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тАО11-05-2009 03:26 AM
тАО11-05-2009 03:26 AM
Re: Backspace key taken as garbage during login
That's probably a good idea. But Bill's and JRF's replies in these threads indicates you can use /dev/ttyconf.
http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1217841
http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1150375
http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=601973
http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=181001
http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1066385
http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=999534
http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=997484
http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=982939
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тАО11-05-2009 01:32 PM
тАО11-05-2009 01:32 PM
Re: Backspace key taken as garbage during login
In Putty, go to Terminal -> Keyboard.
You will see the "The Backspace key", pickup control-?(127) and see how it works.
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тАО11-05-2009 07:12 PM
тАО11-05-2009 07:12 PM
Re: Backspace key taken as garbage during login
The default settings for the terminal driver is @=delete-line and #=backspace. Every HP-UX system since the 1980's has used these defaults. The reason is historic as these characters were used with hardcopy terminals where a backspace key cannot erase the ink on the paper. Today, they get in the way and your standard /etc/profile will have two stty statements that set the 'normal' characters for delete-line and backspace. However, /etc/profile does not run until after you login so it does not affect the login and passwd programs.
If you are running 10.20 or any version of 11.xx you can fix this using the ttyconf device file. Do this once while you are running:
stty erase "^H" kill "^U" < /dev/ttyconf
and now backspace will work for login, and @ can be used in a password. It will take effect for all new logins except for the console (which is opened at bootup). To set the console login, you'll need to create a small startup script the runs early in the boot process.
Bill Hassell, sysadmin
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тАО11-16-2009 03:16 AM
тАО11-16-2009 03:16 AM
Re: Backspace key taken as garbage during login
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тАО11-16-2009 01:52 PM
тАО11-16-2009 01:52 PM
Re: Backspace key taken as garbage during login
sp,
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тАО11-16-2009 02:52 PM
тАО11-16-2009 02:52 PM
Re: Backspace key taken as garbage during login
that DOESN'T apply until AFTER login, whch the OP isn't referring to
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тАО11-18-2009 06:56 AM
тАО11-18-2009 06:56 AM
Re: Backspace key taken as garbage during login
On a 11.31 ia64; I am seeing this same issue of backspace causing garbled login credentials.
I used following to get backspace to work even at login, as suggested above;
stty erase "^H" kill "^U" < /dev/ttyconf
But, doesn't ^H translate to shift+backspace ?
So, on the same lines, I tried doing;
stty erase "^?" kill "^U" < /dev/ttyconf
It succeeded in setting;
stty < /dev/ttyconf
erase = DEL; kill = ^U;
swtch
But, this doesn't resolve the issue of garbled input at login if I use backspace now!
Any clue?
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тАО11-19-2009 07:08 PM
тАО11-19-2009 07:08 PM
Re: Backspace key taken as garbage during login
I don't understand the term "login credentails". Are you talking about login and password? When you say garbled, do you mean that typing abc produces a string like Cgfc$3(55?
> I used following to get backspace to work even at login, as suggested above;
stty erase "^H" kill "^U" < /dev/ttyconf
> But, doesn't ^H translate to shift+backspace ?
No, the nomenclature "^H" translates to control-H and on a normal keyboard, this produces the backspace character (see man ascii). DEL is the delete character which matches the "^?" stty setting.
> So, on the same lines, I tried doing;
stty erase "^?" kill "^U" < /dev/ttyconf
>
> It succeeded in setting;
> stty < /dev/ttyconf
> erase = DEL; kill = ^U;
> swtch
And that is correct, but not what most users want. Use the command:
stty erase "^H" < /dev/ttyconf
Then use the backspace key. Note that all of this applies to terminal sessions such as xterm, hpterm and dtterm. If you are filling a special form in Xwindows, then ttyconf probably won't help.
Bill Hassell, sysadmin
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тАО11-19-2009 11:49 PM
тАО11-19-2009 11:49 PM
Re: Backspace key taken as garbage during login
stty kill '^X' intr '^C' werase '^W' erase '^?'
http://forums13.itrc.hp.com/service/forums/questionanswer.do?threadId=1387943
Aneesh
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тАО11-21-2009 10:49 AM
тАО11-21-2009 10:49 AM
Re: Backspace key taken as garbage during login
>And that is correct, but not what most users want.
Unfortunately some new fangled windows and other terminal emulator use DEL and not control-H.
But since I use both interchangeably and I'm been using computers a long time and I'm used to the DEL key doing nothing, I use ^H. And ^X for kill.
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