kvm

I'm trying to run multiple KVM VMs with hugepages enabled on Proxmox VE 4.4-12/e71b7a74. I've followed instructions on the web to set the vm.nr_hugepages using sysctl in order to reserve the amount of memory that I plan to use with my VMs. However, once I start the first VM, the number of free...

Hi, Next week i planing to migrate my esxi server to proxmox. I find a guid for this: https://pve.proxmox.com/wiki/Migration_of_servers_to_Proxmox_VE Now i install a test system to a not used server to try how can i migrate all the vms-s from esxi to proxmox. I stuk at hard disk part. I...

I have a problematic VM that randomly hangs with CPU usage pegged to the max. the load average goes 30+ and though I can ping the machine as normal, the console never responds and all users are locked out. Until the crash, the system runs under 1.00 load average. I have to stop/start to get it...

Possible many users search about problems with KVM can not communicate to outside. A ping to inside is running, but a ping to outside not! We have search about this many hours! A blocking will going on, when: Firewall for the KVM machine is DISABLED <<<< NOT UNDERSTANDABLE WHY !!! but when...

Hello, Basically, I am running an LXC Ubuntu container and a Windows 7 VM in my environment. I want to be able to clone these and have each clone designated with a unique host name. I have read that bash scripting might help me accomplish this but I am lost on how I would implement this with...

Occasionally we experience unplanned, spontaneous reboots on our Proxmox nodes installed on ZFS. The problem we are having is related to vzdump backups: if a reboot happens during an active vzdump backup that locks a VM, after reboot the locked guest will not start, and needs to be manually...

Hello, we have a proxmox 4.4 node hosted on Hetzner and configured with bridged networking. The machine works fine with this setup and hosts 4 KVMs with additional IPs (no subnet) with separate MACs. Each VM has a single IP and is working as expected (Centos cPanel VMs). We are trying to add...

Hello, i can't boot a Centos KVM VM form a vzdump backup done on a pve 3.4-6 to last version: No error on vzdump log: --------------------------------------------------------------------------- less vzdump-qemu-103-2017_02_02-06_20_08.log Feb 02 06:20:08 INFO: Starting Backup of VM 103...

I had a Proxmox install on XFS which kept crashing. I had built a KVM machine to host OpenMediaVault on a separate hard drive. Having rebuilt the machine on EXT4 (I really hope that I would use XFS but I don't trust it on Proxmox after the failure), I wanted to be able reuse the KVM image on...

Hallo zusammen, bin derzeit dabei mir Proxmox anzusehen und bin derzeit auf ein Problem gestossen. Nach erstellen und Installieren eines Gastsystems (Debian 8 i686 mit E1000 Netwerkkarte und vmbr0/eth0) kann ich ohne Probleme raus pingen also Google, GW und Interne IPs gehen. Anders herrum geht...

I got problem with a host network (pve-manager/3.4-6/102d4547 (running kernel: 2.6.32-48-pve)). I can ping everything from host but can't ssh to it and can't open any www even do apt-get update. I use pfsense inside kvm on the same host as a gateway (which works great) and another openvz guests...

I have an ansible playbook that clones a debian template, sets some kernel arguments via qm command, boots the VM, and then is supposed to remove the kernel arguments, so they would only be used/seen on first boot. I based my method off of this excellent guide...

Since we upgraded our cluster to PVE 4.3 from 3.4, all our OpenVZ containers have been converted to KVM virtual machines. In many of these guests we get frequent console alerts about CPU stalls, usually when the cluster node is under high IO load (for example when backing up or restoring VMs to...

Hello all, I'm having an issue with our setup that I just can't seem to lick. Having gone around in circles, I'm wondering if anyone here has any ideas, as it's probably something simple I'm missing. We have multiple hosts, each with 6 NICs in. The NICs are grouped into two bonds, and each...

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Hi guys, Need some bright minds in the Proxmox community :) I setup a storage cluster using Ceph (as the title suggests). It's a fairly large cluster consisting of over 200 osds. When I bench the cluster using rados bench, I get exactly the kind of performance I was expecting to get... doing...

Hallo zusammen, Ich möchte über Proxmox KVM Server erstellen und bin gerade dabei ISO Templates zu integrieren. Standardmäßig kann man aus der GUI nur openvz Templates wählen. Meine Fragen: Kann ich die vorhandenen openvz Vorlagen auch für KVM Server verwenden? Oder von wo erhalte ich am...

Hello, I'm experimenting CPU and RAM hot plugging with KVM. I can add or remove RAM from a running VM. It works great! I have read that reducing RAM is not supposed to work, but all worked at the first try. Maybe I read outdated articles? (tested with proxmox 4.3, ubuntu 16.04 guest) I can...

Dear First Im super fan of Proxmox and any Linux technology, I have the following case: I had installed Promox on Dell Server and everything work very smooth, I installed SGM as VM, the application work fine but when need to upgrade the SMG it gave me the hardware not supported error, after...

We have a qcow2 image but the image is only 4GB in size but when we try and resize the disk and new unallocated partitiion is created and we have no way to extend the primary partition. How do we extend the primary partition from 4GB? We do not want another partitiion as we cannot even do...