Index: debian.chrome/control-scripts/postrm |
diff --git a/debian.chrome/control-scripts/postrm b/debian.chrome/control-scripts/postrm |
new file mode 100644 |
index 0000000000000000000000000000000000000000..3326a155f89129f61bcf43090733291f688df052 |
--- /dev/null |
+++ b/debian.chrome/control-scripts/postrm |
@@ -0,0 +1,353 @@ |
+#! /usr/bin/perl |
+# -*- Mode: Cperl -*- |
+# image.postrm --- |
+# Author : Manoj Srivastava ( srivasta@glaurung.green-gryphon.com ) |
+# Created On : Sat May 15 11:05:13 1999 |
+# Created On Node : glaurung.green-gryphon.com |
+# Last Modified By : Manoj Srivastava |
+# Last Modified On : Wed Sep 13 11:26:19 2006 |
+# Last Machine Used: glaurung.internal.golden-gryphon.com |
+# Update Count : 57 |
+# Status : Unknown, Use with caution! |
+# HISTORY : |
+# Description : |
+# |
+# $Id: image.postrm,v 1.31 2003/10/07 16:24:20 srivasta Exp $ |
+# |
+ |
+ |
+# |
+#use strict; #for debugging |
+use Cwd 'abs_path'; |
+ |
+$|=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_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 = "=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 $do_initrd = ''; # Normally, we don't |
+my $warn_initrd = 'YES'; # Normally we do |
+my $use_hard_links = ''; # hardlinks do not work 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 = ''; # we shall not create a dangling 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 @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_modules = ''; |
+my $silent_loader = ''; |
+my $warn_reboot = 'Yes'; # Warn that we are installing a version of |
+ # the kernel we are running |
+ |
+chdir('/') or die "could not chdir to /:$!\n"; |
+# 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; |
+ $clobber_modules = '' if /^\s*clobber_modules\s*=\s*(no|false|0)\s*$/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; |
+ $warn_initrd = '' if /^\s*warn_initrd\s*=\s*(no|false|0)\s*$/ig; |
+ $use_hard_links = '' if /^\s*use_hard_links\s*=\s*(no|false|0)\s*$/ig; |
+ $silent_modules = '' if /^\s*silent_modules\s*=\s*(no|false|0)\s*$/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; |
+ $warn_initrd = "Yes" if /^\s*warn_initrd\s*=\s*(yes|true|1)\s*$/ig; |
+ $use_hard_links = "Yes" if /^\s*use_hard_links\s*=\s*(yes|true|1)\s*$/ig; |
+ $silent_modules = 'Yes' if /^\s*silent_modules\s*=\s*(yes|true|1)\s*$/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; |
+ $have_conffile = "Yes"; |
+ } |
+} |
+ |
+if ($link_in_boot) { |
+ $image_dest = "/$image_dir/"; |
+ $image_dest =~ s|^/*|/|o; |
+} |
+ |
+$image_dest = "$image_dest/"; |
+$image_dest =~ s|/+$|/|o; |
+ |
+# The destdir may be gone by now. |
+if (-d "$image_dest") { |
+ chdir("$image_dest") or die "could not chdir to $image_dest:$!\n"; |
+} |
+ |
+# Paranoid check to make sure that the correct value is put in there |
+if (! $kimage) {$kimage = "vmlinuz"} # Hmm. empty |
+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 |
+ |
+$ENV{KERNEL_ARCH}=$kernel_arch if $kernel_arch; |
+ |
+ |
+###################################################################### |
+###################################################################### |
+############ |
+###################################################################### |
+###################################################################### |
+sub remove_sym_link { |
+ my $bad_image = $_[0]; |
+ |
+ warn "Removing symbolic link $bad_image \n"; |
+ if ($loader =~ /lilo/i) |
+ { |
+ warn "Unless you used the optional flag in lilo, \n"; |
+ } |
+ warn " you may need to re-run your boot loader" . ($loader ? "[$loader]":"") |
+ . "\n"; |
+ # Remove the dangling link |
+ unlink "$bad_image"; |
+} |
