geom.c    |  2 +-

 hdparm.c  |  2 +-

 sysconfig | 36 ++++++++++++++++++++++++++++++++++++

 3 files changed, 38 insertions(+), 2 deletions(-)

diff --git a/geom.c b/geom.c

index 3241ed0..c642f48 100644

--- a/geom.c

+++ b/geom.c

@@ -207,7 +207,7 @@ int get_dev_geometry (int fd, __u32 *cyls, __u32 *heads, __u32 *sects,

 			__u64 hs  = (*heads) * (*sects);

 			__u64 cyl = (*cyls);

 			__u64 chs = cyl * hs;

-			if (chs < (*nsectors))

+			if (chs < (*nsectors) && hs)

 				*cyls = (*nsectors) / hs;

 		}

 	}

diff --git a/hdparm.c b/hdparm.c

index 0af6a5a..926174d 100644

--- a/hdparm.c

+++ b/hdparm.c

@@ -5,7 +5,7 @@

 #define HDPARM_VERSION "v9.62"

 #define _LARGEFILE64_SOURCE /*for lseek64*/

-#define _BSD_SOURCE	/* for strtoll() */

+#define _DEFAULT_SOURCE	/* for strtoll() */

 #include <unistd.h>

 #include <stdlib.h>

 #include <stdio.h>

diff --git a/sysconfig b/sysconfig

new file mode 100644

index 0000000..a2b4232

--- /dev/null

+++ b/sysconfig

@@ -0,0 +1,36 @@

+# These options are used to tune the hard drives -

+# read the hdparm man page for more information

+

+# Set this to 1 to enable DMA. This might cause some

+# data corruption on certain chipset / hard drive

+# combinations. This is used with the "-d" option

+

+# USE_DMA=1

+

+# Multiple sector I/O. a feature of most modern IDE hard drives,

+# permitting the transfer of multiple sectors per I/O interrupt,

+# rather than the usual one sector per interrupt.  When this feature

+# is enabled, it typically reduces operating system overhead for disk

+# I/O by 30-50%.  On many systems, it also provides increased data

+# throughput of anywhere from 5% to 50%.  Some drives, however (most

+# notably the WD Caviar series), seem to run slower with multiple mode

+# enabled. Under rare circumstances, such failures can result in

+# massive filesystem corruption. USE WITH CAUTION AND BACKUP.

+# This is the sector count for multiple sector I/O - the "-m" option

+#

+# MULTIPLE_IO=16

+

+# (E)IDE 32-bit I/O support (to interface card)

+#

+# EIDE_32BIT=3

+

+# Enable drive read-lookahead

+#

+# LOOKAHEAD=1

+

+# Add extra parameters here if wanted

+# On reasonably new hardware, you may want to try -X66, -X67 or -X68

+# Other flags you might want to experiment with are -u1, -a and -m

+# See the hdparm manpage (man hdparm) for details and more options.

+#

+EXTRA_PARAMS=