How to install newer kernel

[z2]

I’d like to install the latest kernel from http://download.opensuse.org/repositories/Kernel:/stable/standard/ in order to test some hardware compatibility.

From what I’ve found online the two options are basically just to specify the kernel version during install:

zypper in kernel-default-4.20....

or

zypper dup --from kernel....

The first option results in a “must first load kernel” error (or something very similar to that) after selecting the kernel from the grub boot menu.
The second option requests that I uninstall the current kernel with the vendor change to the new repository. I’d like to avoid uninstalling the current kernel. I have multiple kernel versions enabled in the zypp.conf file.

So, my question is, how do I install the new kernel alongside the current Leap 15 kernel while also getting it to boot from grub? Do I just need to update grub somehow, and if so, how should I go about it.? I’m using UEFI boot with multiple hard drives, if that makes any difference.

Thanks.

[z2]

Update: It doesn’t matter which method I use to install a newer kernel, both result in

error: you must load the kernel first

when attempting to boot.

[malcolmlewis]

@z2

Update: It doesn’t matter which method I use to install a newer kernel, both result in

error: you must load the kernel first

when attempting to boot.

Hi
I replied in the other thread on what I did to add 4.20.x from the kernel:stable repository…

[nrickert]

@z2

The first option results in a “must first load kernel” error (or something very similar to that) after selecting the kernel from the grub boot menu.

Disable secure-boot in your UEFI firmware (or BIOS).

The kernel that you just installed is signed by a different key, and not recognized by your boot setup. There are other ways around this, but disabling secure-boot is the easiest and quickest.