=$version " .
+ "--arg=$realimageloc$kimage-$version /etc/kernel/prerm.d") &&
+ die "Failed to process /etc/kernel/prerm.d";
+}
+if (-d "/etc/kernel/prerm.d/$version") {
+ print STDERR "Examining /etc/kernel/prerm.d/$version.\n";
+ system ("run-parts --verbose --exit-on-error --arg=$version" .
+ " --arg=$realimageloc$kimage-$version " .
+ "/etc/kernel/prerm.d/$version") &&
+ die "Failed to process /etc/kernel/prerm.d/$version";
+}
+
+sub success () {
+ # NOTE: need to keep this list in sync with rules.d/2-binary-arch.mk
+ my %files_to_keep = (
+ 'modules.builtin' => 1,
+ 'modules.order' => 1,
+ );
+ my $short;
+ for my $file (</lib/modules/$version/modules.*>) {
+ $short = $file; $short =~ s,.*/,,;
+ if (!defined $files_to_keep{$short}) {
+ unlink "$file";
+ }
+ }
+ exit 0;
+}
+
+
+
+&success();
+exit 0;
+__END__
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