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Re: [PATCH] sparc64: add bios boot partition support
From: |
Daniel Kiper |
Subject: |
Re: [PATCH] sparc64: add bios boot partition support |
Date: |
Thu, 7 Mar 2019 20:11:13 +0100 |
User-agent: |
NeoMutt/20170113 (1.7.2) |
On Wed, Mar 06, 2019 at 08:56:53AM -0700, Eric Snowberg wrote:
> > On Mar 6, 2019, at 3:52 AM, Daniel Kiper <address@hidden> wrote:
> > On Mon, Mar 04, 2019 at 05:34:01PM -0800, Eric Snowberg wrote:
> >> Add BIOS Boot Partition support for sparc64 platforms. This will work a
> >> little different than x86. With GPT, both the OBP "load" and "boot"
> >> commands
> >> are partition aware and neither command can see the partition table.
> >> Therefore
> >> the entire boot-loader is stored within the BIOS Boot Partition and nothing
> >> is stored within the bootstrap code area of MBR.
> >>
> >> To use it, the end user will issue the boot command with the path pointing
> >> to
> >> the BIOS Boot Partition.
> >>
> >> For example with the disk below:
> >>
> >> Model: Unknown (unknown)
> >> Disk /dev/nvme1n1: 1600GB
> >> Sector size (logical/physical): 512B/512B
> >> Partition Table: gpt
> >>
> >> Number Start End Size File system Name Flags
> >> 1 1049kB 1075MB 1074MB ext3
> >> 2 1075MB 1076MB 1049kB bios_grub
> >> 3 1076MB 1600GB 1599GB lvm
> >>
> >> To boot grub2 from OBP, you would use:
> >>
> >> boot
> >> /address@hidden/address@hidden/address@hidden/address@hidden/address@hidden/address@hidden:b
> >>
> >> Signed-off-by: Eric Snowberg <address@hidden>
> >
> > Have you tested this patch on the other platforms?
> > If yes then I am OK with the patch.
>
> It has been tested on x86 and SPARC. It is my understanding that x86
> and SPARC are the only two platforms that can use this file. If that
> is not correct, let me know.
Great! So, Reviewed-by: Daniel Kiper <address@hidden>
Again, thank you for doing the SPARC work!
Daniel