--- /dev/null
+#! /usr/bin/perl
+# OriginalAuthor : Manoj Srivastava ( srivasta@pilgrim.umass.edu )
+#
+# Customized for Ubuntu by: Ben Collins <bcollins@ubuntu.com>
+
+#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, 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 = "YES"; # initrd kernel
+my $do_initrd = ''; # Normally we do not
+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 $kernel_arch = "=B";
+my $ramdisk = "/usr/sbin/update-initramfs"; # List of tools to create initial ram fs.
+my $notifier = "/usr/share/update-notifier/notify-reboot-required";
+my $package_name = "linux-image-$version";
+my $explicit_do_loader = 'Yes';
+
+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 $loader =~ /^elilo/io;
+$Loader = "ARCBOOT" if $loader =~ /^arcboot/io;
+$Loader = "DELO" if $loader =~ /^delo/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 $silent_modules = '';
+my $silent_loader = '';
+my $warn_reboot = 'Yes'; # Warn that we are installing a version of
+ # the kernel we are running
+
+my $modules_base = '/lib/modules';
+my $CONF_LOC = '/etc/kernel-img.conf';
+
+# Ignore all invocations except when called on to configure.
+exit 0 unless $ARGV[0] =~ /configure/;
+
+my $DEBUG = 0;
+
+# Do some preliminary sanity checks here to ensure we actually have an
+# valid image dir
+chdir('/') or die "could not chdir to /:$!\n";
+die "Internal Error: ($image_dir) is not a directory!\n"
+ unless -d $image_dir;
+
+# remove multiple leading slashes; make sure there is at least one.
+$realimageloc =~ s|^/*|/|o;
+$realimageloc =~ s|/+|/|o;
+die "Internal Error: ($realimageloc) is not a directory!\n"
+ unless -d $realimageloc;
+
+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_symlink\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;
+ $explicit_do_loader = '' 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_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;
+
+ $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;
+ $explicit_do_loader = "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_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;
+
+ $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";
+ }
+}
+
+
+
+# For some versions of kernel-package, we had this warning in the
+# postinst, but the rules did not really interpolate the value in.
+# Here is a sanity check.
+my $pattern = "=" . "I";
+$initrd=~ s/^$pattern$//;
+
+if ($link_in_boot) {
+ $image_dest = "/$image_dir/"; # same as realimageloc
+}
+
+# Tack on at least one trainling /
+$image_dest = "$image_dest/";
+$image_dest =~ s|^/*|/|o;
+$image_dest =~ s|/+$|/|o;
+
+if (! -d "$image_dest") {
+ die "Expected Image Destination dir ($image_dest) to be a valid directory!\n";
+}
+
+# sanity
+if (!($do_bootfloppy || $do_bootloader)) {
+ $do_boot_enable = '';
+}
+if ($do_symlink && $no_symlink) {
+ warn "Both do_symlinks and no_symlinks options enabled; disabling no_symlinks\n";
+ $no_symlink = 0;
+}
+
+# most of our work is done in $image_dest (nominally /)
+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?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
+
+$ENV{KERNEL_ARCH}=$kernel_arch if $kernel_arch;
+
+
+die "Internal Error: Could not find image (" . $realimageloc
+ . "$kimage-$version)\n" unless -e $realimageloc
+ . "$kimage-$version";
+
+# search for the boot loader in the path
+my $loader_exec;
+($loader_exec = $loader) =~ s|.*/||;
+my ($loaderloc) = grep -x, map "$_/$loader_exec",
+ map { length($_) ? $_ : "." } split /:/, $ENV{PATH};
+
+
+######################################################################
+######################################################################
+########### Test whether a relative symlinkwould be OK #######
+######################################################################
+######################################################################
+sub test_relative {
+ my %params = @_;
+ my $cwd;
+
+ die "Internal Error: Missing Required paramater 'Old Dir' "
+ unless $params{'Old Dir'};
+ die "Internal Error: Missing Required paramater New Dir' "
+ unless $params{'New Dir'};
+
+
+ die "Internal Error: No such dir $params{'Old Dir'} "
+ unless -d $params{'Old Dir'};
+ die "Internal Error: No such dir $params{'New Dir'} "
+ unless -d $params{'New Dir'};
+
+ # If the caller specified a test file, and it does not exist try and find
+ # another file to use in its stead. As we are installing kernels we can
+ # use any versioned file from this kernel which should be in the same place.
