Xen users - Sep 2008 - xm delete - Error: <Fault 3: ''machine1''>

dear users,

thanks for that great piece of software. 

I have to admit that i''m quite new to xen and it''s tools, so
it might be
a lack of knowledge which brings me to this problem:

I use Debian Etch with a AMD64 System (Intel Core 2 Duo 6550)

I decided to build the whole xen system by my own, far away from debian
repositories. So i compiled the xen 2.6.18-8-xen kernel and the xen-3.3
tools and environment.

I step in some problem which i could work out almost. One nagging thingy
remains:

If i understand correctly, xen holds a database for the virtual
machines. If i state the command xm create machine1, there will be an
entry in the database with all of the configuration options as setup in
the /etc/xen/machine1 script.

if i want to make changes in the configuration file, i would edit that
file and then remove the old settings in the database by that stanza:

xm delete machine1

that only gives me the following error:

Error: <Fault 3: ''machine1''>
Usage: xm delete <DomainName>

How can this be solved, do i miss something?

Any help is greatly appreciated

regards

Stefan Bauer

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

It''s like no domain (domU) exists with the name machine1.
Please issue this command: "xm list". What are the results?

2008. 09. 17, szerda keltezéssel 17.10-kor Stefan Bauer ezt
írta:
> dear users,
> 
> thanks for that great piece of software. 
> 
> I have to admit that i''m quite new to xen and it''s tools,
so it might be
> a lack of knowledge which brings me to this problem:
> 
> I use Debian Etch with a AMD64 System (Intel Core 2 Duo 6550)
> 
> I decided to build the whole xen system by my own, far away from debian
> repositories. So i compiled the xen 2.6.18-8-xen kernel and the xen-3.3
> tools and environment.
> 
> I step in some problem which i could work out almost. One nagging thingy
> remains:
> 
> If i understand correctly, xen holds a database for the virtual
> machines. If i state the command xm create machine1, there will be an
> entry in the database with all of the configuration options as setup in
> the /etc/xen/machine1 script.
> 
> if i want to make changes in the configuration file, i would edit that
> file and then remove the old settings in the database by that stanza:
> 
> xm delete machine1
> 
> that only gives me the following error:
> 
> Error: <Fault 3: ''machine1''>
> Usage: xm delete <DomainName>
> 
> How can this be solved, do i miss something?
> 
> Any help is greatly appreciated
> 
> regards
> 
> Stefan Bauer
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users

_______________________________________________
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Exactly. And if the maschine would run you would get an error like that: 

Error: Domain is not halted.
Usage: xm delete <DomainName>

Just restart your machine to get your new config to work. 

Regards
Fabian
>-----Ursprüngliche Nachricht-----
>Von: xen-users-bounces@lists.xensource.com [mailto:xen-users-
>bounces@lists.xensource.com] Im Auftrag von Nemeth, Tamas
>Gesendet: Mittwoch, 17. September 2008 17:18
>An: Stefan Bauer
>Cc: xen-users@lists.xensource.com
>Betreff: Re: [Xen-users] xm delete - Error: <Fault 3:
''machine1''>
>
>It''s like no domain (domU) exists with the name machine1.
>Please issue this command: "xm list". What are the results?
>
>2008. 09. 17, szerda keltezéssel 17.10-kor Stefan Bauer ezt írta:
>> dear users,
>>
>> thanks for that great piece of software.
>>
>> I have to admit that i''m quite new to xen and it''s
tools, so it might be
>> a lack of knowledge which brings me to this problem:
>>
>> I use Debian Etch with a AMD64 System (Intel Core 2 Duo 6550)
>>
>> I decided to build the whole xen system by my own, far away from debian
>> repositories. So i compiled the xen 2.6.18-8-xen kernel and the xen-3.3
>> tools and environment.
>>
>> I step in some problem which i could work out almost. One nagging
thingy
>> remains:
>>
>> If i understand correctly, xen holds a database for the virtual
>> machines. If i state the command xm create machine1, there will be an
>> entry in the database with all of the configuration options as setup in
>> the /etc/xen/machine1 script.
>>
>> if i want to make changes in the configuration file, i would edit that
>> file and then remove the old settings in the database by that stanza:
>>
>> xm delete machine1
>>
>> that only gives me the following error:
>>
>> Error: <Fault 3: ''machine1''>
>> Usage: xm delete <DomainName>
>>
>> How can this be solved, do i miss something?
>>
>> Any help is greatly appreciated
>>
>> regards
>>
>> Stefan Bauer
>>
>> _______________________________________________
>> Xen-users mailing list
>> Xen-users@lists.xensource.com
>> http://lists.xensource.com/xen-users
>
>
>_______________________________________________
>Xen-users mailing list
>Xen-users@lists.xensource.com
>http://lists.xensource.com/xen-users
_______________________________________________
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http://lists.xensource.com/xen-users

