From: adrian15 <adrian15sgd@gmail.com>
To: The development of GRUB 2 <grub-devel@gnu.org>
Subject: Re: Does grub-mkrescue support UEFI hybrid USB/DVD images?
Date: Sun, 25 Jan 2015 09:03:46 +0100 [thread overview]
Message-ID: <54C4A362.90206@gmail.com> (raw)
In-Reply-To: <54C2E368.4040506@gmail.com>
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 iso
This 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
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next prev parent reply other threads:[~2015-01-25 8:03 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-22 21:25 Does grub-mkrescue support UEFI hybrid USB/DVD images? Kris Moore
2015-01-22 22:15 ` Vladimir 'φ-coder/phcoder' Serbinenko
2015-01-23 9:40 ` Andrei Borzenkov
2015-01-23 9:45 ` Vladimir 'φ-coder/phcoder' Serbinenko
2015-01-23 10:10 ` Andrei Borzenkov
2015-01-23 10:14 ` Thomas Schmitt
2015-01-23 14:40 ` Kris Moore
2015-01-23 16:18 ` Thomas Schmitt
2015-01-23 17:58 ` Andrei Borzenkov
2015-01-23 18:27 ` Thomas Schmitt
2015-01-23 18:29 ` Vladimir 'φ-coder/phcoder' Serbinenko
2015-01-23 18:38 ` Andrei Borzenkov
2015-01-23 19:03 ` Andrei Borzenkov
2015-01-24 0:12 ` adrian15
2015-01-25 8:03 ` adrian15 [this message]
2015-01-25 8:15 ` adrian15
2015-01-25 10:51 ` adrian15
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