- Users - libvirt List Archives

[libvirt-users] How to disconnect the ISO image using virsh
by Masanari Iida 31 Mar '11

31 Mar '11

Hello, I can attach disc ISO image to cd-rom from virsh. And I can replace the ISO image from disc1 to disc2 using the 2nd example. (example) attach-disk guest01 /root/disc1.iso hdc --driver file --type cdrom --mode readonly attach-disk guest01 /root/disc2.iso hdc --driver file --type cdrom --mode readonly My question is, how can I disconnect the image from the cdrom drive using virsh. Because, if I try to detach-disk hdc, I got following errors. virsh # detach-disk guest01 hdc error: Failed to detach disk error: this function is not supported by the connection driver: This type of device cannot be hot unplugged What I can do is possible from virt-manager's "Disconnect" button, (next to source path: line) from Hardware's TAB, Disk hdc screen. I want to do this from virsh. OS: RHEL5.6 libvirt-0.8.2-15.el5_6.1 is used. Regards, Masanari Iida

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[libvirt-users] block migration
by mkey 31 Mar '11

31 Mar '11

Hello, I'm trying to use block migration with below procedure, but got some errors. I would highly appreciate if anyone give me a hand.. There are 2 hosts(hostA and hostB), both OS is Ubuntu 10.10(merverick). And a VM(named centos54-1mg) is running at hostA(centos54 64bit). [package version] +++-=====================-=====================-=================== ii kvm 1:84+dfsg-0ubuntu16+0 dummy transitional ii libvirt-bin 0.8.8-1ubuntu3~ppamav the programs for ii qemu-common 0.14.0~rc1+noroms-0ub qemu common ii qemu-kvm 0.14.0~rc1+noroms-0ub Full virtualization [proceduere] root@hostA:~# /etc/init.d/apparmor teardown root@hostA:~# stop libvirt-bin && start libvirt-bin root@hostB:~# /etc/init.d/apparmor teardown root@hostB:~# stop libvirt-bin && start libvirt-bin root@hostB:~# touch /tmp/centos54-1mg.img root@hostB:~# chown -R libvirt-qemu:kvm /tmp/centos54-1mg.img root@hostA:~# virsh migrate --live --copy-storage-all --p2p --direct centos54-1mg qemu+tcp://hostB/system [NOTE] 1. What I was being careful is permission. Therefore, apparmor is off, libvirt is running as root. 2. normal live migration is successfully finished. So, libvirtd can communicate between hostA and hostB. 3. Regarding to options "--live --copy-storage-all --p2p --direct", I think --copy-storage-all is minimum, so I was trying to change pairs of options, but no good result. The error logs and configuration at hostB are attached. Thanks in advance mkey

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[libvirt-users] Invitation to connect on LinkedIn
by Kadir Yuceer 30 Mar '11

30 Mar '11

LinkedIn ------------ I'd like to add you to my professional network on LinkedIn. - Kadir Kadir Yuceer Software Developer at Atos Consulting Turkey Confirm that you know Kadir Yuceer https://www.linkedin.com/e/qej7u0-glw6ia58-71/isd/2602897787/y-Avz2HO/ -- (c) 2011, LinkedIn Corporation

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[libvirt-users] Event Types Libvirt can handle
by kadir yüceer 30 Mar '11

30 Mar '11

Hello all, I'm trying to observe access events of guest VMs. However, as far as I understand event types in libvirt are really generic, like domain defined/undefined, started/stopped, etc. Isn't there any specific event types that libvirt can handle (like access to a disk), or I'm missing them? Thanks in advance Kind regards Kadir

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[libvirt-users] stage of data upload/download patch
by James Barkley 28 Mar '11

28 Mar '11

Hey all, I'm looking at ways to upload/download to/from a datastore. I see it is on the todo roadmap wiki (http://libvirt.org/todo.html) and also on bugzilla at https://bugzilla.redhat.com/show_bug.cgi?id=636130. It looks to be a low priority item, so I was thinking about writing my own patch for this when I ran across this thread http://comments.gmane.org/gmane.comp.emulators.libvirt/35532. It looks like a patch going through discussion/revision for a variety of operations (e.g., vol-upload) to do exactly what I need. Does anyone have more info on the status of this patch (or the "todo" feature in general) and when it may be accepted into the baseline? I've been checking the hourly snapshots but haven't seen it show up yet. -jb

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Re: [libvirt-users] libvirt-users Digest, Vol 15, Issue 26
by Zvi Dubitzky 28 Mar '11

