Date: Mon, 06 Oct 2014 20:13:13 -0400 From: Adam McDougall <mcdouga9@egr.msu.edu> To: freebsd-stable@freebsd.org Cc: Glen Barber <gjb@freebsd.org> Subject: Re: Media image names - Document & rationalise. Message-ID: <54333019.9010304@egr.msu.edu> In-Reply-To: <88376822.lFZdKxbhSR@ralph.baldwin.cx> References: <201410011358.s91DwOXJ033137@fire.js.berklix.net> <CAPyFy2DYkYwPD_6Hm6c1wyyDjVRmSAqVnGumXYfm_k6-Jo4MTA@mail.gmail.com> <CAOgwaMuTPtKUk=2q=bcObr8So9DpGx%2Bo9y6DvCyPPP1y4ZKEXw@mail.gmail.com> <88376822.lFZdKxbhSR@ralph.baldwin.cx>
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On 10/06/2014 16:34, John Baldwin wrote: > I believe the issue here as I discussed with Marcel last year is that the x86 > installer needs to tell gpart to set the active flag on the dummy MBR slice in > the PMBR if GPT is being used without EFI (the installer knows if it is booted > via EFI or not). I ran into this today too with 10.1-RC1 (and recent 11 I think) on a BIOS based desktop freshly liberated from windows. It would not boot. I got it going with gpart but as a new user I'd be in trouble. > > In 9.2 and older, the flag was always set, but that violated the EFI spec and > broke several systems, so in 9.3 and later, gpart was changed to not set the > flag by default. However, we should still set it for non-EFI booting via GPT > to cater to broken BIOSes (such as yours). >
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