svn commit: r198676 - in stable/8/sys: . amd64/include/xen cddl/contrib/opensolaris contrib/dev/acpica contrib/pf dev/xen/xenpci geom/part

Robert Noland rnoland at FreeBSD.org
Fri Oct 30 15:45:00 UTC 2009


Author: rnoland
Date: Fri Oct 30 15:45:00 2009
New Revision: 198676
URL: http://svn.freebsd.org/changeset/base/198676

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/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)
  stable/8/sys/dev/xen/xenpci/   (props changed)
  stable/8/sys/geom/part/g_part_gpt.c

Modified: stable/8/sys/geom/part/g_part_gpt.c
==============================================================================
--- stable/8/sys/geom/part/g_part_gpt.c	Fri Oct 30 13:03:08 2009	(r198675)
+++ stable/8/sys/geom/part/g_part_gpt.c	Fri Oct 30 15:45:00 2009	(r198676)
@@ -382,6 +382,9 @@ 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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