virt

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2 participants
1612 discussions

qemu 0.9.0 in c5-testing
by Daniel de Kok 08 Sep '07

08 Sep '07

Hi all, A package for the qemu machine emulator/virtualizer is now available in CentOS testing for CentOS 5. qemu was added - Because the package contains qemu-img, a handy tool for creating and converting disk images (e.g. for KVM). - For full virtualization on i386 and x86_64 CPUs that don't have VT-X or AMD-V support. kqemu is required for optimal performance, we plan to provide a module package for kqemu in the near future. For the moment, testing can be oriented at using this (qemu-img in particular) in combination with KVM. Once the kqemu module packages are ready, we are also interested in qemu + kqemu testing results. Information on using the CentOS Testing repository can be found on the CentOS Wiki at: http://wiki.centos.org/Repositories Take care, Daniel

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(long) kvm and virt-manager not ready for daily usage
by Farkas Levente 08 Sep '07

08 Sep '07

hi, in the last 2 weeks we play a lot with our new server which we but to a our virtual server for the development and collect some very subjective experience. we use kvm and virt-manager, but sometimes i'm not really sure about the whether it's kvm or virt-manager problem so i collect them together. our system: MB: Intel S3000AHV CPU: Intel Core 2 Quad CPU Q6600 @ 2.40GHz RAM: 8GB CentOS 5 x86-64 host system with: kernel-2.6.18-8.1.8.el5 kmod-kvm-35-1.2.6.18_8.1.8.el5 kvm-35-1 libvirt-0.3.2-2 libvirt-python-0.3.2-2 python-virtinst-0.300.0-1 virt-manager-0.5.0-1 virt-top-0.3.2.5-1 virt-viewer-0.0.2-1 kvm is not ready for production use for many reason: it can't reboot which imho a very basic feature, what's more can't even shutdown/poweroff. the centos i386 guest are not able to shutdown on the x86_64 host (strange the x86_64 centos and the i586 mandrake-9 are able to shutdown) or what's seems to be more likely it's a random think. can't give 2GB ram to any guests not even 2, but 1.9999 is ok. what's more i've to discover this in the hard way virt-manager gives some strange error message (anyway none of the virt-manager's error message are useful, just strange stack trace without any kind of useful info). the host see as i've 4 cpu. i've got a change to gives more cpu to the guest, what's more they starts, but after a few minutes running the system crash. not just the guest os but the host os crash without any kind of info, log or any useful info what was the cause of it, but hard reset helps:-((( first of all it's serious problem, even if it's a known bug and documented somewhere (but there is not any kind of docs about neither kvm nor virt-manager/libvirt and what i can find that very limited), since all of the new hvm cpu (which is required for kvm) has more core, so the guest can't use the real power of the cpu this means i've to put a lots of guests with one virtual cpu to the host or currently can't exploit these cpus. libvirt not start the guest when the host started, not saved the state of the guests when stopped, when restarted all guest get into shutdown state. may be it's just libvirt but, but if kvm not able to save it's guest's state that it's a real pain. this behavior not acceptable in a real environment. in virt-manager can't modify virtual cpu number of the guests (virt-manager crash with another unusable stacks trace). it i modify the xml config file by hand i've to restart libvirt in order to read it. even if i just modify one guest's config, but as if i restart libvirtd the all other guest will be killed it's another nice feature. from vit-manager i can't assign swap partitions (and any other device to the guests) during guest creation. i precreate lvm partition on the host for root and swap to all of our guests (about 10) but it's a real pain to reload libvirtd (which kills all guests) to add a new disk to the guest which can be used as a swap or other partition. what's more it'd be useful to add swap partition during install. the same thing apply to cdrom too. if i made a mistake in the libvirtd xml config file, then i don't get any kind of error message just libvirt don't start the given guest. no error message service seems to start without error and don't know what was the reason that the guest not start (sometimes because syntactic error in the config file, sometimes kvm/qemu not support it eg more then 2gb mem). there are unwritten unix/linux tradition eg if there are error during a service startup report it some log file. if a service can't start without error then it not start at all eg. if i've apache with 5 virtual host but one of it's config has error then the whole httpd not started. it'd have to be the same with libvirt too. libvirt config file has all the features as qemu command line (if not it can't be used by advanced users)? but i don't know since there is not a reference docs for the config file. there is not a detailed reference docs about libvirtd config (and at the same time the gui not contains all the settings). for the the xml format is a bit redundant eg. "source dev", "target dev" why not just source and target, inside interface type='bridge' 'source bridge' why not just source (i've to modify two place when i'd like to switch from network to bride. ok these are just small cosmetic thing just mention. when create a new guest in virt-manager and reach the last page and press finish then most of the time (2 times from 3) i've got an error something like "can't connect to qemu" after i press ok and press again finish then it's able to create the new host (so always have to retry it). in virt-manager when a guest is shutdown and double-click on the guest and try to start it it's not possible. you've to select the guest in the main windows, right-click and start it. the new vnc based console is very unstable or just virt-manager not able to connect it. many times i double click on a guest in virt-manager i got the window can't connect to console while the guest are running. that's why i like to see again the serial console. we've got other virtual servers with xen and openvz, with has other problems but works. my conclusion is that currently kvm, libvirtd, virt-manager (et-mgmt-tools) seems very promising. but currently just in a very alpha stage using even in non mission critical but production environment still a very 'brave' decision. xen has a few years vantage, but it's at least usable in real environment. i'm on the these list and see what kind of problem you're working which is great but at the same it'd be useful to fix the most basic problems with these tools. just my 2c to these community. -- Levente "Si vis pacem para bellum!"

