Unable to execute from USB Drive (FC2)

[Paul Howarth]

Mike McCarty wrote:
> I'll try again with a shorter message.
> 
> I'm having problems executing programs from a mounted USB drive.
> 
> I mount /dev/sda1 to /dev/usb and create some directories
> over there. All paths have execute access all the way down
> When I try to execute a program built on the USB drive, I get
> "bash: /mnt/usb/jmccarty/hello: Permission denied".
> 
> Is this because it is a "removable medium"? I just checked, and
> I get the same error from a floppy.
> 
> Earlier I wrote
> 
>  >So why is permission denied? It's not just that it's removable
>  >medium. So is the floppy, but I can execute from there.
> 
> I must have been thinking about from my DOSEMU (which can and
> does execute DOS images from both floppy and USB drives).

If the filesystems aren't mounted with the noexec option, and the 
execute permissions are set on the files you're trying to run, the next 
thing I'd look for would be selinux audit messages.

Paul.