From: Stephen Warren <swarren@wwwdotorg.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 5/7] disk: Allow alternate EFI partition signature
Date: Mon, 15 Oct 2012 09:19:35 -0600 [thread overview]
Message-ID: <507C2987.5030408@wwwdotorg.org> (raw)
In-Reply-To: <1350087972-1581-5-git-send-email-sjg@chromium.org>
On 10/12/2012 06:26 PM, Simon Glass wrote:
> From: Stefan Reinauer <reinauer@chromium.org>
>
> ChromeOS uses a GPT partition table to partition the disk.
> However, Windows will refuse to install on a GPT partitioned
> disk if there is no EFI available (Even if there is an MBR, too)
> To hide the GPT partition table from Windows, we need to write
> it with a header magic other than "EFI PART". To support old
> and new systems, Check for the magic string "CHROMEOS" too.
Surely if you wanted to install Windows on a disk containing ChromeOS,
you would just wipe the disk and re-partition it? I suppose perhaps
you're talking about dual-boot though?
Either way, it doesn't see like a good idea to be using non-standard EFI
signatures - especially if the idea is to hide the GPT from Windows, and
presumably then have Windows use the MBR partitions, since that will end
up with a decidedly non-standard partition setup; some partitions will
only be represented in the MBR (those Windows creates) and some in GPT
(presumably whatever ChromeOS created before).
next prev parent reply other threads:[~2012-10-15 15:19 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-13 0:26 [U-Boot] [PATCH 1/7] ide: Add printf format string for CONFIG_SYS_64BIT_LBA option Simon Glass
2012-10-13 0:26 ` [U-Boot] [PATCH 2/7] usb: Support the " Simon Glass
2012-10-13 2:01 ` Marek Vasut
2012-10-13 0:26 ` [U-Boot] [PATCH 3/7] disk: Make the disk partition code work with no specific partition types Simon Glass
2012-10-13 0:26 ` [U-Boot] [PATCH 4/7] disk: Address cast and format errors Simon Glass
2012-10-13 0:26 ` [U-Boot] [PATCH 5/7] disk: Allow alternate EFI partition signature Simon Glass
2012-10-15 15:19 ` Stephen Warren [this message]
2012-10-15 17:17 ` Stefan Reinauer
2012-10-16 17:58 ` Stephen Warren
2012-10-17 23:36 ` Tom Rini
2012-10-17 23:39 ` Stefan Reinauer
2012-10-17 23:49 ` Simon Glass
2012-10-13 0:26 ` [U-Boot] [PATCH 6/7] fs: Add a Coreboot Filesystem (CBFS) driver and commands Simon Glass
2012-10-22 15:22 ` Tom Rini
2012-10-31 22:28 ` Simon Glass
2012-10-31 22:41 ` Wolfgang Denk
2012-11-01 1:22 ` Tom Rini
2012-11-02 2:23 ` Simon Glass
2012-11-03 15:04 ` Wolfgang Denk
2012-11-03 21:11 ` Simon Glass
2012-11-05 22:19 ` Simon Glass
2012-11-06 7:27 ` Wolfgang Denk
2012-11-06 22:13 ` Simon Glass
2012-11-06 22:23 ` Wolfgang Denk
2012-11-06 22:35 ` Simon Glass
2012-11-07 12:38 ` Wolfgang Denk
2012-11-07 16:18 ` Simon Glass
2012-10-13 0:26 ` [U-Boot] [PATCH 7/7] config: Enable CBFS, ext4 for coreboot Simon Glass
2012-10-22 20:38 ` Tom Rini
2012-10-23 5:36 ` Simon Glass
2012-10-22 21:05 ` [U-Boot] [PATCH 1/7] ide: Add printf format string for CONFIG_SYS_64BIT_LBA option Tom Rini
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