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virt-factory investigation
by Hristo Benev 07 Sep '07

07 Sep '07

Version 0.0.4 is out, but unfortunately unly for F7 According to: https://www.redhat.com/archives/et-mgmt-tools/2007-September/msg00040.html EL5 will be soon available. All depends on busrpc(AMQP) package - available only in f7 for now. So we need to wait even more.... ----------------------------------------------------------------- ЕЛА и направи свой сайт, намери нови приятели! WWW.ZOOM.BG

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virt-factory investigation (Server setup)
by Hristo Benev 07 Sep '07

07 Sep '07

Hi, I was trying to get virt-factory on my CentOS 5. First I set up virt-factory repo (with fc6 packages). Then following installation documentation I've typed: ------------------------------------------ yum install virt-factory-server ------------------------------------------- Wich returned: ----------------------------------------------------------- Error: Missing Dependency: puppet-server >= 0.23 is needed by package virt-factory-server ----------------------------------------------------------- Searching arround: -------------------------------------------------------- yum list puppet-server Loading "priorities" plugin Loading "fastestmirror" plugin Loading "installonlyn" plugin Setting up repositories Loading mirror speeds from cached hostfile Reading repository metadata in from local files 0 packages excluded due to repository priority protections Available Packages puppet-server.i386 0.22.4-1.el5.rf rpmforge Appropriate version was found in FC6 extras Need to install first puppet: http://fedora.mirror.iweb.ca/extras/6/i386/puppet-0.23.2-1.fc6.noarch.rpm Wich required: ------------------------------------- Adding for dependencies: facter-1.3.7-1.el5.rf ruby-1.8.5-5.el5 ruby-libs-1.8.5-5.el5 -------------------------------------- And installed: http://fedora.mirror.iweb.ca/extras/6/i386/puppet-server-0.23.2-1.fc6.noarc… after Finally: ------------------------------------------- Dependencies Resolved ============================================================================= Package Arch Version Repository Size ============================================================================= Installing: virt-factory-server noarch 0.0.3-3 virt-factory-fedora 164 k Installing for dependencies: cobbler noarch 0.5.0-1.el5.rf rpmforge 330 k createrepo noarch 0.4.8-1.el5.rf rpmforge 55 k koan noarch 0.5.0-1.el5.rf rpmforge 50 k mod_python i386 3.2.8-3.1 base 257 k postgresql i386 8.1.9-1.el5 updates 2.8 M postgresql-server i386 8.1.9-1.el5 updates 4.0 M python-cheetah i386 2.0-0.1.rc8.el5.rf rpmforge 423 k python-migrate noarch 0.2.2-1 virt-factory-fedora 85 k python-psycopg2 i386 2.0.4-1.el5.rf rpmforge 259 k python-sqlalchemy noarch 0.3.4-1.el5.rf rpmforge 1.0 M python-sqlite2 i386 2.3.3-1.el5.rf rpmforge 119 k tftp-server i386 0.42-3.1.el5.centos base 27 k xinetd i386 2:2.3.14-10.el5 base 124 k yum-metadata-parser i386 1.0-8.fc6 base 22 k Transaction Summary ============================================================================= Install 15 Package(s) Update 0 Package(s) Remove 0 Package(s) Total download size: 9.7 M ------------------------------------------------------------------------ Note that currently only posgeqsl is supproted as database I do not use PGrs so I ran: -------------------------- vf_fix_db_auth ------------------------- To initialize DB. This finalizes Server installation. ----------------------------------------------------------------- ЕЛА и направи свой сайт, намери нови приятели! WWW.ZOOM.BG

