Gentoo Archives: gentoo-user

From: R0b0t1 <r030t1@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] Re: MBR & GPT dual compliant format
Date: Fri, 29 Jul 2016 14:27:34
Message-Id: CAAD4mYjAphn3wEQcQKtrVPZkvNDA0jug_kg2Ntxo18=aP47H0w@mail.gmail.com
In Reply to: Re: [gentoo-user] Re: MBR & GPT dual compliant format by Mick
1 Fri, Jul 29, 2016 at 12:41 AM, Mick <michaelkintzios@×××××.com> wrote:
2 > On Thursday 28 Jul 2016 18:36:52 David Haller wrote:
3 >> Hello,
4 >>
5 >> On Tue, 26 Jul 2016, James wrote:
6 >> [..]
7 >>
8 >> Well, the best I found is this on the gdisk homepage:
9 >> http://www.rodsbooks.com/gdisk/hybrid.html
10 >>
11 >> Basically, you shouldn't. The article tackles most aspects and
12 >> pitfalls.
13 >>
14 >> [..]
15 >> > #parted -l /dev/sda
16 >> > Model: ATA WDC WD20EARX-00P (scsi)
17 >> > Disk /dev/sda: 2000GB
18 >> > Sector size (logical/physical): 512B/4096B
19 > ^^^^^^
20 > It seems you did not use gdisk or a late version of parted to created the
21 > partition table? Modern partition tools align the logical and physical
22 > sectors to 4096B.
23
24 It can be changed. SSDs are best used with 512B sectors. But, err...
25
26 > James should set the boot flag in the partition table for /dev/sda1 and mount
27 > it under /boot (or /boot/EFI) in fstab.
28 >
29 >> By following the example in the above webpage, it worked on a file.
30 >> But it is rather sure to fail if you need more than 3 partitions (as
31 >> one is taken for the GPT, that leaves 3 more primary ones in the MBR
32 >> and logical partitions is doomed to fail.
33 >>
34
35 The protective MBR can point to another one and you can select which
36 GPT partitions are in it. But that's getting into some rube goldberg
37 action.

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Subject Author
Re: [gentoo-user] Re: MBR & GPT dual compliant format james <garftd@×××××××.net>