[Xen-users] Re: Xen boot error

[Luke Crawford <lsc@xxxxxxxxx>]

(reposted to xen-users, as xen-users is the appropriate forum for this 
level of question.)

On Thu, 30 Nov 2006, Surisetty, Pradeep Kumar wrote:
> Hello
>
> iam trying to build Xen.
>
> I downloaded xen unstable tar ball and compiled it. I used mk_initrd and 
> created the initird. I booted my newly built Xen but booting stops with the 
> following messages and keyboard doesn't work. Can you give me pointers to 
> solving this?
do you mean mkinitrd?  please post the mkinitrd line  also post your grub 
lines
> waiting for device /dev/sda7 to appear............not found
> exiting to /bin/sh
> $
What kind of disk are you using?  SCSI?  are you attempting to boot from 
/dev/sda7?
Most likely the problem is that you did not include the drivers for your 
disks in the kernel or initrd.  mkinitrd --with=modulename  where 
modulename is the module for your disk, I believe, is one way to solve the 
problem.  Another is to re-compile your kernel with CONFIG_MODULE=Y (* in 
menuconfig)
(oftentimes I find it is easier to troubleshoot these sorts of errors w/ a 
serial console... if you could paste the boot messages, finding your 
problem would be trivial-  with the information you are giving me, I'm 
largely guessing.)

also, you should mention what distro/version you are using.  RHEL/CentOS 
doesn't like to boot at all without an initrd, whereas on debian or 
slackware, I usually just compile everything I need to boot into the 
kernel and run without initrd.
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