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Re: virt-factory investigation (Server settings)
by Hristo Benev 04 Sep '07

04 Sep '07

Just followup on the problem. I asked in IRC channel and they told me that next version 0.0.4 will be released in a week and it will be better to wait. ----------------------------------------------------------------- ЕЛА и направи свой сайт, намери нови приятели! WWW.ZOOM.BG

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Re: virt-factory investigation (Server settings)
by Hristo Benev 04 Sep '07

04 Sep '07

I assume that I also need to configure server In /etc/virt-factory/settings ----------------------- databases: primary: "postgres://virtfactory:%(password)s@localhost/virtfactory" -------------------------- I do not know PG is this line correct? ----------------------------------------------------------------- ЕЛА и направи свой сайт, намери нови приятели! WWW.ZOOM.BG

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virt-factory investigation (Server settings)
by Hristo Benev 04 Sep '07

04 Sep '07

Hi, Next step is setting up mirrors fo virtual guest deployment This requires editing: ---------------------------- /etc/virt-factory/settings ---------------------------- This time I'll use FC6 mirrors to test product functionality. When editing this file setup local IP (not localhost) of the server. Next step is to start management server: -------------------------------------------- /etc/init.d/puppetmaster start Starting puppetmaster: [ OK ] -------------------------------------------- puppetmaster, apache, and virt-factory services could be set-up to start with the machine Then start the service: vf_server import Unfortunately I've recived error ----------------------------------------- vf_server import ***** CONFIG RELOAD ***** Traceback (most recent call last): File "/usr/bin/vf_server", line 12, in ? server.main(sys.argv) File "/usr/lib/python2.4/site-packages/virt-factory/server/server.py", line 185, in main websvc = XmlRpcInterface() File "/usr/lib/python2.4/site-packages/virt-factory/server/server.py", line 72, in __init__ Database(url) File "/usr/lib/python2.4/site-packages/virt-factory/server/db.py", line 346, in __init__ global_connect(interpolate_url_password(url), echo=False) File "/usr/lib/python2.4/site-packages/virt-factory/server/db.py", line 317, in interpolate_url_password pwfile = open("/etc/virt-factory/db/dbaccess") IOError: [Errno 2] No such file or directory: '/etc/virt-factory/db/dbaccess' ------------------------------------------------------ Any ideas what it could be? ----------------------------------------------------------------- ЕЛА и направи свой сайт, намери нови приятели! WWW.ZOOM.BG

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Virtual Box: br0 not resolving: No DHCPOFFERS
by Todd and Margo Chester 04 Sep '07

