[YUM] Yum on critical system or embedded linux, have you ever tried ?

[Fajar A. Nugraha]

tung dang wrote:
> Dear friends,
> Thanks for your reply.
> As i known, Yum is written in python script  language, so it requires 
> interpreter. This make Yum slowly than some update tools.
Seth could probably tell you more about this, but I don't think the main 
cause for yum to be "slow" is not because it's written in python.
> If you don't mind, can you tell me more about the main differences 
> between Yum3.xx and Yum2.xx, that make the speed of Yum3.xx has 
> greatly improved.
>
There's the metadata parser and sqlite cache, which makes processing 
package information faster.
There's also a whole lot of optimization, which in my case made yum with 
priorities plugin on RHEL5 + yum 3.2 MUCH faster compared to RHEL4 with 
yum 2.x.

yum 3.x and yum 2.x has different requirements (in particular python and 
rpm version). See http://linux.duke.edu/projects/yum/download.ptml for 
details.

Centos4 comes with yum 2.4.3, and I suggest you stick with that if you 
decide to use yum. I tried yum 2.6 on RHEL4 but had some problems, so 
reverted back to 2.4. yum >=3 won't work because it needs python >= 2.4.

If you want to use apt(+synaptic), you may want to start from Lineox 4. 
It still uses old version of apt, so I believe it can't use yum 
repositories.

Since you're using Centos 4.5 I suggest you stick with their version of 
yum. A better solution would be if you can use Centos 5, which comes 
with yum 3. You can update it (manually) to latest yum 3.2.8 if you want :)

Regards,

Fajar
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