RE: [Xen-users] Booting past GRUB (RHEL4)

["Petersson, Mats" <Mats.Petersson@xxxxxxx>]

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of 
> Yoav Felberbaum
> Sent: 05 September 2006 18:50
> To: Ivan Porro
> Cc: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-users] Booting past GRUB (RHEL4)
> 
> 
> On 5 Sep 2006, at 08:22, Ivan Porro wrote:
> 
> > Yoav Felberbaum wrote:
> >>
> >> Well, I'm running with a 3ware RAID controller but from what I  
> >> understand, this SHOULD only be an issue at a later stage of  
> >> booting... How do I find out which drivers comes compiled into  
> >> Xen? Have had no joy in finding a full list :(
> >>
> > Yes.. it should. It should happen a Kernel panic after a "no root  
> > device found" if the controller is in charge of the problem.
> > However, if you want you can look at   config-<kernel version> and  
> > inside you'll find several string, i.e. CONFIG_SMP=Y
> >
> > If they are =Y the driver is compiled in. If they're =M they're  
> > compiled as module and should be present in initrd if required for  
> > boot (chipset, controllers...) and if they're IS NOT SET and  
> > commented out with # they are not present anyway in your kernel
> >
> > I can't help you anymore, sorry!
> 
> No, it's  ok, I found the issue, but now I have a new problem :P
> 
> Basically, the situation  is I  am using IPMI to access this  remote  
> machine over Serial-over-LAN during the early booting stage. When   
> the other kernels loaded, they echo to  the serial console with no  
> problem.
> 
> BUT the xen kernel doesn't - when the kernel loads, IPMI goes 
> "dead".  
> I've been over & over the documentation &  can't work out why 
> this is  
> so. This is why I THOUGHT the xen kernel was buggy.
> 
> The relevant lines are...
> ---
> default 1
> timeout=80
> #splashimage=(hd0,0)/grub/splash.xpm.gz
> #hiddenmenu
> serial --unit=1 --speed=19200 --word=8 --parity=no --stop=1
> terminal --timeout=80 console serial
> ...
> title Red Hat Enterprise Linux ES (2.6.9-42.0.2.ELsmp)
>          root (hd0,0)
>          kernel /vmlinuz-2.6.9-42.0.2.ELsmp ro root=LABEL=/  
> console=tty0 console=ttyS1,19200n8
>          initrd /initrd-2.6.9-42.0.2.ELsmp.img
> title Xen 3.0 / XenLinux 2.6
>          root (hd0,0)
>          kernel /xen-3.0.gz dom0_mem=192M com1=19200,8n1

Add "console=com1" may help here - no guarantees, but I think it should
work. 

--
Mats



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