[elrepo] Installation of acroread will pull in the ATI graphics driver from ELRepo

[Manuel Wolfshant]

On 03/16/2011 01:36 AM, Phil Perry wrote:
> On 15/03/11 23:25, Phil Perry wrote:
>> On 15/03/11 20:30, Phil Schaffner wrote:
>>> Akemi Yagi wrote on 03/15/2011 04:02 PM:
>>>> Hi all,
>>>>
>>>> This issue was first reported in the CentOS forum:
>>>>
>>>> http://www.centos.org/modules/newbb/viewtopic.php?topic_id=30539&forum=14
>>>>
>>>> On RHEL-6 (or SL-6), if you run 'yum install acroread' with elrepo
>>>> enabled, that would pull in kmod-fglrx and fglrx-x11-drv.
>>> This will not happen if mesa-libGL is already installed, at least with
>>> the Adobe AdobeReader_enu package.
>>>
>> $ rpm -qp --requires AdbeRdr9.4.2-1_i486linux_enu.rpm | grep libGL
>> libGL.so.1
>>
>> The issue is that both mesa-libGL and fglrx-x11-drv(-32bit) provide
>> libGL.so.1.
>>
>> When elrepo is installed (and enabled), it appears to take priority over
>> packages from RHN for satisfying dependencies.
>>
> Interestingly, the nvidia packages also satisfy that dependency in
> providing libGL.so.1, so I wonder why yum picks the fglrx package over
> any of the nvidia packages? Perhaps it's just alphabetical in the case
> of many packages meeting an uninstalled dependency, all other things
> being equal.
yum has a complex algorithm, but you are right, in some of  the cases 
it's pure alphabetical. try yum provides MTA or server(smtp), smtpd, 
smtpdaemon