[Xen-devel] Re: Starting VMs if not installed to /

[Oliver Tschaeche <Oliver.Tschaeche@xxxxxxxxxxxxxxxxxxxxxxxxxx>]

Hi,

the problem was, that the tools in /opt/xen-3.0.2/usr/lib/xen/bin
were not found. A link in /usr/lib/xen -> /opt/xen-3.0.2/usr/lib/xen
solves the problem.

It would be nice, if ./install.sh <directory> would adjust the
paths and libs automatically when installing the files.

Thank you for working on XEN :-)

        Olli

On Fri, Aug 11, 2006 at 01:45:00PM +0200, Oliver Tschaeche wrote:
> Hi,
> 
> i try to run XEN which is not installed to / but /opt/xen-3.0.2.
> I already tried installing XEN to / - works perfectly in my environment.
> 
> So, here the steps i made when installing xen to /opt/xen-3.0.2:
> 
> 
> 1. compiled XEN-3.0.2 with my xen0 and xenU kernels
> 
> 2. installed a Debian Sarge installation on a host named faui31c
>       (with bridge-utils and iproute)
> 
> 3. installed the XEN compiled files on faui31c by using:
> 
> faui31c:/tmp/dist# ./install.sh /opt/xen-3.0.2
> Installing Xen from './install' to '/opt/xen-3.0.2'...
>  - installing for hotplug-based system
>  - modifying permissions
> All done.
> Checking to see whether prerequisite tools are installed...
> Xen CHECK-INSTALL  Fri Aug 11 11:10:33 CEST 2006
> Checking check_brctl: OK
> Checking check_hotplug: OK
> Checking check_iproute: OK
> Checking check_python: OK
> Checking check_zlib_lib: OK
> All done.
> faui31c:/tmp/dist# mv /lib/tls /lib/tls.disabled
> faui31c:/tmp/dist#
> 
> 4. installed the links in /boot, modified boot-loader
>       according to the README file in dist
> 
> 5. reboot (XEN starts the domain0 perfectly)
> 
> 6a. added the following environment variables:
> 
>       $ export LD_LIBRARY_PATH=/opt/xen-3.0.2/usr/lib
>       $ export PYTHONPATH=/opt/xen-3.0.2/usr/lib/python
>       $ export PATH=$PATH:/opt/xen-3.0.2/usr/bin:/opt/xen-3.0.2/usr/sbin
> 
> 6b. copied the contents /tmp/dist/install/etc to /etc
> 
> 6c. copied the contents /tmp/dist/install/var to /var
> 
> 7. started xend - looks good:
> 
> faui31c:~# /etc/init.d/xend start
> faui31c:~# xm list
> Name                              ID Mem(MiB) VCPUs State  Time(s)
> Domain-0                           0      939     1 r-----    13.4
> faui31c:~#
> 
> 
> 8. added the environment variables to 
> /opt/xen-3.0.2/etc/scripts/xen-hotplug-common.sh:
> 
>       $ export LD_LIBRARY_PATH=/opt/xen-3.0.2/usr/lib
>       $ export PYTHONPATH=/opt/xen-3.0.2/usr/lib/python
>       $ export PATH=$PATH:/opt/xen-3.0.2/usr/bin:/opt/xen-3.0.2/usr/sbin
> 
> 9. trying to start the (modified: kernel path and hd) example domain:
> 
> faui31c:~# xm create -c xmexample1
> Using config file "/etc/xen/xmexample1".
> Started domain ED
> Unexpected error: exceptions.OSError
> 
> Please report to xen-devel@xxxxxxxxxxxxxxxxxxx
> Traceback (most recent call last):
>   File "/opt/xen-3.0.2/usr/sbin/xm", line 10, in ?
>     main.main(sys.argv)
>   File
> "/export/home.local/ortschae/xen-3.0.2/dist/install/usr/lib/python/xen/xm/main.py",
> line 1075, in main
>   File "<string>", line 1, in <lambda>
>   File
> "/export/home.local/ortschae/xen-3.0.2/dist/install/usr/lib/python/xen/xm/main.py",
> line 534, in xm_subcommand
>   File
> "/export/home.local/ortschae/xen-3.0.2/dist/install/usr/lib/python/xen/xm/create.py",
> line 907, in main
>   File
> "/export/home.local/ortschae/xen-3.0.2/dist/install/usr/lib/python/xen/xm/console.py",
> line 26, in execConsole
>   File
> "/export/home.local/ortschae/xen-3.0.2/dist/install/usr/lib/python/xen/util/auxbin.py",
> line 36, in execute
> OSError: [Errno 2] No such file or directory
> 
> 10. but the list command shows that the User Domain is running:
> 
> faui31c:~# xm list
> Name                              ID Mem(MiB) VCPUs State  Time(s)
> Domain-0                           0      937     1 r-----    14.4
> ED                                 1       64     1 ------    13.5
> faui31c:~#
> 
> 11. connect to the console
> 
> faui31c:~# xm console 2
> Unexpected error: exceptions.OSError
> 
> Please report to xen-devel@xxxxxxxxxxxxxxxxxxx
> Traceback (most recent call last):
>   File "/opt/xen-3.0.2/usr/sbin/xm", line 10, in ?
>     main.main(sys.argv)
>   File
> "/export/home.local/ortschae/xen-3.0.2/dist/install/usr/lib/python/xen/xm/main.py",
> line 1075, in main
>   File
> "/export/home.local/ortschae/xen-3.0.2/dist/install/usr/lib/python/xen/xm/main.py",
> line 713, in xm_console
>   File
> "/export/home.local/ortschae/xen-3.0.2/dist/install/usr/lib/python/xen/xm/console.py",
> line 26, in execConsole
>   File
> "/export/home.local/ortschae/xen-3.0.2/dist/install/usr/lib/python/xen/util/auxbin.py",
> line 36, in execute
> OSError: [Errno 2] No such file or directory
> 
> 
> Hmm, looks like we can't connect to the console. Maybe a socket is
> missing?
> 
> Thanks for your help,
> 
>       Olli
> 
> -- 
> Dr.-Ing. Oliver Tschaeche         email:  tschaeche@xxxxxxxxxxxxxxxxxxxxxxxxxx
> University of Erlangen-Nuremberg  Phone +49 9131 85-27612, Fax +49 9131 
> 85-27239
> Department of Computer Science, IMMD III, Martensstr. 3, 91058 Erlangen, 
> Germany
> http://www3.informatik.uni-erlangen.de/Staff/ortschae/ortschae.html

-- 
Dr.-Ing. Oliver Tschaeche         email:  tschaeche@xxxxxxxxxxxxxxxxxxxxxxxxxx
University of Erlangen-Nuremberg  Phone +49 9131 85-27612, Fax +49 9131 85-27239
Department of Computer Science, IMMD III, Martensstr. 3, 91058 Erlangen, Germany
http://www3.informatik.uni-erlangen.de/Staff/ortschae/ortschae.html

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