Automatically run Portage Command after rebuilding @world?

[StevenC21]

Hey! I just installed the nvidia blob, and, as many of you know, whenever I modify my kernel I have to reinstall the nvidia driver. This is something that I feel I may often forget, so I was wondering if I could somehow automate it so that @module-rebuild is always rebuilt when @world is?

Thanks for any and all help guys!

[Muso]

Hey! I just installed the nvidia blob, and, as many of you know, whenever I modify my kernel I have to reinstall the nvidia driver. This is something that I feel I may often forget, so I was wondering if I could somehow automate it so that @module-rebuild is always rebuilt when @world is?

Thanks for any and all help guys!

After building a new kernel, run :

Code: Select all

emerge @module-rebuild

Just make it a habit.

If you really want it after each @world upgrade, just tack it on the end :

Code: Select all

emerge -uUD --ask --keep-going --newuse --with-bdeps=y @world && emerge @module-rebuild

The thing with @module-rebuild is that it will rebuild against the kernel in /usr/src/linux. So unless you put the new kernel there, there's not much point in doing that.

[StevenC21]

Well, yes... but in such a way that I don't manually run it, lest I forget.

[The Doctor]

I wrote a kernel update script that prompts the user for interactions to select the new kernel, update the .config, build it, mounts /boot, copies it to boot, unmounts /boot, and runs the emerge command. It keeps everything convenient with minimal effort

[StevenC21]

Would you mind sharing it?

[The Doctor]

Sure, but keep in mind that it is customized to my use.

Code: Select all

#!/bin/bash

# first, find the active kernel
active=`readlink -f /usr/src/linux`

# eselect the new kerenl version
eselect kernel list

# read kernel selection
echo -n "Select kernel: "
read kernel


# number regex
re='^[0-9]+$'
if [[ $kernel =~ $re ]]
then
	echo 
else
	echo invalid number \'${kernel}\', exiting
	exit
fi

# set the new kernel safely
eselect kernel set $kernel
if [ $? -eq 0 ]
then
	echo set kernel.
else
	echo kernel number \'${kernel}\'does not exist, exiting.
	exit
fi

# copy the .config
echo
echo 'copying config'
cp ${active}/.config /usr/src/linux/

# cd into the src directory
cd /usr/src/linux
# update the config to work with the new kernel
make oldconfig

# make sure that it is OK to proceed
read -p "Procceed with the update? (Y/n) " -n 1 -r
echo
if [[ $REPLY =~ ^[Yy]$ ]]
then
        echo '### building kernel ###'
else
        echo 'aborting'
        exit
fi

# build the kernel
make
make modules_install

#install the kernel
mount /boot
echo
echo Build finished. Copying to /boot

#mv /boot/EFI/Boot/bootx64.efi /boot/EFI/Boot/vmlinuz.efi
mv /boot/EFI/Boot/vmlinuz.efi /boot/EFI/Boot/vmlinuz-rescue.efi
cp /usr/src/linux/arch/x86_64/boot/bzImage /boot/EFI/Boot/vmlinuz.efi

echo buld complete.
umount /boot

emerge @module-rebuild

[StevenC21]

You have a typo at the end. It says "buld complete".