which boot files i needed.?

[Kumar <rsrie yahoo com>]

hello list,

 now my /boot partition is 99% usage. now when i try
to use RHN to update my kernel not enough space. here
are my /boot partition file listing. 

total 39472
-rw-r--r--    1 root     root          512 Dec  1
20:05 boot.0800
-rw-r--r--    1 root     root         5824 Jun 25 
2001 boot.b
-rw-r--r--    1 root     root            0 Jan  6
13:45 bootfiles
-rw-r--r--    1 root     root          612 Jun 25 
2001 chain.b
-rw-r--r--    1 root     root        39947 Apr 18 
2002 config-2.4.18-3
-rw-r--r--    1 root     root        39945 Apr 18 
2002 config-2.4.18-3smp
-rw-r--r--    1 root     root        44753 Aug 19
03:07 config-2.4.20-20.7
-rw-r--r--    1 root     root        44805 Aug 19
02:54 config-2.4.20-20.7smp
-rw-r--r--    1 root     root        44753 Dec  2
02:42 config-2.4.20-24.7
-rw-r--r--    1 root     root        44805 Dec  2
02:33 config-2.4.20-24.7smp
-rw-r--r--    1 root     root        44762 Dec 12
04:11 config-2.4.20-27.7
-rw-r--r--    1 root     root        44814 Dec 12
04:03 config-2.4.20-27.7smp
drwxr-xr-x    2 root     root         1024 Dec 26
13:32 grub
-rw-r--r--    1 root     root       201581 Dec  1
19:53 initrd-2.4.18-3.img
-rw-r--r--    1 root     root       205405 Dec  1
19:53 initrd-2.4.18-3smp.img
-rw-r--r--    1 root     root       203185 Dec  1
14:16 initrd-2.4.20-20.7.img
-rw-r--r--    1 root     root       210349 Dec  1
14:17 initrd-2.4.20-20.7smp.img
-rw-r--r--    1 root     root       201908 Dec 18
13:41 initrd-2.4.20-24.7.img
-rw-r--r--    1 root     root       207070 Dec 18
13:41 initrd-2.4.20-24.7smp.img
-rw-r--r--    1 root     root       201864 Dec 26
13:32 initrd-2.4.20-27.7.img
-rw-r--r--    1 root     root       205683 Dec 26
13:32 initrd-2.4.20-27.7smp.img
-rw-r--r--    1 root     root          477 Dec  1
12:12 kernel.h
drwx------    2 root     root        12288 Dec  1
19:50 lost+found
-rw-------    1 root     root       117760 Dec 26
13:32 map
-rw-r--r--    1 root     root        23108 Jun 25 
2001 message
lrwxrwxrwx    1 root     root           23 Dec 26
13:32 module-info -> module-info-2.4.20-27.7
-rw-r--r--    1 root     root        14431 Apr 18 
2002 module-info-2.4.18-3
-rw-r--r--    1 root     root        14431 Apr 18 
2002 module-info-2.4.18-3smp
-rw-r--r--    1 root     root        15438 Aug 19
03:07 module-info-2.4.20-20.7
-rw-r--r--    1 root     root        15438 Aug 19
02:54 module-info-2.4.20-20.7smp
-rw-r--r--    1 root     root        15438 Dec  2
02:42 module-info-2.4.20-24.7
-rw-r--r--    1 root     root        15438 Dec  2
02:33 module-info-2.4.20-24.7smp
-rw-r--r--    1 root     root        15438 Dec 12
04:11 module-info-2.4.20-27.7
-rw-r--r--    1 root     root        15438 Dec 12
04:03 module-info-2.4.20-27.7smp
-rw-r--r--    1 root     root          640 Jun 25 
2001 os2_d.b
lrwxrwxrwx    1 root     root           25 Dec 26
13:42 System.map -> System.map-2.4.20-27.7smp
-rw-r--r--    1 root     root       465966 Apr 18 
2002 System.map-2.4.18-3
-rw-r--r--    1 root     root       490685 Apr 18 
2002 System.map-2.4.18-3smp
-rw-r--r--    1 root     root       505471 Aug 19
03:07 System.map-2.4.20-20.7
-rw-r--r--    1 root     root       530686 Aug 19
02:54 System.map-2.4.20-20.7smp
-rw-r--r--    1 root     root       505471 Dec  2
02:42 System.map-2.4.20-24.7
-rw-r--r--    1 root     root       530686 Dec  2
02:33 System.map-2.4.20-24.7smp
-rw-r--r--    1 root     root       505797 Dec 12
04:11 System.map-2.4.20-27.7
-rw-r--r--    1 root     root       531012 Dec 12
04:03 System.map-2.4.20-27.7smp
-rwxr-xr-x    1 root     root      2835238 Apr 18 
2002 vmlinux-2.4.18-3
-rwxr-xr-x    1 root     root      3176626 Apr 18 
2002 vmlinux-2.4.18-3smp
-rw-r--r--    1 root     root      2989435 Aug 19
03:07 vmlinux-2.4.20-20.7
-rw-r--r--    1 root     root      3345205 Aug 19
02:54 vmlinux-2.4.20-20.7smp
-rw-r--r--    1 root     root      2989435 Dec  2
02:42 vmlinux-2.4.20-24.7
-rw-r--r--    1 root     root      3345205 Dec  2
02:33 vmlinux-2.4.20-24.7smp
-rw-r--r--    1 root     root      2993917 Dec 12
04:11 vmlinux-2.4.20-27.7
-rw-r--r--    1 root     root      3345591 Dec 12
04:03 vmlinux-2.4.20-27.7smp
lrwxrwxrwx    1 root     root           19 Dec 26
13:32 vmlinuz -> vmlinuz-2.4.20-27.7
-rw-r--r--    1 root     root      1030147 Apr 18 
2002 vmlinuz-2.4.18-3
-rw-r--r--    1 root     root      1108097 Apr 18 
2002 vmlinuz-2.4.18-3smp
-rw-r--r--    1 root     root      1072279 Aug 19
03:07 vmlinuz-2.4.20-20.7
-rw-r--r--    1 root     root      1155239 Aug 19
02:54 vmlinuz-2.4.20-20.7smp
-rw-r--r--    1 root     root      1072329 Dec  2
02:42 vmlinuz-2.4.20-24.7
-rw-r--r--    1 root     root      1155215 Dec  2
02:33 vmlinuz-2.4.20-24.7smp
-rw-r--r--    1 root     root      1072424 Dec 12
04:11 vmlinuz-2.4.20-27.7
-rw-r--r--    1 root     root      1155425 Dec 12
04:03 vmlinuz-2.4.20-27.7smp


i know whenever i update my kernel the old kernel
files are also existing those are not needed. can
anyone tell me what files i need remove in the above
/boot partitions.

thanks,
Kumar.

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