Joe Linoff
2011-Jan-12 01:40 UTC
[Xen-users] howto create xen (3.4.3) domUs using an AoE network block device during PXE boot under CentOS 5.5 and cobbler
Hi Folks: I apologize in advance if this is the incorrect forum but I wasn''t sure where to turn. I am having a problem and need some guidance. How do I create domU''s that use an AoE network block device for xvda in PXE boot environment? I am using CentOS 5.5 with xen 3.4.3. The network block device is an AoE exported device that is defined from a logical volumes on a file server. The file server has 3 logical volumes: lvm01, lvm02 and lvm03 in volgroup VolGroup01. Each is 100GB. I added them as follows (using vblade-20): fs # vlbaded 1 1 eth0 /dev/VolGroup01/lvm01 fs # vlbaded 1 2 eth0 /dev/VolGroup01/lvm02 fs # vlbaded 1 3 eth0 /dev/VolGroup01/lvm03 I then went to one of my domUs (CentOS 5.5, xen-3.4.3) and started aoe (modprobe aoe). At that point I was able to see the devices in /dev/etherd: domU # modprobe aoe domU # ls -1 /dev/etherd/ e1.1 e1.2 e1.3 I was able to mount the device and use it: domU # mkdir -p /mnt/e1.1 domU # mount /dev/etherd/e1.1 /mnt/e1.1 domU # ls -1 /mnt/e1.1 lost+found domU # touch /mnt/e1.1/foo domU # ls -1 /mnt/e1.1 foo lost+found domU # rm -f /mnt/e1.1/foo But now I want to tell xen to *create* the domU using that device when I PXE boot. I suspect that for an interactive installation I could go to the dom0, install the aoe kernel module, mount the devices that I am interested in (ex. /mnt/e1.1) and add a statement like this to a xen conf file: disk = [''phy:/mnt/e1.1,xvda1,w''] But since I am doing network based installations using PXE, cobbler and CentOS, I need to setup the kickstart and/or some sort of custom installation script. If possible, I would like to leave the dom0 alone and do all of the work in the kickstart. Can anyone offer any suggestions about how to proceed? Thank you, Joe _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users