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#!/usr/bin/perl
# this script takes command kernel rpms (either installed rpms or rpm files)
# and create various files in all_kernels/:
# all.kernels/VER/all_modules.tar (used for all.rdz)
# all.kernels/VER/modules.dep
# all.kernels/VER/modules.alias
# all.kernels/VER/vmlinuz
use lib '../kernel';
use MDK::Common;
use list_modules;
(my $karch = arch()) =~ s/^i.86$/i586/;
my $rpm = 'rpm --nosignature';
@ARGV or die "usage: ./update_kernel [--move] (<kernel rpm> ... | <installed kernel name> ...)\n";
eval { rm_rf('all.kernels') }; #- remove old things
mkdir 'all.kernels';
my @kernels = map {
my $kern_ver = rpm2version($_);
if (/\.rpm$/) {
extract_kernel($_, $kern_ver);
} else {
extract_installed_rpm('', $kern_ver);
}
$kern_ver;
} @ARGV;
output('all.kernels/.list', map { "$_\n" } @kernels);
sub system_verbose { print join(' ', @_), "\n"; system(@_) }
sub sys { &system_verbose; $? and die }
sub rpm2version {
my ($kernel_rpm) = @_;
my $opt = -e $kernel_rpm ? '-qpl' : '-ql';
`$rpm $opt $kernel_rpm` =~ m!/boot/vmlinuz-(.*)! && $1 or die "can't find vmlinuz in $kernel_rpm (is it installed?)\n";
}
sub extract_kernel {
my ($kernel_rpm, $kern_ver) = @_;
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', $kern_ver);
rm_rf("$local_dir/modules");
}
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