[Bug 1810578] [NEW] Set correct terminal size to improve login over serial port experience

[Mark Shuttleworth]

Public bug reported:

For people who use ipmiconsole or other serial port access to servers a
great deal it would be helpful to set LINES and COLUMNS correctly on
login. There are a number of ways to do this. I found a small (10k) C
application at:

http://web.archive.org/web/20081224152013/http://www.davehylands.com
/gumstix-wiki/resize/resize.c

which works nicely. It appears to be a simplified version of the resize
command in xterm (which has too many dependencies for comfortable server
usage). It seems quite old (2006) so there may be a better, newer
version of this. Perhaps it would be better named tty-resize.

I added the following two lines to .profile which then invoke the resize
command on login:

# size the terminal for login over serial
[[ $(tty) == /dev/ttyS* ]] & /usr/local/bin/resize

I think remote serial usage is interesting for cloud and server farm use
cases which are a big part of Ubuntu usage, so would like to improve
experience in these cases across the board. This is a small part of
that.

** Affects: base-files (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1810578

Title:
  Set correct terminal size to improve login over serial port experience

Status in base-files package in Ubuntu:
  New

Bug description:
  For people who use ipmiconsole or other serial port access to servers
  a great deal it would be helpful to set LINES and COLUMNS correctly on
  login. There are a number of ways to do this. I found a small (10k) C
  application at:

  http://web.archive.org/web/20081224152013/http://www.davehylands.com
  /gumstix-wiki/resize/resize.c

  which works nicely. It appears to be a simplified version of the
  resize command in xterm (which has too many dependencies for
  comfortable server usage). It seems quite old (2006) so there may be a
  better, newer version of this. Perhaps it would be better named tty-
  resize.

  I added the following two lines to .profile which then invoke the
  resize command on login:

  # size the terminal for login over serial
  [[ $(tty) == /dev/ttyS* ]] & /usr/local/bin/resize

  I think remote serial usage is interesting for cloud and server farm
  use cases which are a big part of Ubuntu usage, so would like to
  improve experience in these cases across the board. This is a small
  part of that.

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