xmlrpc python and session login
by slbubba＠charter.net
Folks;
I'm trying to see what's available (working) in xen for remote management. I thought I'd try something simple using xmlrpclib and python. I tried establishing a session and logging in but I'm not getting anywhere fast. It appears that either xend isn't functional in this area or something (perhaps) is not set correctly in the xend-config.sxp file. Has anyone been able to login to a xen system successfully? Are any of the facilities in the xend-config file functional with this RH version of xend?
OS: RHEL5.0 latest update
kernel: 2.6.18-8.1.14.el5xen
RPM's: xen-libs-3.0.3-25.0.4.el5
xen-3.0.3-25.0.4.el5
python-2.4.3-19.el5
-----------
python
>>> import xmlrpclib
>>> xen = xmlrpclib.Server("http://mysys.com:8006")
>>> asess = xen.session.login_with_password("batman", "monkeypus")
socket.error: (111, 'Connection refused')
Thanks
Warren
16 years, 6 months
installing FC7 under Debian Etch
by Amos Shapira
Hello,
I'm trying to install Fedora 7 under Debian Etch running on Intel Xeon 3050
(i.e. with hardware virtualization) and x86_64 kernel (2.6.18-4-xen-amd64)
with 4Gb RAM (the hardware supports up to 8Gb).
I configured it this way:
kernel = '/usr/lib/xen-3.0.3-1/boot/hvmloader'
builder = 'linux'
memory = '256'
name = 'fc7-01'
vif = ['type=ioemu, bridge=xenbr0']
disk = ['phy:/dev/xen/fc7-01,ioemu:hda,w']
cdrom = 'file://root/iso/fc7/x86_64/boot.iso'
device_model='/usr/lib/xen-3.0.3-1/bin/qemu-dm'
ne2000='0'
boot='d'
sdl='1'
And when I try to run "xm create" I get:
Using config file "/etc/xen/fc7-01.cfg".
Error: (22, 'Invalid argument')
And xend-debug.log contains:
ERROR: Kernel not a Xen-compatible Elf image.
ERROR: Error constructing guest OS
>From googl'ing around for this error it looks like the FC kernel is PAE
enabled but maybe the debian kernel isn't and this is the problem.
(the hardware itself supports PAE according to /proc/cpuinfo)
I get the same results trying to boot the i386 version of Fedora 7.
Does anyone know whether this is the case? If so - what can I do to get
things running? I couldn't find a non-pae Fedora installation image or a
PAE-enabled Debian Etch kernel (I'm not sure it makes sense on x86_64
architecture).
Also this Xen host runs Windows 2003 Server as a guest, in case this
matters.
Thanks,
--Amos
16 years, 6 months
No agpgart? What?
by Rick Stevens
Hi, gang. I'm trying to get an F7-based Xen dom0 running on my laptop
(so I can run the "Dark Lord's" Vista as a domU). The laptop is an
HP dv6000 with an Intel Duo Core proc and has the Intel graphics
chipset.
It all works well under F7, but the xen kernel doesn't create the
agpgart devices as witnessed by the Xorg.0.log:
(EE) GARTInit: Unable to open /dev/agpgart (No such file or directory)
(WW) intel(0): /dev/agpgart is either not available, or no memory is
available
for allocation. Using pre-allocated memory only.
and hence, I can't use X (which makes Xen fairly useless to me). This
is a fully updated F7. Relevant modules:
kernel-xen-2.6.20-2936.fc7
xen-libs-3.1.0-6.fc7
xen-3.1.0-6.fc7
Any ideas?
----------------------------------------------------------------------
- Rick Stevens, Principal Engineer rstevens(a)internap.com -
- CDN Systems, Internap, Inc. http://www.internap.com -
- -
- Denial. It ain't just a river in Egypt anymore! -
----------------------------------------------------------------------
16 years, 6 months
RE: [Fedora-xen] Can't ping windows HVM machine
by Steve Brueckner
Just in case you haven't already checked this: I think Windows comes with
the firewall configured to block icmp echo requests by default. At least,
that's bitten me in your exact situation in the past.
Steve Brueckner, ATC-NY
-----Original Message-----
From: Nico Sabbi [mailto:Nicola.Sabbi@poste.it]
Sent: Monday, October 15, 2007 12:16 PM
To: Fedora-xen(a)redhat.com
Subject: [Fedora-xen] Can't ping windows HVM machine
Hi,
using fc8-test2 updated with all packages available I could
successfully install a windows xp machine, but I can't
even ping it (although windows can ping my fedora and internet
overall).
The ip assigned to windows is in the range 192.168.122.x (assigned
to a virtual nic) while the ip assigned to fedora is 192.168.2.102.
route -n shows everything correctly set up (192.168.122.0/24
going through the virtual interface (virbr0 IIRC)), but still
I can't ping the virtual machine, even if I run
$ /etc/init.d/iptables stop
What did I do wrong?
