[CentOS] xfs on 5.2 (live cd + dvd)

Johnny Hughes johnny at centos.org
Tue Jul 29 21:15:35 UTC 2008


Bill Campbell wrote:
> On Tue, Jul 29, 2008, Johnny Hughes wrote:
>> Bill Campbell wrote:
>>> On Tue, Jul 29, 2008, Florin Andrei wrote:
>>>> Michael Kress wrote:
>>>>> I'm planning a server migration and being able to mount xfs file  
>>>>> systems with the live cd would be a cruical feature.
>>>>> So before I download and try ... can anyone tell me whether the xfs 
>>>>> is  included in the 5.2 live cd?
>>>> Well, try "yum install" with the "xfs" string and various wildcards 
>>>> and  you'll figure it out quickly.
>>>>
>>>>> Under centos-4.5 I chose xfs for performance reasons. With 5.2, is 
>>>>> it  still the fs of choice when it comes to performance or do you 
>>>>> have  better recommendations? (It will be a combined web and mail 
>>>>> server with moderate traffic, i.e. not toooo much but not tooo 
>>>>> little).
>>>> Performance is not "one", it's "many". There are so many different   
>>>> scenarios and in most cases it's impossible to tell whether any given 
>>>> FS  will perform better than another.
>>>>
>>>> XFS will likely perform better than other FS when you're dealing with 
>>>>  large files, such as HD authoring and stuff like that. Even then, if 
>>>> you  want to be sure, it's probably best to do some benchmarks.
>>> While I have used xfs for years on SuSE systems, and have it on
>>> several CentOS 5.1 systems, I will probably not use it on new
>>> installations as ``yum update'' on the CentOS 5.1 systems now
>>> fails saying it cannot update kmod-xfs.
>>>
>>> I prefer to keep things close to the LCD to avoid issues with
>>> extensions that may not be updated in a timely manner.
>> You should be able to update the xfs modules ... they are in the repo  
>> (at least for 5.2 ... 5.1 is not going to get any updates any more and  
>> is moving to vault soon);
> 
> Let's see now, CentOS is supposed to be an Enterprise distribution (or at
> least a clone of one), but updates for something that's been out for about
> 6 months (5.1) won't be available?  Is this because the ``upstream'' isn't
> providing updates?

No, it is because 5.1 is not the distro .. centos-5 is.

5.0, 5.1, 5.2 are update sets for centos-5.

(much like service pack 2 or service pack 3 for WinXP to use a windows 
analogy)

You have CentOS-5, and it is updated to a certain level.  If you run 
yum, it will be updated to latest version .. just like if you do an 
update with RHEL, you will get all the latest packages.

So ... CentOS-5 was at one time 5.0, then 5.1 and now 5.2.

This is covered a massive amount of times every update set.

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