Re: automount permissions problem
On Sat, July 26 at 5:49 PM EDT
Neal Lippman <nl@lippman.org> wrote:
>Here's my problem, maybe someone can help. I have a usb media reader
>than handles smartmedia, compact flash, etc. It works fine in the sense
>of being able to put media into it and mount the media, using the
>usb-storage module, and copy files off the media. The devices look like
>scsi disk drives, as expected with the use of usb-storage.
>
>It would be ideal to be able to use autofs to mount these drives, as I
>do for my dvd and cdrw drives, so I added the appropriate entries into
>auto.mount, the control file for my /mount automount directory. It
>looks like this:
>
># Automount map file
># 6/4/02 nl
>#
>#format:
># key [ -mount-options-separated-by-comma ] location
>dvd -fstype=iso9660,ro,nosuid,nodev,exec,user :/dev/dvd
>cdrw -fstype=iso9660,ro,nosuid,nodev,exec,user :/dev/cdrw
>floppy -fstype=vfat,nosuid,noauto,user,nodev,unhide :/dev/floppy
>cf -fstype=vfat,ro,nosuid,noauto,user :/dev/cf
>sm -fstype=vfat,ro,nosuid,noauto,user :/dev/sm
>
>/dev/cf and /dev/sm are symlinks to /dev/sda1 and /dev/sdb1.
>
>The media cards automount all right, but the protections on the
>directories created by autofs is rwxr--r--, which means I cannot cd
>into or list the files in subdirectories on the media unless I become
>root, which is not ideal. And that's the problem.
>
>I don't have this problem with automounted cd's or dvd's - the
>protection mask for those is rwxr-xr-x, so all works fine.
>
>Is there something I should have done in the auto.mount file? Is this
>something about the way the cf and sm cards work (they are formatted in
>a digital camera, so I don't really have any control over how various
>bits are set in the filesystem.
>
>Any thoughts/help appreciated.
I don't use automount but to get proper permissions for my vfat fs's i
use this type or entry in fstab
/dev/hdb1 /mnt/win98 vfat defaults,gid=6,umask=002
then as long as I am in group 6 ( disk on my box ) I have read access...
The key is the umask portion and equates to permissions of 775 or
rwxrwxr-x in case you aren't familiar with umask.
HTH,
Shawn Lamson
shawn.lamson@verizon.net
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