* Fabian.Flaegel@t-systems.com <Fabian.Flaegel@t-systems.com> [17.09.2008
17:22]:
> Exactly. And if the maschine would run you would get an error like that: 
> 
> Error: Domain is not halted.
> Usage: xm delete <DomainName>
> 
> Just restart your machine to get your new config to work. 

Well, currently i always destroyed the machine, which should be the same
as restarting right?

But unfortunately the old settings persists.

regards

Stefan Bauer

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Xm destroy is switching the light off. Not the nice way... :)

If your machine works, you can connect via xm console <DomName> and
shutdown it manually.

What are the settings that persist? 

Normally you should start the machine with xm create <config-file> and
these settings are fixed in the CF.

Regards
Fabian
>-----Ursprüngliche Nachricht-----
>Von: xen-users-bounces@lists.xensource.com [mailto:xen-users-
>bounces@lists.xensource.com] Im Auftrag von Stefan Bauer
>Gesendet: Mittwoch, 17. September 2008 17:26
>An: xen-users@lists.xensource.com
>Betreff: Re: [Xen-users] xm delete - Error: <Fault 3:
''machine1''>
>
>* Fabian.Flaegel@t-systems.com <Fabian.Flaegel@t-systems.com>
[17.09.2008
>17:22]:
>> Exactly. And if the maschine would run you would get an error like
that:
>>
>> Error: Domain is not halted.
>> Usage: xm delete <DomainName>
>>
>> Just restart your machine to get your new config to work.
>
>
>Well, currently i always destroyed the machine, which should be the same
>as restarting right?
>
>But unfortunately the old settings persists.
>
>regards
>
>Stefan Bauer
>
>_______________________________________________
>Xen-users mailing list
>Xen-users@lists.xensource.com
>http://lists.xensource.com/xen-users
_______________________________________________
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http://lists.xensource.com/xen-users

* Fabian.Flaegel@t-systems.com <Fabian.Flaegel@t-systems.com> [17.09.2008
17:29]:
> Xm destroy is switching the light off. Not the nice way... :)
That was just for testing purpose.
> If your machine works, you can connect via xm console <DomName> and
shutdown it manually.
I was trying to debug some network issues with my udev scripts - so the
machine did not come up correctly, so i had to change settings more than
20times.
> What are the settings that persist? 
In my case there was options for vnc and the disk settings which did not
get changed after a hard destroy.
> Normally you should start the machine with xm create <config-file>
and these settings are fixed in the CF.
So whats the use of xm delete at all?

regards

Stefan Bauer

_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

In my book "Xen - Virtualisierung unter Linux" i find the following: 

"Xm delete removes a domain from the configurationdatabase. This is
necessary after modifying the configuration file. (!) xm new cannot overwrite
old configs.

Xm delete removes the original Domains-UUID. It will be recreate with another xm
new."

Does this help?

Regards
Fabian
>-----Ursprüngliche Nachricht-----
>Von: xen-users-bounces@lists.xensource.com [mailto:xen-users-
>bounces@lists.xensource.com] Im Auftrag von Stefan Bauer
>Gesendet: Mittwoch, 17. September 2008 17:34
>An: xen-users@lists.xensource.com
>Betreff: Re: [Xen-users] xm delete - Error: <Fault 3:
''machine1''>
>
>* Fabian.Flaegel@t-systems.com <Fabian.Flaegel@t-systems.com>
[17.09.2008
>17:29]:
>> Xm destroy is switching the light off. Not the nice way... :)
>
>That was just for testing purpose.
>
>> If your machine works, you can connect via xm console <DomName>
and
>shutdown it manually.
>
>I was trying to debug some network issues with my udev scripts - so the
>machine did not come up correctly, so i had to change settings more than
>20times.
>> What are the settings that persist?
>
>In my case there was options for vnc and the disk settings which did not
>get changed after a hard destroy.
>
>> Normally you should start the machine with xm create
<config-file> and
>these settings are fixed in the CF.
>
>So whats the use of xm delete at all?
>
>regards
>
>Stefan Bauer
>
>_______________________________________________
>Xen-users mailing list
>Xen-users@lists.xensource.com
>http://lists.xensource.com/xen-users
_______________________________________________
Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

