[debian] How does Debian automatic USB drive mounting work? I need to make a minor adjustment.

[ronanian]

OS is Debian Squeeze. Pretty much a default "desktop"-style installation with gnome and such. Out of the box, it successfully auto-mounts drives that I plug in via USB in /media/{UUID} or /media/{Volume name} (depending on if the drive has a volume name or not, I guess). I am very happy with that system and I want to keep it.

 

My only complaint is the permissions. An NTFS filesystem gets mounted drwx------ (with owner and group as my regular user, not root). I want drwxr-xr-x.

 

I've been trying to find out how it works, or how to adjust it. udev notifies udisks and gnome-disk-utility or something like that, I'm not 100% sure and I can't find anywhere to configure a default umask/fmask/dmask for it. Looking in /var/log/ at the time a drive was connected I can find ntfs-3g's entries in daemon.log and syslog telling me what options were passed to it but I can't see what called it.

 

Does anyone know how it works or how I can adjust the default permissions provided by the existing automatic mounting system? I don't want to replace the system with another, I don't want to put stuff in fstab, etc...I want to learn how the existing system works.

Edited May 21, 2013 by ronanian

[tom_newton]

Oof, hasn't linux got trickier to manage since it got easy to use? I would *suggest* polkit is a good starting point, but without a debian box to hand to louse around with I'm loath to make any further comment :-/

[morganw]

I think you create a UDEV rule for the permissions you need.

gnome - How do I set executable permissions on a removable drive? - Ask Ubuntu