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From: fredrick@acd.acd.ucar.edu (Tim Fredrick)
Newsgroups: comp.unix.questions
Subject: How can I find out who is on a filesystem when I can't umount it?
Message-ID: <10425@ncar.ucar.edu>
Date: 28 Feb 91 18:18:39 GMT
Sender: news@ncar.ucar.edu
Organization: NCAR/Atmospheric Chemistry Division
Lines: 9

We have a CDROM on our Sun SPARCstation where I constantly have the problem
where umount yields:

  umount /cdrom
  /cdrom: Device busy

How can I find out what process is using that filesystem, and is there a
way to force the umount to happen anyway?  So far I've had to reboot the
system each time.  --Tim