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

[Yoav Felberbaum <mailinglists@xxxxxxxxxx>]

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
        module /vmlinuz-2.6.16-xen ro root=LABEL=/ console=tty0  
console=ttyS1,19200n8
        module /initrd-2.6-xen.img
---
The Red Hat linux works with serial-over-LAN, but I can't get xen  
working with SOL :(
Any  ideas?

Y.

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