Problems with loopback and sda1

[Rune Johan Andresen <runejoha@idi.ntnu.no>]

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Hi, my pysical HD is mounted on the logical sda1. When i try to mount
the loopback on something else than sda1, xm complains.

With:
disk = [ 'phy:loop0,xda1,w', 'phy:sda1,sda1,r' ]
root = "/dev/xda1 ro"

I get error msg:
 >>error begin
VFS: Cannot open root device "xda1" or unknown-block(2,0)
   Please append a correct "root=" boot option
   Kernel panic: VFS: Unable to mount root fs on unknown-block(2,0)
 >>error end


Does Xen deny use of anything else than logical sda1 for HD? When my
physical HD is sda1, how can I use another logical drive for my 
loopback?

To save space I want to read-only mount my pysical HD from the 
loopbacks.
(If I try to mount sda1 now, I mount the loopback, not the pysical HD)

Cheers,
Rune


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Hi, my pysical HD is mounted on the logical sda1. When i try to mount 

the loopback on something else than sda1, xm complains. 


With:

<fontfamily><param>Geneva</param><bigger>disk = [ 'phy:loop0,xda1,w',
'phy:sda1,sda1,r' ]

root = "/dev/xda1 ro"


</bigger></fontfamily>I get error msg:

>>error begin

<fontfamily><param>Geneva</param><bigger>VFS: Cannot open root device
"xda1" or unknown-block(2,0)

</bigger></fontfamily><fontfamily><param>Lucida Grande</param><bigger>   </bigger></fontfamily><fontfamily><param>Geneva</param><bigger>Please
append a correct "root=" boot option              

</bigger></fontfamily><fontfamily><param>Lucida Grande</param><bigger>   </bigger></fontfamily><fontfamily><param>Geneva</param><bigger>Kernel
panic: VFS: Unable to mount root fs on unknown-block(2,0)

>>error end

</bigger></fontfamily>


Does Xen deny use of anything else than logical sda1 for HD? When my 

physical HD is sda1, how can I use another logical drive for my
loopback? 


To save space I want to read-only mount my pysical HD from the
loopbacks.

(If I try to mount sda1 now, I mount the loopback, not the pysical HD) 


Cheers,

Rune