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    |   xen-users
[Xen-users] Re: Xen boot error 
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(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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