From c5937dc3e09ec5268f95e6020c64e561cf152abd Mon Sep 17 00:00:00 2001
From: Thierry Vignaud <tv@mageia.org>
Date: Tue, 21 Feb 2012 17:49:23 +0000
Subject: (migrate_back_rpmdb_db_to_4_6) downgrade from rpm-4.9 to 4.8 db when
 installing mga1 in a chroot from mga2+ (mga#4590)

---
 NEWS        |  2 ++
 urpm/sys.pm | 12 ++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/NEWS b/NEWS
index b3665103..2e8a1d00 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,8 @@
   o return the proper error code in some cases when failing to install some
     packages
   o kill unused DUDF support (mga#4493)
+  o downgrade from rpm-4.9 to 4.8 db when installing mga1 in a chroot from
+    mga2+ (mga#4590)
   o --test: do not display "More information on package"
   o --test: do not update /var/lib/rpm/installed-through-deps.list
 - fix $ARCH and $VERSION keyword substition in media url
diff --git a/urpm/sys.pm b/urpm/sys.pm
index da0c26e7..0ac01aec 100644
--- a/urpm/sys.pm
+++ b/urpm/sys.pm
@@ -254,11 +254,23 @@ sub migrate_back_rpmdb_db_to_hash_8 {
     }
 }
 
+sub migrate_back_rpmdb_db_to_4_6 {
+    my ($urpm, $root) = @_;
+    $urpm->{info}("migrating back the created rpm db from rpm-4.9 to rpm-4.6/4.8");
+    if (system('chroot', $root, 'rpm', '--rebuilddb') == 0) {
+	$urpm->{log}("rpm db downgraded successfully");
+    } else {
+	$urpm->{error}("rpm db downgrade failed. You will not be able to run rpm chrooted");
+    }
+}
+
 sub migrate_back_rpmdb_db_version {
     my ($urpm, $root) = @_;
 
     if ($urpm->{need_migrate_rpmdb} eq '4.6') {
 	migrate_back_rpmdb_db_to_hash_8($urpm, $root);
+    } elsif ($urpm->{need_migrate_rpmdb} eq '4.8') {
+	migrate_back_rpmdb_db_to_4_6($urpm, $root);
     }
 
     clean_rpmdb_shared_regions($root);
-- 
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