* Fabian.Flaegel@t-systems.com <Fabian.Flaegel@t-systems.com> [17.09.2008
17:42]:
> "Xm delete removes a domain from the configurationdatabase. This is
necessary after modifying the configuration file. (!) xm new cannot overwrite
old configs.
> 
> Xm delete removes the original Domains-UUID. It will be recreate with
another xm new."
No, to repeat myself: I want state xm delete to remove a domain from the
configuration database as mentioned in my first post. But i cant because
i get Error: <Fault 3: ''machine1''>

regards

stefan

_______________________________________________
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Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Hi Stefan,
>> "Xm delete removes a domain from the configurationdatabase. This
is
>necessary after modifying the configuration file. (!) xm new cannot
>overwrite old configs.
>>
>> Xm delete removes the original Domains-UUID. It will be recreate with
>another xm new."
>
>No, to repeat myself: I want state xm delete to remove a domain from
the
>configuration database as mentioned in my first post. But i cant
because
>i get Error: <Fault 3: ''machine1''>
This happens if your machine is up. Does is work when your machine is
down? 

It worked for me, even without xm delete, to get a new config on a vm. I
am running an Ubuntu Server 8.04 LTS here. Maybe that''s a reason. 

Regards
Fabian

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Fabian.Flaegel@t-systems.com schrieb:
> This happens if your machine is up. Does is work when your machine is
> down? 
It does not work no matter if it''s on or off. Have you verified if you
get the new settings after you change something in the xen machine
configuration in /etc/xen/... ?

Could you please provide the running xen related processes displayed
by ps?

What xen-hypervisor && xen-utils do ubuntu 8.04 lts ship by default?

with frustrated greetings

Stefan

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>Fabian.Flaegel@t-systems.com schrieb:
>> This happens if your machine is up. Does is work when your machine is
>> down?
>
>It does not work no matter if it''s on or off. Have you verified if
you
>get the new settings after you change something in the xen machine
>configuration in /etc/xen/... ?
Yes it does. We did it about 50 times during setup. :)
>Could you please provide the running xen related processes displayed
>by ps?
>
>What xen-hypervisor && xen-utils do ubuntu 8.04 lts ship by default?
# ps aux | grep xen
root        30  0.0  0.0      0     0 ?        S<   Sep02   0:08
[xenwatch]
root        31  0.0  0.0      0     0 ?        S<   Sep02   0:00
[xenbus]
root      5705  0.0  0.0   8636  1136 ?        S    Sep02   0:58
xenstored --pid-file /var/run/xenstore.pid
root      5711  0.0  0.0  22720  2896 ?        Sl   Sep02   0:09
xenconsoled
root      5714  0.0  0.0  95000  9296 ?        S    Sep02   0:00 python
/usr/sbin/xend start
root      5716  0.1  0.2 249388 29432 ?        Sl   Sep02  29:01 python
/usr/sbin/xend start
root     25998  0.0  0.0   5164   828 pts/5    R+   17:06   0:00 grep
xen


# ps aux | grep tap
root     22712  0.0  0.0  20300   784 ?        S    Sep04   0:07 tapdisk
/var/run/tap/tapctrlwrite1 /var/run/tap/tapctrlread1
root     22858  0.0  0.0      0     0 ?        S<   Sep04   0:00
[blktap.84.sda1]
root     22900  0.0  0.0  20300   784 ?        S    Sep04   0:02 tapdisk
/var/run/tap/tapctrlwrite2 /var/run/tap/tapctrlread2
root     23065  0.0  0.0      0     0 ?        S<   Sep04   0:00
[blktap.85.sda1]
root     23342  0.0  0.0  20300   784 ?        S    Sep04   0:22 tapdisk
/var/run/tap/tapctrlwrite4 /var/run/tap/tapctrlread4
root     23481  0.0  0.0      0     0 ?        S<   Sep04   0:02
[blktap.87.sda1]


