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    secure boot - dbx.esl no such file to move

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    • george1421G
      george1421 Moderator @robertkwild
      last edited by

      @robertkwild Since you didn’t reference a step I can only guess at the answer.

      But the dbx.esl is created on this post Preparing the FOG server with the prerequisites

      More specifically is a copy of the dbx file you exported out of hardware in this section

      sudo efi-readvar -v dbx -o /opt/fog/secureboot/hwkeys/hw_dbx.esl

      dbx.esl is also created when you run these commands

      cd /opt/fog/secureboot/efitools
make

      This is when you first compile the efitools programs
      Then we rename the first compiled version with this command because we don’t need it in the finished product. We’ll use the hw one that was downloaded from the firmware.

      mv dbx.esl dbx-fog.esl

      And then finally we take the firmware hw_dbx.esl file and copy it over to the dbx.esl file name.

      cat hw_dbx.esl > dbx.esl

      Depending on where you are getting the error I think you missed a step. The dbx.esl file contains any certificates that have been revoked. When you compile the file signing keys the default microsoft dbx.esl file is good enough.

      Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

      R 1 Reply Last reply Reply Quote 1
      • R
        robertkwild @george1421
        last edited by robertkwild

        @george1421

        sudo efi-readvar -v dbx -o /opt/fog/secureboot/hwkeys/hw_dbx.esl

        I did run this command and then I moved it to this dir as you can see from my previous post when I ran the ls command

        I did run the make command in the efitools dir but as you can see it’s not here as I’ve done an ls command and it’s not listed

        I can’t mv dbx.esl as it’s not there to move

        I can however cp hw_dbx.esl and rename the copy dbx.esl so I do have a dbx.esl file, do I have to do this?

        Thanks
        Rob

        george1421G 1 Reply Last reply Reply Quote 0
        • george1421G
          george1421 Moderator @robertkwild
          last edited by

          @robertkwild said in secure boot - dbx.esl no such file to move:

          I can’t mv dbx.esl as it’s not there to move

          So if after you compile efitools and the dbx.esl doesn’t exist that is OK since you will be replacing it with the exported hw_dbx.esl key. So its all good

          Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

          R 1 Reply Last reply Reply Quote 1
          • R
            robertkwild @george1421
            last edited by

            @george1421 thank you george very much

            im doing this on another laptop with secure boot on and then il transfer the files to my fog server that way

            is the below file the only file i need from the laptop, or do i need these two files aswell

            /opt/fog/secureboot/efitools/EnrollKeys.efi

            /opt/fog/secureboot/efikeys/DB.crt
            /opt/fog/secureboot/efikeys/DB.key

            thanks,
            rob

            george1421G 1 Reply Last reply Reply Quote 0
            • george1421G
              george1421 Moderator @robertkwild
              last edited by

              @robertkwild If you are going to let EnrollKeys.efi update your PC then that is the only thing you need for pxe booting

              You need to sign ipxe.efi and bzImage using the other keys. But that all stays on the FOG server.

              Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

              R 1 Reply Last reply Reply Quote 0
              • R
                robertkwild @george1421
                last edited by

                @george1421 thanks

                also im using as the boot file name “snp.efi” is that a problem

                george1421G 1 Reply Last reply Reply Quote 0
                • george1421G
                  george1421 Moderator @robertkwild
                  last edited by

                  @robertkwild said in secure boot - dbx.esl no such file to move:

                  boot file name “snp.efi”

                  Not a problem as long as you sign that file too. Any efi file you want to boot needs to be signed with the matching certificate in firmware.

                  Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

                  R 1 Reply Last reply Reply Quote 0
                  • R
                    robertkwild @george1421
                    last edited by

                    @george1421 so your saying

                    mv /tftpboot/ipxe.efi /tftpboot/ipxe-unsigned.efi
sbsign --key /opt/fog/secureboot/efikeys/DB.key --cert /opt/fog/secureboot/efikeys/DB.crt --output /tftpboot/ipxe.efi /tftpboot/ipxe-unsigned.efi

                    i could all instances of “ipxe.efi” with any one of these

                    intel.efi
                    ipxe.efi
                    realtek.efi
                    snp.efi
                    snponly.efi

                    thanks,
                    rob

                    1 Reply Last reply Reply Quote 0
                    • R
                      robertkwild
                      last edited by

                      @george1421 i get this error

                      c646b690-7e86-4ca9-b827-ae02242564b2-image.png

                      george1421G 1 Reply Last reply Reply Quote 0
                      • george1421G
                        george1421 Moderator @robertkwild
                        last edited by

                        @robertkwild What does your parameter block look for this menu item?

