Be aware
that Google has a 10-word limit on search terms, so you may need to focus on the
keywords in the error message.
Most problems that surface after compiling a new kernel are bootloader-related. If you are
running the LILO bootloader and forget to run /sbin/lilo after configuring the new
kernel, it will have problems. See the LILO mini-HOWTO at the Linux Documentation
Project (http://www.tldp.org/HOWTO/LILO.html) for diagnostic aids and solutions to
most LILO problems. The GRUB manual is also online, at
http://www.gnu.org/software/grub/manual/.
Kernel Tuning with sysctl
As the kernel developed over time, developers sought a way to fine-tune some of the
kernel parameters. Before sysctl, those parameters had to be changed in the kernel
configuration and then you had to recompile the kernel.
The sysctl utility can change some parameters of a running kernel. It does this through
the /proc file system, which is a virtual window into the running kernel. Although it
might appear that a group of directories and files exist under /proc, that??™s only a representation
of parts of the kernel; these parts are referred to as variables.
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