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Debian Linux - Terminal Type

Posted on 2003-12-09
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Last Modified: 2013-12-15
Hi

I am using SSH puTTy client to login to my Debian Linux Server, however after upgrading, it no longer likes the 'xterm' terminal type.

When i issue commands such as 'clear' or 'top' i get:

'xterm': unknown terminal type.

I have tried various others: vt100, linux etc etc.



Rik.
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Question by:angelous
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Expert Comment

by:Karl Heinz Kremer
ID: 9903335
What did you upgrade, the server or puTTy? Which terminal is reported when you log on the server using the console? The system should know linux, vt100 or xterm.
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Author Comment

by:angelous
ID: 9903363
hi

i upgraded debian, using apt-get upgrade. then the next time i logged in this started to happen.

when i dont set a term type and run


root@xbox:~# echo $TERM
dumb

Hope this helps.
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LVL 44

Expert Comment

by:Karl Heinz Kremer
ID: 9903381
Did you install the terminfo package?
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Author Comment

by:angelous
ID: 9903406
Well i havnt actively installed that seperately. How do i get and install that? Or detect if its present.

My server is telnet administered only.


Rik.
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LVL 44

Expert Comment

by:Karl Heinz Kremer
ID: 9903550
To find out if you have terminfo installed, check the directory
/usr/lib/terminfo
The directory contains sub directories with letter names. If you are looking e.g. for the xterm description, go to the x directory and see if the xterm file is there.

I've never used apt-get (or Debian), but I think the command to install it is
apt-get install terminfo

You could do a
apt-get --dry-run  install terminfo
first to see if it would even install the package.
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Author Comment

by:angelous
ID: 9903712
hi

no such directory.

i run that command but says no package found.

this is most annoying as i cant see any realy reason why an upgrade would do this?



rik.
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Accepted Solution

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Karl Heinz Kremer earned 50 total points
ID: 9903806
I just found this on http://www.debian.org/doc/manuals/reference/ch-tips.en.html:

--------------------------------------------------------------------------------------------------------------
8.6.9 Set console to the correct type
Console screens in Unix-like systems are usually accessed using (n)curses library routines. These give the user a terminal-independent method of updating character screens with reasonable optimization. See ncurses(3X) and terminfo(5).

On a Debian system, there are quite a lot of predefined entries:

     $ toe | less                  # all entries
     $ toe /etc/terminfo/ | less   # user reconfigurable entries
Export your selection as environment variable TERM.

If the terminfo entry for xterm doesn't work with a non-Debian xterm, change your terminal type from "xterm" to one of the feature-limited versions such as "xterm-r6" when you log in to a Debian system remotely. See /usr/share/doc/libncurses5/FAQ for more. "dumb" is the lowest common denominator for terminfo.

--------------------------------------------------------------------------------------------------------------

Try the toe command to see if it's there. This should list all known terminal types. If this also fails, we have to figure out why the apt-get does not work.
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Author Comment

by:angelous
ID: 9904616
Thank you so much. You Have saved me a big headache.

Your help is much appreciated.


Rik.
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