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Description of problem:

When using 'udisksadm dump', if the user reaches the bottom of the output, they can not scroll back up.  The only way to move forward is ctrl-c or kill the pid.

Version-Release number of selected component (if applicable):

libudisks2-2.8.0-2.el8.x86_64
udisks2-2.8.0-2.el8.x86_64

Steps to Reproduce:
- Run command 'udisksctl dump'
- Page down to the bottom of the output
- Attempt to page back up


Actual results:

The user can not page back up once the bottom of the output is reached; only ctrl-c out.  If the bottom is not reached, the user can scroll back up.

Expected results:

User should be able to scroll as needed.  It seems results would be better if output scrolling functioned like 'less' command.

Confirming, reproducible on different systems.

I can reproduce it on udisks2-2.8.0-2.el8, let me add ack+

Hi Tomas,

Do you know there are any automation ways to check this issue? I don't know how to check the scroll of screen with code.

(In reply to xhe from comment #3)
> Hi Tomas,
> 
> Do you know there are any automation ways to check this issue? I don't know
> how to check the scroll of screen with code.

Hmm, you may set the PAGER env. var. to something else than `less` and observe that udisksctl left the stdout open. I'm not aware of any nice and easy solution right away. Perhaps a simple python script acting like a page could do the trick (just an idea).

Hello

I have installed udisks2-2.8.3-2.el8.x86_64 to my test server, and udisksctl dump commands,  page down,page up work well when page down to bottom of the output, so move to verified 

thanks
Guazhang

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2019:3459