Re: [Xen-users] domU startup Issue

[Arnd Schmitter <arnd_xen@xxxxxxxx>]

David Brain wrote:
> 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.
The Image for the block device is this a filesystem ? Are you able to 
mount it via the loop device under dom0 ?
Or is it a diskimage so you would to have it define as "sda" for the domU.

Arnd


        

        
                
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