[Yum] Is yum.conf installonly_limit working properly ?

[rotru at br.ibm.com]

According the the yum.conf man page, setting installonly_limit = 0 will 
disable the feature, what I suppose that ALL packages will be updated 
only.
I tested in Fedora 13 (3.2.27-4) and RHEL6 beta (2.3.27-9) setting it to 0 
and tried to update the kernel (had only one kernel installed).

In both cases the kernels were installed and not updated.

I could update the kernel only when I added the option "installonlypkgs" 
in yum.conf and set it to "nothing".

So, is there a minor bug in installonly_limit when set to 0 or I must 
always set "installonlypkgs="


Another point: the yum.conf is outdated, because it says
"installonlypkgs:  List of packages that should only ever be installed, 
never updated.  Kernels  in
                                particular fall into this category. 
Defaults to kernel, kernel-smp, kernel-bigmem, kernel-enter-
                                prise, kernel-debug, kernel-unsupported."

and in the yum code (from /usr/lib/pythonXX/site-packages/yum/config.py):

installonlypkgs = ListOption(['kernel', 'kernel-bigmem', 
'kernel-enterprise','kernel-smp', 'kernel-modules', 'kernel-debug', 
                                                    'kernel-unsupported', 
'kernel-source', 'kernel-devel', 'kernel-PAE', 'kernel-PAE-debug'])



Regards

Rodrigo Trujillo
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