git: hammer2 hammer2 - correct icrc generation for sector 0

[Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxxxxx>]

commit 85f1fb965356993b2de2506583f6a93179b14237
Author: Matthew Dillon <dillon@apollo.backplane.com>
Date:   Fri Feb 10 10:09:25 2012 -0800

    hammer2 - correct icrc generation for sector 0
    
    * Correct the icrc generation for sector 0. Other icrc's are also stored
      in sector 0 and have be generated first.
    
    * Write the volume header out to all volume header alternates.  All four
      are, in fact, master copies.  The mount code will find the best one.

Summary of changes:
 sbin/newfs_hammer2/newfs_hammer2.c |   70 ++++++++++++++++++++++--------------
 1 files changed, 43 insertions(+), 27 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/85f1fb965356993b2de2506583f6a93179b14237


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