                        It should be similar to this if the error was generated when applying the enrollkeys.efi program.

                        chain tftp:/${fog-ip}/EnrollKeys.efi
echo Rebooting the system in 8 seconds
sleep 5
reboot

                        Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

                        R 1 Reply Last reply Reply Quote 0
                        • R
                          robertkwild @george1421
                          last edited by robertkwild

                          @george1421 thanks George il check my params for the enroll key entry

                          Just out of interest as I’m making the enrollkeys.efi using another laptop which has a more recent UEFI and secure boot keys, I know I need to export it to my fog server but what about dB.crt and dB.key, do I need to export these aswell to the fog server or can I use the ones already on there on the fog server?

                          This is because I have followed this howto on both systems, so I have 2 sets of crt and key files one on the fog server and one on the laptop

                          /opt/fog/secureboot/efitools/EnrollKeys.efi
                          /opt/fog/secureboot/efikeys/DB.crt
                          /opt/fog/secureboot/efikeys/DB.key

                          1 Reply Last reply Reply Quote 0
                          • R
                            robertkwild
                            last edited by robertkwild

                            @george1421 made it into all one script, even the mkkeys.sh

                            #!/bin/bash

apt-get update
apt-get upgrade -y

apt-get install -y openssl efitools gnu-efi git build-essential help2man libssl-dev
perl -e'use CPAN; install "File::Slurp"'

mkdir -p /opt/fog/secureboot/efikeys

cat << EOF > /opt/fog/secureboot/mkkeys.sh
#!/bin/bash
# Copyright (c) 2015 by Roderick W. Smith
# Updated 26-Nov-2021 by George1421 for the FOG Project
# Licensed under the terms of the GPL v3

NAME=FOGProjectSB

openssl req -new -x509 -newkey rsa:2048 -subj "/CN=$NAME PK/" -keyout efikeys/PK.key \
        -out efikeys/PK.crt -days 3650 -nodes -sha256
openssl req -new -x509 -newkey rsa:2048 -subj "/CN=$NAME KEK/" -keyout efikeys/KEK.key \
        -out efikeys/KEK.crt -days 3650 -nodes -sha256
openssl req -new -x509 -newkey rsa:2048 -subj "/CN=$NAME DB/" -keyout efikeys/DB.key \
        -out efikeys/DB.crt -days 3650 -nodes -sha256
openssl x509 -in efikeys/PK.crt -out efikeys/PK.cer -outform DER
openssl x509 -in efikeys/KEK.crt -out efikeys/KEK.cer -outform DER
openssl x509 -in efikeys/DB.crt -out efikeys/DB.cer -outform DER

GUID=`python3 -c 'import uuid; print(str(uuid.uuid1()))'`
echo $GUID > efikeys/myGUID.txt

cert-to-efi-sig-list -g $GUID efikeys/PK.crt efikeys/PK.esl
cert-to-efi-sig-list -g $GUID efikeys/KEK.crt efikeys/KEK.esl
cert-to-efi-sig-list -g $GUID efikeys/DB.crt efikeys/DB.esl
rm -f efikeys/noPK.esl
touch efikeys/noPK.esl

sign-efi-sig-list -t "$(date --date='1 second' +'%Y-%m-%d %H:%M:%S')" \
                  -k efikeys/PK.key -c efikeys/PK.crt PK efikeys/PK.esl efikeys/PK.auth
sign-efi-sig-list -t "$(date --date='1 second' +'%Y-%m-%d %H:%M:%S')" \
                  -k efikeys/PK.key -c efikeys/PK.crt PK efikeys/noPK.esl efikeys/noPK.auth
sign-efi-sig-list -t "$(date --date='1 second' +'%Y-%m-%d %H:%M:%S')" \
                  -k efikeys/PK.key -c efikeys/PK.crt KEK efikeys/KEK.esl efikeys/KEK.auth
sign-efi-sig-list -t "$(date --date='1 second' +'%Y-%m-%d %H:%M:%S')" \
                  -k efikeys/KEK.key -c efikeys/KEK.crt db efikeys/DB.esl efikeys/DB.auth