28 Mar '11

I resolved topic 1 please diregard ( libvirtd.conf : Authentication / auth_tcp="none") . Please answer topic 2 as ver 0.8.8 claims cpu controller (cgroups) is not mounted while it is thanks Zvi Dubitzky Email:dubi@il.ibm.com libvirt-users-bounces(a)redhat.com wrote on 27/03/2011 18:00:05: > From: libvirt-users-request(a)redhat.com > To: libvirt-users(a)redhat.com > Date: 27/03/2011 18:00 > Subject: libvirt-users Digest, Vol 15, Issue 26 > Sent by: libvirt-users-bounces(a)redhat.com > > Send libvirt-users mailing list submissions to > libvirt-users(a)redhat.com > > To subscribe or unsubscribe via the World Wide Web, visit > https://www.redhat.com/mailman/listinfo/libvirt-users > or, via email, send a message with subject or body 'help' to > libvirt-users-request(a)redhat.com > > You can reach the person managing the list at > libvirt-users-owner(a)redhat.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of libvirt-users digest..." > > > Today's Topics: > > 1. Re: libvirt-users Digest, Vol 15, Issue 25 (Zvi Dubitzky) > 2. virsh sechedinfo with libvirt-0.8.8 (Zvi Dubitzky) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 26 Mar 2011 20:31:55 +0300 > From: Zvi Dubitzky <DUBI(a)il.ibm.com> > To: libvirt-users(a)redhat.com > Subject: Re: [libvirt-users] libvirt-users Digest, Vol 15, Issue 25 > Message-ID: > <OF433F2588.21ED2F16-ONC225785F.005EC3E4-C225785F.00605332(a)il.ibm.com> > Content-Type: text/plain; charset="US-ASCII" > > Sorry, let me rephrase the question again: > > I need define a user /password for sasl but want the authentication at > runtime > be automatic - no explicit promting the user while accessing a tcp socket > > with some applications that need authentication (e.g libvirt) > > I try : saslpasswd2 -c -p -a libvirt <user> > > and it hangs (if i now press Enter it says : "invalid parameter > supplied") . if I avoid the -p flag the above commad works fine and > prompts for password and later when using the tcp (virsh -c > qemu+tcp:...) it prompts for the above defined user/password and > autheticates ok. > > But I want without the explicit authentication > > > > The man pages says : > "-p Pipe mode - saslpasswd2 will neither prompt for the password nor > verify that it was entered correctly. This is the default when standard > input is not a terminal. " > > > > In the past (before upgrading of libvirt via rpm) I had the SASL > authentication done automatically without prompting the user at runtime > (virsh qemu+tcp:///system <command> ) and without need to configure that. > > Don't know how to restore it . > > Any help ? > > thanks > > Zvi Dubitzky > Email:dubi@il.ibm.com > > > > libvirt-users-bounces(a)redhat.com wrote on 26/03/2011 18:00:08: > > > From: libvirt-users-request(a)redhat.com > > To: libvirt-users(a)redhat.com > > Date: 26/03/2011 18:08 > > Subject: libvirt-users Digest, Vol 15, Issue 25 > > Sent by: libvirt-users-bounces(a)redhat.com > > > > Send libvirt-users mailing list submissions to > > libvirt-users(a)redhat.com > > > > To subscribe or unsubscribe via the World Wide Web, visit > > https://www.redhat.com/mailman/listinfo/libvirt-users > > or, via email, send a message with subject or body 'help' to > > libvirt-users-request(a)redhat.com > > > > You can reach the person managing the list at > > libvirt-users-owner(a)redhat.com > > > > When replying, please edit your Subject line so it is more specific > > than "Re: Contents of libvirt-users digest..." > > > > > > Today's Topics: > > > > 1. saslpasswd2 and virsh -c qemu+tcp:///system <command> > > (Zvi Dubitzky) > > > > > > ---------------------------------------------------------------------- > > > > Message: 1 > > Date: Sat, 26 Mar 2011 16:27:06 +0300 > > From: Zvi Dubitzky <DUBI(a)il.ibm.com> > > To: libvirt-users(a)redhat.com > > Subject: [libvirt-users] saslpasswd2 and virsh -c qemu+tcp:///system > > <command> > > Message-ID: > > <OF80114F71.6895179C-ONC225785F.00498EC8-C225785F.0049E967(a)il.ibm.com> > > Content-Type: text/plain; charset="US-ASCII" > > > > I need define a user /password for sasl but want that to do the > > verification > > automatically no -promting ( or even maybe avoid the verification) > while > > using a tcp socket with some applications that need authentication (e.g > > > libvirt) > > > > so I try : saslpasswd2 -c -p -a libvirt <user> > > > > and it hangs (if i now press Enter it says : "invalid parameter > > supplied") . if I avoid the -p flag the above commad works fine and > > prompts for password and later when using the tc p (virsh -c > > qemu+tcp:...) it prompts for the above defined user/password and > > autheticates ok . > > But I want without the prompting > > > > The man pages says > > -p Pipe mode - saslpasswd2 will neither prompt for the password nor > > verify that it was entered correctly. This is the default when standard > > input is not a terminal. > > > > In the past (before some upgrading of libvirt via rpm) the SASL > > authentication was done automatically no need for prompting > > Don't know how to restore it . > > > > Any help ? > > > > thanks > > > > Zvi Dubitzky > > Email:dubi@il.ibm.com > > > > > > > > > > ------------------------------ > > > > _______________________________________________ > > libvirt-users mailing list > > libvirt-users(a)redhat.com > > https://www.redhat.com/mailman/listinfo/libvirt-users > > > > End of libvirt-users Digest, Vol 15, Issue 25 > > ********************************************* > > > > ------------------------------ > > Message: 2 > Date: Sun, 27 Mar 2011 18:32:29 +0300 > From: Zvi Dubitzky <DUBI(a)il.ibm.com> > To: libvirt-users(a)redhat.com > Subject: [libvirt-users] virsh sechedinfo with libvirt-0.8.8 > Message-ID: > <OF06ABB03A.CFC8CAEA-ONC2257860.00546582-C2257860.00556403(a)il.ibm.com> > Content-Type: text/plain; charset="US-ASCII" > > I have fedora14 installed with standard libvirt-0.8.3. I can start VM > using .xml files and also run: virsh schedinfo. the cgroup CPU > controller is mounted and active . In fact I have the path to the Virtual > machine : /dev/cgroup/cpu/libvirt/qemu/<vm name > > > Now I upgraded to libvirt-0.8.8 from a tar ball ( configure , make , make > install) . I rebooted , new libvirtd started . virsh is working ok > (I can create a vm) except for the commands : schedinfo and memtune that > say upon ' virsh schedinfo <vm name>' > > Scheduler : Unknown > error: Requested operation is not valid: cgroup CPU controller is not > mounted > > Indeed I have the path : /dev/cgroup/cpu/libvirt/qemu/ but now without > the <vm_name> group which is not generated despite > that the VM was generated ok by virsh and I can access it > > Any idea what is missing or some config file needs a change ? > > thanks > > Zvi Dubitzky > Email:dubi@il.ibm.com > > > > > ------------------------------ > > _______________________________________________ > libvirt-users mailing list > libvirt-users(a)redhat.com > https://www.redhat.com/mailman/listinfo/libvirt-users > > End of libvirt-users Digest, Vol 15, Issue 26 > *********************************************

