Problems running xp guest
by Falk Zimmermann
Hi,
I'm running FC7 on an x86_64 with the 2.6.20-2925.13.fc7xen kernel and
used virt-manager to configure an F7 and xp guest domain. Whereas I can
correctly run the F7 guest, I receive the following message after trying
to run the xp guest:
(xend.err 'Disk image does not exist: ')
Both images reside in the same directory (/var/lib/xen/images) and I
have selinux disabled.
Any ideas?
Thanks,
Falk
16 years, 8 months
Assistance with Xen 3.1
by Sonny Sarai
Hello,
I have Xen server 3.1 running. We installed this into our network before
I was hired. We also had a Nat'd IP. The ip address of the base system
was the public IP. Due to changing business requirements we needed more
IPs. Our ISP gave us a block. I had to change the IP structure for the
whole company.
I had to change the IP's of the guest VM's (virtual machine) on Xen. The
challenge is this. I cannot change the IP of the Xen base system so I
can use the xenserver-client to create new vm and add new ones. It seems
it is bridged. How can I change the ip address so I can then use the
client to do some updates and add new VM.
Or..how can I increase the virtual hard drive space on one of my virtual
machines. This is just a short term workaround. The challenge of
changing the IP address of the base system which is XEN is proving to be
difficult. Any help is greatly appreciated. Long live Xen
Thank you,
Sonny
16 years, 8 months
Fedora 7 - missing dummy interfaces
by David Mueller
I'm trying to move from Fedora Core 5 to Fedora 7. I've run into an
issue where the xen guests, which need several bridged interfaces
bound to dummy devices so they can communicate with each other
(similar to host-only networking with VMWare), won't boot. I think
I've traced the problem to a lack of the dummy1, dummy2, and dummy3
devices, and I'm not sure how to fix it. What I'll describe below is
the setup that worked in Fedora Core 5:
I used the following custom network-bridge script:
#!/bin/sh
dir=$(dirname "$0")
"$dir/network-bridge" "$@" vifnum=0 netdev=dummy0
"$dir/network-bridge" "$@" vifnum=1 netdev=dummy1
"$dir/network-bridge" "$@" vifnum=2 netdev=dummy2
"$dir/network-bridge" "$@" vifnum=3 netdev=dummy3
And the following line was used in the .xen files passed to xm create:
vif = ['mac=2E:22:22:22:22:20,bridge=xenbr1',
'mac=2E:22:22:22:22:21,bridge=xenbr2',
'mac=2E:22:22:22:22:22,bridge=xenbr3']
Running the script resulted in the following:
Using config file "./guest1.xen".
Error: Device 0 (vif) could not be connected. Could not find bridge
device xenbr1
If I try to run the custom network-bridge script manually passing the
"start" command I get several errors:
Device "dummy1" does not exist.
usage: ifdown <device name>
Device "dummy1" does not exist.
Cannot find device "dummy1"
SIOCGIFFLAGS: No such device
Device "dummy2" does not exist.
usage: ifdown <device name>
Device "dummy2" does not exist.
Cannot find device "dummy2"
SIOCGIFFLAGS: No such device
Device "dummy3" does not exist.
usage: ifdown <device name>
Device "dummy3" does not exist.
Cannot find device "dummy3"
SIOCGIFFLAGS: No such device
Any ideas on how to get this working would be greatly appreciated.
- David
16 years, 8 months
Xen, QEMU/KVM or Vmware ?
by John Lagrue
Being quite keen on the concept of virtualisation, I find myself in a
bit of a quandary with F7.
Being one who needs an uptodate kernel (my laptop power does funny
things with older ones) I can't run Xen because the kernels are too
old. Therefore I have QEMU/KVM or Vmware.
Though the F7 documents talk lightly about QEMU being all part of the
Virtual Machine Manager, it isn't really; the resulting systems are
slow, refuse to boot off valid ISO images and have no configuration
options for networking. They don't even use the system CDROM until you
specifically add it after the virtual machine is built. So I use
qemu-kvm on the command line; not that the Fedora documents mention
that option - thank heaven for Google!
But I also see that others are choosing Vmware server to virtualise
guests, and I wonder why. qemu-kvm is pretty good and fairly fast, so
I'm really asking why people choose to use a 3rd party system instead;
is it faster?
Coupled with that: is the virtual machine manager going to work
properly with QEMU/KVM one day, or are the developers all assuming
we'll go for Xen? And if the latter, when might we get an Xen kernel
that's uptodate?
Enquiring minds want to know.
JDL
16 years, 8 months
Install guest os from cd/dvd media
by Wiwat Tharateeraparb
can virt-manager and libvirt are now able to install a guest os from
cd/dvd/iso directly?
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16 years, 8 months
win2k3 server standard edition hangs on "Starting Windows"
by Christopher Miller
Hello list! I'm having a heck of a time getting Windows 2003 Server Standard Edition to install. I've tried using both virt-install and virt-manager, however it would seem that virt-manager gets further.
