bug#46630: GNU Parted bug: Unable to determine the dm type of /dev/mapper/name

[Brian C. Lane]

On Thu, Feb 18, 2021 at 05:54:12PM -0800, Parke wrote:
> Fyi...
> 
> I get the following error when I run "partprobe /dev/mapper/name" as
> non-root on Ubuntu 20.04.
> 
> $  partprobe  /dev/mapper/name
> /dev/mapper/control: open failed: Permission denied
> Failure to communicate with kernel device-mapper driver.
> Incompatible libdevmapper 1.02.167 (2019-11-30) and kernel driver
> (unknown version).
> A bug has been detected in GNU Parted.  Refer to the web site of
> parted http://www.gnu.org/software/parted/parted.html for more
> information of what could be useful for bug submitting!  Please email
> a bug report to bug-parted@gnu.org containing at least the version
> (3.3) and the following message:  Unable to determine the dm type of
> /dev/mapper/name.
> 
> ----
> 
> I did not expect partprobe to work as non-root.  But I did expect a
> terse(r) error message.
> 
> For example, the following error message is expectedly terse.
> 
> $  partprobe  /dev/sdf
> Error: Error opening /dev/sdf: Permission denied

The first line says that, the rest provides additional context what can
sometimes be useful.

Brian

-- 
Brian C. Lane (PST8PDT) - weldr.io - lorax - parted - pykickstart