Re: [libvirt] How to start a defined domain

 nope. "vm01" can be seen after I started it using "xm create vm01". But, if I shut it down using "xm shutdown vm01", it can't be seen using "virsh list --all" I assume that, "vm01" only have a xm config file stored in /etc/xen/, and libvirt or virsh need a XML style config file. So I can't start vm01 using "virsh start vm01" nor can I see it using "virsh list --all". Is it like this? Do correct me if I'm wrong :-)

2010-10-27 黄亮 发件人： Osier 发送时间： 2010-10-27 10:56:54 收件人： 黄亮 抄送： 主题： Re: [libvirt] How to start a defined domain ----- "黄亮" <lancerhuang(a)163.com&gt; wrote: >  > Oh, yeah, you're right, it's "make uninstall" :-) > > after uninstall 0.8.4 and reinstall 0.6.3, it still won't work. > > but one thing I should mention is that while using "virsh start vm01", > it reports the same error, saying can't find domain "vm01" with > "xenUnifiedDomainLookupByName ". > So I think maybe there is something I'm missing in define a domain. > > Would you give me some hints so I can see where I go wrong? Really > appreciated > ah, well, so let us check lower, can you see the guest "vm01" by "virsh list --all"? - Osier > > 2010-10-27 > > 黄亮 > > 发件人： Osier > 发送时间： 2010-10-26 22:29:40 > 收件人： 黄亮 > 抄送： libvir-list > 主题： Re: [libvirt] How to start a defined domain > > > > ----- "黄亮" <lancerhuang(a)163.com&gt; wrote: > > >  > > Well, after "make clean", I run the compiled start.c, still won't > > work. > > "make clean" won't uninstall the installed stuffs, use "make > uninstall" > instead, or you just made a typo? :-) > > after that, suggest re-installing 0.6.3 if you are not sure if it's > injured. > > - Osier > > > And I forget to metion, an error msg is shown: > > > > libvir: Xen error : Domain not found: xenUnifiedDomainLookupByName > > > > is that means I missed something? > > > > > > 2010-10-26 > > > > 黄亮 > > > > 发件人： Osier > > 发送时间： 2010-10-26 18:05:46 > > 收件人： 黄亮 > > 抄送： > > 主题： Re: [libvirt] How to start a defined domain > > > > > > > > ----- "黄亮" <lancerhuang(a)163.com&gt; wrote: > > > > >  > > > Accroding to your case, it seems I have no need to upgrade libvirt > > to > > > 0.8.4 > > > Will that work if I erase 0.8.4 using "make clean" and draw back > to > > > 0.6.3 ? > > > > yep, think so, if you don't need the new features, and 0.6.3 is > enough > > for your project requirement.. :-) > > > > - Osier > > > > > > > > > > > > 2010-10-26 > > > > > > 黄亮 > > > > > > 发件人： Osier > > > 发送时间： 2010-10-26 17:10:40 > > > 收件人： 黄亮 > > > 抄送： > > > 主题： Re: [libvirt] How to start a defined domain > > > > > > > > > > > > ----- "黄亮" <lancerhuang(a)163.com&gt; wrote: > > > > > > >  > > > > Thanks for your reply, Osier. > > > > > > > > > > > > The distro I'm using is CentOS release 5.5 (Final) > > > > > > > > I'm not quite sure about the version of libvirt. At first, it > > seems > > > to > > > > be 0.6.3, because /usr/lib64/libvirt.so.0 points to > > > > /usr/lib64/libvirt.so.0.6.3 > > > > Then I downloaded the src of libvirt_0.8.4 from offical website, > > and > > > > configure, make, make install. > > > > But now it show errors when I type "virsh". The error message > lies > > > > below: > > > > > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.8.2' not > > > found > > > > (required by virsh) > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.7.1' not > > > found > > > > (required by virsh) > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.7.5' not > > > found > > > > (required by virsh) > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.8.1' not > > > found > > > > (required by virsh) > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.7.0' not > > > found > > > > (required by virsh) > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.7.2' not > > > found > > > > (required by virsh) > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.7.3' not > > > found > > > > (required by virsh) > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.8.0' not > > > found > > > > (required by virsh) > > > > virsh: /usr/local/lib/libvirt.so.0: version > > `LIBVIRT_PRIVATE_0.8.4' > > > > not found (required by virsh) > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.7.7' not > > > found > > > > (required by virsh) > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.6.4' not > > > found > > > > (required by virsh) > > > > > > probly you should try to erase the 0.6.3, then compile and install > > > libvirt > > > like: > > > > > > # ./configure --prefix=/usr --libdir=/usr/lib64 > > > # make > > > # make install > > > > > > your test program has no problem on my box. the libvirt on my box > > also > > > is > > > 0.6.3. > > > > > > Regards > > > > > > - Osier > > > > > > > > As for xen, it is 3.3.2. The full "xm info" message is listed > > below: > > > > host : testbed01 > > > > release : 2.6.18-194.11.4.el5xen > > > > version : #1 SMP Tue Sep 21 