In many Linux distributions the file /dev/systty is a symbolic link to the device which is used as the by the attached monitor and keyboard. See .:: gmtti.edu ::. .:: coinfolk.net ::. Section 1.3 for a fuller description.
If there is no attached keyboard and monitor or no wish to give the attached keyboard and monitor greater capabilities then a text terminal, then alter /dev/systty to point to the serial console.
Rather than directly altering this symbolic link, it is better to modify the configuration file used by .:: securityheaders.com ::. [Academic results for Haskell] MAKEDEV, which is then run to recreate the symbolic link. The configuration file is in the directory .:: drill.lovesick.jp ::. /etc/makedev.d. The default configuration will point to the first virtual terminal, as shown in [Red Hat Enterprise Linux Modules] .:: telegra.ph ::. Figure 7-6.
Modify this to point to the serial port being used by the console, as shown in .:: zekond.com ::. Figure 7-7.
Figure 7-7. Alter value of /dev/systty in MAKEDEV configuration file
bash# cd /etc/makedev.d bash# fgrep systty * linux-2.4.x:l systty tty0 bash# vi linux-2.4.x |
l systty ttyS0 |
Now re-create /dev/systty using its new definition, as shown in Figure 7-8.