0
votes
0answers
61 views

CentOS 6 KVM Host cannot connect to Internet while VMs can

I've configured a CentOS 6.4 server as a KVM host running multiple VMs. VMs running on this KVM host are fine. The problem is: the host itself cannot connect to the Internet. External addresses ...
0
votes
0answers
86 views

Apache bench failing with error “No route to host”

Got a new dedicated box. Installed CentOS 6.5 Installed KVM Installed a CentOS 6.5 guest rsync'd websites/database/settings etc over from existing VPS. Set up "dedi.mydomain.com" in DNS to test it ...
1
vote
1answer
120 views

KVM virtual machine boot messages

Just wondering if anyone knows of a way to stop the following boot messages with a centos 6.5 vm created with qemu-kvm When I start the vm there is a slight delay as the vm posts the following boot ...
3
votes
1answer
494 views

How to replace QEMU binary with newer version for libvirt live snapshots

This is my first post, so please be gentle. :) My CentOS 6.5 box has a QEMU binary that does not support live external snapshots. This is the command I attempt on the virsh CLI, and its output: ...
2
votes
2answers
109 views

Exactly how much is backported into RHEL [qemu-kvm specifically]? Only security patches, or perfomance improvments too?

https://access.redhat.com/site/security/updates/backporting/?sc_cid=3093 http://froginapan.blogspot.com/2012/07/redhats-backporting-activity.html As the above two links suggest, only security patches ...
3
votes
2answers
123 views

How can I keep important VMs in memory without disabling swap?

VM Host -> Xenon E5-2440 w/ 48G mem... Everything runs CentOS6.5 (2.6.32-431) I have 4 guest VMs running each w/ 2G of memory. Their disk images are local files. The host machine is also running a ...
0
votes
2answers
821 views

virt-install KVM “Cannot open display ”

So I am trying to create a VM using KVM (on CentOS 6.3) and the command I use is as follows: virt-install --connect qemu:///system --virt-type kvm --name ffVM32 --ram 1024 --disk ...
0
votes
1answer
65 views

Keep guest time after shutdown using KVM/libvirt

I use KVM/libvirt based virtualization. Some of vm guests have set date far in future (2-3 years, different month, day, etc) After each guest shutdown down, the date is being set to host date ...
1
vote
2answers
881 views

Getting started with KVM coming from Vmware

In order to test new ideas and reduce cost I would like to test KVM. I think Vmware has these 3 things which are valuable: - HA which restart VMs (Virtual Machines) in other hosts when a Hardware ...
1
vote
2answers
145 views

KVM CLI install for CentOS 6.3 defaults to Minimal Install

So I now I've installed KVM (and its associated tools and packages- libvirt, VMM etc.). On the GUI (i.e using the VMM), installation works as its supposed to. However, when I try to create a VM using ...
0
votes
0answers
1k views

Unable to download the Kickstart file…

I have tried for several hours to get this Kickstart installation going but to no avail. I have port 21, 22 and 80 opened and even tried FTP and HTTP to access this Kickstart file but it won't work. ...
1
vote
3answers
132 views

qemu-kvm start virt-viewer?

I recently installed qemu-kvm in Centos 6.3 x86_64. I want to start a VM only with an iso file, so i typed: qemu-kvm -hda file.iso -m 1024 but I only get VNC server running on 127.0.0.1:5901 ...
2
votes
1answer
287 views

Poor KVM guest IO performances

I've a DOM0 packed with two 3TB hard drives configured as a software RAID1, also sporting 16GB of memory. The DOM0's Linux distro is a CentOS 6.3 and the hypervisor is a libvirt-managed KVM. I'm ...
0
votes
2answers
786 views

KVM/Qemu Guest Shutdown problems

on both host and guest running CentOS 6.3 with KVM/Qemu virtualization, I have the following scenarios: "virsh shutdown kvm1" did not shutdown at all. virsh lists guest as running. "service ...
0
votes
1answer
430 views

KVM with external IP without NAT?

I have a CentOS 6.3 server with 1 NIC (eth0) and an external IP (lets say 1.2.3.4). On this server I'm running a CentOS 5.6 KVM with the "default settings" (virbr0 on 192.168.122.x). What I want to ...
1
vote
2answers
2k views

does KVM raw images support preallocation?

I was trying to create a raw image with this command: qemu-img create -f raw -o size=200G,preallocation=metadata file.img but seem that it raw images doesn't support preallocation. if so why there ...
4
votes
1answer
2k views

Connecting to host using avahi gives error: Name or service not known

I'm creating and destroying virtual machines all the time, in order to test various services or applications, and so I'd like to use avahi to connect to them by their names so I don't have to use ...
1
vote
1answer
1k views

Libvirt: Can't shutdown or reboot virtual guest

I can't reboot or shutdown the guest vm from the host machine virsh -c qemu:///system reboot vm1 Domain vm1 is being rebooted After executing this, nothing happens. The guest vm keeps working. ...
3
votes
1answer
2k views

Installing Centos 6 using virt-install over SSH with no graphics - beginner

I have a Centos 6 box with virtualised CPUs that is ready for installing a virtual OSs. I am installing remotely over SSH and my Centos 6 box has no GUI (no GNOME etc) so it's purely command line. ...
2
votes
1answer
3k views

error: internal error process exited while connecting to monitor: Supported machines are:

I'm moving Ubuntu Server guest machines from an Ubuntu Server Host to a CentOS 6 Host machine. My intent is to keep the guests as Ubuntu Servers and just change the OS of the Host. I've moved the ...
2
votes
1answer
595 views

virt-install kept on adding --no-reboot - even though I don't want it to

I have a bit of a problem getting my guests to reboot after the OS installation using virt-install. For whatever reason, virt-install insists on inserting "--no-reboot" when you create a VM: ...
1
vote
2answers
1k views

Resize Windows 7 Guest virtualised under KVM on Centos 6

I created a windows 7 virtual machine on Centos 6 running the following: virt-install --name=W7VIRT64 --ram=768 --disk path=/var/lib/libvirt/images/guest1-win7-32,size=8 --vnc --network ...
3
votes
2answers
1k views

windows vnc via ssh to kvm guest - connection failed

I've a headless CentOS6 running KVM and I want to configure a guest via vnc. The problem is my working machine is Win7. I created a guest using command: sudo virt-install --name=c6-64 --disk ...