Which format should I use to format external disk?

[Brian Mury]

> > $ cp -v tent.pdf /media/disk/
> > `tent.pdf' -> `/media/disk/tent.pdf'
> > cp: cannot create regular file `/media/disk/tent.pdf': Permission denied
> > $
> 
> Furthermore:
> 
> $ dir -l tent.pdf
> -rw-r----- 1 psmith psmith 95075 2006-12-31 21:25 tent.pdf
> $

Make sure you have write permissions for the directory you are copying
the file to (in this case, /media/disk).