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RE: [Xen-users] Can someone please build a Xen 3.2 rpm for CentOS 5.1x64

To: "Nico Kadel-Garcia" <nkadel@xxxxxxxxx>
Subject: RE: [Xen-users] Can someone please build a Xen 3.2 rpm for CentOS 5.1x64?
From: "Ross S. W. Walker" <rwalker@xxxxxxxxxxxxx>
Date: Mon, 28 Apr 2008 09:43:33 -0400
Cc: Rudi Ahlers <Rudi@xxxxxxxxxxx>, xen-users <xen-users@xxxxxxxxxxxxxxxxxxx>, Marco Strullato <marco.strullato@xxxxxxxxx>
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Thread-topic: [Xen-users] Can someone please build a Xen 3.2 rpm for CentOS 5.1x64?
Nico Kadel-Garcia wrote:
> Ross S. W. Walker wrote:
> > Nico Kadel-Garcia wrote:
> >   
> >> Ross S. W. Walker wrote:
> >>     
> >>> Marco Strullato wrote:
> >>>   
> >>>       
> >>>> Hi, I followed you instructions, I've build and installed
> >>>> xen-3.2.0-0xs and xen-libs-3.2.0-0xs.
> >>>> Now I get this error when I execute xm list:
> >>>>
> >>>> Error: Unable to connect to xend: No such file or directory. 
> >>>> Is xend running?
> >>>>     
> >>>>         
> >>> This looks like you didn't change the grub.conf to specify
> >>> the Xen 3.2 hypervisor as opposed to the stock Xen 3.1
> >>> hypervisor that the RH/CentOS Xen kernels are set to use
> >>> by default.
> >>>
> >>>   
> >>>       
> >> Oh. Hmmph. RedHat uses some cuteness in current versions of 'grubby' and 
> >> RPM to auto-install the Xen kernels in grub.conf.  When I was working 
> >> with RHEL 4, it took some extra work to get them into grub.conf. But 
> >> RHEL 5 has it incorporated into their RPM's. You might take a look at 
> >> the RHEL versus Xensource SRPM's and look for the differences.
> >>
> >> I'd like the Xensource RPM's to do this automatically, as well.
> >>     
> >
> > Well actually, RH bundles the Xen hypervisor right with the Xen
> > kernel in EL5, so that's how they handle it.
> >
> > -Ross
> >   
> ??? Distributing it or not, the RHEL packages automatically 
> install the 
> grub.conf entries, using 'grubby'. At last look, the Xen kernels 
> compiled from SRPM or provided as binaries did not, and took extra 
> manual steps to configure. Does the most recent version 
> address this yet?

Ok, yes, grubby can now handle extended boot parameters, but because
now that RH bundles the hypervisor with the xen kernel the whole
point is for not, because at the next kernel update the 3.2
hypervisor will be removed and the 3.1 hypervisor inserted, which
means you will need to go in by hand and modify it anyways, so
you might as well get use to it from the start.


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