Gentoo Kernel Upgrade

From KdjWiki

This applies once you have emerged a new version of your kernel sources. In this example I am assuming the old kernel was linux-2.6.14-gentoo-r2 and the new kernel version is linux-2.6.14-gentoo-r5. I am also assuming you use grub as your boot manager.

Pre-Steps

Go to your source folder:

  $ cd /usr/src

Make sure you use the old/current configuration:

  $ sudo cp linux/.config linux-2.6.14-gentoo-r5/

Link the new source tree to the generic linux folder (assuming the new kernel version was linux-2.6.14-gentoo-r5):

  $ sudo rm linux
  $ sudo ln -sf linux-2.6.14-gentoo-r5 linux

Upgrade the configuration:

  $ cd linux
  $ sudo make oldconfig

Backup current kernel:

  $ sudo mount /boot
  $ cd /boot
  $ sudo cp kernel-linux-2.6.14-gentoo-r2 kernel-working
  ...

And add to grub:

  $ cd grub
  $ sudo nano -w grub.conf

  xxxxx
  xxxxx

Manual

To upgrade your kernel manually, you should perform run the following:

  $ sudo make
  $ sudo make modules_install

And then install the kernel:

  $ sudo cp arch/i386/bzImage /boot
  ...

Genkernel