/usr/local/sbin/shl_install_efi_stub.sh

shl_install_efi_stub.sh

#!/bin/bash

DEFAULT_ARGS='pcie_aspm=force'
KERNEL_ARGS="${KERNEL_ARGS:-${DEFAULT_ARGS}}"

for file in /boot/vmlinuz-*; do
        if [ "$file" == '/boot/vmlinuz-*' ]; then
                echo "Nothing to do"
                continue
        fi

        version="${file:14}"
        dest="/boot/EFI/Gentoo/vmlinuz-$version.efi"
        echo "Working on $file, version $version, destination $dest"

        if [ -e "$dest" ]; then
                EFIBOOTMGR=0
        else
                EFIBOOTMGR=1
        fi

        if ! cp -vf "$file" "$dest"; then
                echo "Failed to copy $file to $dest, skipping this kernel"
                continue
        fi

        if [ "$EFIBOOTMGR" != "1" ]; then
                rm -vf "$file"
                echo "File $dest existed before, skipping efibootmgr"
                continue
        fi

        if efibootmgr -c -d /dev/sda -p 1 -L "Gentoo Linux $version" \
                   -l '\EFI\Gentoo\'"vmlinuz-$version.efi" \
                   -u "${KERNEL_ARGS}"
        then
                rm -vf "$file"
        else
                echo "efibootmgr failed, not removing $file"
        fi
done