# dpkg -l |grep xen
ii  libxen3                                3.2.0-0ubuntu10
library interface for Xen, a Virtual Machine
ii  libxen3.1                              3.1.0-0ubuntu19
library interface for Xen, a Virtual Machine
ii  linux-backports-modules-2.6.24-19-xen  2.6.24-19.17
Ubuntu supplied Linux modules for version 2.
ii  linux-backports-modules-hardy-xen      2.6.24.19.21
Backported drivers for xen kernel image
ii  linux-headers-2.6.24-16-xen            2.6.24-16.30
Linux kernel headers for version 2.6.24 on T
ii  linux-image-2.6.24-16-xen              2.6.24-16.30
Linux kernel image for version 2.6.24 on Thi
ii  linux-image-2.6.24-19-xen              2.6.24-19.36
Linux kernel image for version 2.6.24 on Thi
ii  linux-image-xen                        2.6.24.19.21
Real time Linux kernel image
ii  linux-restricted-modules-2.6.24-16-xen 2.6.24.12-16.34
Non-free Linux 2.6.24 modules on Xen
ii  linux-restricted-modules-2.6.24-19-xen 2.6.24.13-19.45
Non-free Linux 2.6.24 modules on Xen
ii  linux-restricted-modules-xen           2.6.24.19.21
Restricted Linux modules for xen kernels
ii  linux-ubuntu-modules-2.6.24-16-xen     2.6.24-16.23
Ubuntu supplied Linux modules for version 2.
ii  linux-ubuntu-modules-2.6.24-19-xen     2.6.24-19.28
Ubuntu supplied Linux modules for version 2.
ii  linux-xen                              2.6.24.19.21
Complete xen Linux kernel
ii  python-xen-3.2                         3.2.0-0ubuntu10
python bindings for Xen, a Virtual Machine M
ii  ubuntu-xen-server                      0.0.1-2ubuntu8
Xen software for running on servers
ii  xen-docs-3.2                           3.2.0-0ubuntu10
documentation for XEN, a Virtual Machine Mon
rc  xen-hypervisor-3.1                     3.1.0-0ubuntu19
The Xen Hypervisor for i386, amd64 amd lpia
ii  xen-hypervisor-3.2                     3.2.0-0ubuntu10
The Xen Hypervisor for i386 and amd64.
ii  xen-shell                              1.8-1
Console based Xen administration utility
ii  xen-tools                              3.8-4ubuntu4
Tools to manage debian XEN virtual servers
rc  xen-utils-3.1                          3.1.0-0ubuntu19
XEN administrative tools
ii  xen-utils-3.2                          3.2.0-0ubuntu10
XEN administrative tools

Xen 3.2 is used.

>with frustrated greetings
Hope it''s solved soon. :)

Regards,
Fabian

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Fabian.Flaegel@t-systems.com schrieb:
> Yes it does. We did it about 50 times during setup. :)
I did not expected anything else :p
>> Could you please provide the running xen related processes displayed
>> by ps?
thanks for providing further informations.

Regards

stefan

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Xen-users mailing list
Xen-users@lists.xensource.com
http://lists.xensource.com/xen-users

Hi!

1. There are the virtual domain initial startup files, describing the
domains (domUs). I think, these files are mostly used when creating
domains, in spite the fact, that it''s no longer recommended. We should
export the domU config from xend by "xm list -l DOMAINNAME >
DUMPFILE"
into a text file, modify that file, and reimport by "xm new -F
DUMPFILE"

2. The name of domU isn''t derived from the filename of it''s
virtual
domain initial startup file, but from the "name=DOMAINNAME" parameter
of
that file, which means, the name of the domU may be totally different
from that of the config file. Pay attention to this, when just copying
domain config files!

3. There can be some directives in the config files, which instruct xend
what to do to the domain under some circumstances: on_poweroff,
on_reboot, on_crash, on_xend_start, on_xend_stop, etc. Read this:
http://www.novell.com/documentation/vmserver/config_options/index.html?page=/documentation/vmserver/config_options/data/bookinfo.html
and use google.

4. xm behaves the following way:

-"xm new CONFIGFILE" : create a domU in xenstore
(http://wiki.xensource.com/xenwiki/XenStore), but don''t start it yet. A
domain created by xm new is stored persistently in xenstore, which
means, it will remains there after shutting down that domU, or even
rebooting the whole dom0.

-"xm create CONFIGFILE" : create, AND START a domU. Domains created
this
way will be deleted from the xenstore when stopped.

