How do I open a file for editing?

Asked by mak7751 on 2009-01-30

I cannot use my usb-connected-scanner with a normal user. (1) (for Ubuntu)

[For Ubuntu 8.04]

1. Open "/etc/udev/rules.d/40-basic-permissions.rules" file.
2. Edit "0664" to "0666" in "USB devices" section.

Before the edit --------------------------
# USB devices (usbfs replacement)
SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", MODE="0664"
SUBSYSTEM=="usb_device", MODE="0664"

After the edit --------------------------
# USB devices (usbfs replacement)
SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", MODE="0666"
SUBSYSTEM=="usb_device", MODE="0666"

3. Restart the OS.

I need to know how to open the file to edit it. I can find it. I just can't open it.
I would greatly appreciate some help.

Question information

English Edit question
Ubuntu xsane Edit question
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This question was originally filed as bug #323391.

C de-Avillez (hggdh2) said : #1

Thank you for taking the time to report this issue and helping to make Ubuntu better. Examining the information you have given us, this does not appear to be a bug report so we are closing it and converting it to a question in the support tracker. We appreciate the difficulties you are facing, but it would make more sense to raise problems you are having in the support tracker at if you are uncertain if they are bugs. For help on reporting bugs, see

C de-Avillez (hggdh2) said : #2

mak7751: Although I am not sure why you would like to change the default permissions for an USB device, if you want to pursue this you have to edit the file as root.

1. open a terminal;
2. enter 'sudo gedit /etc/udev/rules.d/40-basic-permissions.rules'
3. you will be asked for your password. Enter it.
4. Make your change & save the file.
5. quit gedit

Please be aware that an error in this file may have serious consequences. I strongly recommend you to save the original file as a backup.

Open a Terminal from the menu Applications → Accessories → Terminal and type:


please copy and paste the result here

Thank you

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