+ if (defined $params{'Test File'} and
+ ! -f $params{'Old Dir'} . '/' . $params{'Test File'}) {
+
+ my @possible = glob($params{'Old Dir'} . "/*$version*");
+ if ($#possible >= 0) {
+ $params{'Test File'} = `basename "$possible[0]"`;
+ chomp($params{'Test File'});
+ warn "Test relative: selected $params{'Test File'}"
+ if $DEBUG;
+ }
+ }
+
+ warn "Test relative: testing $params{'Old Dir'} -> $params{'New Dir'}"
+ if $DEBUG;
+ chomp($cwd = `pwd`);
+ chdir ($params{'New Dir'}) or die "Could not chdir to $params{'New Dir'}:$!";
+ my $ok = 0;
+ $params{'Old Dir'} =~ s|^/*||o;
+ if (-d $params{'Old Dir'} ) {
+ if (defined $params{'Test File'}) {
+ if (-e $params{'Old Dir'} . $params{'Test File'}) {
+ $ok = 1;
+ }
+ } else {
+ $ok = 1; # well, backward compatibility
+ }
+ }
+ chdir ($cwd) or die "Could not chdir to $params{'New Dir'}:$!";
+ return $ok;
+}
+
+######################################################################
+######################################################################
+############
+######################################################################
+######################################################################
+# 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);
+# }
+######################################################################
+######################################################################
+############
+######################################################################
+######################################################################
+
+sub spath {
+ my %params = @_;
+
+ die "Missing Required paramater 'Old'" unless $params{'Old'};
+ die "Missing Required paramater 'New'" unless $params{'New'};
+
+ my @olddir = split '/', `readlink -q -m $params{'Old'}`;
+ my @newdir = split '/', `readlink -q -m $params{'New'}`;
+ my @outdir = @olddir;
+
+ my $out = '';
+ my $i;
+ for ($i = 0; $i <= $#olddir && $i <= $#newdir; $i++) {
+ $out++ if ($olddir[$i] ne $newdir[$i]);
+ shift @outdir unless $out;
+ unshift @outdir, ".." if $out;
+ }
+ if ($#newdir > $#olddir) {
+ for ($i=0; $i < $#newdir; $i++) {
+ unshift @outdir, "..";
+ }
+ }
+ return join ('/', @outdir);
+}
+######################################################################
+######################################################################
+############
+######################################################################
+######################################################################
+
+
+# This routine actually moves the kernel image
+# From: $realimageloc/$kimage-$version (/boot/vmlinuz-2.6.12)
+# To: $image_dest/$kimage-$version (/vmlinuz-2.6.12)
+# Note that the image is moved to a versioned destination, but ordinary
+# symlinks we create otherwise are not normally versioned
+sub really_move_image {
+ my $src_dir = $_[0];
+ my $target = $_[1];
+ my $dest_dir = $_[2];
+
+ warn "Really move image: src_dir=$src_dir, target=$target,\n destdir=$dest_dir"
+ if $DEBUG;
+ if (-e "$target") {
+ # we should be in dir $dest_dir == $image_dest /, normally
+ rename("$target", "$target.$$") ||
+ die "failed to move " . $dest_dir . "$target:$!";
+ warn "mv $target $target.$$" if $DEBUG;
+ }
+ warn "mv -f $src_dir$target $target" if $DEBUG;
+ my $ret = system("mv -f " . $src_dir . "$target " .
+ " $target");
+ if ($ret) {
+ die("Failed to move " . $src_dir . "$target to "
+ . $dest_dir . "$target");
+ }
+ # Ok, now we may clobber the previous .old files
+ if (-e "$target.$$") {
+ rename("$target.$$", "$target.old") ||
+ die "failed to move " . $dest_dir . "$target:$!";
+ warn "mv $target.$$ $target " if $DEBUG;
+ }
+}
+
+# Normally called after really_move_image; and only called if we asked for
+# reversed link this routine reverses the symbolic link that is notmally
+# created. Since the real kernel image has been moved over to
+# $image_dest/$kimage-$version. So, this routine links
+# From: $image_dest/$kimage-$version (/vmlinuz-2.6.12)
+# To: $realimageloc/$kimage-$version (/boot/vmlinuz-2.6.12)
+sub really_reverse_link {
+ my $src_dir = $_[0];
+ my $link_name = $_[1];
+ my $dest_dir = $_[2];
+ warn "Really reverse link: src_dir=$src_dir, link name=$link_name\n" .
+ "\tdestdir=$dest_dir" if $DEBUG;
+
+ my $Old = $dest_dir;
+ if (test_relative ('Old Dir' => $Old, 'New Dir' => $src_dir,
+ 'Test File' => "$link_name")) {
+ $Old =~ s|^/*||o;
+ }
+ # Special case is they are in the same dir
+ my $rel_path = spath('Old' => "$Old", 'New' => "$src_dir" );
+ $Old ="" if $rel_path =~ m/^\s*$/o;
+
+ if ($use_hard_links =~ m/YES/i) {
+ link($Old . "$link_name", $src_dir . "$link_name") ||
+ die("Failed to link " . $dest_dir . "$link_name to " . $src_dir .
