grep 2.6.9 /var/log/messages
Feb 25 23:15:38 pluto kernel: Linux version 2.6.9-42.0.8.ELsmp (mockbuild@builder6.centos.org) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-3)) #1 SMP Tue Jan 30 12:33:47 EST 2007
Feb 25 23:15:38 pluto kernel: inserting floppy driver for 2.6.9-42.0.8.ELsmp
Feb 26 22:49:47 pluto kernel: Linux version 2.6.9-42.0.8.ELsmp (mockbuild@builder6.centos.org) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-3)) #1 SMP Tue Jan 30 12:33:47 EST 2007
Feb 26 22:49:48 pluto kernel: inserting floppy driver for 2.6.9-42.0.8.ELsmp
Feb 26 23:41:43 pluto kernel: Linux version 2.6.9-42.0.8.ELsmp (mockbuild@builder6.centos.org) (gcc version 3.4.6 20060404 (Red Hat 3.4.6-3)) #1 SMP Tue Jan 30 12:33:47 EST 2007
Feb 26 23:41:43 pluto kernel: audit(1172533256.979:1): initialized
Feb 26 23:41:44 pluto kernel: inserting floppy driver for 2.6.9-42.0.8.ELsmp

root@pluto [~]# grep 2.6.20 /var/log/messages
root@pluto [~]#