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#!/bin/sh
SIGN_FILE=$(find /usr/lib -name sign-file)
MOK_KEY="/var/lib/shim-signed/mok/MOK.key"
MOK_CERT="/var/lib/shim-signed/mok/MOK.pem"
VMLINUZ=$(readlink /boot/vmlinuz)
# All Linux Kernel modules need to be cryptographically signed
find /lib/modules -type f -name \*.ko | while read MODULE; do
modinfo ${MODULE} | grep -q "signer:"
if [ $? != 0 ]; then
echo "E: Module ${MODULE} is not signed!"
read -n 1 -s -r -p "Press any key to continue"
fi
done
if [ ! -f ${MOK_KEY} ]; then
echo "I: Signing key for Linux Kernel not found - Secure Boot not possible"
else
echo "I: Signing Linux Kernel for Secure Boot"
sbsign --key ${MOK_KEY} --cert ${MOK_CERT} /boot/${VMLINUZ} --output /boot/${VMLINUZ}
sbverify --list /boot/${VMLINUZ}
fi
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