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To: John Baldwin <jhb@freebsd.org>
cc: Ngie Cooper <ngie@freebsd.org>, src-committers@freebsd.org,
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Subject: Re: svn commit: r316132 - head/sys/boot/i386/boot2
In-reply-to: <7448826.asYms2TLO2@ralph.baldwin.cx>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
References: <201703290930.v2T9U3x9087583@repo.freebsd.org>
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Date: Wed, 29 Mar 2017 21:36:05 +0000
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--------
In message <7448826.asYms2TLO2@ralph.baldwin.cx>, John Baldwin writes:
>On Wednesday, March 29, 2017 09:30:03 AM Ngie Cooper wrote:

>> Log:
>>   Parameterize out 7680 (15 * 512) as BOOT2SIZE, similar to sys/boot/i3=
86/zfsboot/...
>>   =

>>   This is being done to make it easier to change in the future--this ac=
tion might be
>>   needed sooner rather than later because of gcc 6.3.0 bailing, stating=
 that there
>>   is negative free space left (deficit) in the boot2 bootloader.
>>   =

>>   MFC after:	2 months
>>   Sponsored by:	Dell EMC Isilon
>
>This can't be changed.  It's baked into the BSD disklabel format.

No it is not, it is baked into FFS, and for UFS2 0, 8, 64 and 256K works.

-- =

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    =

Never attribute to malice what can adequately be explained by incompetence=
.