+ "$link_name:$!");
+ warn "ln " . $Old . "$link_name " . $src_dir . "$link_name" if $DEBUG;
+ }
+ else {
+ symlink($Old . "$link_name", $src_dir . "$link_name") ||
+ die("Failed to symbolic-link " . $dest_dir . "$link_name to " . $src_dir
+ . "$link_name:$!");
+ warn "ln -s " . $Old . "$link_name " . $src_dir . "$link_name" if $DEBUG;
+ }
+}
+
+# This routine is invoked if there is a symbolic link in place
+# in $image_dest/$kimage -- so a symlink exists in the destination.
+# What we are trying to determine is if we need to move the symbolic link over
+# to the the .old location
+sub move_p {
+ my $kimage = $_[0]; # Name of the symbolic link
+ my $image_dest = $_[1]; # The directory the links goes into
+ my $image_name = $_[2];
+ my $src_dir = $_[3];
+ my $force_move = 0;
+ warn "Move?: kimage=$kimage, image_dest=$image_dest, \n" .
+ "\timage_name=$image_name, src_dir=$src_dir" if $DEBUG;
+
+ if ($no_symlink || $reverse_symlink) {
+ # we do not want links, yet we have a symbolic link here!
+ warn "found a symbolic link in " . $image_dest . "$kimage \n" .
+ "even though no_symlink is defined\n" if $no_symlink;
+ warn "found a symbolic link in " . $image_dest . "$kimage \n" .
+ "even though reverse_symlink is defined\n" if $reverse_symlink;
+ # make sure we change this state of affairs
+ $force_move = 1;
+ return $force_move;
+ }
+
+ warn "DEBUG: OK. We found symlink, and we should have a symlink here.\n"
+ if $DEBUG;
+ my $vmlinuz_target = readlink "$kimage";
+ my $real_target = '';
+ my $target = `readlink -q -m "${realimageloc}${kimage}-${version}"`;
+ $real_target = abs_path($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 dangling link" .
+ "to $real_target\n";
+ $force_move = 1;
+ return $force_move;
+ }
+
+
+ warn "DEBUG: The link $kimage points to ($vmlinuz_target)\n" if $DEBUG;
+ warn "DEBUG: ($vmlinuz_target) is really ($real_target)\n" if $DEBUG;
+ my $cwd;
+ chomp ($cwd=`pwd`);
+ if ($vmlinuz_target !~ m|^/|o) {
+ $vmlinuz_target = $cwd . "/" . $vmlinuz_target;
+ $vmlinuz_target =~ s|/+|/|o;
+ }
+ $vmlinuz_target = `readlink -q -m $vmlinuz_target`;
+
+ if ("$vmlinuz_target" ne "$target") {
+ warn "DEBUG: We need to handle this.\n" if $DEBUG;
+ if ($minimal_swap) {
+ warn "DEBUG: Minimal swap.\n" if $DEBUG;
+ if (-l "$kimage.old") {
+ warn "DEBUG: There is an old link at $kimage.old\n" if $DEBUG;
+ my $old_target = readlink "$kimage.old";
+ my $real_old_target = '';
+ $real_old_target=abs_path($old_target) if defined ($old_target);
+
+ if ($real_old_target && -f "$real_old_target") {
+ if ($old_target !~ m|^/|o) {
+ $old_target = $cwd . "/" . $old_target;
+ $old_target =~ s|/+|/|o;
+ }
+ $old_target = `readlink -q -m $old_target`;
+ if ("$old_target" ne "$target") {
+ $force_move = 1;
+ warn "DEBUG: Old link ($old_target) does not point to us ($target)\n"
+ if $DEBUG;
+ }
+ else { # The .old points to the current
+ warn "$kimage.old --> $target -- doing nothing";
+ $force_move = 0;
+ }
+ }
+ else {
+ warn "DEBUG: Well, the old link does not exist -- so we move\n"
+ if $DEBUG;
+ $force_move = 1;
+ }
+ }
+ else {
+ warn "DEBUG: No .old link -- OK to move\n"
+ if $DEBUG;
+ $force_move = 1;
+ }
+ }
+ else {
+ warn "DEBUG: ok, minimal swap is no-- so we move.\n"
+ if $DEBUG;
+ $force_move = 1;
+ }
+ }
+ else { # already have proper link
+ warn "$kimage($vmlinuz_target) points to $target ($real_target) -- doing nothing";
+ $force_move = 0;
+ }
+ return $force_move;
+}
+
+
+# This routine moves the symbolic link around (/vmlinuz -> /vmlinuz.old)
+# It pays attention to whether we should the fact whether we should be using
+# hard links or not.
