Hi everyone,
Which device is /dev/console pointing to ? or is it a virtual device ?
Actually why this node is made?
Why kernel default not providing a control terminal on /dev/console but
on other device ?
It is not surprising that we can use CTRL-C to terminate some process on
i386 linux on the Desktop machine, is that mean the shell on our
desktop is not using /dev/console ? so where are the shell running on?
Hope anyone can do me a favour.
Regards,
TOM
In article <[email protected]>,
Tomko <[email protected]> wrote:
>Hi everyone,
>
>Which device is /dev/console pointing to ? or is it a virtual device ?
>Actually why this node is made?
See linux/Documentation/serial-console.txt
>Why kernel default not providing a control terminal on /dev/console but
>on other device ?
Because some daemons open /dev/console to send last resort error
messages to, and you do not want them to unexpectedly gain a
controlling tty.
>It is not surprising that we can use CTRL-C to terminate some process on
>i386 linux on the Desktop machine, is that mean the shell on our
>desktop is not using /dev/console ? so where are the shell running on?
/dev/tty1, /dev/tty2 etc
Mike.
Hi,
Thank you very much for the reply, but i would like to ask some more.
1. it seems we can choose which device we want for console output by
typing this on kernel command line:
console = device , options
if i type "console = ttyS1 " is that means kernel will internally link
/dev/console to /dev/ttyS1 , and when i do any operation to /dev/console
, it is the same as i do to /dev/ttyS1 ?
2 . what means foreground virtual console as tty0 is representing ?
Regards,
TOM
Miquel van Smoorenburg wrote:
>In article <[email protected]>,
>Tomko <[email protected]> wrote:
>
>
>>Hi everyone,
>>
>>Which device is /dev/console pointing to ? or is it a virtual device ?
>>Actually why this node is made?
>>
>>
>
>See linux/Documentation/serial-console.txt
>
>
>
>>Why kernel default not providing a control terminal on /dev/console but
>>on other device ?
>>
>>
>
>Because some daemons open /dev/console to send last resort error
>messages to, and you do not want them to unexpectedly gain a
>controlling tty.
>
>
>
>>It is not surprising that we can use CTRL-C to terminate some process on
>>i386 linux on the Desktop machine, is that mean the shell on our
>>desktop is not using /dev/console ? so where are the shell running on?
>>
>>
>
>/dev/tty1, /dev/tty2 etc
>
>Mike.
>
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