Description of problem:

I hit an error right after install of 6.2 Xen guest completed. The guest included all packages available in the tree. The error from virt-manager is this:

DEBUG (error:76) Uncaught Error: Error starting domain: грешка при POST операция: xend_post: error from xen daemon: (xend.err 'Error creating domain: (2, \'Invalid kernel\', "elf_xen_note_check: ERROR: Not a Xen-ELF image: No ELF notes or \'__xen_guest\' section found.\\n")') : Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/engine.py", line 501, in run_domain
    vm.startup()
  File "/usr/share/virt-manager/virtManager/domain.py", line 576, in startup
    self.vm.create()
  File "/usr/lib64/python2.4/site-packages/libvirt.py", line 333, in create
    if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)
libvirtError: грешка при POST операция: xend_post: error from xen daemon: (xend.err 'Error creating domain: (2, \'Invalid kernel\', "elf_xen_note_check: ERROR: Not a Xen-ELF image: No ELF notes or \'__xen_guest\' section found.\\n")')


In an everything package set install tboot is installed and I believe it is causing the problem.

Version-Release number of selected component (if applicable):
host: 
RHEL 5.7, x86_64

guest: 
RHEL6.2-20110907.1
kernel-2.6.32-195.el6
tboot-1.5.0-0.1.20110714.el6

How reproducible:


Steps to Reproduce:
1. Using RHEL 5.7 Xen dom0 initiate install of latest RHEL 6.2 tree as PV guest
2. Use kickstart with
%packages
*
-@conflicts-server

3. Complete the install and reboot
  
Actual results:
Guest doesn't start

Expected results:
Guest starts

Additional info:
@everything package set installs and boots fine under KVM.

grub.conf from the guest looks like:

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd0,0)
#          kernel /vmlinuz-version ro root=/dev/mapper/vg_test100-lv_root
#          initrd /initrd-[generic-]version.img
#boot=/dev/xvda
default=0
timeout=5
splashimage=(hd0,0)/grub/splash.xpm.gz
hiddenmenu
title Red Hat Enterprise Linux (2.6.32-195.el6.x86_64)
	root (hd0,0)
	kernel /tboot.gz logging=vga.serial,memory
	module /vmlinuz-2.6.32-195.el6.x86_64 ro root=/dev/mapper/vg_test100-lv_root intel_iommu=on rd_NO_LUKS LANG=en_US.UTF-8 rd_NO_MD quiet SYSFONT=latarcyrheb-sun16 rhgb crashkernel=auto rd_LVM_LV=vg_test100/lv_swap  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rd_LVM_LV=vg_test100/lv_root
	module /initramfs-2.6.32-195.el6.x86_64.img
title Red Hat Enterprise Linux-debug (2.6.32-195.el6.x86_64.debug)
	root (hd0,0)
	kernel /tboot.gz logging=vga.serial,memory
	module /vmlinuz-2.6.32-195.el6.x86_64.debug ro root=/dev/mapper/vg_test100-lv_root intel_iommu=on rd_NO_LUKS LANG=en_US.UTF-8 rd_NO_MD quiet SYSFONT=latarcyrheb-sun16 rhgb crashkernel=auto rd_LVM_LV=vg_test100/lv_swap  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rd_LVM_LV=vg_test100/lv_root
	module /initramfs-2.6.32-195.el6.x86_64.debug.img


Changing it to disable tboot allowed me to boot fine:

title Red Hat Enterprise Linux (2.6.32-195.el6.x86_64)
	root (hd0,0)
	kernel /vmlinuz-2.6.32-195.el6.x86_64 ro root=/dev/mapper/vg_test100-lv_root intel_iommu=on rd_NO_LUKS LANG=en_US.UTF-8 rd_NO_MD quiet SYSFONT=latarcyrheb-sun16 rhgb crashkernel=auto rd_LVM_LV=vg_test100/lv_swap  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rd_LVM_LV=vg_test100/lv_root
	initrd /initramfs-2.6.32-195.el6.x86_64.img