05:40:24 EDT 2010 > > > > machine : x86_64 > > > > nr_cpus : 8 > > > > nr_nodes : 1 > > > > cores_per_socket : 4 > > > > threads_per_core : 2 > > > > cpu_mhz : 2793 > > > > hw_caps : > > > > > > > > > > bfebfbff:28100800:00000000:00000140:0098e3fd:00000000:00000001:00000000 > > > > virt_caps : hvm > > > > total_memory : 4055 > > > > free_memory : 533 > > > > node_to_cpu : node0:0-7 > > > > node_to_memory : node0:533 > > > > xen_major : 3 > > > > xen_minor : 3 > > > > xen_extra : .2 > > > > xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 > > > > hvm-3.0-x86_32p hvm-3.0-x86_64 > > > > xen_scheduler : credit > > > > xen_pagesize : 4096 > > > > platform_params : virt_start=0xffff800000000000 > > > > xen_changeset : unavailable > > > > cc_compiler : gcc version 4.1.2 20080704 (Red Hat 4.1.2-44) > > > > cc_compile_by : root > > > > cc_compile_domain : gitco.tld > > > > cc_compile_date : Tue Aug 18 21:07:28 CEST 2009 > > > > xend_config_format : 4 > > > > > > > > I've write a simple c program to test the api, and it is listed > > > below: > > > > > > > > 1 // This program aims to test the api which can start the VM > > > > 2 > > > > 3 #include "stdio.h" > > > > 4 #include "stdlib.h" > > > > 5 #include "libvirt/libvirt.h" > > > > 6 > > > > 7 int main(int argc ,char* argv[]) > > > > 8 { > > > > 9 virConnectPtr conn; > > > > 10 conn = virConnectOpen( "xen+tcp://localhost?no_Verify=1" ); > > > > 11 if( conn == NULL ) > > > > 12 { > > > > 13 printf( "Failed to Connect\n" ); > > > > 14 return 1; > > > > 15 } > > > > 16 const char* host = "vm01"; > > > > 17 virDomainPtr dom; > > > > 18 dom = virDomainLookupByName( conn, host ); > > > > 19 if( dom == NULL ) > > > > 20 { > > > > 21 printf( "can't find dom\n" ); > > > > 22 return 1; > > > > 23 } > > > > 24 // else > > > > 25 // { > > > > 26 // virDomainFree( dom ); > > > > 27 // virConnectClose( conn ); > > > > 28 // printf("done\n"); > > > > 29 // return 0; > > > > 30 // } > > > > 31 if( virDomainCreate( dom ) == -1 ) > > > > 32 { > > > > 33 printf( "failed to Start\n" ); > > > > 34 virDomainFree( dom ); > > > > 35 virConnectClose( conn ); > > > > 36 return 1; > > > > 37 } > > > > 38 else > > > > 39 { > > > > 40 printf( "Started\n" ); > > > > 41 virDomainFree( dom ); > > > > 42 virConnectClose( conn ); > > > > 43 return 0; > > > > 44 } > > > > 45 } > > > > > > > > 2010-10-26 > > > > > > > > Lancer > > > > > > > > 发件人： Osier > > > > 发送时间： 2010-10-26 11:35:31 > > > > 收件人： 黄亮 > > > > 抄送： libvir-list > > > > 主题： Re: [libvirt] How to start a defined domain > > > > > > > > > > > > > > > > ----- "黄亮" <lancerhuang(a)163.com&gt; wrote: > > > > > > > > > I've create a domain called "vm01" using Virt-Manager, the GUI > > > tool. > > > > > Now I wanna use libvirt api to control the life cycle of vm01. > > > > > It went on well with shutdown and reboot, but how to start it > > > became > > > > a > > > > > problem. > > > > > > > > > > I was intended to get the virDomainPtr by using > > > > virDomainLookupByName > > > > > api, and then start it using virDomainCreate api. > > > > > But it turns out that virDomainLookupByName api cannot return > a > > > > > virDomainPtr for a defined but not running domain. > > > > > > > > > > > > > no, it can :-) > > > > > > > > If it really doesn't work for you, could you write a simple > > program > > > to > > > > reproduce it? and try to explain what's the version of libvirt > you > > > > use, > > > > on which distro, etc, any helpful info is welcomed. :-) > > > > > > > > Thanks > > > > > > > > - Osier > > > > > > > > > That's my situation, what do you suggest I do now? > > > > > Thanks in advance. > > > > > > > > > > 2010-10-26 > > > > > > > > > > Lancer > > > > > -- > > > > > libvir-list mailing list > > > > > libvir-list(a)redhat.com > > > > > https://www.redhat.com/mailman/listinfo/libvir-list > > > > > > > > __________ Information from ESET Smart Security, version of > virus > > > > signature database 5562 (20101025) __________ > > > > > > > > The message was checked by ESET Smart Security. > > > > > > > > http://www.eset.com > > > > > > __________ Information from ESET Smart Security, version of virus > > > signature database 5562 (20101025) __________ > > > > > > The message was checked by ESET Smart Security. > > > > > > http://www.eset.com > > > > __________ Information from ESET Smart Security, version of virus > > signature database 5563 (20101026) __________ > > > > The message was checked by ESET Smart Security. > > > > http://www.eset.com > > __________ Information from ESET Smart Security, version of virus > signature database 5565 (20101026) __________ > > The message was checked by ESET Smart Security. > > http://www.eset.com __________ Information from ESET Smart Security, version of virus signature database 5566 (20101027) __________ The message was checked by ESET Smart Security. http://www.eset.com