centos-virt,
I'm trying to create/install domU guests all in "one" step, following Daniel's wiki page (I've found these pages really helpful, BTW): http://wiki.centos.org/HowTos/Xen/InstallingCentOSDomU
I have a few questions about this process: (1) How would it be modified (w/respect to defining the disk in the domain configuration file) to use a disk layout where dom0 has N logical volumes, one for each of N domU guests? (2) Using this method (where dom0 has an LV for each domU disk), I would avoid the entire "Creating an image" step, correct?
(3) I'm setting up a dom0 kickstart. If I proceed as described, doing this (where domU_i is the ith guest): ####### in dom0 kickstart... ####### # logical volume for guest domU_i logvol /var/lib/xen/images/domU_i_disk --fstype ext3 --name=LV_domU_i_disk --vgname=vg00 --size=5120 # ...[other guest disk LVs]... ####### ...I'd need to unmount those logical volumes before trying to kickstart the guest domUs, right?
(4) Additionally, how would domU "see" its disk during the install process? Assume I specify a backend LV_domU_i_disk logical volume (an LV in dom0 that I just described) as the disk and map it to a frontend device called 'xvda'. Again using kickstart, I expect it would look like this: ####### in domU kickstart... ####### clearpart --all --initlabel --drives=xvda #... part pv.01 --size=100 --grow --asprimary --ondisk=xvda volgroup volgroup00 --pesize=4096 pv.01 logvol /home --fstype ext3 --name=LV_home --vgname=volgroup00 --size=3072 #... #######
(5) Any comments, criticisms, or suggestions for improvement on these ideas?
Thanks!