04 Sep '07

Dear Centos-Virt: Help! Guest=XP Pro, SP2 Host=CentOS5; # uname -r; 2.6.18-8.1.8.el5 VirtualBox-1.4.0_21864_rhel5-1.i586 http://www.virtualbox.org/download/1.5.0/VirtualBox-1.5.0_24069_rhel5-1.i58… I have two nic: eth0 is the internal network; eth1 connects to a DSL modem. I also have a fully functioning DHCP server on eth0 (works perfectly with Parallels for Linux). The directions (from hell): http://www.virtualbox.org/download/UserManual.pdf I am trying to set up a "host interface" network between my XP guest and my Linux host. Three problems: 1) "br0" does not resolve with my DHCP server: "No DHCPOFFERS received" 2) Virtual Box will not start, unless I switch to no network or NAT network 3) eth1 will not communicate with the Internet after restarting the network daemon to try to bet an address for br0 Following the directions on page 62 for Fedora Core in the users manual do not work (or I am doing them wrong): 1) # chmod 0666 /dev/net/tun 2) /etc/sysconfig/network-scripts/ifcfg-br0: DEVICE=br0 TYPE=Bridge BOOTPROTO=dhcp ONBOOT=yes 3) /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE=eth0 TYPE=Ethernet BOOTPROTO=static BROADCAST=192.168.255.255 IPADDR=192.168.255.10 NETMASK=255.255.255.0 NETWORK=192.168.255.0 GATEWAY=192.168.255.10 IPV6ADDR= IPV6PREFIX= ONBOOT=yes USERCTL=yes IPV6INIT=no PEERDNS=no BRIDGE=br0 4)# sudo /sbin/service network restart br0 failed: FAILED, unable to resolve IP address. From my /var/log/messages: dhcpd: DHCPOFFER on 192.168.255.198 to 00:30:48:78:8e:92 via eth0 dhclient: DHCPDISCOVER on br0 to 255.255.255.255 port 67 interval 7 DHCPDISCOVER from 00:30:48:78:8e:92 via eth0 dhcpd: DHCPOFFER on 192.168.255.198 to 00:30:48:78:8e:92 via eth0 dhclient: No DHCPOFFERS received. 5) #sudo VBoxAddIF vbox0 todd br0 Note: also tried it with user=root (did a VBoxDeleteIF first): no symptom change 6) In VirtualBox settings, set "network adaptors" to "Host Interface" and set “Interface name” to “vbox0” 7) started VB and got the same fail DHCP offcer as in step 4. VB refused to start. 8) at this point eth1 STOPS communicating with the DSL modem and the Internet (I have to comment out the "br" in eth0's config, restart the network daemon, and restart the firewall to get the Internet back.) Help! Many thanks, -T p.s. This is this is my full messages log when I restart networking (note the message at the end): #/etc/rc.d/init.d/network restart Aug 31 21:14:40 rn1 avahi-daemon[3207]: Withdrawing address record for fe80::230:48ff:fe78:8e92 on br0. Aug 31 21:14:40 rn1 avahi-daemon[3207]: Leaving mDNS multicast group on interface br0.IPv6 with address fe80::230:48ff:fe78:8e92. Aug 31 21:14:40 rn1 avahi-daemon[3207]: iface.c: interface_mdns_mcast_join() called but no local address available. Aug 31 21:14:40 rn1 avahi-daemon[3207]: Interface br0.IPv6 no longer relevant for mDNS. Aug 31 21:14:40 rn1 kernel: br0: port 1(eth0) entering disabled state Aug 31 21:14:40 rn1 kernel: br0: port 2(vbox0) entering disabled state Aug 31 21:14:40 rn1 avahi-daemon[3207]: Interface eth0.IPv6 no longer relevant for mDNS. Aug 31 21:14:40 rn1 avahi-daemon[3207]: Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::230:48ff:fe78:8e92. Aug 31 21:14:40 rn1 avahi-daemon[3207]: Interface eth0.IPv4 no longer relevant for mDNS. Aug 31 21:14:40 rn1 avahi-daemon[3207]: Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.255.10. Aug 31 21:14:40 rn1 dhcpd: receive_packet failed on eth0: Network is down Aug 31 21:14:40 rn1 avahi-daemon[3207]: Withdrawing address record for fe80::230:48ff:fe78:8e92 on eth0. Aug 31 21:14:40 rn1 avahi-daemon[3207]: Withdrawing address record for 192.168.255.10 on eth0. Aug 31 21:14:40 rn1 kernel: device eth0 left promiscuous mode Aug 31 21:14:40 rn1 kernel: br0: port 1(eth0) entering disabled state Aug 31 21:14:40 rn1 avahi-daemon[3207]: Withdrawing address record for 192.168.1.47 on eth1. Aug 31 21:14:40 rn1 avahi-daemon[3207]: Leaving mDNS multicast group on interface eth1.IPv4 with address 192.168.1.47. Aug 31 21:14:40 rn1 avahi-daemon[3207]: iface.c: interface_mdns_mcast_join() called but no local address available. Aug 31 21:14:40 rn1 avahi-daemon[3207]: Interface eth1.IPv4 no longer relevant for mDNS. Aug 31 21:14:40 rn1 avahi-daemon[3207]: Withdrawing address record for fe80::230:48ff:fe78:8e93 on eth1. Aug 31 21:14:40 rn1 avahi-daemon[3207]: Leaving mDNS multicast group on interface eth1.IPv6 with address fe80::230:48ff:fe78:8e93. Aug 31 21:14:40 rn1 avahi-daemon[3207]: iface.c: interface_mdns_mcast_join() called but no local address available. Aug 31 21:14:40 rn1 avahi-daemon[3207]: Interface eth1.IPv6 no longer relevant for mDNS. Aug 31 21:14:40 rn1 dhcpd: receive_packet failed on eth1: Network is down Aug 31 21:14:41 rn1 kernel: ADDRCONF(NETDEV_UP): eth0: link is not ready Aug 31 21:14:41 rn1 kernel: device eth0 entered promiscuous mode Aug 31 21:14:41 rn1 kernel: ADDRCONF(NETDEV_UP): eth1: link is not ready Aug 31 21:14:42 