[Xen-users] domU startup Issue

[David Brain <dbrain@xxxxxxxxxxxxx>]

Still somewhat new to this, I have a working Xen-3 dom0 (running under 
gentoo) - however I can't seem to get my domU hosts working, and am at a 
point where I'm not sure where to look for further info.
Trying the ttylinux image:

config is:

kernel="/root/vmlinuz.domU"
memory=64
name="ttylinux"
nics = 1
ip = "192.168.0.4"
disk=['file:/root/ttylinux-xen,sda1,w']
root="/dev/sda1 ro"

booting gives (just the tail):

Floppy drive(s): fd0 is unknown type 15 (usb?), fd1 is unknown type 15 
(usb?)
Failed to obtain physical IRQ 6
floppy0: no floppy controllers found
Xen virtual console successfully installed as tty1
Event-channel device installed.
xen_blk: Initialising virtual block device driver
xen_net: Initialising virtual ethernet driver.
NET: Registered protocol family 2
IP: routing cache hash table of 256 buckets, 4Kbytes
TCP established hash table entries: 4096 (order: 4, 65536 bytes)
TCP bind hash table entries: 4096 (order: 3, 49152 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
ip_conntrack version 2.1 (512 buckets, 4096 max) - 220 bytes per conntrack
ip_tables: (C) 2000-2002 Netfilter core team
ipt_recent v0.3.1: Stephen Frost <sfrost@xxxxxxxxxxx>. 
http://snowman.net/projects/ipt_recent/
arp_tables: (C) 2002 David S. Miller
NET: Registered protocol family 1
NET: Registered protocol family 17
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)
What would be a good approach to take to track down this problem?

Thanks,

David.





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