David, There isn't much that writes to the /usr partition. We've been running shared read-only /usr on SuSE linux for about two years now.
The only change we had to make was to Apache's config file to move the source of stuff being served out by Apache to /home from /usr. The only thing we've found that requires writing to /usr is when you install stuff from .rpm files. You'll have to set up a really good maintenance process that allows you to install rpms on a test server than move the files into production. One way to do it is described in a paper I gave at SHARE. You can see it at http://linuxvm.org/present/SHARE101/S9343GWa.pdf "Thousands of years ago, cats were worshipped as gods. Cats have never forgotten this." _ Anonymous Gordon Wolfe, Ph.D. (425)865-5940 VM Technical Services, The Boeing Company > ---------- > From: Post, Mark K > Reply To: Linux on 390 Port > Sent: Tuesday, January 20, 2004 10:26 AM > To: [EMAIL PROTECTED] > Subject: Re: Determining what programs are writing into /usr > > Well, you could always mount the file system read only and see what barfs. > > > Mark Post > > -----Original Message----- > From: David Kreuter [mailto:[EMAIL PROTECTED] > Sent: Tuesday, January 20, 2004 1:24 PM > To: [EMAIL PROTECTED] > Subject: Determining what programs are writing into /usr > > > Hi: What methods are available for determining what is writing into > /usr and it's subdirectories? Goal is to create a r/o /usr for sharing > amongst multiple vm linux images. os is suse sles8. > Thanks, > David > >
