udev disk mount permissions in linux

salon_sue

We would like to set up a customer account on our overo running embedded Angstrom along with ssh so they can log on to retrieve data. uname -a Linux pb014-01 2.6.32 #1 Wed Feb 29 15:17:02 GMT 2012 armv7l GNU/Linux (where pb014-01 should probably read Overo) this is the only version we have all our drivers compiled for. The customer data is located on fat32 formatted external usb or sd mass storage devices, (micro sd(mmcblk0p1) + usb...

Originally asked by user1506475 on Stack Exchange (unix) (CC BY-SA 3.0).

uphilltech

Great question — answering as the UphillTech team:

So it turns out by editing the line in automount() in /etc/udev/scripts/mount.sh did work, I just must have been editing it wrong. Originally the line (25) looks like this if ! $MOUNT -t auto -o async,relatime $DEVNAME "/media/$name" Previously I have been adding fmask & dmask options wrongly. if ! $MOUNT -t auto -o async,relatime,fmask=0777,dmask=0777 $DEVNAME "/media/$name" Now it is as I want if ! $MOUNT -t auto -o async,relatime,fmask=0000,dmask=0000 $DEVNAME "/media/$name" I think before I also may not have rebooted the system, only unplugged and replugged the disk or something but this seems to do what I am after

Full answer by user1506475: https://unix.stackexchange.com/a/255345 (CC BY-SA 3.0).

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