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Posted 2011/03/18

Compiling a kernel the Redhat way

One of our students was having trouble making a custom kernel for our test cluster. I wrote him a howto for making Kernel RPMs.

Unpack the kernel:
 cp linux-2.6.38.tar.bz2  /usr/src/
 cd /usr/src/
 bzip2 -d linux-2.6.38.tar.bz2
 tar -xf linux-2.6.38.tar
 ln -s linux-2.6.38 linux
 cd linux-2.6.38

Copy old config:
 cp /boot/config-2.6.25-14.fc9.x86_64 .config
 make oldconfig
 make menuconfig

Build and install RPM:
 make rpm
 cd /usr/src/redhat/RPMS/x86_64/
 rpm -ivh --nodeps kernel-2.6.38default-1.x86_64.rpm

Make RAM disk:
 mkinitrd /boot/initrd-2.6.38-default.img 2.6.38-default

Configure grub:
 cd /boot/
 vi grub/menu.lst