Re: Fedora home server using core 9
- From: Marko Vojinovic <vvmarko@xxxxxxxxxxx>
- Date: Tue, 2 Sep 2008 18:51:54 +0000
On Monday 01 September 2008 07:12, g wrote:
Frode Petersen wrote:[snip]
Just curious, as I'm about to install one of them alongside F9: Is there
any reason to choose one over the other? My impression is that they are
pretty much equivalent choices, but that might be a superficial
observation for all I know.
in fairness to centos, i tried it a few years back, but felt it a bit
awkward. i have been told that it has improved, but i have not tried it
again, so i can not offer comparison of it to sl [scientific linux].
i would hate to think that either fermi or cern would use something that
they did not feel totally safe with.
i do not consider what i do to be anywhere near as critical or crucial, but
it is comforting to know that i am in 'good company' with my system and
data.
as far as support, these people are 'professional'. what more can one ask
for?
Ok, everyone already pointed out that both SL and CentOS are almost identical
clones of RHEL. So each of those distros should give you more-or-less
equivalent functionality.
But the real reason for the existence of SL is not just "yet another distro".
The SL distro has rather specific purpose --- to form a common basic
operating system infrastructure for all institutions that are to become and
operate as "grid sites" (see the CERN homepage to find out about "the grid").
This means the following --- in the future, RHEL and derivatives (like CentOS)
might possibly push some updates that could interfere with the custom-made
grid middleware software installed on those sites. If all sites were running
--- say --- CentOS, this single system/whatever update could threaten to
bring down the whole grid.
This is of course unacceptable, so Cern and Fermilab decided to roll their own
RHEL clone, and *require* all grid sites to use it, in order to have control
over what updates get pushed to them, and eventually refrain some "dangerous"
updates made at RHEL to reach the grid sites. And they have a team of experts
carefully examining each update of RHEL/CentOS/whatever to render it "safe"
or "unsafe" for SL.
This is of course neccessary for grid sites, but for an ordinary user this
means that SL will in time start lagging behind in being updated, and some
updates may well never reach the users of SL.
The bottom line is that SL, CentOS and RHEL are equivalent *now*, but in
future this may/will not be so, and SL will be regarded as "older".
If I were an ordinary user/admin of a system unrelated to Cern and/or grid
stuff, I would stick to CentOS and leave SL to people who really need it and
use it. SL has a well defined target of who its users are and what it is used
for --- if you do not recognize yourself to be among those target users, my
suggestion is to leave it alone.
HTH, :-)
Marko
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