RE: [Xen-users] RE: [Fedora-xen] some initial trouble

[Steve Brueckner <steve@xxxxxxxxxxxxxx>]

Michael Weiner wrote:
> Steve -
> 
> sorry to bother you again, but i needed a sanity check if you wouldnt
> mind. 
> Here is my fc6 disk layout:
> 
> [root@monica debian]# df
> Filesystem           1K-blocks      Used Available Use% Mounted on
> /dev/mapper/VolGroup00-LogVol00
>                       36693560  11307464  23492108  33% /
> /dev/hda1               101086     17731     78136  19% /boot
> tmpfs                   237660         0    237660   0% /dev/shm
> 
> and my debian config points to sda1 and sda2 for root and swap, is
> that correct that way? The disk and device pointing at what the vm
> sees?  
> 
> Thanks in advance
> Michael

Your df output looks typical; I think it's the default for an FC
installation.
I don't understand your statement about your domU config, so I'll show you a
couple of mine.  Keep in mind these are for Xen 3.0.2-3 which I think is a
little dated.

kernel = "/boot/vmlinuz-2.6-xen"
memory = 512
name = "webserver"
vif = [ '' ]
dhcp = 'dhcp'
disk = ['phy:/dev/VG_vms/webserver,sda1,w',
        'phy:/dev/VG_vms/swap3,sda2,w']
root = "/dev/sda1 ro"

In this case, both the main filesystem and swap for the domU are LVMs, and I
tell the domU to treat the LVMs as sda1 and sda2 internally.  Note I also
mount the domU main filesystem (sda1) read only so it can pass integrity
checks
while booting; FC will then remount it rw.


kernel = "/boot/vmlinuz-2.6-xen"
memory = 512
name = 'webserver'
vif = [ '' ]
disk = [ 'phy:/dev/VG_vms/webserver,hda1,w',
 
'file://opt/mln/projects/root/control_network/images/swap_webserver,hda2,w'
]
root = '/dev/hda1'
extra = 'ro 2'

In this case, the main file system for the domU is an LVM, but it's swap is
a
file on the dom0 system.  This time I tell the domU to treat the LVM and the
file
as hda1 and hda2 internally.  Note again I mount read only and boot into
runlevel 2,
but using a slightly different syntax.

Sorry but I'm really only a casual user of Xen and barely get by myself.  If
I'm 
not helpful hopefully someone more knowledgeable can step in.

Steve Brueckner, ATC-NY

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