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-rw-r--r--src/arch/i386/image/bootsector.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/arch/i386/image/bootsector.c b/src/arch/i386/image/bootsector.c
index faf21c6fc..ab3cf94c2 100644
--- a/src/arch/i386/image/bootsector.c
+++ b/src/arch/i386/image/bootsector.c
@@ -87,7 +87,7 @@ int call_bootsector ( unsigned int segment, unsigned int offset,
"xorl %%eax, %%eax\n\t"
"xorl %%ebx, %%ebx\n\t"
"xorl %%ecx, %%ecx\n\t"
- "xorl %%edx, %%edx\n\t"
+ /* %edx contains drive number */
"xorl %%esi, %%esi\n\t"
"xorl %%edi, %%edi\n\t"
"xorl %%ebp, %%ebp\n\t"