rn1 kernel: e1000: eth1: e1000_watchdog_task: NIC Link is Up 100 Mbps Full Duplex Aug 31 21:14:42 rn1 kernel: e1000: eth1: e1000_watchdog_task: 10/100 speed: disabling TSO Aug 31 21:14:42 rn1 kernel: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready Aug 31 21:14:42 rn1 kernel: e1000: eth0: e1000_watchdog_task: NIC Link is Up 100 Mbps Full Duplex Aug 31 21:14:42 rn1 kernel: e1000: eth0: e1000_watchdog_task: 10/100 speed: disabling TSO Aug 31 21:14:42 rn1 dhclient: DHCPREQUEST on eth1 to 255.255.255.255 port 67 Aug 31 21:14:42 rn1 dhcpd: DHCPREQUEST for 192.168.1.47 from 00:30:48:78:8e:93 via eth1: unknown lease 192.168.1.47. Aug 31 21:14:42 rn1 dhclient: DHCPACK from 192.168.1.1 Aug 31 21:14:42 rn1 avahi-daemon[3207]: New relevant interface eth1.IPv4 for mDNS. Aug 31 21:14:42 rn1 avahi-daemon[3207]: Joining mDNS multicast group on interface eth1.IPv4 with address 192.168.1.47. Aug 31 21:14:42 rn1 kernel: dsl-out Everything Else IN= OUT=eth1 SRC=192.168.1.47 DST=224.0.0.22 LEN=40 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 Aug 31 21:14:42 rn1 avahi-daemon[3207]: Registering new address record for 192.168.1.47 on eth1. Aug 31 21:14:42 rn1 avahi-daemon[3207]: Withdrawing address record for 192.168.1.47 on eth1. Aug 31 21:14:42 rn1 avahi-daemon[3207]: Leaving mDNS multicast group on interface eth1.IPv4 with address 192.168.1.47. Aug 31 21:14:42 rn1 kernel: dsl-out Everything Else IN= OUT=eth1 SRC=192.168.1.47 DST=224.0.0.22 LEN=40 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 Aug 31 21:14:42 rn1 avahi-daemon[3207]: iface.c: interface_mdns_mcast_join() called but no local address available. Aug 31 21:14:42 rn1 avahi-daemon[3207]: Interface eth1.IPv4 no longer relevant for mDNS. Aug 31 21:14:42 rn1 avahi-daemon[3207]: New relevant interface eth1.IPv4 for mDNS. Aug 31 21:14:42 rn1 avahi-daemon[3207]: Joining mDNS multicast group on interface eth1.IPv4 with address 192.168.1.47. Aug 31 21:14:42 rn1 kernel: dsl-out Everything Else IN= OUT=eth1 SRC=192.168.1.47 DST=224.0.0.22 LEN=40 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 Aug 31 21:14:42 rn1 avahi-daemon[3207]: Registering new address record for 192.168.1.47 on eth1. Aug 31 21:14:42 rn1 dhclient: bound to 192.168.1.47 -- renewal in 38661 seconds. Aug 31 21:14:42 rn1 kernel: br0: port 1(eth0) entering learning state Aug 31 21:14:42 rn1 kernel: br0: port 2(vbox0) entering learning state Aug 31 21:14:43 rn1 dhclient: DHCPDISCOVER on br0 to 255.255.255.255 port 67 interval 4 Aug 31 21:14:43 rn1 kernel: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready Aug 31 21:14:44 rn1 avahi-daemon[3207]: New relevant interface eth1.IPv6 for mDNS. Aug 31 21:14:44 rn1 avahi-daemon[3207]: Joining mDNS multicast group on interface eth1.IPv6 with address fe80::230:48ff:fe78:8e93. Aug 31 21:14:44 rn1 avahi-daemon[3207]: Registering new address record for fe80::230:48ff:fe78:8e93 on eth1. Aug 31 21:14:44 rn1 avahi-daemon[3207]: New relevant interface br0.IPv6 for mDNS. Aug 31 21:14:44 rn1 avahi-daemon[3207]: Joining mDNS multicast group on interface br0.IPv6 with address fe80::230:48ff:fe78:8e92. Aug 31 21:14:44 rn1 avahi-daemon[3207]: Registering new address record for fe80::230:48ff:fe78:8e92 on br0. Aug 31 21:14:45 rn1 avahi-daemon[3207]: New relevant interface eth0.IPv6 for mDNS. Aug 31 21:14:45 rn1 avahi-daemon[3207]: Joining mDNS multicast group on interface eth0.IPv6 with address fe80::230:48ff:fe78:8e92. Aug 31 21:14:45 rn1 avahi-daemon[3207]: Registering new address record for fe80::230:48ff:fe78:8e92 on eth0. Aug 31 21:14:47 rn1 dhclient: DHCPDISCOVER on br0 to 255.255.255.255 port 67 interval 8 Aug 31 21:14:50 rn1 kernel: dsl-out Everything Else IN= OUT=eth1 SRC=192.168.1.47 DST=224.0.0.22 LEN=40 TOS=0x00 PREC=0xC0 TTL=1 ID=0 DF PROTO=2 Aug 31 21:14:55 rn1 dhclient: DHCPDISCOVER on br0 to 255.255.255.255 port 67 interval 14 Aug 31 21:14:57 rn1 kernel: br0: topology change detected, propagating Aug 31 21:14:57 rn1 kernel: br0: port 1(eth0) entering forwarding state Aug 31 21:14:57 rn1 kernel: br0: topology change detected, propagating Aug 31 21:14:57 rn1 kernel: br0: port 2(vbox0) entering forwarding state Aug 31 21:15:09 rn1 dhclient: DHCPDISCOVER on br0 to 255.255.255.255 port 67 interval 15 Aug 31 21:15:09 rn1 dhcpd: DHCPDISCOVER from 00:30:48:78:8e:92 via eth0 Aug 31 21:15:10 rn1 dhcpd: DHCPOFFER on 192.168.255.198 to 00:30:48:78:8e:92 via eth0 Aug 31 21:15:24 rn1 dhclient: DHCPDISCOVER on br0 to 255.255.255.255 port 67 interval 8 Aug 31 21:15:24 rn1 dhcpd: DHCPDISCOVER from 00:30:48:78:8e:92 via eth0 Aug 31 21:15:24 rn1 dhcpd: DHCPOFFER on 192.168.255.198 to 00:30:48:78:8e:92 via eth0 Aug 31 21:15:32 rn1 dhclient: DHCPDISCOVER on br0 to 255.255.255.255 port 67 interval 12 Aug 31 21:15:32 rn1 dhcpd: DHCPDISCOVER from 00:30:48:78:8e:92 via eth0 Aug 31 21:15:32 rn1 dhcpd: DHCPOFFER on 192.168.255.198 to 00:30:48:78:8e:92 via eth0 Aug 31 21:15:44 rn1 dhclient: No DHCPOFFERS received.

