virt January 2009

virt@lists.centos.org

26 participants
22 discussions

Activity logger for Xen Guest Domains using libvirt
by Devraj Mukherjee 09 Jan '09

09 Jan '09

Hi all, Wondering if anyone knows of any tools I can run on my Dom0 to log various stats (like CPU usage, memory usage, etc) for each guest domain for analysis over a period of time? I can see that xentop displays that information anyway but would be nice to be able to present that information on a web based interface for day to day administration. Also any tools that send out email notifications in case of a guest running in critical condition like out of memory etc. Thanks. -- "The secret impresses no-one, the trick you use it for is everything" - Alfred Borden (The Prestiege)

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Ubuntu 8.04 DomU image from jailtime.org on CentOS 5.2 Dom0
by Devraj Mukherjee 07 Jan '09

07 Jan '09

Hello all, I am trying to get an Ubuntu 8.04 image running on my CentOS 5.2 Dom0 which so far has only been running CentOS 5.2 DomUs. The image I am trying to run was fetched from jailtime.org (just so I didn't have to go through building an image for myself). The configuration of the DomU is based on what the guys at jailtime.org provided and its as follows name = "redgum" kernel = "/boot/vmlinuz-2.6.18-92.1.22.el5xen" memory = "1024" disk = ['file:/srv/xen/redgum.img,sda1,w'] root = "/dev/sda1 ro" vif = [ 'bridge=xenbr0', ] vcpus=4 on_reboot = 'restart' on_crash = 'restart' When I start the VM I get the following message VFS: Cannot open root device "sda1" or unknown-block(0,0) Please append a correct "root=" boot option Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0) As per my configuration I have mounted the image to sda1 and the root is specified for the Kernel. Any one with similar experiences or could point me to the right direction? Thanks. -- "I never look back darling, it distracts from the now", Edna Mode (The Incredibles)

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virt January 2009