Re: [libvirt-users] no connection driver available for No connection for URI xen:///

** On 03/16/2012 12:12 PM, Su Zhang wrote: Alex, I changed the symbolic link to "/usr/local/lib/libvirt.so.0.9.10". Here is the running script: [root@XenTester libvirt-0.9.10]# rm /usr/lib64/libvirt.so.0 rm: remove symbolic link `/usr/lib64/libvirt.so.0'? yes [root@XenTester libvirt-0.9.10]# ln -s /usr/local/lib/libvirt.so.0.9.10 /usr/lib64/libvirt.so.0 It's not enough, you had better to clean up your dirty libvirt environment, for example, remove all of libvirt rpm package on host, then recompile libvirt and ./configure --prefix=/usr && make && make install, or ./autogen --system && make && make install.

I run "strace -o strace.txt virt-install --connect=xen:/// -p" once again, and the following error came out: ERROR Error in network device parameters: Virtual network 'default' does not exist: this function is not supported by the connection driver: virNetworkLookupByName the strace.txt is attached. I think current xen URI works well for you, and you may try virt-install --connect=xen:/// -p -d or virt-install -p -d to confirm this. The above error is another issues, you need to change others stuff, it's not enough to just link /usr/local/lib/libvirt.so.0.9.10 /usr/lib64/libvirt.so.0, please follow answer 1. Are there any other places I need to change in order to let the system know I am running libvirt.so.0.9.10? Thanks, On Thu, Mar 15, 2012 at 10:54 PM, Su Zhang <westlifezs(a)gmail.com&gt; wrote: > Here it is: > > # ll /usr/lib64/libvirt.so.0 > lrwxrwxrwx. 1 root root 16 Mar 12 21:19 /usr/lib64/libvirt.so.0 -> > libvirt.so.0.9.4 > > So you meant that I used a wrong libvirt.so? How can I correct this? > > > On Thu, Mar 15, 2012 at 10:52 PM, Alex Jia <ajia(a)redhat.com&gt; wrote: > >> On 03/16/2012 11:41 AM, Su Zhang wrote: >> >> >> >> On Thu, Mar 15, 2012 at 10:20 PM, Alex Jia <ajia(a)redhat.com&gt; wrote: >> >>> On 03/16/2012 11:02 AM, Su Zhang wrote: >>> >>> >>> >>> On Thu, Mar 15, 2012 at 9:45 PM, Alex Jia <ajia(a)redhat.com&gt; wrote: >>> >>>> On 03/16/2012 05:33 AM, Su Zhang wrote: >>>> >>>> >>>> >>>> On Thu, Mar 15, 2012 at 4:20 PM, Eric Blake <eblake(a)redhat.com&gt; wrote: >>>> >>>>> On 03/15/2012 02:57 PM, Su Zhang wrote: >>>>> > Hi all, >>>>> > >>>>> > I am trying to use virt-install to install domU image. However, I >>>>> > encountered the following issue. It seems that a connection driver >>>>> is >>>>> > needed for Xen. >>>>> > I am new to both libvirt and Xen. Anyone have any ideas on what's >>>>> wrong >>>>> > with the following error ? >>>>> > >>>>> > >>>>> > >>>>> > # virt-install --connect=xen:/// -p -d >>>>> > Thu, 15 Mar 2012 10:17:55 DEBUG Launched with command line: >>>>> > /usr/bin/virt-install --connect=xen:/// -p -d >>>>> > Thu, 15 Mar 2012 10:17:55 DEBUG Requesting libvirt URI xen:/// >>>>> > Thu, 15 Mar 2012 10:17:55 ERROR no connection driver available >>>>> for No >>>>> > connection for URI xen:/// >>>>> >>>>> This probably means that your copy of libvirt.so and libvirtd was >>>>> built >>>>> without xen support. What does >>>>> >>>>> virsh --version=long >>>>> >>>>> say? Also, are you sure libvirtd is running? >>>>> >>>> In addition, I want to know your libvirt.so, libvirtd, xend >>>> location, for example, >>>> # which libvirtd >>>> # which xend >>>> # locate libvirt.so >>>> >>>> Please also make sure xend service is running: >>>> # service xend status >>>> >>>> >>>>> -- >>>>> Eric Blake eblake(a)redhat.com +1-919-301-3266 >>>>> Libvirt virtualization library http://libvirt.org >>>>> >>>>> >>>> Eric, >>>> >>>> Here is the output: >>>> # virsh --version=long >>>> Virsh command line tool of libvirt 0.9.10 >>>> See web site at http://libvirt.org/ >>>> >>>> Compiled with support for: >>>> Hypervisors: Xen QEmu/KVM UML OpenVZ VirtualBox LXC Test >>>> Networking: Remote Daemon Network Bridging Nwfilter VirtualPort >>>> Storage: Dir Filesystem SCSI Multipath iSCSI LVM >>>> Miscellaneous: SELinux Secrets Debug >>>> >>>> It seems that it does support Xen. >>>> >>>> Yeah, Xen indeed appears in Hypervisors