Strange directories under /lib/modules/

[Andreas Sachs <andilist@gmx.de>]

Hi,
can anybody explain me where the directories 2.6.18-6-686_kernel_* came from. Can i delete the directories?


root@asterix:/lib/modules# ll
total 28
drwxr-xr-x  6 root root 4096 May 15 12:04 .
drwxr-xr-x 13 root root 8192 Feb 17 15:04 ..
drwxr-xr-x  4 root root 4096 May 15 12:05 2.6.18-6-686
drwxr-xr-x  9 root root 4096 May  2 13:30 2.6.18-6-686_kernel_22062
drwxr-xr-x  9 root root 4096 Jan 30 19:45 2.6.18-6-686_kernel_4500
drwxr-xr-x  9 root root 4096 Feb 11 17:43 2.6.18-6-686_kernel_4558
root@asterix:/lib/modules# du -s *
46508   2.6.18-6-686
45004   2.6.18-6-686_kernel_22062
45004   2.6.18-6-686_kernel_4500
45004   2.6.18-6-686_kernel_4558
root@asterix:/lib/modules#

Thanks
Andi