• Red Hat Enterprise Server Linux 4, 5
• SUSE Linux Enterprise Server 10, 11
• Fedora 12
• openSUSE Linux 11

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

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_esasraid_XXX.tgz
2. Enter the lnx_drv_esasraid_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 esasraid

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

On SUSE 11, you may also receive an error message about "unsupported" drivers:

$ modprobe esasraid
FATAL: module '/lib/modules/2.6.27.19-5-default/kernel/drivers/scsi/esasraid.ko' is unsupported
Use --allow-unsupported or set allow_unsupported_modules to 1 in
/etc/modprobe.d/unsupported-modules


You can fix this problem by loading the driver with modprobe --allow-unsupported esasraid or editting the file /etc/modprobe.d/unsupported-modules as described.

Unzip and untar the driver files:

$ tar xfz lnx_drv_esasraid_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_esasraid_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 esasraid

Where X is the next available number.

Recommended for SUSE 10:

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

modprobe esasraid

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 esasraid.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 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