On Mon, Aug 15, 2005 at 12:50:02PM +0100, Luis Moreira wrote:
> I Bill,
> Can you elaborate on this command, what am I saying with this?
> I can understand the /dev ttyS0 and /dev/ttyS1 but what does sudo chmod
> 777 means? As it asks me for the root password I presume that the su

chmod is the change mode command. It changes the permissions of a file.
The 777 means to give all users all permissions (read, write, and execute)
for the device. 666 (read,write) would work just as effectively here.

sudo is a command that facilitates executing a single command as root.
The password it's asking for is your password, not the root password.
Also you have to be in the /etc/sudoers file to have permission to
use sudo. Use the command visudo to edit the file.


> stands for super user...

That is correct.

Try this instead:

$ su -
Password <give the root password here>
# chmod 666 /dev/ttyS0 
# exit
$

That should do it.

BAJ
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