+sub really_move_link {
+ my $kimage = $_[0]; # Name of the symbolic link
+ my $image_dest = $_[1]; # The directory the links goes into
+ my $image_name = $_[2];
+ my $src_dir = $_[3];
+ warn "really_move_link: kimage=$kimage, image_dest=$image_dest\n" .
+ "\t image_name=$image_name, src_dir=$src_dir" if $DEBUG;
+
+ # don't clobber $kimage.old quite yet
+ rename("$kimage", "$kimage.$$") ||
+ die "failed to move " . $image_dest . "$kimage:$!";
+ warn "mv $kimage $kimage.$$" if $DEBUG;
+ my $Old = $src_dir;
+ my $cwd;
+
+ chomp($cwd=`pwd`);
+ if (test_relative ('Old Dir' => $Old, 'New Dir' => $cwd,
+ 'Test File' => "$image_name")) {
+ $Old =~ s|^/*||o;
+ }
+ # Special case is they are in the same dir
+ my $rel_path = spath('Old' => "$Old", 'New' => "$cwd" );
+ $Old ="" if $rel_path =~ m/^\s*$/o;
+
+ if ($use_hard_links =~ m/YES/i) {
+ warn "ln ${Old}${image_name} $kimage" if $DEBUG;
+ if (! link("${Old}${image_name}", "$kimage")) {
+ rename("$kimage.$$", "$kimage");
+ die("Failed to link ${Old}${image_name} to " .
+ "${image_dest}${kimage}:$!");
+ }
+ }
+ else {
+ warn "ln -s ${Old}${image_name} $kimage" if $DEBUG;
+ if (! symlink("${Old}${image_name}", "$kimage")) {
+ rename("$kimage.$$", "$kimage");
+ die("Failed to symbolic-link ${Old}${image_name} to " .
+ "${image_dest}${kimage}:$!");
+ }
+ }
+
+ # Ok, now we may clobber the previous .old file
+ if (-l "$kimage.old" || ! -e "$kimage.old" ) {
+ rename("$kimage.$$", "$kimage.old");
+ warn "mv $kimage.$$ $kimage.old" if $DEBUG;
+ }
+ else {
+ warn "$kimage.old is not a symlink, not clobbering\n";
+ warn "rm $kimage.$$";
+ unlink "$kimage.$$" if $DEBUG;
+ }
+}
+
+# This routine handles a request to do symlinks, but there is no
+# symlink file already there. Either we are supposed to use copy, or we are
+# installing on a pristine system, or the user does not want symbolic links at
+# all. We use a configuration file to tell the last two cases apart, creating
+# a config file if needed.
+sub handle_missing_link {
+ my $kimage = $_[0]; # Name of the symbolic link
+ my $image_dest = $_[1]; # The directory the links goes into
+ my $image_name = $_[2];
+ my $src_dir = $_[3];
+ warn "handle_missing_link: kimage=$kimage, image_dest=$image_dest\n" .
+ "\t image_name=$image_name, src_dir=$src_dir" if $DEBUG;
+
+ if ($no_symlink) {
+ warn "cp -a --backup=t $realimageloc$image_name $kimage" if $DEBUG;
+ my $ret = system("cp -a --backup=t " . $realimageloc .
+ "$image_name " . " $kimage");
+ if ($ret) {
+ die("Failed to copy " . $realimageloc . "$image_name to "
+ . $image_dest . "$kimage");
+ }
+ }
+ elsif ($reverse_symlink) {
+ warn "mv -f $realimageloc$image_name $kimage" if $DEBUG;
+ my $ret = system("mv -f " . $realimageloc . "$image_name "
+ . "$kimage");
+ if ($ret) {
+ die("Failed to move " . $realimageloc . "$image_name to "
+ . $image_dest . "$kimage");
+ }
+ }
+ else {
+ if (! $have_conffile) {
+ my $ret;
+ my $answer='';
+ $do_symlink = "Yes";
+
+ if (open(CONF, ">$CONF_LOC")) {
+ print CONF "# Kernel Image management overrides\n";
+ print CONF "# See kernel-img.conf(5) for details\n";
+ if ($loader =~ /palo/i) {
+ print CONF "link_in_boot = Yes\n";
+ print CONF "do_symlinks = Yes\n";
+ print CONF "relative_links = Yes\n";
+ print CONF "do_bootloader = No\n";
+ } else {
+ print CONF "do_symlinks = $do_symlink\n";
+ }
+ close CONF;
+ }
+ $have_conffile = "Yes";
+ }
+ }
+
+ if (! $no_symlink && $do_symlink =~ /Yes/i) {
+ my $Old = $realimageloc;
+ my $New = $image_dest;
+ my $Name = "$image_name";
+ my $Link_Dest = "$kimage";
+
+ if ($reverse_symlink) {
+ $Old = $image_dest;
+ $New = $realimageloc;
+ $Name = "$kimage";
+ $Link_Dest = $realimageloc . "$image_name";
+ }
+ if (test_relative ('Old Dir' => $Old,
+ 'New Dir' => $New,
+ 'Test File' => $Name)) {
+ $Old =~ s|^/*||o;
+ }
+ # Special case is they are in the same dir
+ my $rel_path = spath('Old' => "$Old", 'New' => "$New" );
+ $Old ="" if $rel_path =~ m/^\s*$/o;
+
+ symlink($Old . "$Name", "$Link_Dest") ||
+ die("Failed to symbolic-link ${Old}$Name to $Link_Dest:$!");
+ warn "ln -s ${Old}$Name $Link_Dest" if $DEBUG;
+
+ }
+}
+
+# This routine handles the rest of the cases, where the user has requested
+# non-traditional handling, like using cp, or reverse symlinks, or hard links.
