Author: rnoland
Date: Wed Oct 14 19:24:01 2009
New Revision: 198097
URL: http://svn.freebsd.org/changeset/base/198097
Log:
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.
Approved by: marcel
MFC after: 2 weeks
Modified:
head/sys/geom/part/g_part_gpt.c
Modified: head/sys/geom/part/g_part_gpt.c
==============================================================================
--- head/sys/geom/part/g_part_gpt.c Wed Oct 14 18:50:43 2009
(r198096)
+++ head/sys/geom/part/g_part_gpt.c Wed Oct 14 19:24:01 2009
(r198097)
@@ -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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