I am now using Red Hat 6.2, whose kernel is 2.2.14, and gcc version is egcs-2.91.66. Now I want to upgrade the kernel to 2.3.18. In the Documentation/Changes , it's said that I need to have gcc 2.7.2.3, can i just use my current gcc without any change? Another requirement is about the Linux C Library on my computer. But the command ls -l /lib/libc* doesn't show any information Another weird thing is when I tried to see what version of Procinfo and automount that I have, I got "command not found" erro for both of them. Finally, for the NFS, its requirement is version 2.2beta40, but I have 0.1.6, how can I upgrade it? BTW, Is there any one who's already got the UDF format DVD installed on your Linux system? Thanks. And happy lunar new year to everyone! -Jie - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/