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man: Use sbsigntools for secure boot key generation example

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This way, people do not need efitools installed to generate these as
sbsigntools has everything needed to produce signed EFI variables.
This commit is contained in:
Jan Janssen 2023-02-01 14:43:59 +01:00
parent 951174e4fe
commit 6ba14371c7
1 changed files with 7 additions and 6 deletions
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13
man/loader.conf.xml
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@ -254,8 +254,8 @@
<programlisting>uuid=$(systemd-id128 new --uuid)
for key in PK KEK db; do
openssl req -new -x509 -subj "/CN=${key}/" -keyout "${key}.key" -out "${key}.crt"
openssl x509 -outform DER -in "${key}.crt" -out "${key}.cer"
cert-to-efi-sig-list -g "${uuid}" "${key}.crt" "${key}.esl"
openssl x509 -outform DER -in "${key}.crt" -out "${key}.der"
sbsiglist --owner "${uuid}" --type x509 --output "${key}.esl" "${key}.der"
done
for key in MicWinProPCA2011_2011-10-19.crt MicCorUEFCA2011_2011-06-27.crt MicCorKEKCA2011_2011-06-24.crt; do
@ -266,7 +266,7 @@ done
# Optionally add Microsoft Windows Production CA 2011 (needed to boot into Windows).
cat MicWinProPCA2011_2011-10-19.esl >> db.esl
# Optionally add Microsoft Corporation UEFI CA 2011 (for firmware drivers / option ROMs
# Optionally add Microsoft Corporation UEFI CA 2011 for firmware drivers / option ROMs
# and third-party boot loaders (including shim). This is highly recommended on real
# hardware as not including this may soft-brick your device (see next paragraph).
cat MicCorUEFCA2011_2011-06-27.esl >> db.esl
@ -276,9 +276,10 @@ cat MicCorUEFCA2011_2011-06-27.esl >> db.esl
# key. The revocation database can be updated with <citerefentry><refentrytitle>fwupdmgr</refentrytitle><manvolnum>1</manvolnum></citerefentry>.
cat MicCorKEKCA2011_2011-06-24.esl >> KEK.esl
sign-efi-sig-list -c PK.crt -k PK.key PK PK.esl PK.auth
sign-efi-sig-list -c PK.crt -k PK.key KEK KEK.esl KEK.auth
sign-efi-sig-list -c KEK.crt -k KEK.key db db.esl db.auth
attr=NON_VOLATILE,RUNTIME_ACCESS,BOOTSERVICE_ACCESS,TIME_BASED_AUTHENTICATED_WRITE_ACCESS
sbvarsign --attr ${attr} --key PK.key --cert PK.crt --output PK.auth PK PK.esl
sbvarsign --attr ${attr} --key PK.key --cert PK.crt --output KEK.auth KEK KEK.esl
sbvarsign --attr ${attr} --key KEK.key --cert KEK.crt --output db.auth db db.esl
</programlisting>
<para>This feature is considered dangerous because even if all the required files are signed with the