+sub handle_non_symlinks {
+ my $kimage = $_[0]; # Name of the symbolic link
+ my $image_dest = $_[1]; # The directory the links goes into
+ my $image_name = $_[2];
+ my $src_dir = $_[3];
+ warn "handle_non_link: kimage=$kimage, image_dest=$image_dest\n" .
+ "\t image_name=$image_name, src_dir=$src_dir" if $DEBUG;
+
+ # Save the current image. We do this in all four cases
+ rename("$kimage", "$kimage.$$") ||
+ die "failed to move " . $image_dest . "$kimage:$!";
+ warn "mv $kimage $kimage.$$" if $DEBUG;
+
+ ##,####
+ # case One
+ #`####
+ if ($no_symlink) {
+ # Maybe /$image_dest is on a dos system?
+ warn "cp -a --backup=t $realimageloc$image_name $kimage" if $DEBUG;
+ my $ret = system("cp -a --backup=t " . $realimageloc
+ . "$image_name " . "$kimage");
+ if ($ret) {
+ if (-e "$kimage.$$") {
+ rename("$kimage.$$", "$kimage");
+ warn "mv $kimage.$$ $kimage" if $DEBUG;
+ }
+ die("Failed to copy " . $realimageloc . "$image_name to "
+ . $image_dest . "$kimage");
+ }
+ }
+ ##,####
+ # case Two
+ #`####
+ elsif ($reverse_symlink) { # Maybe /$image_dest is on a dos system?
+ warn "mv -f $realimageloc$image_name $kimage" if $DEBUG;
+ my $ret = system("mv -f " . $realimageloc . "$image_name "
+ . $image_dest . "$kimage");
+ if ($ret) {
+ if (-e "$kimage.$$") {
+ rename("$kimage.$$", "$kimage");
+ warn "mv $kimage.$$ $kimage" if $DEBUG;
+ }
+ die("Failed to move " . $realimageloc . "$image_name to "
+ . $image_dest . "$kimage");
+ }
+ my $Old = $image_dest;
+ if (test_relative ('Old Dir' => $Old, 'New Dir' => $realimageloc,
+ 'Test File' => "$kimage")) {
+ $Old =~ s|^/*||o;
+ }
+ # Special case is they are in the same dir
+ my $rel_path = spath('Old' => "$Old", 'New' => "$realimageloc" );
+ $Old ="" if $rel_path =~ m/^\s*$/o;
+
+ if ($use_hard_links =~ m/YES/i) {
+ warn "ln " . $Old . "$kimage " . $realimageloc . "$image_name" if $DEBUG;
+ if (! link($Old . "$kimage", $realimageloc . "$image_name")) {
+ warn "Could not link " . $image_dest .
+ "$kimage to $image_name :$!";
+ }
+ }
+ else {
+ warn "ln -s " . $Old . "$kimage " . $realimageloc . "$image_name" if $DEBUG;
+ if (! symlink($Old . "$kimage", $realimageloc . "$image_name")) {
+ warn "Could not symlink " . $image_dest .
