Re: -xen config...

[Anthony Liguori <aliguori@us.ibm.com>]

Ian Pratt wrote:

>>Is there any reason that ext2 is set as 'y' while ext3 is set 
>>as 'm'? It seems to me that they (and the other 'common' 
>>filesystems) should be the same...
>>    
>>
>
>I agree this is pretty odd. The -xen config was based on one for a
>distro kernel, so I think it's standard practice. 
>
>Can anyone put forward a good reason not to compile ext3 in?
>  
>
I don't know that it matters, but for what it's worth, this shouldn't 
create problems.

ext3 is (almost) backwards compatible with ext2.  ext2 is suffient to 
mount the root device such that modules can be loaded (and then the root 
filesystem is actually mounted).

If you watch an Ubuntu boot-up, you'll notice that modules are loaded 
before the root file system is mounted as ext2.

This is not likely to be the reason you're seeing filesystem corruption 
as if there are any problems with the ext3 filesystem, the ext2 driver 
will refuse to mount it (complaining that it contains "unsupported 
features").

Can you ellaborate on the filesystem corruption problems you have been 
seeing?  xm destroy (as opposed to xm shutdown) is an easy way to 
corrupt yourself.

Regards,

Anthony

>Ian 
>
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