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[libvirt-users] virsh sechedinfo with libvirt-0.8.8
by Zvi Dubitzky 27 Mar '11

27 Mar '11

I have fedora14 installed with standard libvirt-0.8.3. I can start VM using .xml files and also run: virsh schedinfo. the cgroup CPU controller is mounted and active . In fact I have the path to the Virtual machine : /dev/cgroup/cpu/libvirt/qemu/<vm name > Now I upgraded to libvirt-0.8.8 from a tar ball ( configure , make , make install) . I rebooted , new libvirtd started . virsh is working ok (I can create a vm) except for the commands : schedinfo and memtune that say upon ' virsh schedinfo <vm name>' Scheduler : Unknown error: Requested operation is not valid: cgroup CPU controller is not mounted Indeed I have the path : /dev/cgroup/cpu/libvirt/qemu/ but now without the <vm_name> group which is not generated despite that the VM was generated ok by virsh and I can access it Any idea what is missing or some config file needs a change ? thanks Zvi Dubitzky Email:dubi@il.ibm.com

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Re: [libvirt-users] libvirt-users Digest, Vol 15, Issue 25
by Zvi Dubitzky 27 Mar '11

27 Mar '11

Sorry, let me rephrase the question again: I need define a user /password for sasl but want the authentication at runtime be automatic - no explicit promting the user while accessing a tcp socket with some applications that need authentication (e.g libvirt) I try : saslpasswd2 -c -p -a libvirt <user> and it hangs (if i now press Enter it says : "invalid parameter supplied") . if I avoid the -p flag the above commad works fine and prompts for password and later when using the tcp (virsh -c qemu+tcp:...) it prompts for the above defined user/password and autheticates ok. But I want without the explicit authentication The man pages says : "-p Pipe mode - saslpasswd2 will neither prompt for the password nor verify that it was entered correctly. This is the default when standard input is not a terminal. " In the past (before upgrading of libvirt via rpm) I had the SASL authentication done automatically without prompting the user at runtime (virsh qemu+tcp:///system <command> ) and without need to configure that. Don't know how to restore it . Any help ? thanks Zvi Dubitzky Email:dubi@il.ibm.com libvirt-users-bounces(a)redhat.com wrote on 26/03/2011 18:00:08: > From: libvirt-users-request(a)redhat.com > To: libvirt-users(a)redhat.com > Date: 26/03/2011 18:08 > Subject: libvirt-users Digest, Vol 15, Issue 25 > Sent by: libvirt-users-bounces(a)redhat.com > > Send libvirt-users mailing list submissions to > libvirt-users(a)redhat.com > > To subscribe or unsubscribe via the World Wide Web, visit > https://www.redhat.com/mailman/listinfo/libvirt-users > or, via email, send a message with subject or body 'help' to > libvirt-users-request(a)redhat.com > > You can reach the person managing the list at > libvirt-users-owner(a)redhat.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of libvirt-users digest..." > > > Today's Topics: > > 1. saslpasswd2 and virsh -c qemu+tcp:///system <command> > (Zvi Dubitzky) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sat, 26 Mar 2011 16:27:06 +0300 > From: Zvi Dubitzky <DUBI(a)il.ibm.com> > To: libvirt-users(a)redhat.com > Subject: [libvirt-users] saslpasswd2 and virsh -c qemu+tcp:///system > <command> > Message-ID: > <OF80114F71.6895179C-ONC225785F.00498EC8-C225785F.0049E967(a)il.ibm.com> > Content-Type: text/plain; charset="US-ASCII" > > I need define a user /password for sasl but want that to do the > verification > automatically no -promting ( or even maybe avoid the verification) while > using a tcp socket with some applications that need authentication (e.g > libvirt) > > so I try : saslpasswd2 -c -p -a libvirt <user> > > and it hangs (if i now press Enter it says : "invalid parameter > supplied") . if I avoid the -p flag the above commad works fine and > prompts for password and later when using the tc p (virsh -c > qemu+tcp:...) it prompts for the above defined user/password and > autheticates ok . > But I want without the prompting > > The man pages says > -p Pipe mode - saslpasswd2 will neither prompt for the password nor > verify that it was entered correctly. This is the default when standard > input is not a terminal. > > In the past (before some upgrading of libvirt via rpm) the SASL > authentication was done automatically no need for prompting > Don't know how to restore it . > > Any help ? > > thanks > > Zvi Dubitzky > Email:dubi@il.ibm.com > > > > > ------------------------------ > > _______________________________________________ > libvirt-users mailing list > libvirt-users(a)redhat.com > https://www.redhat.com/mailman/listinfo/libvirt-users > > End of libvirt-users Digest, Vol 15, Issue 25 > *********************************************

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[libvirt-users] saslpasswd2 and virsh -c qemu+tcp:///system <command>
by Zvi Dubitzky 26 Mar '11

26 Mar '11

I need define a user /password for sasl but want that to do the verification automatically no -promting ( or even maybe avoid the verification) while using a tcp socket with some applications that need authentication (e.g libvirt) so I try : saslpasswd2 -c -p -a libvirt <user> and it hangs (if i now press Enter it says : "invalid parameter supplied") . if I avoid the -p flag the above commad works fine and prompts for password and later when using the tc p (virsh -c qemu+tcp:...) it prompts for the above defined user/password and autheticates ok . But I want without the prompting The man pages says -p Pipe mode - saslpasswd2 will neither prompt for the password nor verify that it was entered correctly. This is the default when standard input is not a terminal. In the past (before some upgrading of libvirt via rpm) the SASL authentication was done automatically no need for prompting Don't know how to restore it . Any help ? thanks Zvi Dubitzky Email:dubi@il.ibm.com

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[libvirt-users] how to restart the network connection of kvm guest OS ?
by 何文聪 25 Mar '11

25 Mar '11

When a vm move from one VLAN(e.g. VLAN 1) to another VLAN (e.g. VLAN 2), it is needed to restart the network connection of guest OS, so that it can begin a dhcp discover and get a new ip again. But i can't find the way to restart the guest os's network connection by libvirt (neither python API nor virsh command). Is any other ways? PS: i found that the VirtualBox can detach the cable of VMs and re-attach so that the guest OS will recognize and restart a dhcp discover when the cable re-attach. I guess the KVM will have some feature like that , is anybody know something about that? thanks and looking forward to your answers.

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