+ "$kimage to $image_name :$!";
+ }
+ }
+ }
+ ##,####
+ # case Three
+ #`####
+ elsif ($use_hard_links =~ m/YES/i ) {
+ # Ok then. this ought to be a hard link, and hence fair game
+ # don't clobber $kimage.old quite yet
+ my $Old = $realimageloc;
+ my $cwd;
+ chomp($cwd=`pwd`);
+ if (test_relative ('Old Dir' => $Old, 'New Dir' => $cwd,
+ 'Test File' => "$image_name")) {
+ $Old =~ s|^/*||o;
+ }
+ # Special case is they are in the same dir
+ my $rel_path = spath('Old' => "$Old", 'New' => "$cwd" );
+ $Old ="" if $rel_path =~ m/^\s*$/o;
+
+ warn "ln " . $Old . "$image_name " . "$kimage" if $DEBUG;
+ if (! link($Old . "$image_name", "$kimage")) {
+ warn "mv $kimage.$$ $kimage" if $DEBUG;
+ rename("$kimage.$$", "$kimage");
+ die("Failed to link " . $realimageloc . "$image_name to "
+ . $image_dest . "$kimage");
+ }
+ }
+ ##,####
+ # case Five!?!
+ #`####
+ elsif ($do_symlink) {
+ # Ok then. this ought to be a symlink, and hence fair game
+ # don't clobber $kimage.old quite yet
+ my $Old = $realimageloc;
+ my $cwd;
+ chomp($cwd=`pwd`);
+ if (test_relative ('Old Dir' => $Old, 'New Dir' => $cwd,
+ 'Test File' => "$image_name")) {
+ $Old =~ s|^/*||o;
+ }
+ # Special case is they are in the same dir
+ my $rel_path = spath('Old' => "$Old", 'New' => "$cwd" );
+ $Old ="" if $rel_path =~ m/^\s*$/o;
+
+ warn "symlink " . $Old . "$image_name " . "$kimage" if $DEBUG;
+ if (! symlink($Old . "$image_name", "$kimage")) {
+ warn "mv $kimage.$$ $kimage" if $DEBUG;
+ rename("$kimage.$$", "$kimage");
+ die("Failed to link " . $realimageloc . "$image_name to "
+ . $image_dest . "$kimage");
+ }
+ }
+ ##,####
+ # case Four
+ #`####
+ else {
+ # We just use cp
+ warn "cp -a --backup=t $realimageloc$image_name $kimage" if $DEBUG;
+ my $ret = system("cp -a --backup=t " . $realimageloc
+ . "$image_name " . "$kimage");
+ if ($ret) {
+ if (-e "$kimage.$$") {
+ warn "mv $kimage.$$ $kimage" if $DEBUG;
+ rename("$kimage.$$", "$kimage");
+ }
+ die("Failed to copy " . $realimageloc . "$image_name to "
+ . $image_dest . "$kimage");
+ }
+ }
+ # Ok, now we may clobber the previous .old file
+ warn "mv $kimage.$$ $kimage.old if -e $kimage.$$" if $DEBUG;
+ rename("$kimage.$$", "$kimage.old") if -e "$kimage.$$";
+}
+
+# This routine is responsible for setting up the symbolic links
+# So, the actual kernel image lives in
+# $realimageloc/$image_name (/boot/vmlinuz-2.6.12).
+# This routine creates symbolic links in $image_dest/$kimage (/vmlinuz)
+sub image_magic {
+ my $kimage = $_[0]; # Name of the symbolic link
+ my $image_dest = $_[1]; # The directory the links goes into
+ my $image_name = "$kimage-$version";
+ my $src_dir = $realimageloc;
+ warn "image_magic: kimage=$kimage, image_dest=$image_dest\n" .
+ "\t image_name=$image_name, src_dir=$src_dir" if $DEBUG;
+
+ # Well, in any case, if the destination (the symlink we are trying
+ # to create) is a directory, we should do nothing, except throw a
+ # diagnostic.
+ if (-d "$kimage" ) {
+ die ("Hmm. $kimage is a directory, which I did not expect. I am\n" .
+ "trying to create a symbolic link with that name linked to \n" .
+ "$image_dest . Since a directory exists here, my assumptions \n" .
+ "are way off, and I am aborting.\n" );
+ exit (3);
+ }
+
+ if ($move_image) { # Maybe $image_dest is in on dos, or something?
+ # source dir, link name, dest dir
+ really_move_image( $realimageloc, $image_name, $image_dest);
+ really_reverse_link($realimageloc, $image_name, $image_dest)
+ if $reverse_symlink;
+ return;
+ }
+
+ if (-l "$kimage") { # There is a symbolic link
+ warn "DEBUG: There is a symlink for $kimage\n" if $DEBUG;
+ my $force_move = move_p($kimage, $image_dest, $image_name, $src_dir);
+
+ if ($force_move) {
+ really_move_link($kimage, $image_dest, $image_name, $src_dir);
+ }
+ }
+ elsif (! -e "$kimage") {
+ # Hmm. Pristine system? How can that be? Installing from scratch?
+ # Or maybe the user does not want a symbolic link here.
