virt August 2008

virt@lists.centos.org

38 participants
28 discussions

problems
by Paolo Supino 12 Aug '08

12 Aug '08

Hi I've installed CentOS 5.2 as a guest OS inside VMWare server 1.0.6 running on a Windows XP SP3 (logged in as a local user belonging to the administrator's group). Networking is setup as bridge and the guest OS has it's own IP address (I'm also sitting on a public IP so there is no NAT between the CentOS installation and the Internet). I'm experiencing the following problems: 1. VMWare tools installation failed. First attempt was with the RPM and second attempt was with the tar.gz. In both attempts there were no errors in the installations. 2. I installed Eclipse CDT and it fails to start. It brings up a (what I guess is) alert window, but I can't see what is the warning inside the window because the window doesn't display any text. JRE version installed on the system is 1.6.0_07 installed via Sun's supplied RPM and replacing the Java link in /etc/alternatives 3. After installing VMWare tools I tried changing the screen size from 800x600 to 1024x768 (XP windows size is set to 1280x1024) and now X crashes when it attempts to start (easily fixed by putting screen size back to 800x600, but I don't want to do that). Has anyone encounter similar problems and can help me? -- TIA Paolo

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Need Kernel for NetBSD to install on Xen
by white list 11 Aug '08

11 Aug '08

Hello You All, I'm trying to install NetBSD on Xen. Anyone, I need a kernel to install NetBSD or FreeBSD or both to install it on Xen 3.2 running from CentOS 5.2 Thanks, really appreciate some Help. Thanks, - Augustin

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can't access irc server on xen domU, please help
by Rudi Ahlers 09 Aug '08

09 Aug '08

Hi all, I'm running a CentOS 5.2 server with a FC8 xen domU guest, and an irc server on the FC8 domU guest. For some odd reason, I can't access the irc server on the xen domU guest. >From FC8, when I run netstat -a, I can see irc is listening: netstat -a Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 *:ircd *:* LISTEN tcp 0 0 *:6668 *:* LISTEN tcp 0 0 *:6669 *:* LISTEN tcp 0 0 *:ftp *:* LISTEN tcp 0 0 192.168.10.:afs3-fileserver *:* LISTEN tcp 0 0 localhost.localdomain:smtp *:* LISTEN tcp 0 0 192.168.10.13:ftp 196-209-84-62-tpr-esr:49615 ESTABLISHED tcp 0 0 *:http *:* LISTEN tcp 0 0 *:ssh *:* LISTEN and running nmap on the localhost looks promising as well: netstat -a Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 *:ircd *:* LISTEN tcp 0 0 *:6668 *:* LISTEN tcp 0 0 *:6669 *:* LISTEN tcp 0 0 *:ftp *:* LISTEN tcp 0 0 196.34.136.:afs3-fileserver *:* LISTEN tcp 0 0 localhost.localdomain:smtp *:* LISTEN tcp 0 0 196.34.136.55:ftp 196-209-84-62-tpr-esr:49615 ESTABLISHED tcp 0 0 *:http *:* LISTEN tcp 0 0 *:ssh *:* LISTEN Yet, from the outside (either from another PC, or the dom0 itself), I can't connect to the irc ports. I've even disabled iptables on the dom0 altogether, but stil can't connect to it. The only open ports are: PORT STATE SERVICE 80/tcp open http 443/tcp closed https 7001/tcp closed afs3-callback 8000/tcp closed http-alt 8080/tcp closed http-proxy 8081/tcp closed blackice-icecap How do I get this to work? -- Kind Regards Rudi Ahlers

1 0

KVM + bridge + static ip address
by Raymond C. Rodgers 08 Aug '08

08 Aug '08

Hi folks, I've been reading through the list a bit, and also looked at the KVM How-To on the wiki (http://wiki.centos.org/HowTos/KVM ) but I still have a question. I haven't yet begun to set up KVM, so I haven't made any mistakes yet. :-) My company recently rented a server on which CentOS 5.0 is installed, and my goal is to set up a virtualized instance of CentOS for a new employee to tinker and learn on before I let him have hands on the real server. What I want to do is set up CentOS in KVM, and assign it one of the unused IP addresses on the server so that he and I can access it without having to first connect to the real server. The wiki didn't really give me a good idea of how to accomplish this, and I haven't done a bridge before, so I wanted to check with the list to see if I could get some advice on how to accomplish this. For demonstration purposes, lets say that the external IP address of the real server is 10.0.0.1, and I want the virtualized install to be found at 10.0.0.2. Can someone show me how to modify the kvm rules found on the wiki (and pasted below) to accomplish this? Thanks! Raymond #!/bin/sh PATH=$PATH:/usr/sbin:/sbin sudo brctl addbr br0 sudo ifconfig eth0 0.0.0.0 sudo brctl addif br0 eth0 sudo ifconfig br0 192.168.1.120 netmask 255.255.255.0 up sudo route add -net 192.168.1.0 netmask 255.255.255.0 br0 sudo route add default gw 192.168.1.1 br0 sudo tunctl -b -u john sudo ifconfig tap0 up sudo brctl addif br0 tap0 export SDL_VIDEO_X11_DGAMOUSE=0 sudo iptables -I RH-Firewall-1-INPUT -i br0 -j ACCEPT qemu-kvm ~/win2k.img -m 512 -net nic -net tap,ifname=tap0,script=no

