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- #!/usr/bin/perl
- # -*- Mode: Cperl -*-
- # debian.postinst ---
- # Author : Manoj Srivastava ( srivasta@pilgrim.umass.edu )
- # Created On : Sat Apr 27 05:42:43 1996
- # Created On Node : melkor.pilgrim.umass.edu
- # Last Modified By : Manoj Srivastava
- # Last Modified On : Sat Aug 5 13:20:22 2006
- # Last Machine Used: glaurung.internal.golden-gryphon.com
- # Update Count : 45
- # Status : Unknown, Use with caution!
- # HISTORY :
- # Description :
- #
- #
- #
- # arch-tag: 1c716174-2f0a-476d-a626-a1322e62503a
- #
-
-
- $|=1;
-
- # Predefined values:
- my $version = "2.6.20-15";
- 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 = "bzImage"; # Should be empty, mostly
- my $loader = "lilo"; # lilo, silo, quik, palo, vmelilo, nettrom, arcboot or delo
- my $image_dir = "/boot"; # where the image is located
- my $clobber_modules = ''; # target machine defined
- my $relative_links = ""; # target machine defined
- my $initrd = ""; # initrd kernel
- my $mkimage = ""; # command to generate the initrd image
- my $do_initrd = ''; # Normally we do not
- 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_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 $official_image = "YES"; # only true for official images
- my $arch = "i386"; # should be same as dpkg --print-installation-architecture
- my $kernel_arch = "i386";
- my $ramdisk = ""; # List of tools to create initial ram fs.
- my $initrddep = ""; # List of dependencies for such tools
- my $package_name = "linux-image-$version";
-
-
- # Ignore all invocations uxcept when called on to configure.
- exit 0 unless ($ARGV[0] && $ARGV[0] =~ /configure/);
-
- #known variables
- my $image_dest = "/";
- my $realimageloc = "/$image_dir/";
- my $have_conffile = "";
- my $silent_modules = '';
- my $silent_loader = '';
- my $modules_base = '/lib/modules';
- my $CONF_LOC = '/etc/kernel-img.conf';
- # remove multiple leading slashes; make sure there is at least one.
- $realimageloc =~ s|^/*|/|o;
- $realimageloc =~ s|/+|/|o;
-
- my $architecture;
- chomp($architecture = `dpkg --print-installation-architecture`);
- $architecture = "ppc" if $architecture eq "powerpc";
- $architecture = "parisc" if $architecture eq "hppa";
- $architecture = "mips" if $architecture eq "mipsel";
- $architecture = "x86_64" if $architecture eq "amd64";
-
- my $stop_and_read = 0;
- my $src_postinst_hook = '';
-
- # most of our work is done in /usr/src.
- chdir '/usr/src' or die "Could not chdir to /usr/src:$!";
-
- if (-d "$package_name") {
-
-
- # See if we have a kernel image of the same version already installed.
- if ( -d "$modules_base/$version" && -d "/usr/src/$package_name" ) {
- if (! -e "$modules_base/$version/build" ) {
- my $result = symlink ("/usr/src/linux-headers-$version",
- "$modules_base/$version/build");
- if (! $result) {
- warn "Could not link /usr/src/linux-headers-$version to $modules_base/$version/build:$!"
- }
- }
- }
-
- chdir "/usr/src/$package_name/include" ||
- die "Could not chdir to /usr/src/$package_name/include:$!";
-
- if (! -d "asm-$architecture") {
- warn "/usr/src/$package_name/include/asm-$architecture does not exist.\n";
- }
- elsif (-e 'asm') {
- if (! -l 'asm') {
- warn "/usr/src/$package_name/include/asm is not a symlink.\n";
- $stop_and_read++;
- }
- else {
- my $target=readlink 'asm';
- if ("$target" ne "asm-$architecture") {
- if (! unlink 'asm') {
- warn "could not unlink /usr/src/$package_name/include/asm: $!\n";
- warn "It points to /usr/src/$package_name/include/$target\n";
- warn "rather than at /usr/src/$package_name/include/asm-$architecture\n";
- $stop_and_read++;
- }
- else {
- if (! symlink "asm-$architecture", 'asm') {
- warn "Could not link /usr/src/$package_name/include/asm:$!\n";
- warn "to /usr/src/$package_name/include/asm-$architecture\n";
- $stop_and_read++;
- }
- }
- }
- }
- }
- }
-
- chdir '/usr/src' or die "Could not chdir to /usr/src:$!";
-
- # if ($stop_and_read) {
- # my $answer;
- # print STDERR " Please Hit return to continue.";
- # $answer = <STDIN>;
- # }
-
- if (-r "$CONF_LOC" && -f "$CONF_LOC" ) {
- if (open(CONF, "$CONF_LOC")) {
- while (<CONF>) {
- chomp;
- s/\#.*$//g;
- next if /^\s*$/;
-
- $src_postinst_hook = "$1" if /src_postinst_hook\s*=\s*(\S+)/ig;
- $header_postinst_hook = "$1" if /header_postinst_hook\s*=\s*(\S+)/ig;
- }
- close CONF;
- $have_conffile = "Yes";
- }
- }
-
- 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";
- }
- }
-
- ## Run user hook script here, if any
- if (-x "$src_postinst_hook") {
- &run_hook("postinst", $src_postinst_hook);
- }
- if (-x "$header_postinst_hook") {
- &run_hook("postinst", $header_postinst_hook);
- }
-
-
-
- exit 0;
-
- __END__
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