Sloppy workaround for unreported bug: floppy mounts with root owner

Israel israeldahl at gmail.com
Sun Apr 19 00:24:52 UTC 2015


On 04/18/2015 06:10 PM, John Hupp wrote:
> I installed Lubuntu 14.04 for someone who had an XP-era PC.  He also
> has a really, really old offline PC that he uses for a few familiar
> programs, and wants to ferry some files back and forth between the two
> PC's using floppies.
>
> This should be no problem, except that the floppy mounts in Lubuntu
> with root ownership, and only root can change content, so ordinary
> users cannot copy files to or edit files on a floppy.
>
> Someone somewhere (!) reported that the behavior could be duplicated
> in a virtual machine with no actual floppy drive.
>
> Design behavior should be that the floppy mounts with the logged-in
> user as owner, which is what happens with USB flash drives.
>
> As far as I can tell, this is a new instance of a regression in the
> kernel and/or udisks2 that has previously been reported and fixed.
>
> See for instance:
> udisks2 mounts floppy disk as root
> <http://bugs.freedesktop.org/show_bug.cgi?id=63849>
> Bug fix released <http://lkml.org/lkml/2014/5/28/297>
> udisks2: mounts floppy always for root:root (not writable for normal
> users) <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=740190>
>
> I couldn't figure out how to get floppies to mount with the logged-in
> user as owner, but I do have a sloppy workaround that sets a
> permission to allows anyone to change content on the floppy.  This was
> inspired by comment #11 at Floppies mount fine, but can't seem to edit
> them in Xubuntu 14.04
> <http://ubuntuforums.org/showthread.php?t=2222487&page=2>.
>
> The sloppy workaround in my case is to add this line to /etc/fstab:
> /dev/fd0 /media/user1/disk vfat
> rw,nosuid,nodev,uhelper=udisks2,user,noauto,umask=0 0 0
>
> This will work fine in a one-user installation, but it fails in a
> multi-user installation.  With user2 as the logged in user, clicking
> on Floppy Disk in pcmanfm to mount it causes the error:
>     The specified directory '/media/user1/disk' is not valid.
>
> I would be happy to hear about it if someone can come up with an
> improved workaround!
>
>
Hi
It should be possible to run:

sudo umount /path/to/floppy
sudo mkdir /media/floppy

fd0 was taken from your e-mail... it may be different on other systems..
sudo mount -o users /dev/fd0 /media/floppy


-- 
Regards

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/lubuntu-users/attachments/20150418/53aa7c23/attachment.html>


More information about the Lubuntu-users mailing list