1.5 KiB
Secure boot
Secure boot is sometimes a necessity when working with a windows dual boot on laptops and also an extra layer of protection for your system.
- Linux secureboot
For linux to work with secureboot it's necessary to enroll keys using sbctl.
xbps-install -Sy sbctl sbsigntool
Then to create keys, enroll them and sign the executables with it.
# sbctl create-keys
# sbctl enroll-keys
# sbctl sign -s /boot/EFI/Boot/BOOTX64.EFI
# sbctl sign -s /boot/EFI/gummiboot/gummibootx64.efi
# sbctl sign -s /boot/vmlinuz-<version>
If you get an error with enrolling the keys it might be necessary to add the --microsoft flag.
Then to check if it worked.
# sbctl verify
The kernels will now automatically be signed after an update thanks to the sbsigntool package.
Don't forget to turn on secureboot in your bios.
- Linux Windows dual boot
To obtain secure boot for a device with both linux and windows partitions (dual boot), the sbctl package is required. It may be installed with.
# xbps-install -Sy sbctl sbsigntool
Then to create keys, enroll them and sign the executables with it.
# sbctl create-keys
# sbctl enroll-keys --microsoft
# sbctl sign -s /boot/EFI/Boot/BOOTX64.EFI
# sbctl sign -s /boot/EFI/gummiboot/gummibootx64.efi
# sbctl sign -s /boot/vmlinuz-<version>
Then to check if it worked.
# sbctl verify
After every linux kernel update the new executables should be signed.