+ # Possibly they do not want a link here. (we should be in /
+ # here[$image_dest, really]
+ handle_missing_link($kimage, $image_dest, $image_name, $src_dir);
+ }
+ elsif (-e "$kimage" ) {
+ # OK, $kimage exists -- but is not a link
+ handle_non_symlinks($kimage, $image_dest, $image_name, $src_dir);
+ }
+}
+
+######################################################################
+######################################################################
+######################################################################
+######################################################################
+
+# We may not have any modules installed
+if ( -d "$modules_base/$version" ) {
+ print STDERR "Running depmod.\n";
+ my $ret = system("depmod -a $version");
+ if ($ret) {
+ print STDERR "Failed to run depmod\n";
+ exit(1);
+ }
+}
+
+
+
+sub find_initrd_tool {
+ my $hostversion = shift;
+ my $version = shift;
+ print STDERR "Finding valid ramdisk creators.\n";
+ my @ramdisks =
+ grep {
+ my $args =
+ "$_ " .
+ "--supported-host-version=$hostversion " .
+ "--supported-target-version=$version " .
+ "1>/dev/null 2>&1"
+ ;
+ system($args) == 0;
+ }
+ split (/[:,\s]+/, $ramdisk);
+}
+
+# The initrd symlink should probably be in the same dir that the
+# symlinks are in
+if ($initrd) {
+ my $success = 0;
+
+ # Update-initramfs is called slightly different than mkinitrd and
+ # mkinitramfs. XXX It should really be made compatible with this stuff
+ # some how.
+ my $upgrading = 1;
+ if (! defined $ARGV[1] || ! $ARGV[1] || $ARGV[1] =~ m/<unknown>/og) {
+ $upgrading = 0;
+ }
+ my $ret = system("$ramdisk " . ($upgrading ? "-u" : "-c") . " -k " . $version . " >&2");
+ $success = 1 unless $ret;
+ die "Failed to create initrd image.\n" unless $success;
+ if (! defined $ARGV[1] || ! $ARGV[1] || $ARGV[1] =~ m/<unknown>/og) {
+ image_magic("initrd.img", $image_dest);
+ }
+ else {
+ lstat("initrd.img");
+ if (! -e _) {
+ handle_missing_link("initrd.img", $image_dest, "initrd.img-$version",
+ $realimageloc);
+ }
+ else {
+ print STDERR
+ "Not updating initrd symbolic links since we are being updated/reinstalled \n";
+ print STDERR
+ "($ARGV[1] was configured last, according to dpkg)\n";
+ }
+ }
+
+ if ($initrd && -l "initrd" ) {
+ unlink "initrd";
+ }
+
+ if ($initrd && -l "$image_dir/initrd" && ! $link_in_boot) {
+ unlink "$image_dir/initrd";
+ }
+}
+else { # Not making an initrd emage
+ if (-l "initrd.img") {
+ # Ooh, last image was an initrd image? in any case, we should move it.
+ my $target = readlink "initrd.img";
+ my $real_target = '';
+ $real_target = abs_path($target) if defined ($target);
+
+ if (!defined($target) || ! -f "$real_target") {
+ # Eh. dangling link. can safely be removed.
+ unlink("initrd.img");
+ } else {
+ if (-l "initrd.img.old" || ! -e "initrd.img.old" ) {
+ rename("initrd.img", "initrd.img.old");
+ } else {
+ warn "initrd.img.old is not a symlink, not clobbering\n";
+ unlink("initrd.img");
+ }
+ }
+ }
+}
+
+# Warn of a reboot
+if (-x $notifier) {
+ system($notifier);
+}
+
+# Let programs know not to hibernate if the kernel that would be used for
+# resume-from-hibernate is likely to differ from the currently running kernel.
+system("mountpoint -q /var/run");
+if ($? eq 0) {
+ system("touch /var/run/do-not-hibernate");
+}
+
+# Only change the symlinks if we are not being upgraded
+if (! defined $ARGV[1] || ! $ARGV[1] || $ARGV[1] =~ m/<unknown>/og) {
+ image_magic($kimage, $image_dest);
+}
+else {
+ lstat("$kimage");
+ if (! -e _) {
+ handle_missing_link($kimage, $image_dest, "$kimage-$version",
+ $realimageloc);
+ }
+ else {
+ print STDERR
+ "Not updating image symbolic links since we are being updated/reinstalled \n";
+ print STDERR
+ "($ARGV[1] was configured last, according to dpkg)\n";
+ }
+}
+
+# We used to have System.* files in /
+if (-e "/System.map" || -e "/System.old") {
+ unlink '/System.map' if -e '/System.map';
+ unlink '/System.old' if -e '/System.old';
+}
+
+# creating some info about kernel and initrd
+if ($DEBUG) {
+ my $ksize=sprintf("%.0f",(stat($realimageloc .
