svn commit: r316064 - head/sys/boot/i386/boot2

[Poul-Henning Kamp]

--------
In message <201703281555.v2SFtoSU005538 at pdx.rh.CN85.dnsmgr.net>, "Rodney W. Gri
mes" writes:

>I think we still have an 8k size limit on boot1 for ffs/(ufs1 or ufs2)

Having a former release-engineer & disk-I/O renovator on the UFS2
team took care of that:  We tried to be future compatible, and UFS2
will look four different places for the superblock: +64k, +8k, +0k
and +256k, (the latter named SBLOCK_PIGGY because somebody senior
thought even 64k was an outrageous waste of space :-)

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at 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.