centos 4.4 上编译 kernel 2.6.19

I updated the kernel to 2.6.19. I got the kernel from

http://download.fedora.redhat.com/pub/fedora/linux/core/6/source/SRPMS/

I also needed the unifdef srpm, and built it first:

rpmbuild --rebuild unifdef*.src.rpm
rpm -ivh /usr/src/redhat/RPMS/i386/unidef-1*

And then I built the kernel:

rpm -ivh kernel*.src.rpm
cd /usr/src/redhat/SPECS
rpmbuild -bp --target i386 kernel-2.6.spec
cd /usr/src/redhat/BUILD/kernel-2.6.19/linux-2.6.19.i386
make mrproper
cp configs/kernel-2.6.19-i686.config .config
make
make modules_install
make install

然后重启，系统会显示：
Enforcing mode requested but no policy loaded. Halting now."
Kernel panic: Attempted to kill init!

解决办法:在grub菜单中增加enforcing=0
vi /etc/grub.conf
kernel /vmlinuz-2.6.19-prep ro root=LABEL=/ rhgb quiet enforcing=0

改变默认的启动选项：
vi /boot/grub/menu.lst

中的default字段，如default 3，即把列表中的第4个OS作为默认

现在我们把它改成0

保存。
OK，完成