Re: OT: How to load kernels in EFI setup.

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On 9/3/21 10:37 PM, Michael D. Setzer II via users wrote:
Have a project that I've maintained since 2004.
Have a simple process to add it to the regular grub boot
list using the 40_custom with the following lines.

menuentry G4L {
	linux /bz5x13.14 root=/dev/ram0
	initrd /ramdisk.lzma
}

Just copy the kernel and ramdisk.lzma to /boot and it
becomes an option in the grub menu.

Just had a use that got 140 new Dell machines, and they
seem to no longer support any bios boot?? So, EFI is the
only option.

Have the EFI kernel options set, but haven't found info on
how to make an efi boot. I've looked, but I've not seen
anything. Did find one page that talks about just copying
kernel files to the efi direct with a minor rename and
including System.map file, but doesn't say anything about
the filesystem?

Anyone know of a web page. Currently, the user is pulling
drive out, and connecting it to an older machine to make
images.

I'm going to assume that you're saying you work on Ghost for Linux which can BIOS boot and you want to have it work with EFI, but don't know how to set it up.

What do you mean that you have "the EFI kernel options set"? Are you referring to the kernel compile options? If you have that, then it should be ready. You don't need any specific filename and I don't think you need the System.map file. If you are booting in EFI mode, grub will automatically do an efi boot of the kernel. However, unless you're signing the kernel and have added the keys, you will need to disable secure boot.

Do an EFI install of Fedora to see how it's all laid out.
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