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Posted: **Wed Oct 16, 2019 2:30 pm**

Hello!
I compile kernel in elf format called kernel-0, and move it to the iso/boot folder, where I create the grub folder and the grub.cfg with such content:

grub.cfg

Code: Select all

menuentry 'kernel 0' {
	set root='hd0,msdos1'
	multiboot /boot/kernel-0 ro
}

When I try to boot from it I see a grub window where I can select kernel-0, if I select it I see the error "unknown filesystem".

Previously, my iso image would immediately run kernel.h and everything worked
(due to the fact that I have no brains, I deleted the files that were responsible for normal operation .ISO image)

Posted: **Wed Oct 16, 2019 2:38 pm**

Delete the "set root" line and the "ro" from the end of the next line. You are not using a hard disk.

Posted: **Wed Oct 16, 2019 2:42 pm**

iansjack wrote:Delete the "set root" line and the "ro" from the end of the next line. You are not using a hard disk.

Thanks you.

Posted: **Wed Oct 16, 2019 11:30 pm**

iansjack wrote:Delete the "set root" line and the "ro" from the end of the next line. You are not using a hard disk.

Hey, please tell me how to load the kernel by default, and not choose it manually?

Posted: **Thu Oct 17, 2019 1:04 am**

add the lines

Code: Select all

set default=0
set timeout=0

at the head of the file (before "menuentry").

You should consult the grub documentation for more details.

Posted: **Thu Oct 17, 2019 1:32 am**

iansjack wrote:add the lines
Code: Select all
set default=0
set timeout=0
at the head of the file (before "menuentry").

You should consult the grub documentation for more details.

Thanks.

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grub2 does not load my kernel?

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