On May 12, 6:17 pm, rejithoma...@gmail.com wrote:
> Hi,
>
> I tried changing the initial prompt displayed by changing the login
> prompt inside a custom made pam_issue library. But this prompt takes
> into effect only if I enter a wrong password and the login prompt is
> displayed again.
>
> I guess this is because the getty while spawning the login program
> doesnt really use the pam infrastructure. I read that I can do this
> using gettytab file. But I need to change the prompt after reading
> some value from a /dev/file, ie its not a static value always
>
> Is my understanding of this prompt display correct?.Also can someone
> help me how to get this done??
>
> Thanks
> Reji Thomas


In short Does someone know how I can change the agetty prompt, since I
am using agetty and not getty. I went through agetty.c and I see
login: prompt hardcoded there. So just wondering if there is any work
around?

On Tue, 13 May 2008 03:01:36 -0700, rejithomas.d wrote:

> On May 12, 6:17 pm, rejithoma...@gmail.com wrote:
>> Hi,
>>
>> I tried changing the initial prompt displayed by changing the login
>> prompt inside a custom made pam_issue library. But this prompt takes
>> into effect only if I enter a wrong password and the login prompt is
>> displayed again.
>>
>> I guess this is because the getty while spawning the login program
>> doesnt really use the pam infrastructure. I read that I can do this
>> using gettytab file. But I need to change the prompt after reading
>> some value from a /dev/file, ie its not a static value always
>>
>> Is my understanding of this prompt display correct?.Also can someone
>> help me how to get this done??
>>
>> Thanks
>> Reji Thomas
>
>
> In short Does someone know how I can change the agetty prompt, since I
> am using agetty and not getty. I went through agetty.c and I see login:
> prompt hardcoded there. So just wondering if there is any work around?

Two options:
1) Compile your own version of *getty that'll use what you want
2) Replace getty with something else that allows what you need. getty
needn't be all that magical, especially if you don't need serial
communication. I recently replaced a getty with a little shell script to
avoid a feedback loop - it would just read a line, test for the presence
of a magic cookie, and upon seeing said cookie, exec /bin/login.

On a Debian system, normally using getty, pre-login prompt, say
"Debian GNU/Linux 4.0 'hostname' 'tty'", can be modified in /etc/issue
....
?