Re: [Xen-users] Best Distro for Xen, Software Raid and LVM

[Patrick Wolfe <pwolfe@xxxxxxxxxxxxxx>]

Tony Hernandez wrote:
 > I've tried Ubuntu (Breezy and Dapper) and CentOs 4.3.  I wasn't 
satisfied
> with either.  When I installed Dom0, I configured the drives for software
> raid and lvm.  Then after downloading the Xen source, building and
> installing it, I couldn't get the Xen kernel to boot.  The difficulty was
> only componded by both distros installing LILO.
>
> Any insight into this area would be appreciated.
I've used Xen 3.0.0 thru 3.0.2 on Ubuntu Breezy/Dapper and CentOS 
4.2/4.3, and had zero problems with Xen, grub, raid and LVM on any of 
them.  Both of these OS's use GRUB by default, not LILO.  I don't even 
know *HOW* to get them to use LILO instead (who would want to?).
As far as LVM and RAID go, I use LVM on every Linux system I have.  I 
refuse to try to manage disk space without it anymore.  My home server 
uses software raid level 1 on two disks, and I have LVM running on top 
of that, with zero effect on Xen or any other software.  All of that 
system's filesystems are located within the raid/LVM volume groups, with 
the lone exception is the /boot partition, which I always make a 
separate primary partition with EXT3 filesystem.
As far as backing up the /boot partition, having a second copy on a 
second disk, just in case, isn't a difficult thing to maintain.  As long 
as it's an active partition, if the first disk totally dies, it's copy 
of /boot ought to be visible, if needed.  I haven't actually proved it 
in the real world, since, knock on wood, none of my hard drives have 
actually failed.
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