Hi LOhit
Sounds like the filer was zeroed and set up without extracting all the supporting files, or booted from a new kernel that doesn't match the ONTAP files installed, or somebody deleted some stuff under /etc.  You can check /etc/.snapshot to see if/when /etc/boot last existed.  You need to refer to the upgrade docs and do a "software install" or use NFS or CIFS to extract the appropriate setup.exe / tarball.
 
You may also notice certain commands are missing, like ndmpd, ndmcopy and a handful of others (do ? from the command line and see if those commands are there).
 
Make sure the version of ONTAP you extract matches the current running version.  Do a version and version -b and make sure they all match.
 
Share and enjoy!
 
Peter


From: LOhit [mailto:lohit.b@gmail.com]
Sent: Monday, June 08, 2009 10:07 AM
To: toasters@mathworks.com
Subject: Unable to open function name/address mapping file

Hello All,

I have been getting this warning message on the console since past 4 days. Have you seen this before by any chance?

I am running 7.2.3 on a 3020 and no changes were made in the recent past, this message starting appearing all of a sudden. BTW, there is no directory called "boot" in "/etc".

Thu Jun  4 23:50:00 GMT [mgr.stack.openFail:warning]: Unable to open function name/address mapping file /etc/boot/mapfile_7.2.3.L: No such file or directory

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LOhit