Re: permissions on a Verbatim USB external drive
On Wednesday 13 March 2013 14:55:01 João Luis Meloni Assirati wrote:
> Em 13-03-2013 07:37, Lisi Reisz escreveu:
> > On Tuesday 12 March 2013 18:58:16 John L. Cunningham wrote:
> >> On Tue, Mar 12, 2013 at 05:31:57PM +0000, Lisi Reisz wrote:
> >>> The Verbatim belongs to User, and needs to function on his box. But it
> >>> cannot be written to from his box, even as root, and returns "access
> >>> denied" to most files and directories that I try to copy over.
> >>
> >> What is the filesystem on the drive? Sounds like NTFS, and it's being
> >> mounted using the read-only ntfs driver. Install ntfs-3g and try
> >> mounting it with that.
> >
> > Thanks for the help.
> >
> > Sorry, I should have said. From the result of the konsole command<mount>
> > on my desktop:
> > <quote> /dev/sdd1 on /media/usb0 type vfat</quote>
> >
> > It "works" fine attached to my computer, which is running Squeeze. But
> > it needs to work attached to its owner's computer, which is also running
> > Squeeze.
> >
> > Lisi
>
> Since vfat filesystems don't hold UNIX permissions, it has to be mounted
> with the umask and/or uid, gid options. If it is plugged through USB and
> you have a mount desktop service communicating with dbus, all should be
> automatic. However, if User mounts it in a static configuration in
> fstab, at least the umask must be set. If this is the case, try an fstab
> line like
>
> /dev/sd?? /media/vfat vfat defaults,umask=0007,uid=User,gid=User
> 0 0
>
> which grants permission for User. A more flexible configuration would be
> to create a special group, say fat, and add all users that need to
> access the disk to this group, and then configure the fstab entry with
> uid=root,gid=fat.
Thank you, João Luis. That makes complete sense, and is very helpful - not to
say, workable. Much appreciated!
Lisi
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