WebJul 5, 2024 · What versions of grub and shim are you running? We disabled the old key that was used before the boothole CVE (we had been signing the kernel with both), but all currently shipping versions of grub and shim should work with the key that is signing. Comment 5darrell pfeifer2024-08-23 22:20:02 UTC grub2-efi-x64.x86_64 1:2.06-3.fc35 WebApr 7, 2024 · Questions about Grub, UEFI,the liveCD and the installer. Forum rules Before you post please read how to get help. Topics in this forum are automatically closed 6 months after creation. ... What exactly is a bad shim signature? Top. xenopeek Level 25 Posts: 28032 Joined: Wed Jul 06, 2011 8:58 am. Re: Bad shim signature?? Post ...
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WebMay 5, 2024 · Meaning if module_signing extended key usage is set, the signing cert is not considered valid by shim for the purposes of validating grub or linux kernel binaries. … WebDec 28, 2024 · Of course, each time I modified it, I ran sudo update-grub and rebooted to see if it had worked. The Ubuntu guys suggested many things, but the above code got … ireland deposit interest rates
[PATCH v3 8/8] efi: Add EFI shim lock verifier
WebAug 11, 2024 · To sign a custom kernel or any other EFI binary you want to have loaded by shim, you’ll need to use a different command: sbsign. Unfortunately, we’ll need the certificate in a different format in this case. Let’s convert the certificate we created earlier into PEM: openssl x509 -in MOK.der -inform DER -outform PEM -out MOK.pem WebAug 26, 2024 · I Get “bad Shim Signature” Booting With Secure Boot Enabled. If I enable Secure Boot in my UEFI I get this error (just after selecting CentOS from the grub menu) … WebJul 24, 2024 · custom kernel: bad shim signature. I upgraded my laptop bios this morning. Afterwards, only Windows would boot on my dual-boot UEFI system. I booted a live … ireland dfa