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#!/usr/bin/bash | |
# openssl req -new -x509 -newkey rsa:2048 -sha256 -days 365 -subj "/CN=Platform Key" -keyout PK.key -out PK.pem -nodes | |
# openssl req -new -x509 -newkey rsa:2048 -sha256 -days 365 -subj "/CN=Key Exchange Key" -keyout KEK.key -out KEK.pem -nodes | |
# openssl req -new -x509 -newkey rsa:2048 -sha256 -days 365 -subj "/CN=Image Signing Key" -keyout ISK.key -out ISK.pem -nodes | |
# cert-to-efi-sig-list -g "$(uuidgen)" PK.pem PK.esl | |
# cert-to-efi-sig-list -g "$(uuidgen)" KEK.pem KEK.esl | |
# cert-to-efi-sig-list -g "$(uuidgen)" ISK.pem ISK.esl | |
# cp ISK.esl db.esl | |
# sign-efi-sig-list -k PK.key -c PK.pem PK PK.esl PK.auth | |
# sign-efi-sig-list -k PK.key -c PK.pem KEK KEK.esl KEK.auth | |
# sign-efi-sig-list -k KEK.key -c KEK.pem db db.esl db.auth | |
# sudo mkdir /etc/uefi-keys | |
# sudo cp ISK.key ISK.pem /etc/uefi-keys | |
# Copy this script to /etc/kernel/install.d/99-sign-all.install and `chmod +x` it | |
RANDOM_SEED="YOUR_SEED" | |
COMMAND="$1" | |
KERNEL_VERSION="$2" | |
function sign { | |
sbsign --key /etc/uefi-keys/ISK.key --cert /etc/uefi-keys/ISK.pem --output "$1" "$1" | |
} | |
case "$COMMAND" in | |
add) | |
bootctl --path=/boot/efi update | |
sign /boot/efi/$RANDOM_SEED/$KERNEL_VERSION/linux | |
sign /boot/efi/EFI/systemd/systemd-bootx64.efi | |
sign /boot/efi/EFI/BOOT/BOOTX64.EFI | |
echo "$(date) | kernel version = $KERNEL_VERSION" >> /boot/sign-all.log | |
;; | |
*) | |
exit 0 | |
esac |
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