Hi Owen,

On 20/08/15 15:31, Lamar Owen wrote:
> On 08/20/2015 03:44 AM, Paul Millar wrote:
>> Hi guys,
>>
>> I previously reported that RPM building failed after the upgrade
>> because of changes to macros.
>>
>> I've just discovered another problem: after the upgrade, binary
>> payloads are compressed with xz (instead of gzip) and file digests use
>> SHA-256 by default, instead of MD5.
 >
> What versions of SL are we talking about here?  What version were you
> running, and what version are you running now?

The problem affected three build machines:

[root@vm-dcache-wn-sl6 ~]# lsb_release -a
LSB Version: 
:base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
Distributor ID: Scientific
Description:    Scientific Linux release 6.6 (Carbon)
Release:        6.6
Codename:       Carbon


[root@sisyphus ~]# lsb_release -a
LSB Version: 
:base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch
Distributor ID: Scientific
Description:    Scientific Linux release 6.6 (Carbon)
Release:        6.6
Codename:       Carbon


[root@dcache-tb02 ~]# lsb_release -a
LSB Version: 
:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
Distributor ID: Scientific
Description:    Scientific Linux release 6.2 (Carbon)
Release:        6.2
Codename:       Carbon


All three machines were updated to the latest rpm packages 
(automatically by yum):

[root@vm-dcache-wn-sl6 ~]# rpm -qa|grep rpm
rpm-libs-4.8.0-47.el6.x86_64
redhat-rpm-config-9.0.3-44.sl6.noarch
rpm-4.8.0-47.el6.x86_64
rpm-build-4.8.0-47.el6.x86_64
rpm-python-4.8.0-47.el6.x86_64


[root@sisyphus ~]# rpm -qa|grep rpm
redhat-rpm-config-9.0.3-44.sl6.noarch
rpm-libs-4.8.0-47.el6.x86_64
rpm-python-4.8.0-47.el6.x86_64
rpm-build-4.8.0-47.el6.x86_64
rpm-4.8.0-47.el6.x86_64


[root@dcache-tb02 ~]# rpm -qa|grep rpm
rpm-python-4.8.0-47.el6.x86_64
rpm-libs-4.8.0-47.el6.x86_64
redhat-rpm-config-9.0.3-44.sl6.noarch
rpm-build-4.8.0-47.el6.x86_64
rpm-4.8.0-47.el6.x86_64


The update to 4.8.0-47 introduced the dependency on redhat-rpm-config

[root@sisyphus ~]# rpm -q --provides redhat-rpm-config
system-rpm-config
redhat-rpm-config = 9.0.3-44.sl6

[root@sisyphus ~]# rpm -q --whatrequires redhat-rpm-config
no package requires redhat-rpm-config

[root@sisyphus ~]# rpm -q --whatrequires system-rpm-config
rpm-build-4.8.0-47.el6.x86_64

[root@sisyphus ~]# ls PreviousWorkingRPMs/
rpm-4.8.0-37.el6.x86_64.rpm        rpm-libs-4.8.0-37.el6.x86_64.rpm
rpm-build-4.8.0-37.el6.x86_64.rpm  rpm-python-4.8.0-37.el6.x86_64.rpm


[root@sisyphus ~]# rpm -q --requires -p PreviousWorkingRPMs/rpm-* | 
egrep '(redhat|system)-rpm-config'
[root@sisyphus ~]#


The file /usr/lib/rpm/redhat/macros introduces the problem by redefining 
the defaults to SL-5 incompatible values:

[root@sisyphus ~]# egrep '_payload|filedigest' /usr/lib/rpm/redhat/macros
%_source_filedigest_algorithm 8
%_binary_filedigest_algorithm 8
%_binary_payload w2.xzdio


The /usr/lib/rpm/redhat/macros file is supplied by the redhat-rpm-config 
RPM, that the security update pulled in:

[root@sisyphus ~]# rpm -qf /usr/lib/rpm/redhat/macros
redhat-rpm-config-9.0.3-44.sl6.noarch


HTH,

Paul