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1610 discussions

Display and Video modes - more info
by aurfalien 30 Apr '12

30 Apr '12

Hi all, I've searched around and couldn't really find much on the subject. I am playing around with various video modes (spice, vga, etc...) while keeping the display mode to spice. Wondering why my guests defaulted to Cirrus 9MB as I don;t have that actual video adapter in my machine. And what the explanations are between video modes? I noticed vmvga doesn't work for me but rather then trial and error, it would be nice to read some docs on the subject. Thanks in advance. - aurf

1 0

virtio drivers for Centos 5.8
by aurfalien 30 Apr '12

30 Apr '12

Hi, So I updated my guest from 5.1 to 5.8 via a complete yum update, many many packages BTW. I shutdown the guest, change its "Disk bus" from IDE to Virtio and then upon boot, I get kernel panics as no disk can be found. I do get the splash screen at first however. My guest has /dev/hda, should I change its fstab to reflect /dev/vda instead? Thans in advance, - aurf

3 5

Centos 6 - Create raid 1 + LVM during gui install
by aurfalien 27 Apr '12

27 Apr '12

Hi all, Does any one know of a how to for creating raid 1 + LVMs during install for Centos 6? Do I create the physical LVM first and then raid or vise versa? Its seems diff then doing it for Centos 5. - aurf

1 1

proper way to snapshot
by aurfalien 27 Apr '12

27 Apr '12

Hi, While there are a few howtos floating around, what is the standard way to snapshot guests? I went through and converted from raw to pre allocated meta data qcow2 images for this purpose. Some howtos suggest to do an xml snapshot file as so; <domainsnapshot> <name>UbuntuServer_10.10-16032011</name> <description>Snapshot of OS install and updates</description> </domainsnapshot> And then to run as so; virsh snapshot-create UbuntuServer_10.10 … [View More]

3 8

Guests pausing suddenly
by Peter Hopfgartner 27 Apr '12

27 Apr '12

We have a CentOS 6.2 server with KVM. That server hosts 2 virtual machines, both with Centos 6.2, too. Regularly, one or both of the virtual machines pass to state "pause" without apparent reason. On resume, I do get have messages, like the following in /var/log/messages. Feb 28 21:50:45 achernar fcoemon: Failed to connect to lldpad Feb 29 08:23:56 achernar kernel: sd 0:0:0:0: [sda] Unhandled error code Feb 29 08:23:56 achernar kernel: sd 0:0:0:0: [sda] Result: hostbyte=DID_OK driverbyte=… [View More]

3 5

Mac virtualization over KVM
by Mihamina Rakotomandimby 26 Apr '12

26 Apr '12

Hi all, Has anyone succeeded on running this Mac from iATKOS http://goo.gl/AosaB over KVM? Would some have a domain config file to help? I see that for openSuse kernels it seems to work: http://goo.gl/X11MJ The ressource it a bit outdated, might be innacurate today. Would you know a ressource teaching how to? Thank you. -- RMA.

2 1

LVM-snapshot based KVM VMs
by Paul Basov 26 Apr '12

26 Apr '12

Good m/d/n guys, wanted to put idea through you before trying to implement this. So afaik LVM snapshots basically don't take any "real" space on hard drives. I'm using KVM virtualization on my hosts and let's say i create an LVM volume for my linux VM, then install it properly, shut it down and take LVM snapshot of it. Basically i've just cloned it (LVM2 snapshots are r/w). I feed it to KVM and that's it? Can i snapshot this volume N number times and get N number of VMs that take zero … [View More]

2 1

XEN or KVM - performance/stability/security?
by Rafał Radecki 21 Apr '12

21 Apr '12

Hi all. I am currently building a small test cloud based on Eucalyptus 2.0.3 and CentOS 5.8 x64. I have a choice which hypervisor to use: KVM or XEN. KVM is the default in CentOS 6 but I have read also many good things (for example PV guest machines, isolation between Dom0 and DomU) about XEN. Key factors from my opint of view are: - stability (which one runs more smoothly on CentOS?) - performance (XEN PV/HVM(with or without pv drivers) vs KVM HVM(with or without pv drivers)) - security … [View More]

2 1

NIC binding on host and pass through to guests
by Tommy Pham 06 Apr '12

06 Apr '12

Hi, I've just joined the list because of questionnaire in the forum [1]. The hardware is AMD-V(IOMMU) capable and is enabled in the BIOS with 3 NICs. I currently have host Windows 2008 R2 installed but binds (network services and protocols) on NIC3 only. My guests on VMWare workstation (has bridged network service bound on all 3 NIC) has bridged 3 NICs for the guests where NIC1 is WAN, NIC2 is LAN1, and NIC3 is LAN2. One guest have access to all 3 NICs. Other guests would only have access to … [View More]

1 0

Um convite especial
by Gilberto Ferreira 06 Apr '12

06 Apr '12

Criei um perfil no Facebook com minhas fotos, vídeos e eventos e quero adicionar você aos meus amigos para que você possa vê-lo. Primeiro, você precisa se cadastrar no Facebook! Uma vez cadastrado, você também poderá criar seu próprio perfil. Obrigada, Gilberto Para se cadastrar no Facebook, clique no link abaixo: http://www.facebook.com/p.php?i=1389680649&k=AQCUqFQ-FeMKMvR37jKtfnE9oG-vek… Já possui uma conta? Adicionar este endereço de e-mail à sua conta: http://www.facebook.com/… [View More]

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