Taken from: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=906414.

Author: Lukas Schwaighofer <lukas@schwaighofer.name>
Description: Strip the .note.gnu.property section for the mbr. This section is
 added since binutils Debian version 2.31.1-2 and causes mbr.bin to grow in
 size beyond what can fit into the master boot record.
---
 mbr/i386/mbr.ld   | 1 +
 mbr/x86_64/mbr.ld | 1 +
 2 files changed, 2 insertions(+)

diff --git a/mbr/i386/mbr.ld b/mbr/i386/mbr.ld
index d14ba80..5368346 100644
--- a/mbr/i386/mbr.ld
+++ b/mbr/i386/mbr.ld
@@ -70,4 +70,5 @@ SECTIONS
   .debug_typenames 0 : { *(.debug_typenames) }
   .debug_varnames  0 : { *(.debug_varnames) }
   /DISCARD/ : { *(.note.GNU-stack) }
+  /DISCARD/ : { *(.note.gnu.property) }
 }
diff --git a/mbr/x86_64/mbr.ld b/mbr/x86_64/mbr.ld
index ae27d49..b8c0d89 100644
--- a/mbr/x86_64/mbr.ld
+++ b/mbr/x86_64/mbr.ld
@@ -69,4 +69,5 @@ SECTIONS
   .debug_typenames 0 : { *(.debug_typenames) }
   .debug_varnames  0 : { *(.debug_varnames) }
   /DISCARD/ : { *(.note.GNU-stack) }
+  /DISCARD/ : { *(.note.gnu.property) }
 }