-"xm shutdown DOMAINNAME" : shut down the domU normally. Xend send a
message to the domUs kernel, which behaves like the (ATX) power button
were pressed on a real computer. It works only with paravirtualized
domains, except when using the GPL PV drivers for HVM Windows guests.
Beware! They are unstable, and can cause severe filesystem damage:
http://wiki.xensource.com/xenwiki/XenWindowsGplPv


-"xm destroy DOMAINNAME" : Terminate the domU immediately, which is
like
unplugging a real computer from elecrtricity. "xm shutdown" equals
"xm
destroy" for HVM guests.

-"xm delete DOMAINNAME" : Delete a domain, which is present in
xenstore,
but not running! This is only possible for domains created with "xm
new", and the shut down somehow.

You can view some runtime parameters of dumUs with the command
"xentop",
but it only shows the running domains! If you want to view all the
domains int the xenstore (even stopped ones), the use this command :"xm
list".


Can you solve your problems now?


2008. 09. 18, csütörtök keltezéssel 15.13-kor Stefan Bauer ezt írta:
> Fabian.Flaegel@t-systems.com schrieb:
> > Yes it does. We did it about 50 times during setup. :)
> 
> I did not expected anything else :p
> 
> >> Could you please provide the running xen related processes
displayed
> >> by ps?
> 
> thanks for providing further informations.
> 
> Regards
> 
> stefan
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users

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> So if i copy the winxp-sp3 configuration file to test1234
> and also change the name to test1234, the new settings will
> be used. so there must be a place where old informations
> get stored persistent.
There may be config files hiding somewhere. Give the FILL path name for
xm, and search for the old files in diretories
like /etc/xen/vm /var/lib/xend/domains, etc.

> I never used xm new before, so the xenstore database you mentioned must be
empty.
Are you sure? What does "xm list" say?


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* Nemeth, Tamas <nice@titanic.nyme.hu> [19.09.2008
12:05]:
> There may be config files hiding somewhere. Give the FILL path name for
> xm, and search for the old files in diretories
> like /etc/xen/vm /var/lib/xend/domains, etc.
/etc/xen/vm does not exist nor are there any hidden files.

/var/lib/xen is empty
/var/lib/xend/domains is empty
/var/lib/xend/state holds:

drwxr-xr-x 3 root root  4096 2008-09-16 16:25 .
drwxr-xr-x 5 root root  4096 2008-09-14 16:52 ..
-rw-r--r-- 1 root root  1664 2008-09-19 09:37 cpu.xml
-rw-r--r-- 1 root root   471 2008-09-19 09:37 host.xml
drwxr-xr-x 2 root root  4096 2008-09-14 16:52 local_sr
-rw-r--r-- 1 root root  1581 2008-09-19 09:37 network.xml
-rw-r--r-- 1 root root    31 2008-09-19 09:37 pbd.xml
-rw-r--r-- 1 root root   571 2008-09-19 09:37 pif.xml
-rw-r--r-- 1 root root 21944 2008-09-19 09:37 ppci.xml
-rw-r--r-- 1 root root  1258 2008-09-19 09:37 sr.xml

/var/lib/xend/storage is empty

/var/lib/xendstored only got one tdb file:

tdb: TDB database version 6, little-endian hash size 7919 bytes

etch64dom0:/var/lib/xenstored# strings tdb | grep winxp-sp3
winxp-sp3device
winxp-sp3
winxp-sp3c
winxp-sp3ce-misc
/xen/winxp-sp3.img
winxp-sp3device
-domain-name winxp-sp3 -nographic -vcpus 1 -boot c -usb -usbdevice
tablet -net nic,vlan=1,macaddr=00:16:3E:00:00:04,model=rtl8139 -net
tap,vlan=1,ifname=tap8.0,bridge=xenbr0/d
winxp-sp3ernel

Her are the new settings, boot from c is correct.
> > I never used xm new before, so the xenstore database you mentioned
must be empty.
> 
> Are you sure? What does "xm list" say?
etch64dom0:/etc/xen# xm list
Name                                        ID   Mem VCPUs      State
Time(s)
Domain-0                                     0  1024     2     r-----
366.4
david                                        5   512     1     -b----
13.2
freenx                                       4   512     1     -b----
50.3

Regards

stefan

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I coult work that problem out.

I miss pyhton-xml package on my debian etch. Maybe that should go to the
needed packages mentioned in the source directory of xen-3.3
README-file.

Thanks again.


Regards

-- 

Stefan Bauer

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