#!/usr/bin/perl # this script takes kernels rpms from RPMS/ and create various files in all_kernels/ # for each rpms in RPMS, it does: # RPMS/kernel-VER-*.rpm -> # all.kernels/VER/all_modules.tar (used for all.rdz) # all.kernels/VER/modules.dep # all.kernels/VER/modules.alias # all.kernels/VER/vmlinuz # # if RPMS is empty, this script tries to find kernels in $kernel_repository use lib '../kernel'; use MDK::Common; use list_modules; (my $karch = arch()) =~ s/^i.86$/i586/; my $kernel_repository = chomp_(cat_('.repository')); my $rpm = 'rpm --nosignature'; my $MOVE = $ARGV[0] eq '--move' && shift; @ARGV <= 1 or die "usage: ./update_kernel [--move] [<kernel rpm>]\n"; eval { rm_rf('all.kernels') }; #- remove old things mkdir 'all.kernels'; my $main = chomp_(cat_('RPMS/.main')); if (@ARGV) { install_kernel($ARGV[0]); } elsif (! -d 'RPMS' && $kernel_repository) { get_kernels_from_repository(); } if (glob("RPMS/*.rpm")) { extract_kernel($_) foreach glob("RPMS/*.rpm"); } else { my @l = all('/lib/modules'); @l = grep { /legacy/ } @l if arch() =~ /i.86/; extract_installed_rpm('/', $_) foreach @l; } sub system_verbose { print join(' ', @_), "\n"; system(@_) } sub sys { &system_verbose; $? and die } sub rpm2version { my ($kernel_rpm) = @_; `$rpm -qpl $kernel_rpm` =~ m!/boot/vmlinuz-(.*)! && $1 or die "can't find vmlinuz in $kernel_rpm\n"; } sub get_kernels_from_repository() { sub look_for { my ($name, $repository) = @_; my $rpm_wildcard = 'kernel-' . ($name ? "$name-" : arch() =~ /i.86/ ? 'legacy-' : '') . '2.6*.rpm'; my @l = glob("$repository/$rpm_wildcard") or die "no $name kernel found in $repository matching $rpm_wildcard\n"; @l; } my @kernels; push @kernels, look_for('', $kernel_repository); install_kernel($_) foreach @kernels; } sub install_kernel { my ($kernel_rpm) = @_; my $basename = basename($kernel_rpm); warn "Installing rpm $basename in RPMS\n"; mkdir 'RPMS'; cp_af($kernel_rpm, "RPMS/$basename"); if (!$main) { $main = rpm2version($kernel_rpm); output('RPMS/.main', "$main\n"); } } sub extract_kernel { my ($kernel_rpm) = @_; my $kern_ver = rpm2version($kernel_rpm); my $dir = "all.kernels/$kern_ver"; warn "Extracting kernel $kern_ver\n"; eval { rm_rf($dir) }; mkdir_p("$dir/modules"); sys("rpm2cpio $kernel_rpm | (cd $dir ; cpio -id)"); extract_installed_rpm($dir, $kern_ver); eval { rm_rf("$dir$_") } foreach qw(/boot /lib /usr); } sub extract_installed_rpm { my ($installed_dir, $kern_ver) = @_; my $local_dir = "all.kernels/$kern_ver"; mkdir_p("$local_dir/modules"); sys('cp', "$installed_dir/boot/vmlinuz-$kern_ver", "$local_dir/vmlinuz"); sys("cp $installed_dir/lib/modules/$kern_ver/modules.* $local_dir"); open(my $F, "find $installed_dir/lib/modules/$kern_ver -name '*.ko.gz' |"); my $file; while ($file = <$F>) { chomp($file); system('cp', $file, "$local_dir/modules/" . basename($file)) == 0 or warn "conflict for $file\n"; } sys('perl', '../kernel/modules.pl', 'remove_unneeded_modules', $kern_ver); sys('perl', '../kernel/modules.pl', 'make_modules_per_image', $kern_ver); sys('cp', '-f', "$local_dir/modules.description", '.') if $kern_ver eq $main || !$main; rm_rf("$local_dir/modules"); }