GPT partitions have many attributes. Don't stomp on them all when

using 'flag <part #>' to make a partition the only bootable partition.
Just turn off the bootable bit in the other partitions.

ok dlg@

diff --git a/sbin/fdisk/cmd.c b/sbin/fdisk/cmd.c
index 895a178..fa0399e 100644 (file)
--- a/sbin/fdisk/cmd.c
+++ b/sbin/fdisk/cmd.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: cmd.c,v 1.177 2023/11/10 15:41:11 krw Exp $   */
+/*     $OpenBSD: cmd.c,v 1.178 2023/11/10 16:20:52 krw Exp $   */
 
 /*
  * Copyright (c) 1997 Tobias Weingartner
@@ -517,7 +517,7 @@ Xflag(const char *args, struct mbr *mbr)
                                if (i == pn)
                                        gp[i].gp_attrs = GPTPARTATTR_BOOTABLE;
                                else
-                                       gp[i].gp_attrs = 0;
+                                       gp[i].gp_attrs &= ~GPTPARTATTR_BOOTABLE;
                        }
                } else {
                        for (i = 0; i < nitems(mbr->mbr_prt); i++) {