커널을 rpm 으로 설치하는데 WARN : unknown symbol 이라고

http://bbs.kldp.org/viewtopic.php?t=29678

에서 본 대로 rpm 을 받아서 -ivh 로 설치하는 데 다음과 같은 경고가 뜨네요.

WARNING: /lib/modules/2.6.0-1.21/unsupported/drivers/video/sis/sisfb.ko needs unknown symbol __floatsidf
WARNING: /lib/modules/2.6.0-1.21/unsupported/drivers/video/sis/sisfb.ko needs unknown symbol __fixunsdfsi
WARNING: /lib/modules/2.6.0-1.21/unsupported/drivers/video/sis/sisfb.ko needs unknown symbol __adddf3
WARNING: /lib/modules/2.6.0-1.21/unsupported/drivers/video/sis/sisfb.ko needs unknown symbol __divdf3

으음... 그냥 써도 될런지... 여쭈어봅니다. ^^