+++ This bug was initially created as a clone of Bug #646284 +++

Description of problem:
When rhn-virtualization-host package is updated, the links of the service script under /etc/rc.d/rcX.d are deleted.


Version-Release number of selected component (if applicable):

  * rhn-virtualization-host (All released version)

How reproducible:

1. Check package's version.
  (e.g. update from 5.3.0-14.el5sat to 5.3.0-18.el5sat.)
  # rpm -q rhn-virtualization-host
  rhn-virtualization-host-5.3.0-14.el5sat

2. Check the registration of service script.
  # chkconfig --list | grep rhn-virtualization-host
  rhn-virtualization-host	0:off	1:off	2:on	3:on	4:on	5:on	6:off

3. Update package.
  # yum update -y rhn-virtualization-host
  # rpm -q rhn-virtualization-host
  rhn-virtualization-host-5.3.0-18.el5sat
  
  
Actual results:
  # chkconfig --list | grep rhn-virtualization-host
  (no outputs)

Expected results:
  # chkconfig --list | grep rhn-virtualization-host
  rhn-virtualization-host	0:off	1:off	2:on	3:on	4:on	5:on	6:off


Additional info:

A cause was found in the installation script of the rhn-virtualization-host.

  # rpm -q rhn-virtualization-host --scripts
  postinstall scriptlet (using /bin/sh):
  /sbin/chkconfig --add rhn-virtualization-host
  /sbin/service crond condrestart
  preuninstall scriptlet (using /bin/sh):
  /sbin/chkconfig --del rhn-virtualization-host
  postuninstall scriptlet (using /bin/sh):
  /sbin/service crond condrestart

The above script has not been considered for the state registration of a service script under /etc/rc.d/rcX.d/.

Possible fix:
----------------------------------------------------------------------
@@ -85,7 +85,9 @@
 /sbin/service crond condrestart
 
 %preun host
-/sbin/chkconfig --del rhn-virtualization-host
+if [ $1 = 0 ]; then
+  /sbin/chkconfig --del rhn-virtualization-host
+fi
 
 %postun host
 /sbin/service crond condrestart
----------------------------------------------------------------------

Even if we release a new package which includes the above patch, updating to the package doesn't work as expected because the updating uses preun section in old package. Thus, we need to update twice to get an expected result.

Updating from old package to new package(but old preun section is used):
----------------------------------------------------------------------
[root@yzsv58 ~]# rpm -q rhn-virtualization-host
rhn-virtualization-host-5.4.14-8.el5sat
[root@yzsv58 ~]# chkconfig --list | grep rhn-virtualization-hostrhn-virtualization-host 0:off   1:off   2:on    3:on    4:on    5:on    6:off
[root@yzsv58 ~]# rpm -Uhv rhn-virtualization-host-5.4.14-9.bz646284.el5.noarch.rpm rhn-virtualization-common-5.4.14-9.bz646284.el5.noarch.rpm 
準備中...                ########################################### [100%]
   1:rhn-virtualization-comm########################################### [ 50%]
   2:rhn-virtualization-host########################################### [100%]
crond を停止中: [  OK  ]
crond を起動中: [  OK  ]
crond を停止中: [  OK  ]
crond を起動中: [  OK  ]
[root@yzsv58 ~]# chkconfig --list | grep rhn-virtualization-host
[root@yzsv58 ~]# 
----------------------------------------------------------------------

Updating from new package to 2nd new package(preun section in 1st new package is used):
----------------------------------------------------------------------
[root@yzsv58 ~]# rpm -q rhn-virtualization-hostrhn-virtualization-host-5.4.14-9.bz646284.el5
[root@yzsv58 ~]# chkconfig --list | grep rhn-virtualization-hostrhn-virtualization-host 0:off   1:off   2:on    3:on    4:on    5:on    6:off
[root@yzsv58 ~]# rpm -Uhv rhn-virtualization-host-5.4.14-10.bz646284.el5.noarch.rpm rhn-virtualization-common-5.4.14-10.bz646284.el5.noarch.rpm 
準備中...                ########################################### [100%]
   1:rhn-virtualization-comm########################################### [ 50%]
   2:rhn-virtualization-host########################################### [100%]
crond を停止中: [  OK  ]
crond を起動中: [  OK  ]
crond を停止中: [  OK  ]
crond を起動中: [  OK  ]
[root@yzsv58 ~]# chkconfig --list | grep rhn-virtualization-host
rhn-virtualization-host 0:off   1:off   2:on    3:on    4:on    5:on    6:off
----------------------------------------------------------------------

It looks confusable, so if you have any questions please let me know.

Regards,
M Yamazaki