Advantech PCA-6157, Руководство пользователя

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88 PCA-6157/6157L User's Manual
To solve some problems it is necessary to be aware of certain files
in the UNIX system. The directory etc/conf/cf.d contains the files
sdevice, mdevice, and mscsi. Two other files in this directory,
sdev.hdr and mdev.hdr, describe the values of the possible field
entries in sdevice and mdevice.
The following are some problems and their suggested solutions:
• AN INTERRUPT CONFLICT MESSAGE APPEARS.
a. In the sdevice file, check the fifth field of the bhba entry for
a conflict with that of any competing driver.
• A SCSI DEVICE CANNOT BE FOUND.
a. Reboot to observe the system configuration table when it
appears.
b. Look for bhba entries for each SCSI device connected to an
NCR SCSI controller.
c. Also, check to see that the desired value for each field exists.
• UNIX SYSTEM BEHAVES UNRELIABLY AFTER A CON
FIGURATION CHANGE.
a. Whenever the hardware or software configuration is altered,
the kernel must be rebuilt. Use the Relink UNIX option of
the CAM3 configuration tool, or change to the /etc/conf/cf.d
directory and type:
./link_unix
to rebuild the kernel.
• DURING KERNEL REBUILD, AN ERROR MESSAGE
INDICATES THE CHARACTER DEVICE NUMBER OF
DEVICE cn CONFLICTS WITH THE CHARACTER DEVICE
NUMBER OF bhba.
a. Reinstall the CAM3 software using the installpkg utility.
Remember to reload the bhba driver.
b. Rebuild the kernel.