Hi all,
I am using the FC7 with kernel 2.6.20-2936.fc7xen, 
I make my disk img using
dd if=/dev/zero of=xen.img bs=1k count=10000000
and then I do nothing with the file xen.img, is there any operations I
should do to the xen.img?
here is my configure file 'xencfg'
kernel = "/root/xen/vmlinuz" # copied from CentOS5/image/xen
memory = 256
name = "xen"
vif = [ '' ]
disk = [ 'file:/root/xen.img,sda1,w' ]
 # Set root device.
root = "/dev/sda1 ro"
extra = "4"
And then I try to create the xen virtual machine
 /usr/sbin/xm create xencfg -c vmid=1
But get the following error prompt:
...
Using IPI No-Shortcut mode
XENBUS: Device with no driver: device/vbd/2049
XENBUS: Device with no driver: device/vif/0
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
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)
Any one know what's the matter of my issue, Many thanks
Best Regards,
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