debian:~# uname -r
2.6.17-2-486
debian:~# apt-cache search kernel-headers
kernel-headers-2.4-386 - Linux kernel headers for version 2.4 on 386
kernel-headers-2.4-586tsc - Linux kernel headers for version 2.4 on Pentium-Classic
kernel-headers-2.4-686 - Linux kernel headers for version 2.4 on PPro/Celeron/PII/PIII/P4
kernel-headers-2.4-686-smp - Linux kernel headers for version 2.4 on PPro/Celeron/PII/PIII/P4 SMP
kernel-headers-2.4-k6 - Linux kernel headers for version 2.4 on  K6/K6-II/K6-III
kernel-headers-2.4-k7 - Linux kernel headers for version 2.4 on AMD K7
kernel-headers-2.4-k7-smp - Linux kernel headers for version 2.4 on AMD K7 SMP
kernel-headers-2.4.27-3-386 - Linux 2.4.27 kernel headers for 386
kernel-headers-2.4.27-3 - Header files related to Linux kernel version 2.4.27
kernel-headers-2.4.27-3-586tsc - Linux 2.4.27 kernel headers for Pentium-Classic
kernel-headers-2.4.27-3-686 - Linux 2.4.27 kernel headers for PPro/Celeron/PII/PIII/P4
kernel-headers-2.4.27-3-686-smp - Linux 2.4.27 kernel headers for PPro/Celeron/PII/PIII/P4 SMP
kernel-headers-2.4.27-3-k6 - Linux 2.4.27 kernel headers for AMD K6/K6-II/K6-III
kernel-headers-2.4.27-3-k7 - Linux 2.4.27 kernel headers for AMD K7
kernel-headers-2.4.27-3-k7-smp - Linux 2.4.27 kernel headers for AMD K7 SMP
kernel-package - A utility for building Linux kernel related Debian packages.
linux-kernel-headers - Linux Kernel Headers for development
rt2400-source - RT2400 wireless network drivers source
rt2500-source - RT2500 wireless network drivers source
rt2570-source - RT2570 wireless network drivers source
rt2x00-source - RT2x00 wireless network drivers source
acx100-source - ACX100/ACX111 wireless network drivers source
debian:~#