line. >>>> >>>> >>>> I am not sure if libvirtd is running so I use the following command to >>>> start it: >>>> >>>> [root@XenTester srv]# /etc/rc.d/init.d/libvirtd start >>>> >>>> Right, you may also use service libvirtd start, and check it by >>>> service libvirtd status or ps -ef|grep libvirtd. >>>> >>>> >>>> But the same error is still there. >>>> >>>> Am I using the right way to start libvirtd service? Are there any >>>> other possible reasons of this error? >>>> >>>> >>>> Thanks, >>>> >>>> -- >>>> Su Zhang >>>> Ph.D Candidate >>>> Computing and Information Sciences >>>> Kansas State University >>>> >>>> >>>> _______________________________________________ >>>> libvirt-users mailing listlibvirt-users@redhat.comhttps://www.redhat.com/mailman/listinfo/libvirt-users >>>> >>>> >>>> Alex, >>> >>> Here is some information: >>> >>> # /etc/init.d/xencommons start >>> Starting xenstored... >>> Setting domain 0 name... >>> Starting xenconsoled... >>> [root@XenTester su]# /etc/init.d/xend start >>> [root@XenTester su]# which libvirtd >>> /usr/local/sbin/libvirtd >>> [root@XenTester su]# which xend >>> /usr/sbin/xend >>> [root@XenTester su]# locate libvirt.so >>> /usr/lib64/libvirt.so.0 >>> /usr/lib64/libvirt.so.0.9.4 >>> /usr/local/lib/libvirt.so >>> /usr/local/lib/libvirt.so.0 >>> /usr/local/lib/libvirt.so.0.9.10 >>> >>> You have 2 different libvirt versions 0.9.4 and 0.9.10, and your >>> 0.9.10 is put under the >>> /usr/local/lib directory, so I guess you haven't used ./configure with >>> --prefix=/usr option >>> or directly use ./autogen.sh --system when you configure and compile >>> libvirt. >>> >>> And also please yum install strace -y if you haven't installed strace >>> rpm, then run the following operation: >>> >>> # strace -o strace.txt virt-install --connect=xen:/// -p >>> >>> Then attach strace.txt as a attachment. >>> >>> Thanks, >>> Alex >>> >>> >> Alex, >> >> Thanks. I have run ./autogen.sh --system. And "make" and "make install" >> the libvirt once again. >> I encountered one type of errors while running "make install", it seems >> that the installer is looking for a bunch of HTML files under >> /usr/bin/install. here is the error info: >> >> /usr/bin/install: cannot stat `./api.html': No such file or directory >> /usr/bin/install: cannot stat `./api_extension.html': No such file or >> directory >> /usr/bin/install: cannot stat `./apps.html': No such file or directory >> /usr/bin/install: cannot stat `./archdomain.html': No such file or >> directory >> /usr/bin/install: cannot stat `./architecture.html': No such file or >> directory >> /usr/bin/install: cannot stat `./archnetwork.html': No such file or >> directory >> /usr/bin/install: cannot stat `./archnode.html': No such file or >> directory >> (there are still tens of HTML files missing) >> .... >> >> It's not important for our issues. >> >> >> Do you think this type of errors will affect the functionality of >> libvirt? >> Also, I checked and it seems that I've the latest strace package >> installed. So I run "strace -o strace.txt virt-install --connect=xen:/// >> -p". >> Please find strace.txt attached. >> >> I saw virt-install is opening /usr/lib64/libvirt.so.0 in strace.txt: >> >> open("/usr/lib64/libvirt.so.0", O_RDONLY) = 7 >> >> >> I want to confirm whether you're using compiling libvirt 0.9.10, >> ll /usr/lib64/libvirt.so.0 say what? >> >> Thanks, >> Alex >> >> >> Thanks, >> >>> [root@XenTester su]# service xend status >>> [root@XenTester su]# ps -ef|grep libvirtd >>> root 2242 1 0 21:52 ? 00:00:00 libvirtd --daemon >>> root 3295 3112 0 21:59 pts/0 00:00:00 grep libvirtd >>> >>> Can you see if it is normal here? >>> >>> Thanks, >>> >>> >>> -- >>> Su Zhang >>> Ph.D Candidate >>> Computing and Information Sciences >>> Kansas State University >>> >>> >>> >> >> >> -- >> Su Zhang >> Ph.D Candidate >> Computing and Information Sciences >> Kansas State University >> >> >> > > > -- > Su Zhang > Ph.D Candidate > Computing and Information Sciences > Kansas State University > -- Su Zhang Ph.D Candidate Computing and Information Sciences Kansas State University