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-rw-r--r--mbr/gptmbr.S1
1 files changed, 1 insertions, 0 deletions
diff --git a/mbr/gptmbr.S b/mbr/gptmbr.S
index 85b9fcdf..77408b75 100644
--- a/mbr/gptmbr.S
+++ b/mbr/gptmbr.S
@@ -204,6 +204,7 @@ boot:
popw %dx /* dl -> drive number */
popw %di /* es:di -> $PnP vector */
popw %es
+ movl $0x54504721,%eax /* !GPT magic number */
cli
jmpw *%sp /* %sp == bootsec */