[Pkg-xen-devel] Pygrub problem

[Paul van der Vlis]

Hello,

I would like to use the kernel in the domU, so that a user can install
it's own kernel. While starting the domU with pygrub I get the following
error: "Error: Boot loader didn't return any data!"

This is the configfile of the domU:
--------------
#
# Configuration file for the Xen instance lenny.vandervlis.nl, created
# by xen-tools 3.9 on Sun Oct 19 15:46:03 2008.
#

#
#  Kernel + memory size

# kernel      = '/boot/vmlinuz-2.6.26-1-xen-amd64'
# ramdisk     = '/boot/initrd.img-2.6.26-1-xen-amd64'
memory      = '128'

#
#  Disk device(s).
#
root        = '/dev/sda2 ro'
disk        = [
                  'phy:/dev/volume0/lenny.vandervlis.nl-swap,sda1,w',
                  'phy:/dev/volume0/lenny.vandervlis.nl-disk,sda2,w',
              ]

#
#  Hostname
#
name        = 'lenny.vandervlis.nl'

#
#  Networking
#
vif         = [ 'ip=91.198.178.30,mac=00:16:3E:E9:A1:DD' ]

#
#  Behaviour
#
on_poweroff = 'destroy'
on_reboot   = 'restart'
on_crash    = 'restart'

extra = "console=xvc0 xencons=xvc0"
bootloader="/usr/lib/xen-3.2-1/bin/pygrub"
----------------

When I look into the xend-log I see this:
-------------
[2008-11-26 13:51:31 2705] DEBUG (XendDomainInfo:84)
XendDomainInfo.create(['vm', ['name', 'lenny.vandervlis.nl'], ['memory',
'128'], ['on_poweroff', 'destroy'], ['on_reboot', 'restart'],
['on_crash', 'restart'], ['vcpus', 1], ['on_xend_start', 'ignore'],
['on_xend_stop', 'ignore'], ['bootloader',
'/usr/lib/xen-3.2-1/bin/pygrub'], ['bootloader_args', '-q'], ['image',
['linux', ['root', '/dev/sda2 ro'], ['args', 'console=xvc0
xencons=xvc0']]], ['device', ['vbd', ['uname',
'phy:/dev/volume0/lenny.vandervlis.nl-swap'], ['dev', 'sda1'], ['mode',
'w']]], ['device', ['vbd', ['uname',
'phy:/dev/volume0/lenny.vandervlis.nl-disk'], ['dev', 'sda2'], ['mode',
'w']]], ['device', ['vif', ['ip', '91.198.178.30'], ['mac',
'00:16:3E:E9:A1:DD']]]])
[2008-11-26 13:51:31 2705] DEBUG (XendDomainInfo:1618)
XendDomainInfo.constructDomain
[2008-11-26 13:51:31 2705] DEBUG (balloon:132) Balloon: 131884 KiB free;
need 2048; done.
[2008-11-26 13:51:31 2705] DEBUG (XendDomain:443) Adding Domain: 15
[2008-11-26 13:51:31 2705] DEBUG (XendDomainInfo:1703)
XendDomainInfo.initDomain: 15 256
[2008-11-26 13:51:31 2579] DEBUG (XendBootloader:100) Launching
bootloader as ['/usr/lib/xen-3.2-1/bin/pygrub', '--args=root=/dev/sda2
ro console=xvc0 xencons=xvc0',
'--output=/var/run/xend/boot/xenbl.21780', '-q',
'/dev/volume0/lenny.vandervlis.nl-swap'].
[2008-11-26 13:51:31 2705] ERROR (XendBootloader:171) Boot loader didn't
return any data!
[2008-11-26 13:51:31 2705] ERROR (XendDomainInfo:440) VM start failed
Traceback (most recent call last):
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendDomainInfo.py", line
420, in start
    XendTask.log_progress(31, 60, self._initDomain)
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendTask.py", line 209,
in log_progress
    retval = func(*args, **kwds)
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendDomainInfo.py", line
1705, in _initDomain
    self._configureBootloader()
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendDomainInfo.py", line
2064, in _configureBootloader
    bootloader_args, kernel, ramdisk, args)
  File "/usr/lib/xen-3.2-1/lib/python/xen/xend/XendBootloader.py", line
172, in bootloader
    raise VmError, msg
VmError: Boot loader didn't return any data!
------------

What will be wrong?  I think the bootloader is launched wrong, but why?

In the domU I have a kernel, initrd, menu.lst and device.map.

With regards,
Paul van der Vlis.




-- 
http://www.vandervlis.nl/