RE: [Xen-users] installing fc6 as domU directly on lv´s

["Philippe Trolliet" <p.trolliet@xxxxxxxxxxxxxxx>]

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx]On Behalf Of Petersson,
> Mats
> Sent: Dienstag, 22. Mai 2007 14:46
> To: Philippe Trolliet; Xen-Users
> Subject: RE: [Xen-users] installing fc6 as domU directly on lv´s
> 
> 
> > -----Original Message-----
> > From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> > [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of 
> > Philippe Trolliet
> > Sent: 22 May 2007 13:41
> > To: Xen-Users
> > Subject: [Xen-users] installing fc6 as domU directly on lv´s
> > 
> > hi,
> > since 2 days i´m trying to install fedora core 6 directly on logical
> > volumes. my host system is FC6 too.
> > i want to have following layout in my domU:
> > /dev/group/ServerRoot               mounted in domU as /
> > /dev/group/ServerVar                mounted in domU as /var
> > /dev/group/ServerSwap               mounted in domU as swap device 
> > for the server
> > 
> > my xen-config looks like this:
> > 
> > name = "mailserver-FC6"
> > kernel = "/boot/vmlinuz-2.6.20-1.2948.fc6xen"
> > memory = 512
> > disk = ['phy:VolGroup00/MailserverRoot,sda1,w',
> > 'phy:VolGroup00/MailserverVar,sda2,w',
> > 'phy:VolGroup00/MailserverSwap,sda3,w']
> > #vif = [ '' ]
> > root = "/dev/sda1"
> > extra = "ro selinux=0 3"
> > vcpus = 1
> > vif = [ 'mac=00:16:3e:1a:c5:ad, bridge=xenbr0', ]
> > nographic=1
> 
> [snip]
> It seems like your domain dies early during boot - perhaps 
> because you don't have an initrd for your guest?
> 
> Extract from your log-file:
> [2007-05-22 16:31:15 xend.XendDomainInfo 2900] WARNING 
> (XendDomainInfo:882)
> Domain has crashed: name=mailserver-FC6 id=1. 
> 
> 

i tried it with an initrd too. i copied the one of my dom0 to the domU. in
my config i have set the parameter ramdisk like this:
ramdisk = "/boot/initrd-2.6.20-1.2948.fc6xen.img"
that didn´t work too.

after that i generated a new ramdisk for my domU:

$ mkinitrd -f --with=ext3 --preload=ext3 --with=xennet --builtin=aic7xxx
--builtin=serverworks --preload=xenblk --omit-raid-modules
--omit-lvm-modules --fstab=/home/user/mnt/etc/fstab /boot/xen-initrd.img
2.6.20-1.2948.fc6xen

and changed the ramdisk parameter according to the filename of the newly
created ramdisk. i copied the ramdisk to /boot of my domU.
my logical root volume of the domU was mounted in /home/user/mnt.

another question i have: where do i have to copy the initrd? does it need to
be in the /boot-directory of the dom0 or the /boot-directory of the domU?

i got it working right now. after i tried the different ramdisks, i added
those parameters to the config:
extra = "ro selinux=0 3"
vcpus = 1
vif = [ 'mac=00:16:3e:1a:c5:ad, bridge=xenbr0' ]
nographic=1

no i tried it again and it worked. but i don´t know i exactly why but it
works. when the domU used to crash i saw following line in the log:
[2007-05-22 17:00:41 xend 2900] DEBUG (blkif:24) exception looking up device
number for sda3: [Errno 2] No such file or directory: '/dev/sda3'

maybe the newly created initrd solved the problem.


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