In regard to: Re: [Networker] Troubleshooting a tape drive, Stan Horwitz...:

You can search for the string NONBLOCK and it will pull up about 4 hits.

I see references to adding the o_NONBLOCK option to st-driver, but I have no clue where that is on my system. How do I modify the st-driver? Google shows lots of hits, but so far, none actually explain where the st-driver is

located and how to change it on RH AS 4.

Search for

        require access to the kernel sources

in the Release Notes on RHEL4:

        
http://www.redhat.com/docs/manuals/enterprise/RHEL-4-Manual/release-notes/as-x86/

It explains how to get the kernel sources.  What you're looking for is a
file called "st.c".  You'll have to rebuild the kernel after making that
modification, which probably means you'll want to roll a new RPM of the
kernel.

One of my coworkers (that follows Red Hat more closely than I do) told me
that Red Hat doesn't support custom kernel builds on RHEL4 and later, so
if you have problems on your system, you may have to switch back to using
a Red Hat kernel before they'll help you troubleshoot (I wouldn't
guarantee they'll be much help even then).

Tim
--
Tim Mooney                                        Tim.Mooney AT ndsu DOT edu
Information Technology Services                   (701) 231-1076 (Voice)
Room 242-J6, IACC Building                        (701) 231-8541 (Fax)
North Dakota State University, Fargo, ND 58105-5164

To sign off this list, send email to listserv AT listserv.temple DOT edu and type 
"signoff networker" in the body of the email. Please write to networker-request 
AT listserv.temple DOT edu if you have any problems with this list. You can access the 
archives at http://listserv.temple.edu/archives/networker.html or
via RSS at http://listserv.temple.edu/cgi-bin/wa?RSS&L=NETWORKER