Before making any changes to your current, working kernel, make sure that you have a backup copy on a floppy disk. This will allow you to boot into your system with a known working kernel in case something goes wrong during configuration. The command to do this is as follows:

This assumes that your floppy drive is /dev/fd0. (Here is a good shell script tip: the ' character tells the shell to execute what is within ' first and then returns that output as part of the input of the mkbootdisk command.) On this machine, the result is

This command will not be echoed to your screen, but it is what the system will execute.

2. Apply all patches, if any, so that you have the features you desire. See the previous section for details.

3. Back up the .config file, if it exists, so that you can recover from the inevitable mistake. Use the following cp command:

# cp .config .config.bak

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