We're have the NFS locking problem with Redhat (RHEL4). It's apparently fixed in the next release of the kernel (I hope). But until then we invoke UML via a script which copies the COW file to a unique directory in /tmp and the copies it back to the users home directory--which is nfs mounted--when the user shuts down the virtual machine. We use star (instead of cp or tar) to do the copying because it seems to do a good job of handling sparse files.

        regards,
        bob

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Bob Manson                                        Phone (416)978-5898
Systems Administrator, ECF                        Fax   (416)978-7320
University of Toronto                      email  [EMAIL PROTECTED]
Toronto, Canada M5S 1A4                       or  [EMAIL PROTECTED]
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