chmod 0600 efikeys/*.key

echo ""
echo ""
echo "For use with KeyTool, copy the *.auth and *.esl files to a FAT USB"
echo "flash drive or to your EFI System Partition (ESP)."
echo "For use with most UEFIs' built-in key managers, copy the *.cer files;"
echo "but some UEFIs require the *.auth files."
echo ""
EOF

chmod a+x /opt/fog/secureboot/mkkeys.sh
cd /opt/fog/secureboot/
./mkkeys.sh

git clone git://git.kernel.org/pub/scm/linux/kernel/git/jejb/efitools.git

cd /opt/fog/secureboot/efitools
make

mkdir -p /opt/fog/secureboot/hwkeys
cd /opt/fog/secureboot/

efi-readvar -v PK -o /opt/fog/secureboot/hwkeys/hw_PK.esl
efi-readvar -v KEK -o /opt/fog/secureboot/hwkeys/hw_KEK.esl
efi-readvar -v db -o /opt/fog/secureboot/hwkeys/hw_db.esl
efi-readvar -v dbx -o /opt/fog/secureboot/hwkeys/hw_dbx.esl
chmod 666 /opt/fog/secureboot/hwkeys/*

cp /opt/fog/secureboot/efikeys/* /opt/fog/secureboot/efitools/
cp /opt/fog/secureboot/hwkeys/* /opt/fog/secureboot/efitools/
cd /opt/fog/secureboot/efitools

cat hw_db.esl > DB.esl
cat hw_KEK.esl > KEK.esl
cat hw_dbx.esl > dbx.esl

rm LockDown*efi LockDown.so LockDown.o
make

cp LockDown-signed.efi EnrollKeys.efi

mkdir -p /tftpboot

cp /opt/fog/secureboot/efitools/EnrollKeys.efi /tftpboot

mv /var/www/html/fog/service/ipxe/bzImage /var/www/html/fog/service/ipxe/bzImage-unsigned
sbsign --key /opt/fog/secureboot/efikeys/DB.key --cert /opt/fog/secureboot/efikeys/DB.crt --output /var/www/html/fog/service/ipxe/bzImage /var/www/html/fog/service/ipxe/bzImage-unsigned

mv /var/www/html/fog/service/ipxe/bzImage32 /var/www/html/fog/service/ipxe/bzImage32-unsigned
sbsign --key /opt/fog/secureboot/efikeys/DB.key --cert /opt/fog/secureboot/efikeys/DB.crt --output /var/www/html/fog/service/ipxe/bzImage32 /var/www/html/fog/service/ipxe/bzImage32-unsigned

mv /var/www/html/fog/service/ipxe/refind.efi /var/www/html/fog/service/ipxe/refind-unsigned.efi
sbsign --key /opt/fog/secureboot/efikeys/DB.key --cert /opt/fog/secureboot/efikeys/DB.crt --output /var/www/html/fog/service/ipxe/refind.efi /var/www/html/fog/service/ipxe/refind-unsigned.efi


mv /tftpboot/ipxe.efi /tftpboot/ipxe-unsigned.efi
sbsign --key /opt/fog/secureboot/efikeys/DB.key --cert /opt/fog/secureboot/efikeys/DB.crt --output /tftpboot/ipxe.efi /tftpboot/ipxe-unsigned.efi

mv /tftpboot/snponly.efi /tftpboot/snponly-unsigned.efi
sbsign --key /opt/fog/secureboot/efikeys/DB.key --cert /opt/fog/secureboot/efikeys/DB.crt --output /tftpboot/snponly.efi /tftpboot/snponly-unsigned.efi

mv /tftpboot/snp.efi /tftpboot/snp-unsigned.efi
sbsign --key /opt/fog/secureboot/efikeys/DB.key --cert /opt/fog/secureboot/efikeys/DB.crt --output /tftpboot/snp.efi /tftpboot/snp-unsigned.efi
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