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0answers
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start Xen DomU automatically when host is rebooted

I have searched the other questions that are similar, but none of them actually provided the answer. The other answers all go down different bunny trails but leave the original question unanswered. I ...
2
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1answer
636 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
578 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
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1answer
99 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 ...
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0answers
202 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
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1answer
440 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 ...
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2answers
1k 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
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1answer
515 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
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1answer
64 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
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0answers
517 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 ...
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1answer
466 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
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1answer
301 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
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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
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2answers
479 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
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2answers
2k 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
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1answer
219 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
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6answers
928 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
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2answers
307 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
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2answers
977 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
677 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
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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 ...