In the first instance have a look at the 'linux' lines here:
https://gist.github.com/smoke/47f5250b9e6f59a5d172
You've missed some critical parameters, like 'cdroot'.
On Mon, 30 Sep 2019 at 11:01, akater <nuclearsp...@gmail.com> wrote:
>
> I downloaded a recent (20190925) Minimal Installation amd64 image and
> tried to boot into it from a USB device. An old version of
> SystemRescueCD is installed alongside and boots fine.
>
> The machine is fairly old and has traditional BIOS and 2048M RAM
>
> My GRUB menuentry for the image is
>
> menuentry "Gentoo Minimal Installation CD 20190925" {
> search --no-floppy --fs-uuid --set=root
> 6dbfd182-36fb-4476-a414-f5a8cca975bb
> set iso=/install-amd64-minimal-20190925.iso
> loopback loop ${iso}
> linux (loop)/boot/gentoo keymap=dvorak nosound nonfs isoloop=${iso}
> initrd (loop)/boot/gentoo.igz
> }
>
> Boot fails at determining root device:
> !! Could not find the root block device in .
>
> I guess menuentry might be misconfigured but I can't figure out what's
> wrong with it. Minimal Installation CD is supposed to be bootable even
> in the absence of external storage devices, so everything should happen
> inside RAM, right? If so, then I don't get what could possibly go wrong
> as long as kernel and initrd are found unless there's an issue with
> Minimal Installation CD itself.
--
Regards,
Mick
