USB permissions question

Robert Heller heller at deepsoft.com
Sat May 18 14:20:46 UTC 2019


At Sat, 18 May 2019 15:07:12 +0100 "Ubuntu user technical support,  not for general discussions" <ubuntu-users at lists.ubuntu.com> wrote:

> 
> If I create a script on a USB stick plugged into my system it's
> permissions are:
> -rw-r--r--
> If I try to make it executable with chmod u+x nothing happens, so I
> can't run it.
> 
> How can I get scripts and programs to run from a USB stick? Is there a
> handy guide somewhere?
> 

You need to mount the disk with '-o exec'.  By default (and rightly so), 
removable media is *always* mounted '-o noexec'.  This is a security feature.

> I tried the advice on
> https://askubuntu.com/questions/17540/how-do-i-set-executable-permissions-on-a-removable-drive
> but "sudo /etc/init.d/udev restart" did not complete and return the
> command prompt, so I'm not clear where to go from here.
> 
> - Richard.

-- 
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