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Date: Mon, 31 Aug 2015 11:20:24 -0500
From: Bruce Dubbs <bruce.dubbs@gmail.com>
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To: Bernhard Voelker <mail@bernhard-voelker.de>, util-linux@vger.kernel.org
Subject: Re: fdisk
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Bernhard Voelker wrote:
> On 08/31/2015 04:04 AM, Bruce Dubbs wrote:
>> I have a question about (or a enhancement request) running fdisk.  When
>> asking to list known partition types, I get about 70 lines of output.
>> Generally that would not be a problem, but I was running in a Debian
>> install/rescue iso that uses busybox in a 25 line terminal.  I do not
>> have a way to scroll up and thus cannot see the first 40 or so partition
>> types.
>>
>> Is there a way to use a pager for this?  In this situation 'more' is
>> available but 'less' is not.  Otherwise I think an automatic pause every
>> 20 lines or so would be appropriate to build into the partition type
>> listing.
>
> hmm, I'm getting 27 lines (at a maximum line length of 79 characters) as
> output of the 'l' command  here - even if I resize the xterm to 20x80
> characters.
> OTOH, the main help output via the 'm' command uses 38 lines.  Shouldn't
> you also have issues with that one in your environment?

In a konsole terminal resized to

# echo $LINES
25
# fdisk --version
fdisk from util-linux 2.26.2

Yes, the main menu scrolls off the top do the topmost line is:

n   add a new partition

but that is not a big problem in konsole because I can scroll back the 
buffer.  The l command lists the partition types and the topmost line of 
the screen is entry number 44.

If it's meaningful, for konsole, I do not use a LANG or any LC_* 
variables and the TERM variable is xterm.

The difficult problem is in busybox where there is no scroll back 
capability.

The problem should be relatively easy to reproduce.  Get a copy of 
debian-8.1.0-amd64-DVD-1.iso and boot it either to HW or in a virtual 
system (I'm using qemu).  Follow the prompts and drop to a terminal and 
then run fdisk.

   -- Bruce


   -- Bruce