Jump to content

kernel update instructions


donjames
 Share

Recommended Posts

I installed my kernel by the manual method:

 

emerge gentoo-sources

cd /usr/src/linux

make menuconfig

# copy a working kernel to /usr/src/linux

make && make modules_install

cp arch/x86/boot/bzImage /boot/

emerge boot-update

Link to comment
Share on other sites

I also install my kernel manually. The process that I have been using for upgrading is very similar to your initial install...

 

# merge different or updated kernel package (e.g. gentoo-sources)

emerge gentoo-sources
 
#change /usr/src/linux link to the new kernel package directory
eselect kernel list
# find the number x corresponding to the new version
eselect kernel set x
 
#transfer old kernel config (e.g. 4.0.0. is the old kernel version)
cp -av /usr/src/gentoo-sources-4.0.0/.config /usr/src/linux/.config
 
#enter kernel directory
cd /usr/src/linux
 
#kernel config
make oldconfig
 
#optional - review/change kernel options
make menuconfig

 

#build and install - assumes that /boot is mounted if separate to /

#include -j8 so to use 8 threads (same as MAKEOPTS in make.conf)
make -j8 bzImage
make -j8 modules
make install && make modules_install

 
#update external initramfs (if applicable)

 

#update bootloader (assumes sys-boot/grub and correct /etc/boot.conf)
boot-update
 
#re-merge kernel module packages against new kernel (e.g. x11-drivers/nvidia-drivers)
emerge --ask --verbose @module-rebuild

 

After a successful reboot and verification of new kernel, consider removing old kernel files.

 

#old kernel source directory

cd /usr/src

rm -r gentoo-sources-4.0.0

#kernel files installed to /boot

cd /boot

rm vmlinuz-4.0.0

rm config-4.0.0

rm System.map-4.0.0

#old kernel modules

cd /lib/modules

rm -r 4.0.0

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

×
×
  • Create New...