From b4222fa105800fd7ad0c75d92fbe00c558f2cee3 Mon Sep 17 00:00:00 2001
From: Pascal Rigaux <pixel@mandriva.com>
Date: Thu, 9 Aug 2007 10:45:56 +0000
Subject: - update_kernel: now require install rpms or rpm files as arguments  
 (this allow specifying precisely which installed kernels are used)

nb:
- RPMS/ is not used anymore, pkgs given an command line are installed directly in all.kernels/
- RPMS/.main is replaced by all.kernels/.list which keeps the ordering of kernels given to update_kernel
---
 images/update_kernel | 47 ++++++++++++++++-------------------------------
 1 file changed, 16 insertions(+), 31 deletions(-)

(limited to 'images/update_kernel')

diff --git a/images/update_kernel b/images/update_kernel
index b39342c33..9429a209a 100755
--- a/images/update_kernel
+++ b/images/update_kernel
@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 
-# this script takes kernels rpms from RPMS/ or /lib/modules/<VER>
+# 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
@@ -17,50 +17,37 @@ my $rpm = 'rpm --nosignature';
 
 my $MOVE = $ARGV[0] eq '--move' && shift;
 
-@ARGV <= 1 or die "usage: ./update_kernel [--move] [<kernel rpm>]\n";
+@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 $main = chomp_(cat_('RPMS/.main'));
+my @kernels = map {
+    my $kern_ver = rpm2version($_);
+    if (/\.rpm$/) {
+	extract_kernel($_, $kern_ver);
+    } else {
+	extract_installed_rpm('', $kern_ver);
+    }
+    $kern_ver;
+} @ARGV;
 
-if (@ARGV) {
-    install_kernel($ARGV[0]);
-}
+sys('cp', '-f', "all.kernels/$kernels[0]/modules.description", '.');
 
-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('/', $_) foreach @l;
-}
+output('all.kernels/.list', map { "$_\n" } @kernels);
 
 sub system_verbose { print join(' ', @_), "\n"; system(@_) }
 sub sys { &system_verbose; $? and die }
 
 sub rpm2version {
     my ($kernel_rpm) = @_;
-    `$rpm -qpl $kernel_rpm` =~ m!/boot/vmlinuz-(.*)! && $1 or die "can't find vmlinuz in $kernel_rpm\n";
-}
-
-sub install_kernel {
-    my ($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");
-    }
+    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 ($kernel_rpm) = @_;
+    my ($kernel_rpm, $kern_ver) = @_;
 
-    my $kern_ver = rpm2version($kernel_rpm);
     my $dir = "all.kernels/$kern_ver";
 
     warn "Extracting kernel $kern_ver\n";
@@ -90,9 +77,7 @@ sub extract_installed_rpm {
     }
 
     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");
 }
-- 
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