Recognize GPT partitions of type 21686148-6449-6e6f-744e-656564454649 (a.k.a.

"IdontNeedEFI", a.k.a. "BIOS boot"). Often used to contain the second stage boot
loader binary on disk images.

Makes it easier to recognize/overwrite/remove the contents.

Example image provided by mlarkin@

diff --git a/sbin/fdisk/part.c b/sbin/fdisk/part.c
index c119e21..5f3a110 100644 (file)
--- a/sbin/fdisk/part.c
+++ b/sbin/fdisk/part.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: part.c,v 1.78 2021/05/07 22:15:13 krw Exp $   */
+/*     $OpenBSD: part.c,v 1.79 2021/05/08 17:44:22 krw Exp $   */
 
 /*
  * Copyright (c) 1997 Tobias Weingartner
@@ -49,6 +49,7 @@ static const struct part_type {
        { 0x0A, "OS/2 Bootmgr"},   /* OS/2 Boot Manager or OPUS */
        { 0x0B, "FAT32       ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" },
        { 0x0C, "FAT32L      ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" },
+       { 0x0D, "BIOS Boot   ", "21686148-6449-6e6f-744e-656564454649" },
        { 0x0E, "FAT16L      ", "ebd0a0a2-b9e5-4433-87c0-68b6b72699c7" },
        { 0x0F, "Extended LBA"},   /* Extended DOS LBA-mapped */
        { 0x10, "OPUS        "},   /* OPUS */