+ "$kimage-$version"))[7]/1024)."kB";
+ my $initrdsize='';
+ if ($initrd) {
+ $initrdsize=sprintf("%.0f",(stat($realimageloc .
+ "initrd.img-$version"))[7]/1024)."kB";
+ }
+
+ print STDERR <<"EOMSG";
+A new kernel image has been installed at $realimageloc$kimage-$version
+ (Size: $ksize)
+
+Symbolic links, unless otherwise specified, can be found in $image_dest
+
+EOMSG
+ ;
+
+ if ($initrd) {
+ print STDERR <<"EOMSGA";
+
+ Initial rootdisk image: ${realimageloc}initrd.img-$version (Size: $initrdsize)
+EOMSGA
+ ;
+ }
+}
+
+# set the env var stem
+$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 ($postinst_hook) {
+ &run_hook("postinst", $postinst_hook);
+}
+
+if (-d "/etc/kernel/postinst.d") {
+ print STDERR "Examining /etc/kernel/postinst.d.\n";
+ system ("run-parts --verbose --exit-on-error --arg=$version " .
+ "--arg=$realimageloc$kimage-$version " .
+ "/etc/kernel/postinst.d") &&
+ die "Failed to process /etc/kernel/postinst.d";
+}
+
+if (-d "/etc/kernel/postinst.d/$version") {
+ print STDERR "Examining /etc/kernel/postinst.d/$version.\n";
+ system ("run-parts --verbose --exit-on-error --arg=$version " .
+ "--arg=$realimageloc$kimage-$version " .
+ "/etc/kernel/postinst.d/$version") &&
+ die "Failed to process /etc/kernel/postinst.d/$version";
+}
+
+LOADER: {
+ last unless $do_boot_enable; # Exit if explicitly asked to
+
+ last if $loader =~ /silo/i; # SILO does not have to be executed.
+ last if $loader =~ /yaboot/i; # yaboot does not have to be executed.
+ last if $loader =~ /milo/i; # MILO does not have to be executed.
+ last if $loader =~ /nettrom/i; # NETTROM does not have to be executed.
+ last if $loader =~ /arcboot/i; # ARCBOOT does not have to be executed.
+ last if $loader =~ /delo/i; # DELO does not have to be executed.
+ last if $loader =~ /quik/i; # maintainer asked quik invocation to be ignored
+
+ last unless $loaderloc;
+ last unless -x $loaderloc;
+ last unless $do_bootloader;
+
+ if (-T "/etc/$loader.conf") {
+ # Trust and use the existing lilo.conf.
+ print STDERR "You already have a $Loader configuration in /etc/$loader.conf\n";
+ my $ret = &run_lilo();
+ exit $ret if $ret;
+ }
+}
+
+
+sub run_lilo (){
+ my $ret;
+ # Try and figure out if the user really wants lilo to be run --
+ # since the default is to run the boot laoder, which is ! grub -- but
+ # the user may be using grub now, and not changed the default.
+
+ # So, if the user has explicitly asked for the loader to be run, or
+ # if there is no postinst hook, or if there is no grub installed --
+ # we are OK. Or else, we ask.
+ if ($explicit_do_loader || (! ($postinst_hook && -x '/usr/sbin/grub'))) {
+ print STDERR "Running boot loader as requested\n";
+ } else {
+ print STDERR "Ok, not running $loader\n";
+ }
+ if ($loader =~ /^lilo/io or $loader =~ /vmelilo/io) {
+ print STDERR "Testing $loader.conf ... \n";
+ unlink $temp_file_name; # security
+ $ret = system("$loaderloc -t >$temp_file_name 2>&1");
+ if ($ret) {
+ print STDERR "Boot loader test failed\n";
+ return $ret;
+ }
+ unlink "$temp_file_name";
+ print STDERR "Testing successful.\n";
+ print STDERR "Installing the ";
+ print STDERR "partition " if $loader =~ /^lilo/io;
+ print STDERR "boot sector... \n";
+ }
+
+ print STDERR "Running $loaderloc ... \n";
+ if ($loader =~ /^elilo/io) {
+ $ret = system("$loaderloc 2>&1 | tee $temp_file_name");
+ } else {
+ $ret = system("$loaderloc >$temp_file_name 2>&1");
+ }
+ if ($ret) {
+ print STDERR "Boot loader failed to run\n";
+ return $ret;
+ }
+ unlink $temp_file_name;
+ print STDERR "Installation successful.\n";
+ return 0;
+}
+
+exit 0;
+
+__END__
+
projects / mirror_ubuntu-artful-kernel.git / blobdiff