CVS commit: [netbsd-6] src/distrib/utils/sysinst

["Jeff Rizzo" <riz%netbsd.org@localhost>]

Module Name:    src
Committed By:   riz
Date:           Tue Jun 12 19:19:21 UTC 2012

Modified Files:
        src/distrib/utils/sysinst [netbsd-6]: mbr.c

Log Message:
Pull up following revision(s) (requested by tsutsui in ticket #317):
        distrib/utils/sysinst/mbr.c: revision 1.91
Fix regression by my dumb patch in PR/45990.
sysinst fails with "floating exception" after
changing MBR partition size in MBR editor menu
if the target disk doesn't have valid MBR partition
or has a valid partition 0 whose offset is not 1MB aligned
(like 63 sectors).
read_mbr() (which calls get_ptn_alignment()) is called
before set_bios_geom(), so bhead is not initialized there
and ptn_alignment could be zero.
To workaround, explicitly call get_ptn_alignment() again
in edit_mbr() to update ptn_alignemnt per BIOS geom values.


To generate a diff of this commit:
cvs rdiff -u -r1.89.2.1 -r1.89.2.2 src/distrib/utils/sysinst/mbr.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.