Re: `losetup --remove` is confusing, and misuse silently fails

On Tue, Oct 21, 2025 at 03:49:01PM +0200, Benno Schulenberg wrote:
> >   # ./losetup --remove --detach loop0
> >   losetup: mutually exclusive arguments: --detach-all --all --set-capacity --detach --find --associated --remove
> 
> Nnn...  My next report was going to be about this.  :) 

 :-)

> About too verbose
> and therefore confusing feedback.  The user did not specify --detach-all,
> nor --all, nor --set-capacity, nor --find, nor --associated.  Thus it is
> confusing to see them mentioned in the error message.
> 
> It would be much nicer if the routine that checks for conflicting options
> would just print the first two incompatible ones of the options that were
> actually given.  For example:
> 
>   # ./losetup --remove --find --all
>   losetup: options --remove and --find cannot be combined
 
Implemented:
    https://github.com/util-linux/util-linux/pull/3835


   Karel


-- 
 Karel Zak  <[email protected]>
 http://karelzak.blogspot.com