root@lithium:~# aptitude search kernel-headers
v kernel-headers -
v kernel-headers-2.4 -
p kernel-headers-2.4.27-2 - Header files related to Linux kernel version 2.4.27
p kernel-headers-2.4.27-2-386 - Linux 2.4.27 kernel headers for 386
p kernel-headers-2.4.27-2-586tsc - Linux 2.4.27 kernel headers for Pentium-Classic
p kernel-headers-2.4.27-2-686 - Linux 2.4.27 kernel headers for PPro/Celeron/PII/PIII/P4
p kernel-headers-2.4.27-2-686-smp - Linux 2.4.27 kernel headers for PPro/Celeron/PII/PIII/P4 SMP
p kernel-headers-2.4.27-2-k6 - Linux 2.4.27 kernel headers for AMD K6/K6-II/K6-III
p kernel-headers-2.4.27-2-k7 - Linux 2.4.27 kernel headers for AMD K7
p kernel-headers-2.4.27-2-k7-smp - Linux 2.4.27 kernel headers for AMD K7 SMP
v linux-kernel-headers -
p pistachio-kernel-headers - L4 microkernel implementation - kernel headers
root@lithium:~# uname-a
-bash: uname-a: command not found
root@lithium:~# uname -a
Linux lithium 2.6.17-11-generic #2 SMP Thu Feb 1 19:52:28 UTC 2007 i686 GNU/Linux