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Installing the 3ware Driver on a FreeBSD System that Boots from a Differ-
www.3ware.com 93
Note: Since twa.ko behaves like a SCSI driver, the units that it
controls are seen as da0, da1 etc.
To make the driver part of the kernel
1 Create the directory /sys/dev/twa
mkdir /sys/dev/twa
2 Copy the 3ware driver source file archive (twa.tgz) to the
directory you created in step 1.
3 Unpack the 3ware driver source files.
cd /sys/dev/twa
tar -xzvf twa.tgz
4 Change the kernel build infrastructure to include the 3ware
driver sources.
a Change to the following directory:
cd /usr/src/sys/i386/conf
b Copy the configuration file to a custom file. For example, if
the configuration file is GENERIC, type
cp GENERIC custom
c Edit the custom file and add the lines shown below under
RAID controllers.
device twa # 3ware Escalade 9000 series
d Save the file.
e Change to the following directory:
cd /sys/conf
f Edit the file “files.i386” and add the lines shown below
dev/twa/tw_cl_fwimg.c optional twa
dev/twa/w_cl_init.c optional twa
dev/twa/tw_cl_intr.c optional twa
dev/twa/tw_cl_io.c optional twa
dev/twa/tw_cl_misc.c optional twa
dev/twa/tw_osl_cam.c optional twa
dev/twa/tw_osl_freebsd.c optional twa
g Save the file.