bad shim signature- you need to load the kernel first

[Corman]

First time installing Linux Mint or anything of the like. Upon booting up Linux Mint 21.1 Cinnamon on a Dell Inspiron 3147 I get the error: bad shim signature error: you need to load the kernel first. What are my next steps in correcting this? I greatly appreciate the help or if able to direct me to where I can find the information.

[myklt8]

I have the same issue

[myklt8]

I went into BIOS and disabled secure boot (I thought I had done this already) everything loaded perfectly after that

[SMG]

First time installing Linux Mint or anything of the like.

Welcome to the forum, Corman.

Are you able to boot to a live session of Linux Mint using the install usb? If so, please do that and open the System Reports app and click the System Information tab on the left. Your computer's information should come up in the right pane. Then click the Copy button in the lower right and paste the results into a reply window here so we can see how Linux Mint views your hardware.

When you installed Linux Mint 21.1, did you add the codecs during installation?
After installing, did you continue using Linux Mint and install any updates? (That's not a requirement, but some people do it.)

[stewschneider]

I've got the same issue and after a full day I've exhausted my vocabulary of obscenities. I cannot boot into a live session. Same complaint -- shim signature and load something first. If I blunder through I get a "security fault". I didn't consciously turn on secure booting and don't know how to check or change it. I've installed Linux Mint a jillion times and this is the first time I've had trouble. Help! Or at least loan me some of your profanities.
stewart

[SMG]

I cannot boot into a live session. Same complaint -- shim signature and load something first. If I blunder through I get a "security fault".

Some photos of the errors would be helpful. Many errors have some common words, but are different errors, so it is helpful to know the exact wording.

I didn't consciously turn on secure booting and don't know how to check or change it.

It is a setting in the BIOS/UEFI.

On what type of computer (make and model) are you trying to install?

[stewschneider]

The error is error: bad shim signature
error: you need to load the kernal first

[stewschneider]

The computer is an Asus Zen book. Brand new.

[SMG]

The computer is an Asus Zen book. Brand new.

That description encompasses quite a few laptop models. At this point, I do not know why you are getting the error.

Did you verify the ISO? How to verify ISO images

How did you create the install usb (what software did you use)?

I presume Windows is booting properly on this. Are you wanting to dual boot?

I do not recall if ASUS has the option available in BIOS/UEFI to disable Secure Boot. Have you checked for it? I know there are videos out on how to disable secure boot on ASUS laptops, but ASUS has continued to make changes so I'm not sure what might be valid for your model. While you should not have to disable it to get the live session to load, myklt8 did say that worked for them.

[MilesTheCool]

I went into BIOS and disabled secure boot (I thought I had done this already) everything loaded perfectly after that

I was having the same problem and about had a heart attack. This immediately fixed it! Thank you so much!!!!

[ETextor]

Thank you for the suggestion to disable Secure Boot in the BIOS. That solved it!

I've installed LM many times on HP systems (not on this laptop though) and hadn't encountered this issue before now.

[gosa]

Disabling Secure Boot did it for me as well... Dell Latitude 7480

[david]

Disabling the "Secure boot" in bios setup solves the problem. mine is a Dell Desktop.

[310y]

yeah, I had to reset the bios to get Intel Rapid Storage Tech off the bios, then had to update the bios and set to initial default. Then installed mint, then had to go back in and disable secure boot which is on as a default of course

[MsDaniels]

Disabling the "Secure boot" in bios setup solves the problem. mine is a Dell Desktop.

Worked for me too.

[NeXTLoop]

In my case, once I disabled Secure Boot and booted for the first time, i was then able to re-enable Secure Boot and it's been running just fine since. So if you need Secure Boot, you might give that a try.

[SMG]

In my case, once I disabled Secure Boot and booted for the first time, i was then able to re-enable Secure Boot and it's been running just fine since. So if you need Secure Boot, you might give that a try.

Yes, after you run all the updates then you can re-enable secure boot and it will work.

[Paintdog]

I went into BIOS and disabled secure boot (I thought I had done this already) everything loaded perfectly after that

I'm using a laptop - HP Notebook - 14-ma1311ng - and had the same issue. Entering BIOS with F10 and diabling secure boot solved my problem, too. I had hoped to get an information before or while installing Linux Mint . It was a little bit uncomfortable sitting in front of a laptop not booting and doing nothing then showing error messages.

[SMG]

I had hoped to get an information before or while installing Linux Mint .

Welcome to the forum, Paintdog.

The release notes specify one needs to disable secure boot.

Did you find out about the release from the official blog post or from somewhere else?

[Paintdog]

Thank you for the links; I'm new to linux (again) and I hadn't noticed that problem with secure boot. I'm using Vera at the moment.