Unset option.syslinux if grub option is set.

[grml2usb.git] / grml2usb

diff --git a/grml2usb b/grml2usb
index 6f9eec9..ce22882 100755 (executable)
--- a/grml2usb
+++ b/grml2usb
@@ -32,6 +32,11 @@ def syslinux_warning(option, opt, value, parser):
             "is grml2usb's default. Continuing anyway.\n")
     setattr(parser.values, option.dest, True)
 
+# if grub option is set, unset syslinux option
+def grub_option(option, opt, value, parser):
+    setattr(parser.values, option.dest, True)
+    setattr(parser.values, 'syslinux', False)
+
 # cmdline parsing
 USAGE = "Usage: %prog [options] <[ISO[s] | /live/image]> </dev/sdX#>\n\
 \n\
@@ -56,7 +61,8 @@ parser.add_option("--fat16", dest="fat16", action="store_true",
                   help="format specified partition with FAT16")
 parser.add_option("--force", dest="force", action="store_true",
                   help="force any actions requiring manual interaction")
-parser.add_option("--grub", dest="grub", action="store_true",
+parser.add_option("--grub", dest="grub", action="callback",
+                  callback=grub_option,
                   help="install grub bootloader instead of (default) syslinux")
 parser.add_option("--grub-mbr", dest="grubmbr", action="store_true",
                   help="install grub into MBR instead of (default) PBR")
@@ -945,7 +951,7 @@ def check_for_fat(partition):
             raise CriticalException("Failed to read device %s"
                                     " (wrong UID/permissions or device/directory not present?)" % partition)
 
-        if options.syslinux and filesystem != "vfat":
+        if filesystem != "vfat":
             raise CriticalException("Partition %s does not contain a FAT16 filesystem. (Use --fat16 or run mkfs.vfat %s)" % (partition, partition))
 
     except OSError:
@@ -1810,7 +1816,7 @@ def handle_vfat(device):
     # check for vfat filesystem
     if device is not None and not os.path.isdir(device):
         try:
-            check_for_fat(device)
+            if options.syslinux: check_for_fat(device)
         except CriticalException, error:
             logging.critical("Execution failed: %s", error)
             sys.exit(1)