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Re: [kvm-devel] kvm guests are not able to restart
by Farkas Levente 03 Sep '07

03 Sep '07

Luca wrote: > On 9/3/07, Farkas Levente <lfarkas(a)bppiac.hu> wrote: >> hi, >> i've got a centos-5 x86_64 kvm-35 host system with one centos-5 i386 and >> one x86_64 guests. but none of the guest are able to restart. ie. i >> login to the guests and restart it. it start's as normal reboot, but >> after the last command (shuting down md device) it's do nothing, but in >> virt-manager i see 50% load on the guest. the biggest problem currently >> i can't find any way to restart any guest's other then shutdown and use >> virt-manager and restart them:-( >> what can be a problem? is it a known bug or it's just not working for me? > > It's known, but ATM there's no fix available. For more details see: > http://thread.gmane.org/gmane.comp.emulators.kvm.devel/5651/focus=6003 > and following mails. is this really true? this means kvm are not usable any real environment since imho the feature to be able to reboot a server is essential! -- Levente "Si vis pacem para bellum!"

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kvm guests are not able to restart
by Farkas Levente 03 Sep '07

03 Sep '07

hi, i've got a centos-5 x86_64 kvm-35 host system with one centos-5 i386 and one x86_64 guests. but none of the guest are able to restart. ie. i login to the guests and restart it. it start's as normal reboot, but after the last command (shuting down md device) it's do nothing, but in virt-manager i see 50% load on the guest. the biggest problem currently i can't find any way to restart any guest's other then shutdown and use virt-manager and restart them:-( what can be a problem? is it a known bug or it's just not working for me? thanks in advance. my system: kernel-2.6.18-8.1.8.el5 kernel-headers-2.6.18-8.1.8.el5 kmod-kvm-35-1.2.6.18_8.1.8.el5 kvm-35-1 libvirt-0.3.2-2 libvirt-python-0.3.2-2 python-virtinst-0.300.0-1 virt-manager-0.5.0-1 virt-top-0.3.2.5-1 virt-viewer-0.0.2-1 -- Levente "Si vis pacem para bellum!"

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