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From: | adrian15 |
Subject: | Re: Does grub-mkrescue support UEFI hybrid USB/DVD images? |
Date: | Sun, 25 Jan 2015 09:03:46 +0100 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.2.0 |
El 24/01/15 a las 01:12, adrian15 escribió:
El 22/01/15 a las 22:25, Kris Moore escribió:Hey all, We are trying to create hybrid USB/DVD images, and they work just fine on BIOS. However it doesn't seem to work when creating UEFI. We are using the following: # grub-mkrescue -d "/usr/local/lib/grub/x86_64-efi" -o <outfile> <dir> -- -volid "OURLABEL" This image does boot UEFI via DVD, but when copied to a USB stick with dd it fails to boot with the following:Hi, I'm going to describe what I use for making a USB/CDROM EFI/x86 hybrid image for building SG2D (An improved Grub2 Disk). But my question (after reading other replies to this question) is why Grub2 should be patched for what he wants ? Is it a non standard EFI boot maybe? Thank you. Debian way ==========
I just wanted to say that recipe does not produce an image that can be booted from UEFI hard disk.
I had assumed all this time that it worked (I only tested the EFI CDROM boot) because if you read it here:
https://www.gnu.org/software/grub/manual/html_node/Making-a-GRUB-bootable-CD_002dROM.html#Making-a-GRUB-bootable-CD_002dROM grub-mkrescue -o grub.iso isoThis produces a file named grub.iso, which then can be burned into a CD (or a DVD), or written to a USB mass storage device.
So, if I'm not mistaken that's not true when you boot from EFI (Well, I know that you are fixing it on this thread).
adrian15 --Support free software. Donate to Super Grub Disk. Apoya el software libre. Dona a Super Grub Disk. http://www.supergrubdisk.org/donate/
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