[ydl-gen] Upgrade rant, was: Re: over-the-wire upgrading of 4.01 to 4.1

[Albrecht Dreß]

Am 18.03.06 20:01 schrieb(en) Jim Hart:
>> You _can_ in fact upgrade from one version of Linux to another, even  
>> with YDL.
> 
> How?

By carefully replacing rpm's with the newer versions. I don't say that  
this is easy, in particular with applications linking against libstdc++,  
but is /does/ work. On my box, I have ~900 rpm's installed, a mixture of  
YDL 4.1 (~700), several self-compiled ones and even some left-overs from  
LinuxPPC (1999?).

As long as you /only/ use rpm's, the upgrade needs some experience, but it  
will result in a working system after a reasonable amount of work. If you  
have self-compiled stuff (I e.g. have Firefox 1.5.0.1, OpenOffice 2.0.1  
and Eclipse) around it will of course need more attention as the rpm  
system doesn't take care of keeping all lib dependencies, but, again, with  
some care it works. I did even upgrade a company server from (Intel)  
Redhat 9 to FC 4 (which included a change from Linux kernel 2.4 to 2.6)  
with the need to reboot at the very end of the process, and it *did* work.

Just my € 0.01...

Cheers, Albrecht.

-- 
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  Albrecht Dreß  -  Johanna-Kirchner-Straße 13  -  D-53123 Bonn (Germany)
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