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Linux installation troubleshooting
Table 5 Linux troubleshooting table
Symptoms
The host adapter driver
was loaded properly and
everything was working, but
the devices do not show
up after the computer was
rebooted.
The host adapter can detect
the target device at LUN 0
but not the devices at LUN
1 or higher in Red Hat Linux
version 3 with kernel 2.4.
On certain 64-bit platforms,
the driver Makefile may
be unable to detect the
correct CPU architecture when
compiling the driver, an error
such as cc1 :
CPU you selected does
not support x86_64
instruction set
The connected SCSI devices
are not detected by the
operating system.
Troubleshooting steps
On some Red Hat Linux distributions, the driver may not automatically load
when the system is booted.
•
To enable driver autoload in Red Hat 4, add the following line to
/etc/modprobe.conf after installing the driver:
alias scsi_hostadapterX express2 Where X is the next
available #.
To enable driver autoload in 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)
•
When using version 2.4 of the Linux kernel e.g. Red Hat 3), devices on
LUN 1 or higher may not be detected automatically when the driver is
loaded. This is a known issue with the 2.4 kernel. To manually detect
such devices, issue the following command:
$ echo "scsi add-single-device <h> <b> <t> <l>" >
/proc/scsi/scsi
Where <h> is the host, <b> is the bus (always 0 for ATTO drivers), <t> is
the target, and <l> is the LUN. You can confirm that the device has been
detected by checking for it in /proc/scsi/scsi.
•
Specify the correct architecture when running the make command. For
example: $make install ARCH=x86_64
error :
•
Verify the driver is loaded by examining the output of the Ismod
command for express2.
•
Check /proc/scsi/scsi to see a list of devices that are known
by the operating system. This will only list the device at LUN 0 and
its negotiated speed.
35
User guide
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Table of Contents
Troubleshooting
