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I'm trying to boot the latest ISO image of Elementary OS from my USB with GRUB.

I use the same GRUB configuration that I use with Ubuntu images, which works fine, and since Elementary is Ubuntu based, I thought it would work as well.

But I get the error:

(initramfs) unable to find a medium containing a live file system

To an extent, I understand this error, which I sort out adding in the GRUB where to find the ISO image:

set root='(hd0,1)'
set iso_path=/elementaryos-5.1-stable.20191202.iso
loopback loop $iso_path

menuentry "Try or install elementary OS" {
 linux (loop)/casper/vmlinuz boot=casper iso-scan/filename=$iso_path maybe-ubiquity quiet splash
 initrd (loop)/casper/initrd.lz
}

I tried with findiso=$iso_path which works on Debian, but the result is the same. What other GRUB configurations could I try? I prefer not to unpack the ISO to make things work.

I check the mdsum of the ISO, it's OK.

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  • It seems that within the initrd.lz I couldn't find the logic for looking up the iso. Maybe that's why? – Chen Xing Dec 12 '19 at 5:29
  • Try rebooting few times...I don't know why, but sometimes ISO from usb doesn't work and sometimes does... – Leon Jan 10 at 22:27
0

Partial solution:

Using the vmlinuz and initrd from an Ubuntu ISO, I could boot Eos.

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  • Which version of elementary did you use? Version 5.1 is different to 5.0, as I can boot 5.0 with default GRUB config from GLIM Multiboot Maker, but not with 5.1. – Ade Malsasa Akbar Jan 21 at 11:00
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    @AdeMalsasaAkbar I'm using 5.1 – guillermo chamorro Jan 29 at 18:36
  • how did you do it? You copied vmlinuz file from existing Ubuntu ISO into elementary 5.1 ISO? Or something different? I want to make a working multiboot USB to ship it to friend in other island. – Ade Malsasa Akbar Jan 30 at 3:02
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    @AdeMalsasaAkbar I copied vmlinuz and initrd into the usb, the location could be any, I just put them in a folder called eos. Then int the grub.cfg I changed the parameters linux and initrd: linux /eos/vmlinuz and initrd /eos/initrd. If you have any doubt I can extend my answer explaining my grub configuration. – guillermo chamorro Feb 4 at 22:00
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Utiliza Rufus para bootear.

Sigue los siguientes pasos:

https://elementary.io/docs/installation#creating-an-installation-medium

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  • 1
    Thanks. It's not about getting any bootable USB, but having one using GRUB. For rufus you need windows, which is what I want to avoid. – guillermo chamorro Jan 6 at 1:04

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