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RE: VMs won't power on
by Richard Fairfield 08 Aug '08

08 Aug '08

Because I was in a hurry, I had to move this project to a different OS. I installed VMserver on Ubuntu, where I had knew it would work. I'll come back to CentOS later. But, for those that asked: 1) I was not running the Xen verion of the kernel. 2) The VMs that I was trying to start are good; they both worked on other VMware Server installations. Thanks to all who responded. Richard Fairfield | Applications Engineer Isilon Systems P +1-206-315-7500 F +1-206-315-7501 www.isilon.com D +1-206-777-7911 M +1-206-372-2776 From: Richard Fairfield Sent: Thursday, August 07, 2008 2:00 PM To: centos-virt(a)centos.org Subject: VMs won't power on Hello - I have installed the VMware-server-1.0.5-80187.i386.rpm package on a CentOS 5.1 system. I then ran the vmware-config.pl program. I chose mostly default answer, except that I did not choose the NAT option; I saw no errors. I used the VMware Server Console to create a Red Hat Linux VM. I also copied an externally created VM into the '/var/lib/vmware/Virtual Machines/' directory. I cannot power-on either of these VMs. The VM's console is blank for several minutes, after which the following message appears in a pop-up window: Unable to change virtual machine power state: The "/usr/lib/vmware/bin/vmware-vmx" process did not start properly Try running "/usr/lib/vmware/bin/vmware-vmx /var/lib/vmware/Virtual Machines/Red Hat Linux/Red Hat Linux.vmx" from the command-line on the server.. I tried running it from the command line, as the message suggests. That just hangs forever. I don't see anything other than the above error message in the /var/log/vmlog/vmware-serverd.log file. I've tried rebooting, and uninstalling and reinstalling the VMware Server software. I even tried installing from tar file, instead of the RPM. Nothing changes. I'm completely stuck. Can anyone help me with this? Richard Fairfield | Applications Engineer Isilon Systems P +1-206-315-7500 F +1-206-315-7501 www.isilon.com D +1-206-777-7911 M +1-206-372-2776

2 1

how to monitor each VM's traffic?
by Rudi Ahlers 08 Aug '08

08 Aug '08

Hi all Can someone please tell me how to monitor each VM's traffic on a CentOS 5.2 server, running either Xen or OpenVZ? I need to bill my users for the traffic they use, and would like to have a traffic usage graph for each Xen / OpenVZ Virtual Machine on the server. Thanx :) -- Kind Regards Rudi Ahlers

4 7

VMs won't power on
by Richard Fairfield 08 Aug '08

08 Aug '08

Hello - I have installed the VMware-server-1.0.5-80187.i386.rpm package on a CentOS 5.1 system. I then ran the vmware-config.pl program. I chose mostly default answer, except that I did not choose the NAT option; I saw no errors. I used the VMware Server Console to create a Red Hat Linux VM. I also copied an externally created VM into the '/var/lib/vmware/Virtual Machines/' directory. I cannot power-on either of these VMs. The VM's console is blank for several minutes, after which the following message appears in a pop-up window: Unable to change virtual machine power state: The "/usr/lib/vmware/bin/vmware-vmx" process did not start properly Try running "/usr/lib/vmware/bin/vmware-vmx /var/lib/vmware/Virtual Machines/Red Hat Linux/Red Hat Linux.vmx" from the command-line on the server.. I tried running it from the command line, as the message suggests. That just hangs forever. I don't see anything other than the above error message in the /var/log/vmlog/vmware-serverd.log file. I've tried rebooting, and uninstalling and reinstalling the VMware Server software. I even tried installing from tar file, instead of the RPM. Nothing changes. I'm completely stuck. Can anyone help me with this? Richard Fairfield | Applications Engineer Isilon Systems P +1-206-315-7500 F +1-206-315-7501 www.isilon.com D +1-206-777-7911 M +1-206-372-2776

3 2

How many gusets can I run with Centos 5.2
by Götz Reinicke 04 Aug '08

04 Aug '08

Hi, how many gusets can I run with Centos 5.2? RH EL 5 is limeted to 4 guests while the advanced server is unlimeted. We like to migrate a couple of small physical servers and some test/development-systems to virtual systems. Thanks for any hints. Best regards Götz Reinicke -- Götz Reinicke IT-Koordinator Tel. +49 7141 969 420 Fax +49 7141 969 55 420 E-Mail goetz.reinicke(a)filmakademie.de Filmakademie Baden-Württemberg GmbH Mathildenstr. 20 71638 Ludwigsburg www.filmakademie.de Eintragung Amtsgericht Stuttgart HRB 205016 Vorsitzende des Aufsichtsrats: Prof. Dr. Claudia Hübner Staatsrätin für Demographischen Wandel und für Senioren im Staatsministerium Geschäftsführer: Prof. Thomas Schadt

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virt August 2008