[Fedora-xen] problems with rhel4(clone) as DomainU on FC6 Xen host

[Jeroen Beerstra]

hi again,

Op donderdag 4 januari 2007 04:13, schreef Jeroen Beerstra:
> hi there,
>
<big cut!>

Just to make sure nobody is wasting time on this ... so far you haven't but 
one never knows ;) or just to help out somebody with similar problems.

I have given up and grabbed myself an X/OS 4 x86_64 iso and guess what it just 
worked (tm)! 

Actually that is a bit oversimplified, since RHEL4 (and clones) is not XEN 
enabled by default  so it did required some manual labour, but basicly this 
time following the guidelines from 
http://people.redhat.com/riel/RHEL4-Xen-HOWTO produced a working xen guest.

The problem was with the initrd:

- an initrd created on i386 RHEL4 for the x86_64 RHEL4 kernel doesn't has any 
modules in it, hence (?) it doesn't boot at all.
- an initrd created on a FC6 guest is incompatible with RHEL4 (nash consumes 
100% CPU and the correct devices for lvm are not created so the system 
doesn't boot) 
- finally an initrd created on the RHEL4 x86_64 guest (booted with qemu) for 
the x86_64 RHEL4 kernel did work.

So you need a working x86_64 RHEL4 (clone) setup to be able to build a working 
initrd for the RHEL4 x86_64 xen kernels. This then does boot i386 RHEL4, but 
why bother :D

However pygrub still doesn't work, same problem as before :( I was kindoff 
hoping there was some problem with x86_64 versus i386, but apparently that 
isn't it either ... anybody any ideas why pygrub is baling out with 'Error: 
invalid literal for int(): gh'?? 
http://people.redhat.com/riel/RHEL4-Xen-HOWTO suggests pygrub should work 
with RHEL4 guests.

>
> And then there is pygrub, with the FC6 guest created by virt-manager this
> works like a charm, however with the X/OS guest it just won't work:
>
> # xm create -c VirtualXOS4
> Using config file "VirtualXOS4".
> Going to boot X/OS Linux (2.6.9-42.36.ELxenU)
>   kernel: /vmlinuz-2.6.9-42.36.ELxenU
>   initrd: /initrd-2.6.9-42.36.ELxenU.img
> Error: invalid literal for int(): gh
>
> I even tried copying over the grub installation from the FC6 x86_64 guest,
> but the problem remains. Anybody has any idea why pygrub is failing:
>
> Traceback (most recent call last):
>   File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py",
> line 194, in create
>     vm.construct()
>   File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py",
> line 1257, in construct
>     handle = uuid.fromString(self.info['uuid']))
>   File "/usr/lib64/python2.4/site-packages/xen/xend/uuid.py", line 67, in
> fromString
>     return [ int(s[i : i + 2], 16) for i in range(0, 32, 2) ]
> ValueError: invalid literal for int(): gh
> [2007-01-04 03:47:06 xend.XendDomainInfo 3323] DEBUG (XendDomainInfo:1449)
> XendDomainInfo.destroy: domid=None
> [2007-01-04 03:47:06 xend 3323] ERROR (xmlrpclib2:184) invalid literal for
> int(): gh
> Traceback (most recent call last):
>   File "/usr/lib64/python2.4/site-packages/xen/util/xmlrpclib2.py", line
> 162, in _marshaled_dispatch
>     response = self._dispatch(method, params)
>   File "/usr/lib64/python2.4/SimpleXMLRPCServer.py", line 406, in _dispatch
>     return func(*params)
>   File
> "/usr/lib64/python2.4/site-packages/xen/xend/server/XMLRPCServer.py", line
> 64, in domain_create
>     info = XendDomain.instance().domain_create(config)
>   File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomain.py", line
> 228, in domain_create
>     dominfo = XendDomainInfo.create(config)
>   File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py",
> line 194, in create
>     vm.construct()
>   File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py",
> line 1257, in construct
>     handle = uuid.fromString(self.info['uuid']))
>   File "/usr/lib64/python2.4/site-packages/xen/xend/uuid.py", line 67, in
> fromString
>     return [ int(s[i : i + 2], 16) for i in range(0, 32, 2) ]
> ValueError: invalid literal for int(): gh

-- 
Jeroen Beerstra