On the command line, I used this to provision the machine:
# virt-install \
--name=system1 \
--ram=2048 \
--file=/home/luser/virtuals/system1/system1.img \
--file-size=80 \
--nonsparse \
--network=bridge:xenbr0 \
--sdl \
--hvm \
--os-type=windows \
--os-variant=win2k3 \
--cdrom=/media/EN_OS_XP_2003_2428.4/english/win2003/standard/setup.exe
this command failed until I "touch"ed /home/luser/virtuals/system1/system1.img, and then said it was provisioning, and I should reconnect to the domain to see the machine, when I tried this, it was unavailable.
As I've indicated, my experience with virt-manager gets me "further" but what this further is, isn't usable either. I select the same options as above in the gui, and when I click "finish" it allocates the file I've selected, and the new domain shows up in the virt-manager window. I can right-click on the new virtual and connect to the console, select which version of windows I'm installing, and the startup even runs up to the point where it says "Windows Setup: Setup is starting Windows" (this is the last blue dos type screen before being switched into the windows install gui, for those familiar) and freezes there. I've posted a couple screen shots here:
http://63.231.71.205/~cj/xen/AllWindows.png
http://63.231.71.205/~cj/xen/Console.png
I'm running Fedora Core 6, all updates, on a AMD Athlon(tm) 64 X2 Dual Core Processor 3800+, kernel 2.6.20-1.2999.fc6xen, 3GB RAM. I'm installing from an MSDN disk in my cdrom drive. Please let me know if there's any more information I can provide. Thanks in advance!
Christopher Jon Miller
Programmer, Research and Development
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cell 303.552.7666
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16 years, 8 months
freeing up memory back to Domain-0
by Justin Conover
How can you free up memory when you shut a guest down? Give back to
Domain-0 so you can start another one up?
Also, were are the profiles for xen stored? For example I create all of
them under /vm/xen/blah if I decide to delete blah1 and create a new one
named blah1 it says it is already there, even though I removed it.
16 years, 8 months
Re: [Fedora-xen] ANNOUNCE: Virt-top 0.3.1.5 - a top-like utility for displaying virtualization stats
by Richard W.M. Jones
Andy Burns wrote:
> On 09/08/07, Richard W.M. Jones <rjones(a)redhat.com> wrote:
>
>> There is a significantly updated version of virt-top now available. On
>> systems which support it, you can show the mapping of domains to
>> physical CPUs and the amount of each physical CPU being used.
>
> I downloaded the binary 64bit version and ran it on a fedora 7 xen
> host without any problems, the host is a dual-core xeon andnoticed
> the CPU% reporting works differently compared to xentop, I assume this
> is deliberate?
Thanks for trying this! I was on holiday last week, hence the late reply.
> virt-top seems to report each domain's usage as a percentage of all
> the sum of all CPUs, where xentop seems to report the percentages in
> terms of a single CPU.
>
> e.g. on xentop may show dom0 taking 102% and my domU taking 24%, while
> virt-top will shows this as 51% and 12% respectively, which seems more
> logical.
Yes, this is deliberate. We wanted to make it work like virt-manager
and plain top. Notice that xentop is the exception in this regard.
Rich.
PS: I will be making available proper binaries for RHEL, Fedora, CentOS
and Debian, i386 & x86-64, this week.
--
Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/
Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod
Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in
England and Wales under Company Registration No. 03798903
16 years, 8 months
Cannot boot F7 LiveCD as Xen Guest
by Jon Steer
Hello,
I am trying to boot a F7 LiveCD with the following command line
virt-install --hvm --name=mytestvm --ram=1280 \
--nodisks --livecd --cdrom=livecd-20070818-2122.iso \
--os-type=linux --vcpus=1 --vnc
However, I cannot connect to the console. All that I get is a black screen.
The liveCD is built with the default livecd-tools kickstart which
produces a simple, no-X based console system.
I have read through the list and noticed that there was a thread about
having to have inittab setup so that the console is pointed at xvc0?
and also so the kernel had a command line of "console=tty
console=xvc0,9600n8"
is this the case, or is there something else I'm missing?
thanks,
jon
16 years, 8 months
PV network driver
by Songtao Liu
Hi,
as now i want to insert PV driver in my HVM guest to get better network performance, so i should run the following steps as from the README in file:
xen-3.0.3-8.fc6.src.rpm_FILES/xen-3.0.3_0-src/unmodified_drivers/
---------------------------------------------------------------------
To build, run ./mkbuildtree and then
make -C /path/to/kernel/source M=$PWD modules
You get four modules, xen-evtchn-pci.ko, xenbus.ko, xen-vbd.ko, and
xen-vnif.ko. Load xen-evtchn-pci first, then xenbus, and then
whichever of xen-vbd and xen-vnif you happen to need.
----------------------------------------------------------------------
after ./mkbuildtree the 'make' will bring following errors. where could be the problem?
