Author: rnoland
Date: Fri Oct 30 15:45:40 2009
New Revision: 198677
URL: http://svn.freebsd.org/changeset/base/198677
Log:
MFC r198097
Set the active flag in the PMBR when we install bootcode on a GPT
partitioned disk. Some BIOS require this to be set before they will
boot the device.
Modified:
stable/7/sys/ (props changed)
stable/7/sys/contrib/pf/ (props changed)
stable/7/sys/geom/part/g_part_gpt.c
Modified: stable/7/sys/geom/part/g_part_gpt.c
==============================================================================
--- stable/7/sys/geom/part/g_part_gpt.c Fri Oct 30 15:45:00 2009
(r198676)
+++ stable/7/sys/geom/part/g_part_gpt.c Fri Oct 30 15:45:40 2009
(r198677)
@@ -376,6 +376,9 @@ g_part_gpt_bootcode(struct g_part_table
codesz = MIN(codesz, gpp->gpp_codesize);
if (codesz > 0)
bcopy(gpp->gpp_codeptr, table->mbr, codesz);
+
+ /* Mark the PMBR active since some BIOS require it */
+ table->mbr[DOSPARTOFF] = 0x80; /* status */
return (0);
}
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