Remote Serial Console HOWTO
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10.2. Linux kernel version 2.4

When configuring the kernel set the following configuration parameters:

Figure 10-5. Kernel configuration for serial console using make menuconfig

Character devices  --->
 [*] Virtual terminal
  [*]   Support for console on virtual terminal
 <*> Standard/generic (8250/16550 and compatible UARTs) serial support
  [*]   Support for console on serial port

This should set the following configuration parameters in /usr/src/linux/.config.

Figure 10-6. Kernel configuration for serial console using .config

CONFIG_VT=y
CONFIG_VT_CONSOLE=y
CONFIG_SERIAL=y
CONFIG_SERIAL_CONSOLE=y

You should also configure the kernel without the magic SysRq key, as described in Section 9.9.

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