Re: [Xen-users] is there a detailed explaination of the disk, root, and extra tokens?

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

> hi.  newbie.  looking to understand the disk=, root= and extra= syntax
> (doc seems a little light).

disk = : allows you to export devices / files in dom0 to a target device in 
the guest.  There's some detail on this in the user guide and also in the 
example config files.

root = : root device location to pass to the guest on its kernel command line.  
this should be set to the *target* device for the root disk you're exporting 
using the disk = line.

extra = : this is for any random extra text you want appended to the kernel 
commandline.  You probably don't need it.

> Also, i have dom0 as an afs client with /foo
> mounted via afs.  is there anyway i can have /foo visible in domU?

Re-exporting using NFS may work (depending on if AFS is an exportable 
filesystem) but it's a bit of an ugly solution.  You could import the afs 
mount directly into the guests as if they were separate hdosts.

Exporting directory hierachies isn't something we have special support for at 
the moment - we're working on it.  I have some code for a high-performance 
shared memory filesystem called "XenFS" but this is a fair way away from 
being production ready.  Expect to see more details posted on the xen-devel 
list in future.

Cheers,
Mark

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