From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 0FAC61381F3 for ; Sat, 20 Jul 2013 05:43:24 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 2F060E093A; Sat, 20 Jul 2013 05:43:15 +0000 (UTC) Received: from hrndva-omtalb.mail.rr.com (hrndva-omtalb.mail.rr.com [71.74.56.122]) by pigeon.gentoo.org (Postfix) with ESMTP id 4918DE08EA for ; Sat, 20 Jul 2013 05:43:14 +0000 (UTC) X-Authority-Analysis: v=2.0 cv=KJ7Y/S5o c=1 sm=0 a=68NkTaeYMVLl2m++3813FQ==:17 a=i4YerQ4AwY4A:10 a=aDFcgwbDSBsA:10 a=DvSzqBOGy98A:10 a=pedpZTtsAAAA:8 a=ayC55rCoAAAA:8 a=KGjhK52YXX0A:10 a=qWF_DJi8R4MA:10 a=a5FPzcLdAAAA:8 a=Br9LfDWDAAAA:8 a=QpOYhjxgAAAA:8 a=qppG-Meu5jUlak84INMA:9 a=68NkTaeYMVLl2m++3813FQ==:117 X-Cloudmark-Score: 0 X-Authenticated-User: X-Originating-IP: 74.130.200.176 Received: from [74.130.200.176] ([74.130.200.176:28589] helo=localhost) by hrndva-oedge04.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id 6D/EA-02415-1732AE15; Sat, 20 Jul 2013 05:43:13 +0000 Date: Sat, 20 Jul 2013 05:43:13 +0000 Message-ID: <6D.EA.02415.1732AE15@hrndva-omtalb.mail.rr.com> From: "Thomas Mueller" To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] SSD partitioning and migration - caveat Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org X-Archives-Salt: 4f2bdbf8-3be0-4e45-bb8c-8200b42fbe20 X-Archives-Hash: 82e7ee8400a9f88a20ab29f4fad8f729 from luis jure : > on 2013-07-20 at 09:51 William Kenworthy wrote: > You have to map the drive so grub can find it: > no, i don't think that's the problem. > the problem is that with GPT disks you need a BIOS Boot Partition since > they don't have a MBR. is that correct? > https://wiki.archlinux.org/index.php/GRUB#Install_to_GPT_BIOS_boot_partition > http://www.anchor.com.au/blog/2012/10/the-difference-between-booting-mbr-and-gpt-with-grub/ I think to boot directly from a hard drive, you would need a BIOS Boot Partition or EFI System Partition, depending on whether the motherboard has legacy BIOS or UEFI. I still boot from a USB stick or System Rescue CD with Syslinux or isolinux and the GRUB2 giant-floppy image (not intended to be written to any actual floppy disk). I have also made FreeBSD and NetBSD installations on GPT-partitioned USB sticks without any GRUB, using a boot partition (FreeBSD) or installboot in the root partition (NetBSD), not sure how to do this with Linux. But this only works when one OS is installed on the drive, quite OK for a USB stick in most cases. Tom