BTW, since it's well known that in the virtual machine the usb mouse
must be replace with a usb tablet to make the pointer work correctly,
I guess that this option should be set by default rather than making
users swear for hours :)
Thanks,
Nico
--
Fedora-xen mailing list
Fedora-xen(a)redhat.com
https://www.redhat.com/mailman/listinfo/fedora-xen
16 years, 6 months
No agpgart? What?
by Rick Stevens
This is a repost, since I got some weird message from the mail
server that it thought it was spam. Forgive me if you've seen
it before.
I'm trying to get an F7-based Xen dom0 running on my laptop (I need
to run Vista as a domU, ugh!). The laptop is an HP dv6000 with an
Intel Duo Core proc and has the Intel graphics chipset.
The laptop runs perfectly fine under standard F7, but the xen kernel
doesn't create the agpgart devices as witnessed by the Xorg.0.log:
(EE) GARTInit: Unable to open /dev/agpgart (No such file or directory)
(WW) intel(0): /dev/agpgart is either not available, or no memory is
available for allocation. Using pre-allocated memory only.
and hence, I can't use X (which makes Xen fairly useless to me). This
is a fully updated F7. Relevant modules:
kernel-xen-2.6.20-2936.fc7
xen-libs-3.1.0-6.fc7
xen-3.1.0-6.fc7
Any ideas?
----------------------------------------------------------------------
- Rick Stevens, Principal Engineer rstevens(a)internap.com -
- CDN Systems, Internap, Inc. http://www.internap.com -
- -
- Denial. It ain't just a river in Egypt anymore! -
----------------------------------------------------------------------
16 years, 6 months
VFS: Cannot open root device "sda1" or unknown-block(0, 0)
by Haifeng He
Hi, All
I followed the steps in Fedora7VirtQuickStart to install Xen on Fedora 7.
I downloaded couples of file system image from http://jailtime.org/. However,
every time I tried to create guest OS using those file system image, I got error
messages:
VFS: Cannot open root device "sda1" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
An example of Xen configure is:
kernel = "/boot/vmlinuz-2.6.20-2936.fc7xen"
memory = 256
name = "fedora.fc6"
vif = [ '' ]
dhcp = "dhcp"
disk = ['file:/xen/fedora/fedora.fc6.img,sda1,w', 'file:/xen/fedora/fedora.swap,
sda2,w']
root = "/dev/sda1 ro"
Having been googling on this topic for a while, but still not getting the right
answer for it. Any help will be appreciated.
Thanks
Haifeng
16 years, 6 months
Can't ping windows HVM machine
by Nico Sabbi
Hi,
using fc8-test2 updated with all packages available I could
successfully install a windows xp machine, but I can't
even ping it (although windows can ping my fedora and internet
overall).
The ip assigned to windows is in the range 192.168.122.x (assigned
to a virtual nic) while the ip assigned to fedora is 192.168.2.102.
route -n shows everything correctly set up (192.168.122.0/24
going through the virtual interface (virbr0 IIRC)), but still
I can't ping the virtual machine, even if I run
$ /etc/init.d/iptables stop
What did I do wrong?
BTW, since it's well known that in the virtual machine the usb mouse
must be replace with a usb tablet to make the pointer work correctly,
I guess that this option should be set by default rather than making
users swear for hours :)
Thanks,
Nico
16 years, 6 months
are dropped packets a sign of network problem?
by progressdll
in a xen environment , i see a lot op dropped packets via netstat -i
Is this a sign of network problems, or is it normal to see this kind of
numbers? i'm not sure how to interprete the data. is this normal, bad,
critical. What are your stats on this?
I guess i have a xen issue of some sort, but not sure what yet
# netstat -i
Kernel Interface table
Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP
TX-OVR Flg
eth0 1500 0 53999491 0 0 0 6234874 0 0
0 BMRU
lo 16436 0 9247734 0 0 0 9247734 0 0
0 LRU
peth0 1500 0 135679270 0 0 0 95455766 0 0
0 BORU
tap0 1500 0 5411876 0 0 0 35071803 0 0
0 BMRU
vif-vmdeb 1500 0 0 0 0 0 35 0 333350
0 BORU
vif0.0 1500 0 6234874 0 0 0 53999492 0 0
0 BORU
vif6.0 1500 0 55813641 0 0 0 98482968 0 482338
0 BORU
vif6.1 1500 0 0 0 0 0 39 0 46875771
0 BORU
vif68.0 1500 0 0 0 0 0 0 0 0
0 BOU
vif69.0 1500 0 9349348 0 0 0 30571290 0 3282
0 BORU
vif69.1 1500 0 0 0 0 0 44 0 18947590
0 BORU
vif70.0 1500 0 129605 0 0 0 460256 0 702
0 BORU
vif70.1 1500 0 0 0 0 0 35 0 333350
0 BORU
xenbr0 1500 0 46298695 0 0 0 0 0 0
0 BORU
--
View this message in context: http://www.nabble.com/are-dropped-packets-a-sign-of-network-problem--tf45...
