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Date:      Mon, 19 Feb 2007 14:38:55 +0100 (CET)
From:      Oliver Fromme <>
To:        freebsd-questions@FreeBSD.ORG,
Subject:   Re: "Operation not permitted" when mounting floppy or cdrom
Message-ID:  <>
In-Reply-To: <>

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lysergius2001 <> wrote:
 > FreeBSD 6.2.  Recently installed will not permit user mount of floppy disk,
 > cdrom, or usb.  Works fine as root.  Checked devfs.conf, devfs.rules, fstab,
 > /dev.  Nothing seems to make a difference.

For ordinary users to be able to mount file systems, three
conditions have to be met:

-1-  sysctl vfs.usermount=1

-2-  The user must have read+write access to the device
     to be mounted.  Usually you will solve that via
     group permissions, e.g. create a group for people
     who are allowed to mount a certain device, then put
     those people into that group (via /etc/group), and
     change the permission modes of the device so that
     the group can read+write it.

-3-  The user must own the mount point.  Note that read+
     write access is not sufficient here, and group rights
     don't matter -- the user must be the owner of the
     mount point.

Best regards

Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M.
Handelsregister: Registergericht Muenchen, HRA 74606,  Geschäftsfuehrung:
secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün-
chen, HRB 125758,  Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart
Any opinions expressed in this message are personal to the author and may
not necessarily reflect the opinions of secnetix GmbH & Co KG in any way.
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"C is quirky, flawed, and an enormous success."
        -- Dennis M. Ritchie.

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