Actually, I don't think you want a shared filesystem r/w to any image while it 
is r/o to several other images. Subtle things change on a read-write disk; 
accessed dates get touched, and things in the directory float. These things 
could make your r/o systems unstable, even if you aren't actively changing 
things on the shared filesystem. Ext2/3 and Reiser are not meant to be shared 
this way, and lots of stuff gets cached in storage...


--
 .~.    Robert P. Nix           Mayo Foundation
 /V\    RO-OC-1-13              200 First Street SW
/( )\   507-284-0844            Rochester, MN 55905
^^-^^   -----
        "In theory, theory and practice are the same, but
         in practice, theory and practice are different."


-----Original Message-----
From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Dominic Coulombe
Sent: Thursday, July 27, 2006 10:24 AM
To: [email protected]
Subject: Re: Shared common Directories

Hi Tim,

What you want to do is feasible, but require good planning.

For an example, you can share RO the /usr filesystem.  When you apply a
patch on the main system which owns the disk in RW, your other machines ARE
NOT aware of the changes until you re-mount the filesystem on each Linux
machine.

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