Date: Mon, 04 May 1998 00:13:47 -0400 From: drifter@stratos.net To: Ollivier Robert <roberto@keltia.freenix.fr> Cc: chat@FreeBSD.ORG Subject: Re: device busy... Message-ID: <199805040413.AAA12248@stratos.net> In-Reply-To: Your message of "Mon, 04 May 1998 02:35:18 %2B0200." <19980504023518.A2789@keltia.freenix.fr>
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> According to Lanny Baron:
> > Anyone know how to umount a device like a cdrom when umount /cdrom comes
> > back with device busy, and you do a ps -aux and see nothing going on with
> > the cdrom?
>
> Use lsof from ports to find which processes have opened a file or
> device. It is much more usable than our fstat.
> --
> Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- roberto@keltia.freenix.fr
> FreeBSD keltia.freenix.fr 3.0-CURRENT #8: Tue Apr 21 02:45:53 CEST 1998
>
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>
Just as a note, I tried umount /usr a couple days ago when I was
backing up some file systems. I was in single user mode. It would not
allow me to, saying the device was busy. So I remounted /usr, and did
an lsof, and found no files using /usr except lsof and more, which the
output
of lsof was being piped to.
This happened to me one other time. Does anyone have any ideas?
-Drifter@stratos.NOWAY.net
--
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