[Yum] Comparison between update tools

[Fajar A. Nugraha]

David Timms wrote:
> Giap Phan Vu wrote:
>> I'm making compare between YUM, APT-RPM and Smart update tools but I
>> really do not know what is the strongest, the weakness of these
>> tools.
>>
>> The target platform is CentOS (or Wind River)
>
> I like yum {haven't used apt-rpm, smart for some time} because it's
> extensible nature allows a config that does what I wan't {skip-broken,
> download-only, version lock (good for eg machines running vmware where a
> kernel update stops stuff working)} 

For me the main advantages of yum over smart (which can also handle yum 
repositories) is that :
- yum is the official package manager for RHEL, meaning that I can 
download packages from RHN (with yum-rhn-plugin activated) via command 
line script.
- yum (yum-utils, actually) has yumdownloader, reposync, and repotrack, 
which is handy if you want to create local repository mirrors. 
Especially useful if you have lots of servers and want to save bandwitdth.
- yum-utils has yum-priorities plugin, which is important because in our 
setup we need to replace some upstream packages. yum-priorities make 
sure packages in our local repository doesn't get overwritten by other 
sources. It can also be used the other way around, to make sure that 
RHEL/Centos RPMs doesn't get overwritten by packages from third-party 
repositories.

apt-rpm (and synaptic) is another beast altogather, and not all 
RHEL/Centos repositories support downloading with apt.

Regards,

Fajar
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