Date: Mon, 9 Aug 2021 15:19:42 -0700 From: John W <jwdevel@gmail.com> To: freebsd-hackers@freebsd.org Subject: Re: Tracking down BTX behavior change. Message-ID: <CADO30srWi83NMV1SJ8BtB5H3Z0-zkqH2ZQ7EqVGwwg2zXFRfJg@mail.gmail.com> In-Reply-To: <CADO30sobpRkK7WNeXcYZ7wNfveqPm22M_3qDLB0EZLebyJ=SbQ@mail.gmail.com> References: <CADO30sobpRkK7WNeXcYZ7wNfveqPm22M_3qDLB0EZLebyJ=SbQ@mail.gmail.com>
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Ah, forgot the bug link: [1] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=257722 On 8/9/21, John W <jwdevel@gmail.com> wrote: > I have a problem on my system where 11.3 boots fine, but any supported > release (11.4, 12.2, 13.0) fail during the BTX stage. There's a bug > report if you're interested[1] > > But my question is: how can I track down differences in BTX code? I > have the 11.3 and 11.4 SVN sources checked out, and so far I am not > able to find any differences. > > So far, I am looking in: src/stand/i386/btx/ and src/usr.sbin/btxld > > I am on amd64, and I do not see any /amd64/ directory, so I am just > guessing that /i386/ is what I want. > > Also: given that the 11.3 boot code works fine, I wonder: what are the > ramifications of using it on an 11.4 system? > > I am not really experienced with the boot loader process, so am not > sure what the dangers involved are. > Certainly, I am able to boot in to the new (11.4) kernel with the old > userland installed. But my woes happened when I did 'make > installworld', which presumably updated the boot code. > > Would it be reasonable to manually roll back the boot code to 11.3, > but keep the 11.4 userland? Again, I'm really not sure the > ramifications, just trying to make my system usable again. > > Thanks > -John >
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