[root@localhost linux-2.6]# make -C /usr/src/kernels/2.6.19-1.2911.6.5.fc6xen-i686/ M=$PWD modules
make: Entering directory `/usr/src/kernels/2.6.19-1.2911.6.5.fc6xen-i686'
CC [M] /home/songtao/Desktop/rpm/xen-3.0.3-8.fc6.src.rpm_FILES/xen-3.0.3_0-src/unmodified_drivers/linux-2.6/blkfront/blkfront.o
:1:1: warning: "__XEN_INTERFACE_VERSION__" redefined
:1:1: warning: this is the location of the previous definition
In file included from /home/songtao/Desktop/rpm/xen-3.0.3-8.fc6.src.rpm_FILES/xen-3.0.3_0-src/unmodified_drivers/linux-2.6/blkfront/blkfront.c:39:
/home/songtao/Desktop/rpm/xen-3.0.3-8.fc6.src.rpm_FILES/xen-3.0.3_0-src/unmodified_drivers/linux-2.6/blkfront/block.h:38:26: error: linux/config.h: No such file or directory
/home/songtao/Desktop/rpm/xen-3.0.3-8.fc6.src.rpm_FILES/xen-3.0.3_0-src/unmodified_drivers/linux-2.6/blkfront/block.h:50:35: error: linux/devfs_fs_kernel.h: No such file or directory
/home/songtao/Desktop/rpm/xen-3.0.3-8.fc6.src.rpm_FILES/xen-3.0.3_0-src/unmodified_drivers/linux-2.6/blkfront/blkfront.c: In function âsetup_blkringâ:
/home/songtao/Desktop/rpm/xen-3.0.3-8.fc6.src.rpm_FILES/xen-3.0.3_0-src/unmodified_drivers/linux-2.6/blkfront/blkfront.c:232: warning: passing argument 2 of âbind_evtchn_to_irqhandlerâ from incompatible pointer type
/home/songtao/Desktop/rpm/xen-3.0.3-8.fc6.src.rpm_FILES/xen-3.0.3_0-src/unmodified_drivers/linux-2.6/blkfront/blkfront.c: In function âbackend_changedâ:
/home/songtao/Desktop/rpm/xen-3.0.3-8.fc6.src.rpm_FILES/xen-3.0.3_0-src/unmodified_drivers/linux-2.6/blkfront/blkfront.c:275: error: âstruct block_deviceâ has no member named âbd_semâ
/home/songtao/Desktop/rpm/xen-3.0.3-8.fc6.src.rpm_FILES/xen-3.0.3_0-src/unmodified_drivers/linux-2.6/blkfront/blkfront.c:281: error: âstruct block_deviceâ has no member named âbd_semâ
/home/songtao/Desktop/rpm/xen-3.0.3-8.fc6.src.rpm_FILES/xen-3.0.3_0-src/unmodified_drivers/linux-2.6/blkfront/blkfront.c: In function âdo_blkif_requestâ:
/home/songtao/Desktop/rpm/xen-3.0.3-8.fc6.src.rpm_FILES/xen-3.0.3_0-src/unmodified_drivers/linux-2.6/blkfront/blkfront.c:617: warning: format â%lxâ expects type âlong unsigned intâ, but argument 4 has type âsector_tâ
make[2]: *** [/home/songtao/Desktop/rpm/xen-3.0.3-8.fc6.src.rpm_FILES/xen-3.0.3_0-src/unmodified_drivers/linux-2.6/blkfront/blkfront.o] Error 1
make[1]: *** [/home/songtao/Desktop/rpm/xen-3.0.3-8.fc6.src.rpm_FILES/xen-3.0.3_0-src/unmodified_drivers/linux-2.6/blkfront] Error 2
make: *** [_module_/home/songtao/Desktop/rpm/xen-3.0.3-8.fc6.src.rpm_FILES/xen-3.0.3_0-src/unmodified_drivers/linux-2.6] Error 2
make: Leaving directory `/usr/src/kernels/2.6.19-1.2911.6.5.fc6xen-i686'
[root@localhost linux-2.6]# ls /usr/src/kernels/2.6.19-1.2911.6.5.fc6xen-i686/
arch crypto fs init kabi_whitelist lib mm net security symsets-2.6.19-1.2911.6.5.fc6xen.tar.gz
block drivers include ipc kernel Makefile Module.symvers scripts sound usr
[root@localhost linux-2.6]# uname -a
Linux localhost.localdomain 2.6.19-1.2911.6.5.fc6xen #1 SMP Sun Mar 4 16:59:41 EST 2007 i686 i686 i386 GNU/Linux
[root@localhost linux-2.6]# rpm -qa | grep xen
xen-libs-3.0.3-8.fc6
kernel-xen-debuginfo-2.6.19-1.2911.6.5.fc6
kernel-xen-2.6.19-1.2911.6.5.fc6
xen-debuginfo-3.0.3-8.fc6
xen-3.0.3-8.fc6
Any hint will be highly appreciated. Thanks
Songtao
16 years, 8 months
