Mailing List Archive: xen and hardware

xen and hardware

Apr 11, 2005, 6:59 AM

Post #1 of 6 (1916 views)

Hi

I've installed xen on fedora, however whenever I boot up the xem host,
kudzu complains that, the ethernet, usb and mouse have been removed. Is
there a reason as to why I lose all these?

Many Thanks
Shaz

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Re: xen and hardware [ In reply to ]

maw48 at cl

Apr 11, 2005, 6:52 AM

Post #2 of 6 (1897 views)

Permalink

> I've installed xen on fedora, however whenever I boot up the xem host,
> kudzu complains that, the ethernet, usb and mouse have been removed. Is
> there a reason as to why I lose all these?

You need to compile the drivers for these devices into your dom0 kernel.
There's a selection of devices enabled by default but it's sometimes still
necessary to customise the configuration for specific hardware.

Do a "make ARCH=xen menuconfig" (or xconfig or gconfig) in your xen0 kernel
tree and enable the drivers for your devices, then rebuild.

HTH,
Mark

> Many Thanks
> Shaz
>
>
>
> Chase de Vere Financial Solutions plc operates under the trading names of
> Chase de Vere Private Clients, Chase de Vere Employee Benefits and
> Moneyextra. Chase de Vere Financial Solutions plc is an independent
> financial adviser and is authorised and regulated by the Financial Services
> Authority.
>
> Registered Office: 1 King Street, Manchester M2 6AW. Registered in England
> No: 1723284 VAT No: 503 374571 A wholly owned subsidiary of AWD Group plc.
> AWD Group plc is a member of AWD Holding AG, Europe's premier independent
> financial services group.
>
>
> ***************************************************************************
> This message is intended for the named recipient only and is confidential
> and no other person can place any reliance upon it.
>
> The recipient acknowledges that transmissions made via the Internet can be
> corrupted and therefore Chase de Vere Financial Solutions plc does not give
> any warranty as to the quality or accuracy of any information contained in
> this message or assumes any liability for it or for its transmission,
> reception or storage.
>
> This footnote also confirms that this e-mail message has been swept for the
> presence of computer viruses.
>
> Chase de Vere Financial Solutions plc is authorised and regulated by the
> Financial Services Authority and is an independent financial adviser
> ***************************************************************************
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users

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Re: xen and hardware [ In reply to ]

riel at redhat

Apr 11, 2005, 7:21 PM

Post #3 of 6 (1902 views)

Permalink

On Mon, 11 Apr 2005, Mark Williamson wrote:

> > I've installed xen on fedora, however whenever I boot up the xem host,
> > kudzu complains that, the ethernet, usb and mouse have been removed. Is
> > there a reason as to why I lose all these?
>
> You need to compile the drivers for these devices into your dom0 kernel.

Shahzad,

are you using the FC4 test 2 xen and kernel-xen* RPMs, or
are you trying to roll your own ?

--
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan

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Xen and hardware [ In reply to ]

shahzad.chohan at gmail

Apr 18, 2005, 8:53 AM

Post #4 of 6 (1899 views)

Permalink

Hi

Could any please help me understand why a domain can't see the
underlying hardware.

Basically I've installed a couple of fedora install from a cd in to a
partition, then used the install as xen domain. Each time they boot up
kudzu complains of losing the hardware. If I accept "remove
configuration" then I end up losing my network connection. Any ideas ?

Many Thanks
Shahzad

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Re: Xen and hardware [ In reply to ]

xen-users at nils

Apr 18, 2005, 9:25 AM

Post #5 of 6 (1896 views)

Permalink

Am Montag, den 18.04.2005, 16:53 +0100 schrieb Shahzad Chohan:
> Could any please help me understand why a domain can't see the
> underlying hardware.

Because if every domain could use all hardware directly you would end up
in a big mess (imagine playing mpeg in all domains ;), so they have
virtual partitions and virtual NICs which look different than the real
hardware.

> Basically I've installed a couple of fedora install from a cd in to a
> partition, then used the install as xen domain. Each time they boot up
> kudzu complains of losing the hardware. If I accept "remove
> configuration" then I end up losing my network connection. Any ideas ?

Stop using kudzu within a domU:

chkconfig kudzu off

If you want to use the same partition natively (=not as domU) with
kudzu, you could define different runlevels (say 4=within domU,
5=native), delete kudzu from runlevel 4 (chkconfig --level 4 kudzu off)
and tell xen to boot the domU into runlevel 4 (extra+=" 4").

Learn to configure fedore networking by hand. RH9 manual is still valid:

<http://www.redhat.com/docs/manuals/linux/RHL-9-Manual/ref-guide/ch-
networkscripts.html>

/nils.

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Xen and hardware [ In reply to ]

shahzad.chohan at gmail

Apr 19, 2005, 6:40 AM

Post #6 of 6 (1905 views)

Permalink

Hi,

Basically I'd like to know the different ways to install a xen domain
beause currently I have to reboot the host everytime to install say
fedora.

This seems to be problem, especially if there's a couple of domains
running. Any further ideas?

Many Thanks
Shaz

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