Xen users - Jun 2008 - domUs doesn''t boot after upgrade to xen 3.2

Hi all, after upgrading from xen 3.0 to xen 3.2 I cannot start my
domUs: I get: VmError: Boot loader didn''t return any data!

Suggestions?

This is the log

[2008-06-25 11:24:53 2755] DEBUG (XendDomainInfo:84)
XendDomainInfo.create([''vm'', [''name'',
''engtest3.infolan''], [''memory'',
''2048''], [''on_reboot'',
''restart''], [''on_crash'',
''restart''], [''vcpus'',
2], [''on_xend_start'', ''ignore''],
[''on_xend_s
top'', ''ignore''], [''uuid'',
''a2dae8f8-9433-0132-a87b-677b0b18515f''],
[''bootloader'', ''/usr/bin/pygrub''],
[''bootloader_args'', ''''],
[''image'',
[''linux'']], [''device'',
[''vbd'', [''uname'',
''phy:/dev/HYP02VM/ENGTEST3''],
[''dev'', ''xvda''], [''mode'',
''w''
]]], [''device'', [''vbd'',
[''uname'',
''phy:/dev/HYP02VM/ENGTEST3_DISK01''],
[''dev'', ''xvdb''], [''mode'',
''w'']]], [''device'', [''vif'',
[''bridge'',
''eth0''], [''mac'',
''00:16:3e:30:c1:19'']]]])
[2008-06-25 11:24:53 2755] DEBUG (XendDomainInfo:1608)
XendDomainInfo.constructDomain
[2008-06-25 11:24:53 2755] DEBUG (balloon:132) Balloon: 131072 KiB
free; need 2048; done.
[2008-06-25 11:24:53 2755] DEBUG (XendDomain:443) Adding Domain: 2
[2008-06-25 11:24:53 2755] DEBUG (XendDomainInfo:1692)
XendDomainInfo.initDomain: 2 256
[2008-06-25 11:24:53 3421] DEBUG (XendBootloader:100) Launching
bootloader as [''/usr/bin/pygrub'',
''--output=/var/run/xend/boot/xenbl.20268'',
''/dev/HYP02VM/ENGTEST3''].
[2008-06-25 11:24:53 2755] ERROR (XendBootloader:171) Boot loader
didn''t return any data!
[2008-06-25 11:24:53 2755] ERROR (XendDomainInfo:440) VM start failed
Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 420, in start
    XendTask.log_progress(31, 60, self._initDomain)
  File "/usr/lib/python2.4/site-packages/xen/xend/XendTask.py", line
209, in log_progress
    retval = func(*args, **kwds)
  File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 1694, in _initDomain
    self._configureBootloader()
  File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 2050, in _configureBootloader
    bootloader_args, kernel, ramdisk, args)
  File "/usr/lib/python2.4/site-packages/xen/xend/XendBootloader.py",
line 172, in bootloader
    raise VmError, msg
VmError: Boot loader didn''t return any data!
[2008-06-25 11:24:53 2755] DEBUG (XendDomainInfo:1883)
XendDomainInfo.destroy: domid=2
[2008-06-25 11:24:53 2755] DEBUG (XendDomainInfo:1900)
XendDomainInfo.destroyDomain(2)
[2008-06-25 11:24:53 2755] DEBUG (XendDomainInfo:1524) No device model
[2008-06-25 11:24:53 2755] DEBUG (XendDomainInfo:1526) Releasing devices
[2008-06-25 11:24:53 2755] ERROR (XendDomainInfo:89) Domain construction failed
Traceback (most recent call last):
  File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 87, in create
    vm.start()
  File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 420, in start
    XendTask.log_progress(31, 60, self._initDomain)
  File "/usr/lib/python2.4/site-packages/xen/xend/XendTask.py", line
209, in log_progress
    retval = func(*args, **kwds)
  File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 1694, in _initDomain
    self._configureBootloader()
  File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
line 2050, in _configureBootloader
    bootloader_args, kernel, ramdisk, args)
  File "/usr/lib/python2.4/site-packages/xen/xend/XendBootloader.py",
line 172, in bootloader
    raise VmError, msg
VmError: Boot loader didn''t return any data!
[2008-06-25 11:24:53 2755] DEBUG (XendDomainInfo:1883)
XendDomainInfo.destroy: domid=None
[2008-06-25 11:24:53 2755] DEBUG (XendDomainInfo:1900)
XendDomainInfo.destroyDomain(None)
[2008-06-25 11:24:53 2755] DEBUG (XendDomainInfo:1524) No device model
[2008-06-25 11:24:53 2755] DEBUG (XendDomainInfo:1526) Releasing devices



Thanks

Marco Strullato

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