[CentOS] downgrade

Fri Apr 2 19:07:08 UTC 2010
m.roth at 5-cent.us <m.roth at 5-cent.us>

mattias wrote:
> On Fri, 2010-04-02 at 14:50 -0400, Kwan Lowe wrote:
>> On Fri, Apr 2, 2010 at 2:46 PM, mattias <mj at mjw.se> wrote:
>> > i maybe asked the question litle wrong
>> > i meen
>> > i have centos 5.0 now
>> > but can i downgrade to e.g let's say 2.0?
>> No, won't work.
>> You can, as someone suggested, back up your files and re-install but
>> there's very little chance application data and files will be
>> compatible.

> hmm ok but i can upgrade to 5.3?
> how can i upgrade to 5.3 but not downgrade to 2.0?

May I strongly suggest that you read up on computers and operating
systems? You don't seem to understand what you're asking - it's like
asking if, from Windows Vista, you can downgrade to NT 4, and expect
anything but text files to be workable.

A subrelease upgrade or downgrade is not that scary - they've been tested
a lot, and that's just yum upgrade. But when a new full release comes out
- like 4, or 5, or 6, you *really* want to back everything up and do a
fresh install; otherwise, there's too many incompatibilities (such as,
say, python 2.x.x and 2.y.x), and you're asking for problems.