From: Colin Watson <cjwatson@debian.org>
Date: Mon, 13 Jan 2014 12:12:54 +0000 (+0000)
Subject: Disable use of floppy devices
X-Git-Tag: archive/raspbian/2.12-8+rpi1^2~143
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=839ae0906ae29bee498dca90d07ab5b6c08690f4;p=grub2.git

Disable use of floppy devices

An ugly kludge.  Should this be merged upstream?

Author: Robert Millan

Patch-Name: disable-floppies.patch

Gbp-Pq: Name disable-floppies.patch
---

diff --git a/grub-core/kern/emu/hostdisk.c b/grub-core/kern/emu/hostdisk.c
index 0e6eebd..3e39fc6 100644
--- a/grub-core/kern/emu/hostdisk.c
+++ b/grub-core/kern/emu/hostdisk.c
@@ -532,6 +532,18 @@ read_device_map (const char *dev_map)
 	  continue;
 	}
 
+      if (! strncmp (p, "/dev/fd", sizeof ("/dev/fd") - 1))
+	{
+	  char *q = p + sizeof ("/dev/fd") - 1;
+	  if (*q >= '0' && *q <= '9')
+	    {
+	      free (map[drive].drive);
+	      map[drive].drive = NULL;
+	      grub_util_info ("`%s' looks like a floppy drive, skipping", p);
+	      continue;
+	    }
+	}
+
       /* On Linux, the devfs uses symbolic links horribly, and that
 	 confuses the interface very much, so use realpath to expand
 	 symbolic links.  */