[CentOS] yum update download only?

[Johnny Hughes]

Lorenzo Quatrini wrote:
> Johnny Hughes ha scritto:
>> Kenneth Porter wrote:
>>> Googling for this feature, I saw reports from the yum developer that it
>>> wasn't yet implemented. This was in mailing list posts from a year or
>>> more ago. Did it ever make it into the yum code?
>>>
>>> I want to start downloading the updates for a server going from 5.0 to
>>> 5.1 and then do the actual installation once I'm on site. I don't want
>>> to have to wait around while there for the download to proceed. I'd
>>> rather have all the packages ready in the yum cache when I get there.
>>
>> There is a yum plugin to do this ... it is called yum-downloadonly, so
>>
>> yum install yum-downloadonly
>>
>> Afterwards do this to see how to use the pluging:
>>
>> yum --help
>>
>> Basically ...
>>
>> yum --downloadonly upgrade
>>
>> This will put all the updates into the /var/cache/yum/
>>
>> (This will be all the updates for the packagelist on the current machine
>> ... so if you want to get them all, make sure to duplicate the machine
>> packagelist you want to get the downloads for)
>>
>> you can then copy these files to the new machine(s) /var/cache/yum/
>>
>> Thanks,
>> Johnny Hughes
>>
> 
> What about centos 4? Does exists something similar?

Yes, but it is part of the yum-utils package for CentOS-4:

rpm -q yum-utils

If you do not have yum-utils installed:

yum install yum-utils

Then:

man yumdownloader

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