Sent from the Fedora Xen mailing list archive at Nabble.com.
16 years, 6 months
Install, backup and recover
by Augusto Castelan Carlson
Hi!
I will have to install almost 30 servers with xen. Each server will
host two guests. Both host and guests OS will be fedora 7. One hard
disk partition will be allocated to each guest, for example:
host -> /dev/sda1
guest1 -> /dev/sda2
guest2 -> /dev/sda3
I did some search in the list archives and google, but found what I
was looking for.
I would like to have some suggestion about the following:
1) The best approach to install all these hosts and guest? Cobbler?
I'm not sure if the server configuration will be all the same.
2) If the hard disk fail, which is the best approach to recover the
host and guests? Don't care about users data and server config files,
as there will be user data and config backup.
3) If only one of the guests fail, which is the best approach to
recover this guest?
4) If only the host fail, which is the best approach to recover this
host and do not lost access to guest using to such as
virt-manager/virsh/xm?
I can provide more info if needed.
Thanks in advance.
Regards,
--
Augusto Castelan Carlson
16 years, 6 months
Re: xen, revisor
by Arno Karner
Arno,
May we know what version of Fedora you are using, and what
version/distribution it is you're trying to create?
* fc7 with test repos + my repos
Arno Karner wrote:
> ok I make a new dvd iso image with revisor, modify the isolinux.cfg so
> it boots, and installs with my kickstart file.
Revisor does that already, so what is it you edit? Further on in the
message I see you add another option but also you want to troubleshoot
really fast. Manually adding in an option doesn't seem like the most
efficient thing to do.
* revisor doesn't do the default kickstart file right, corectectly at the moment, and
* certainly doesn't do multiple kickstart files boot menu options yet
* so i deconstuct the image, copy my kick start files to the iso image
* copy my isolinux.cfg menu, reconstruct the image
> I look at the anaconda.ks.cfg and none of my rpm packages, which were
> installed show up.
>
Depending on what is in your original kickstart I'm sure the sample
kickstart anaconda writes out after install is much different. In
particular when any of the packages fail to install.
* my kickstart ran too comletion, but none of my packages which were
* installed showed up in the anaconda.ks.cfg, I'd really like to
* get some kind of feed back loop working so dep packages show up
> Now I'm trying to trouble shoot the post install section of a few of my
> packages, which didn't seem to be executed,
> so is there some where to look. install log didn't show anything useful.
>
I think the %post scripts of your packages is an OK point to start
troubleshooting.
* well the first package I'm trouble shooting is not a simple one
* its a multiple package spec file unfortanlly Requires: is not a
* %command <sub package> format command
> How do I get my rpm-keys installed, doing it from an rpm is not possible
> because rpm does not support nested transactions,
> any Ideas here welcome also. the key files are in the root directory od
> the install image, but that is not good enough.
>
> I looked at the spec file of the package in question and it had a
> Requires: <package> <package> but the packages were not installed,
> or complained about. Hence other packages that were installed gave
> warning messages about user xxx, group yyyy not defined using root:root
> not what I wanted........
>
Are you saying yum and anaconda are having difficulties eating your
packages, or any package? I remember something called PreRequires to
indicate the package being required should be actually installed before
the package requiring is installed. Did you check any Provides:
user(foo), group(bar), against any Requires: user(foo), group(bar)? Are
these your very own packages? Have you tested excluding your own
packages see how that goes?
* PreRequires theres something worth looking into, because
* yes I want certain of my packages to be installed before others
> I'm reducing the install ks.cfg file, to make trouble shooting this in
> xen faster, and including a second menu option for a full install of
> what I want.
>
> Sorry for the cross post but this issue deals with revisor, xen,
> anaconda. I'll be looking into the anaconda emailing list next.
>
I really don't think this has anything to do with xen.
* your right I apologize, I left out the parts about how do I get
* my virtual machine to reboot off the cd the second, third time I restart it
* to test the different install menu items without deleting the virt machine and recreating
* how do I change the cd/dvd isoimage to handle the second piece of media
> I am using bleeding edge rpms, git fc7.testing revisor:git pull, and I
> should expect this. So I thought I'd ask while I try and reduce my loop
> time from 4+ hours
> build iso image, xen.new virt machine + play free civ, update scripts
> and ks.list(s)....repeat
>
> Ideas, flames, constructive criticizing welcome.
Here's an idea. The average desktop floating around any company will
beat you to the 4+ hours of composing time (~30 minutes) and another
will brighten your day doing installs in 15 minutes or less.
* soon that might be an option, but using xen, is where some of this is going
* kickstart files for different virt machine configurations, kind of hard to test those on
* a desktop machine, without running xen which brings me to where I am.
Kind regards,
Jeroen van Meeuwen
- -kanarip
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sorry for the poor quoting, but yahoo does lack common features, like quoting replies
Arno
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16 years, 6 months
