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[Xen-users] xen + centos + areca raid issues

To: "Xen Users" <Xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-users] xen + centos + areca raid issues
From: "Anand Gupta" <xen.mails@xxxxxxxxx>
Date: Tue, 16 Oct 2007 17:07:09 +0530
Delivery-date: Tue, 16 Oct 2007 04:38:26 -0700
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I am trying to run a new server with centos + xen using centos xen packages.

After installation, we had to install a hardware raid card (areca) on the machine, and thus reload the os. It so happens the drivers shipped aren't compatible with xen kernel, so i was forced to compile xen from source to compile areca drivers.

Now with system running under compiled xen, i cannot boot my old domU image :(

Here is the error i get

xm create aaa
Using config file "./aaa".
Error: (22, 'Invalid argument')

Here is the config file

# Automatically generated xen config file
name = "aaa"
memory = "2048"
disk = [ 'tap:aio:/home/xen/aaa,xvda,w', ]
vif = [ 'mac=00:16:3e:12:34:a9, bridge=xenbr0', ]
vfb = ["type=vnc,vncunused=1"]
uuid = "bee5f62b-7193-a454-e37e-a151a5be8f44"

Also the Virtual Machine Manager under centos has stopped working. Does this mean i need to recreate these domU's ? Really confused here on how to go about it since the old domU has a lot of data in it, which is required and now the machine is down :(

P.S. : Is there a way to compile the areca drivers under the centos xen kernel ? I see the only kernel-xen source is available is under centosplus repository called kernel-xen-devel-2.6.18-8.1.14.el5.centos.plus. I don't see any targets in the areca driver Makefile even, so don't know how it will be compiled as well :(

Any help on this will be really appreciated.


Anand Gupta
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