• Red Hat Enterprise Linux 3, 4, 5
• SUSE Linux 9, 9.1, 9.2, 9.3, 10

• i386 (with or without "CONFIG_REGPARM")
• x86_64 (AMD64, Intel EM64T)
• ia64 (Itanium2)

NOTE: The kernel header files, make, and gcc must be installed. For details on how to do this, click here.

1. Unzip and untar the driver files with tar xfz lnx_drv_epciu320_XXX.tgz
2. Enter the lnx_drv_epciu320_XXX directory and run the install script install.sh.
3. After the driver is installed, it can be loaded automatically if desired.

Type the following to manually load the module:

$ modprobe express2

You may receive a warning that the module will taint the kernel.

Unzip and untar the driver files:

$ tar xfz lnx_drv_epciu320_XXX.tgz

NOTE: Make sure there are no spaces in the path in which you extract the archive. The Linux kernel Makefile may fail if the path name contains a space character.

Make and install the modules (must be done as root):

$ cd lnx_drv_epciu320_XXX.tgz/src
$ make install


NOTE: You need the kernel header files installed to build this driver. If the header files are in a non-standard location, you may need to modify the KDIR variable on the make command line, eg. make install KDIR=/path/to/kernel

The modules will now be installed and ready to use.

On some Linux distributions, the driver may not load automatically when the system is booted. To enable this behavior, try the following suggestions:

Recommended for Red Hat 4 & 5:

Add the following line to /etc/modprobe.conf after installing the driver:

alias scsi_hostadapterX express2

Where X is the next available number.

Recommended for Red Hat 3:

Add the following line to /etc/rc.modules after installing the driver:

modprobe express2

NOTE: You may need to create /etc/rc.modules and make it executable with chmod +x /etc/rc.modules

Recommended for SUSE 9:

The driver should reload automatically if it is loaded when the system was last shut down. However, to manually enable driver loading for every system boot, use the following instructions:

1. Run the "yast' utility by selecting it the GUI (under "System" in the application menu) or running it from a command line.
2. Select "Hardware", then "Disk Controller".
3. Under "Disk Controller Configuration", select the ATTO device.
4. Select the "express2" module under the "Module to Use" heading.
5. Put an X in the box next to "Load Module in initrd".
6. Select "Finish" to complete the configuration.

Add the following line to /etc/init.d/boot.local:

modprobe express2

The following module parameter is supported by this driver:

• event_log_mask (default 0) Logs error and informative messages to the kernel ring buffer. This value is a bit-mask of message catergories; set to 0xFFFFFFFF to log all possible messages. This feature is mostly for debugging purposes and is not recommended for normal use.

There are also several other parameters available for tweaking. For documentation on these settings, read the file oswrap.c (look for "Module parameter definitions") or the output of the command modinfo express2.ko.

On certain 64-bit platforms, the driver Makefile may be unable to detect the correct CPU architecture. In this instance, you will see an error similar to the following when attempting to compile the driver:

cc1 : error : CPU you selected does not support x86_64 instruction set

This can be resolved by specifying the correct architecture when running the make command, such as:

$ make install ARCH=x86_64

This driver requires that the kernel header files, make, and gcc be installed on the system.

For SUSE, use the YAST utility's "Software Management" module to install the "kernel-source", "gcc", and "make" packages.

For Red Hat, use the "Add/Remove Applications" utility to install the "Development Tools" packages. For details on installing the kernel source package:

• For Red Hat 3, click here
• For Red Hat 4 & 5, click here

Refer to your system documentation for further details.

ATTO Technology, Inc.
155 CrossPoint Parkway
Amherst, New York 14068
Phone: (716) 691-1999
Fax: (716) 691-9353
www.attotech.com

ATTO Technology can also be reached via e-mail at the following addresses:

Sales Support: sls@attotech.com
Technical Support: techsupp@attotech.com