+ |
+###################################################################### |
+###################################################################### |
+############ |
+###################################################################### |
+###################################################################### |
+sub CanonicalizePath { |
+ my $path = join '/', @_; |
+ my @work = split '/', $path; |
+ my @out; |
+ my $is_absolute; |
+ |
+ if (@work && $work[0] eq "") { $is_absolute = 1; shift @work; } |
+ |
+ while (@work) { |
+ my $seg = shift @work; |
+ if ($seg eq "." || $seg eq "") { |
+ } elsif ($seg eq "..") { |
+ if (@out && $out[-1] ne "..") { |
+ pop @out; |
+ } else { |
+ # Leading "..", or "../..", etc. |
+ push @out, $seg; |
+ } |
+ } else { |
+ push @out, $seg; |
+ } |
+ } |
+ |
+ unshift @out, "" if $is_absolute; |
+ return join('/', @out); |
+} |
+ |
+###################################################################### |
+###################################################################### |
+############ |
+###################################################################### |
+###################################################################### |
+# This removes dangling symlinks. What do we do about hard links? Surely a |
+# something with the nane $image_dest . "$kimage" ought not to be left behind? |
+sub image_magic { |
+ my $kimage = $_[0]; |
+ my $image_dest = $_[1]; |
+ |
+ if (-l "$kimage") { |
+ # There is a symbolic link |
+ my $force_move = 0; |
+ my $vmlinuz_target = readlink "$kimage"; |
+ my $real_target = ''; |
+ $real_target = abs_path($vmlinuz_target) if defined ($vmlinuz_target); |
+ if (!defined($vmlinuz_target) || ! -f "$real_target") { |
+ # what, a dangling symlink? |
+ warn "The link " . $image_dest . "$kimage is a damaged link\n"; |
+ # Remove the dangling link |
+ &remove_sym_link("$kimage"); |
+ } |
+ else { |
+ my $canonical_target = CanonicalizePath("$vmlinuz_target"); |
+ if (! -e $canonical_target) { |
+ warn "The link " . $image_dest . "$kimage is a dangling link\n"; |
+ &remove_sym_link("$kimage"); |
+ } |
+ } |
+ } |
+} |
+ |
+# set the env var stem |
+$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; |
+ } |
+ } |
+} |
+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 { |
+ warn "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"; |
+ warn "Looked in: '/bin', '/sbin', '/usr/bin', '/usr/sbin'\n"; |
+ } |
+} |
+ |
+## Run user hook script here, if any |
+if ($postrm_hook) { |
+ &run_hook("postrm", $postrm_hook); |
+} |
+if (-d "/etc/kernel/postrm.d") { |
+ warn "Examining /etc/kernel/postrm.d .\n"; |
+ system ("run-parts --verbose --exit-on-error --arg=$version " . |
+ "--arg=$realimageloc$kimage-$version " . |
+ "/etc/kernel/postrm.d") && |
+ die "Failed to process /etc/kernel/postrm.d"; |
+} |
+if (-d "/etc/kernel/postrm.d/$version") { |
+ warn "Examining /etc/kernel/postrm.d/$version .\n"; |
+ system ("run-parts --verbose --exit-on-error --arg=$version " . |
+ "--arg=$realimageloc$kimage-$version " . |
+ "/etc/kernel/postrm.d/$version") && |
+ die "Failed to process /etc/kernel/postrm.d/$version"; |
+} |
+ |
+# check and remove damaged and dangling symlinks |
+if ($ARGV[0] !~ /upgrade/) { |
+ system("$ramdisk -d -k " . $version . " > /dev/null 2>&1"); |
+ if (-f $realimageloc . "initrd.img-$version.bak") { |
+ unlink $realimageloc . "initrd.img-$version.bak"; |
+ } |
+ image_magic($kimage, $image_dest); |
+ image_magic($kimage . ".old", $image_dest); |
+ image_magic("initrd.img", $image_dest) if $initrd; |
+ image_magic("initrd.img.old", $image_dest) if $initrd; |
+} |
+ |
+exit 0; |
+ |
+__END__ |
+ |
+ |
+ |
+ |
+ |
+ |