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2
votes
1answer
380 views

Xen SATA PCI Passthrough to Ubutnu DomU not recognising disks

I have a Xen 4.1 server with a Debian Wheezy 7.4 Dom0 (hmpyxen01). It has a SATA PCI card that I am passing through to an Ubuntu Precise 12.04 DomU (hmvmtmp01), installed via xen-tools which in this ...
0
votes
1answer
407 views

Xen dom0 bridge interface drops a lot of RX packets?

I'm running Gentoo Hardened as Dom0. It also acts as a router/NAT. There's a bridge interface called br0 which contains a pci-e wlan card, ethernet nic & domU. bridge name bridge id ...
0
votes
1answer
73 views

Rate Limit Xen DomU Network Traffic

Is there a solid way to rate limit Xen DomU Network I/O Traffic? I found an answer on here using tc but I get this error: Object "qdisk" is unknown, try "tc help". I guess a solution to either of ...
0
votes
0answers
164 views

Why does Xen fail to create domUs/start the virtual network interface?

I have received two errors while trying to create a new domU on Xen. First, I received this error: Unable to complete install: 'POST operation failed: xend_post: error from xen daemon: (xend.err ...
1
vote
1answer
376 views

Booting Ubuntu 12.10 guest on Debian 6.0.4 Xen with pygrub

I'm trying to run a Ubuntu 12.10 off a Debian 6.0.4 and Xen-4.0. I realised that pygrub might not be able to parse the menu.lst (I symlinked menu.lst to grub.cfg in /boot) and ended up with this ...
1
vote
2answers
810 views

How to reset root password CentOS (domU) hosted in Xen?

Need help on resetting root password of a CentOS which is a guess OS (domU) in XEN. I already tried to get to grub but it doesn't display or maybe using a different grub (pygrub). Thanks in advance.
0
votes
1answer
362 views

Xen guest - cannot get network connection beyond the host

I've just installed a XenServer 6.1. It came with a standard configuration, network 0 connected to NIC 0. I created a VM but I can't reach any network beyond the host. From the VM (172.18.32.20), I ...
0
votes
1answer
62 views

Xen domU sees 35MB less than assigned

I am using ubuntu precise 12.04 and I am booting a paravirtualized ubuntu 12.04 domU, all being 64 bits. The VM has memory=1024 assigned and xentop at the host correctly shows 1024MB, but htop in the ...
1
vote
0answers
499 views

Ubuntu Xen DomU Boot Error

I am attempting to boot an Ubuntu 12.04 Precise DomU (Dom0 is Ubuntu 12.04 with xen-hypervisor-4.1-amd64) and it is failing to boot, dropping me back into a shell (see below). I am using ...
-1
votes
1answer
430 views

dom0 enable IPv6 for guests

I am looking at deploying IPv6 to my virtual machines. Right now I have v6 working great on the dom0 using a 6in4 provided by Hurricane Electric as I do not have native v6. However, I would like to ...
0
votes
1answer
252 views

Why would Xend try to restore a deleted domain/VM?

I have a domain 'host10' that no longer exists on the system. The config file was renamed, the configuration changed to point to a different .img, and the image name was renamed as well. I've done ...
0
votes
2answers
1k views

What causes the error “Error: Device 0 (vif) could not be connected. Hotplug scripts not working.” on CentOS5.6 x86_64 with Xen kernel?

I have 10 domU's on my CentOS 5.6 server running Xen kernel. All 10 are set to start on system boot; however, for just 1 of the machines, I get this error: Error: Device 0 (vif) could not be ...
0
votes
2answers
459 views

xm create error cant read ramdisk

So I am attempting to move a physical Native CentOS 4.6 Installation to a DomU instance on a CentOS 5.5 Server. I have followed the available to tutorial @ CentOs - WIki but have encountered the ...
2
votes
2answers
1k views

Xen HVM guest has severe clock drift

I am seeing a very severe clock drift on my Xen HVM VPS, rented from a hosting provider, so I don't have access to the dom0 system. I continuously run ntpd, but the clock drifts by as much as 30 ...
0
votes
1answer
215 views

Xen HVM: Can I make virtualisations if I'm a guest (domU)?

Maybe strange question. But as far as I understand HVM is full emulation of hardware. I have a VDS with 16gb ram and 8xeon, it's domU of XEN HVM. I don't want to run tons of daemons in one plate.. ...
4
votes
6answers
917 views

What do you recommend? OpenVZ or Xen DomU?

I’m looking for a new server at the moment and a fitting virtualization solution. On my recent server I’m using VMware server but don’t what this one anymore as it is very very slow. I have the ...
0
votes
2answers
305 views

Xen Bridge only working when IP Assigned

Just had an (in my sense) obscure situation. I have a Xen Server with bridged networking. Everything works fine since month. A while ago i configuresd a second bridge. only some DomUs get an channel ...
0
votes
2answers
941 views

How do I get a Xen domU to notice a change in the block size of one of its phy devices?

I'm running lvm in my Xen domU, and I can increase the size of a logical volume on the fly, and inside the domU I can increase the size of the filesystem on the fly to the size of the domU's block ...
2
votes
2answers
640 views

Crashing HVM domain, what do I do?

My DomUs on a Xen 3.4 on an RHEL5 are crashing when too much memory is needed: (XEN) p2m_pod_demand_populate: Out of populate-on-demand memory! (XEN) domain_crash called from p2m.c:1091 (XEN) Domain ...
4
votes
3answers
2k views

Easiest way to convert HVM DomU to PVM?

I've got a bunch of Xen 3.4 DomUs that are currently running as HVM because of our infrastructure (Kickstart which doesn't handle Xen PVM yet). Both DomU and Dom0 are RHEL5 machines. If I understand ...