Date: Sun, 12 Jul 2015 11:34:14 +0200 From: Kurt Jaeger <lists@opsec.eu> To: Allan Jude <allanjude@freebsd.org> Cc: freebsd-current@freebsd.org Subject: Re: Lenovo BIOS boot fix Message-ID: <20150712093414.GI49099@home.opsec.eu> In-Reply-To: <55A1FFD5.7080008@freebsd.org> References: <55A1FFD5.7080008@freebsd.org>
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Hi! > I have spent my weekend researching why my Lenovo X220s refuse to boot > from GPT partitioned disks. > > Based on this mailing list post: > https://lists.freebsd.org/pipermail/freebsd-i386/2013-March/010437.html > > I have written a patch for gpart to change the way the PMBR is created. > > Instead of writing the 0xee partition in the first slot (offset 0), it > writes it to the 2nd slot (offset 1). > > This resolves the issue on my Lenovo X220s, and the installed image > boots fine on my T530, and various other non-lenovo amd64 machines at my > house. > > If others could please test this image (it is a pre-installed system, so > just dd it to a memory stick, and see if it boots. Can be safely done > without touching your disks), that would be most helpful. I used the image, put it on a stick, and set the BIOS to boot uefi-only or gpt-only and it never booted ? It's early sunday morning, it was a long week, so maybe I just missed something I'm supposed to do ? BIOS is 1.39. -- pi@opsec.eu +49 171 3101372 5 years to go !
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