红旗6.0的Linux用什么版本的jdk???

本人刚学Java，想在红旗6.0的Linux系统里装个jdk，但是 试了很多个版本的.bin文件都不行，
都是显示
Do you agree to the above license terms? [yes or no]
yes
Unpacking...
Checksumming...
Extracting...
jdk-5.0u21-dlj-linux-amd64.bin: line 821: ./install.sfx.13287: cannot execute binary file
Failed to extract the files. Please refer to the Troubleshooting section of
the Installation Instructions on the download page for more information.
文件权限已经用chmod改了
jdk-5.0u21-dlj-linux-amd64.bin
jdk-6u20-linux-ia64.bin这些是对应什么版本的Linux的？
redflag 6.0要用什么版本的.bin文件？？
急急急！