Linux Kernel (2.4.18):
ftp://ftp.kernel.org/pub/linux/kernel/
the linux kernel and the linux kernel headers
The Linux kernel is at the core of every Linux system. It's what makes Linux tick. When a computer is turned on and boots a Linux system, the very first piece of Linux software that gets loaded is the kernel. The kernel initializes the system's hardware components such as serial ports, parallel ports, sound cards, network cards, IDE controllers, SCSI controllers and a lot more. In a nutshell the kernel makes the hardware available so that the software can run.
These are the files we copy to /usr/include/{linux,asm} in chapter 5. They should match those which glibc was compiled against and so should not be replaced when upgrading the kernel. They are essential for compiling many programs.
Linux-2.4.17 needs the following to be installed:
bash: sh
binutils: ar, as, ld, nm, objcopy
fileutils: cp, ln, mkdir, mv, rm, touch
findutils: find, xargs
gcc: cc1, collect2, cpp0, gcc
grep: grep
gzip: gzip
make: make
gawk: awk
modutils: depmod, genksyms
net-tools: dnsdomainname, hostname
sed: sed
sh-utils: basename, date, expr, pwd, stty, uname, whoami, yes
textutils: cat, md5sum, sort, tail