similar to: How to pass messages from dom0 to domU??

I am running CentOS 5.3 x86_64 as my dom0 and CentOS 5.3 on my domU's. On the dom0, I have two interfaces that are bonded and have tagged VLANs. I can get the networks to the domU's by creating a bridge for each of the VLANS (bond0.3, bond0.4, etc). On the domU, the interfaces show up as eth0, eth1, etc. Is there a way to set up the network on the dom0 so my domU's see a single

Hi, I'm wondering about the impact of using both dom0 and domU's on a server at the same time. I'm worried about the performance impact of running a Mysql server in a domU and now I'm thinking about moving the Mysql part of a LAMP setup into dom0 and running a few Apache guests as domUs. Since the Apaches will serve mostly from an NFS share they won't have much impact on

Hello all fellow CentOS users! I have a working xen setup with 3 paravirt domUs and one Windblows 2003 fully virt domU. There are to virtual networks. As far as I can tell in the paravirt Linux DomUs I have gigabit networking, but not in the fully virt Windows 2003 domU.... Is there a setting for this, or is it not yet supported? I run xen-3.0.3-64.el5_2.3 Kind regards, Coert

Hello! I've noticed this problem two times now.. last time I fixed it by rebooting the (centos 5.1 x86 32b) xen host/dom0. Symptoms: - Already running domUs (debian 2.6.18-6-xen-686 32b PAE) continue running and working OK - Cannot start new domUs (debian 2.6.18-6-xen-686).. kernel bootup just hangs before running initrd. Same domU with the exact same xen domU cfgfile worked earlier.

I've set up a local webserver to store kickstart files for domUs. All parameters are respected apart from the network settings. DomU always gets DHCP. Can any one help to unwrap this one? Does one add hostname, ip, netmask and gateway values to the /etc/xen/blah.cfg file? # ---- domU kickstart file ----# url --url http://192.168.1.120/centos/5/os/i386 lang en_US.UTF-8 keyboard uk network

I am using Xen 4.6.0-8.el7 on CentOS 7 with 3 Linux DomUs. I did have Xen 4.? on CentOS 6.5 on my previous system. I installed using yum install centos-release-xen. On shutting down the Hypervisor it used to wait for the DomUs to shut down gracefully (one can take a minute or more), then on starting up again it would restart the DomUs, all nice and controlled. For some reason the DomUs (CentOS

Hi, I''m having some issues with having my domUs shutdown gracefully when my dom0 reboots. Heres my config.sxp. --- snippet --- (actions_after_crash restart) (actions_after_shutdown preserve) (auto_power_on False) (actions_after_reboot restart) (on_crash restart) (on_poweroff destroy) (on_reboot restart) (on_xend_start start) (on_xend_stop shutdown) ___________ When I reboot my

Hi all, I would like to know how to debug xen. To give some more informations, I would like to explain why I''d like to do this. I''ve compiled xen from source (3.1.x/unstable) and installed it on Debain etch. Furthermore I''ve installed 2 DomU, one HVM (Win2k3) and one EFW (Endian Firewall, RH-based 2.6.9-55 kernel). Both DomU''s are running fine for about 15

    Question: can dom0 in Xen4.0 be rebooted (from domU or from within dom0) anytime without loosing anything ? If so, please provide details. If not, does Xen.org have this in roadmap ? The closest posting I found (old one) is: http://lists.xensource.com/archives/html/xen-devel/2005-07/msg00885.html The option is parameter as below (but this grub conf) noreboot Debugging Requests that

Hi List, I don''t know if this is something that is a simple matter of opinion or if there are strong reasons to take one route or the other. I have dom0 nodes with dedicated bond interfaces that connect to a storage traffic-only VLAN. Currently I have a few domUs running that have large-ish volumes on the iSCSI SAN, and to present the volumes I''m connecting the dom0s to the

Can anybody tell me if it makes a difference if domU''s have separate LVM volume groups? For instance, the Xen User Manual ( http://tx.downloads.xensource.com/downloads/docs/user/#SECTION03330000000000000000) says, when setting up a domU''s disks with LVM, to do a vgcreate vg /dev/sda10 Should each domU have it''s own volume group, or can all the domU''s share

Hi All, The interface manual says - grant tables provide a generic mechanism sharing between domains. Subsequent lines suggest mechanism sharing between only unpriviliged domains. Can grant tables be used for this capability based shared memory communication between dom0 and domUs? Thanks ~psr -- pradeep singh rautela "proud to be a TUXedo, BSDemons you are a little late" - me

Package: xen-hypervisor-3.0-unstable-1-i386 Version: 3.0-unstable+hg11561-1 Severity: important I've installed xen-linux-system-2.6.17-2-xen-k7 (version 2.6.17-9) on a server, and planned to run 3 Xen domUs on it. Creating the domUs was no problem, and running two of them works well. Starting the third one however will crash the dom0 and forces it to reboot. The machine is a Athlon64 3800+

Hello all, I have a CentOS Dom0 booting CentOS DomU, I am able to start multiple DomUs from the command line using xm create, but if I copy the configuration files to /etc/xen/auto only one of the DomUs seem to start up automatically. Has anyone experienced anything similar before? Any pointers / hints? Thanks. -- "I never look back darling, it distracts from the now", Edna Mode

All, Is there a way to setup serial communication between dom0 and domU. The idea is to have some way of exchanging messages between dom0 and domUs. Certainly, it is possible to use s host-only network, and ssh or shared file system to exchange data. However, there could be cases where the dom0 is not networked. You may want to automate configuring domUs from dom0. Any suggestions. Arijit

Hi! I''m currently preparing to xen installation. In the system that I''m going to set up, there will be a need to copy large amounts of data (therefore I want to avoid using network) from domUs to the dom0 (one way only). Mounting a filesystem RO, when a domU has it mounted RW is probably asking for trouble. Therefore I was thinking about using some remounting protocol similar

I am not clear with the working of hypervisor xen. How does an instruction executed by kernel in Ring0 of DomU gets mapped or executed by hypervisor and then is excuted in Dom0. Is this thing some where on the wiki page? -- Tapas _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

I am not clear with the working of hypervisor xen. How does an instruction executed by kernel in Ring0 of DomU gets mapped or executed by hypervisor and then is excuted in Dom0. Is this thing some where on the wiki page? -- Tapas _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

Hello, I use a script network-multi vlan and network-bridge-vlan for multiple VLANs in domu. Several domu uses the bridge vlanbr30. Need to dom0 as was in this vlan''e. How? I tried to put a bridge interface ip, but with him until the rest domu in vlanbr30 not get through. How to understand the need to create a virtual interface (vifx.y) and add it to the bridge vlanbr30. How?

Hello ! Just a quick question about time synchronization between xen dom0 and domUs... We''re running Xen 3.1 64-bit, with 32 and 64 bits linux guests. It''s up since 89 days and the domU''s time is around 5 minutes behind the dom0, which is updated via ntpdate... Any idea why it doesn''t sync the guests even that /proc/sys/xen/independent_wallclock is 0 ?