Troubleshooting
D.11
Troubleshooting TFTP Problems
Use the following procedure to determine if TFTP is properly configured and running at the
UNIX host:
To verify that TFTP is properly running at the load server, you will use TFTP to get a file from
the TFTP home directory. To do this, first change to a directory other than the directory where
the load images and parameter files are stored. For example:
% cd /usr
Then type a command of the form:
% tftp
load-server-internet-address
where load-server-internet-address represents the Internet address of the host where the load
images and parameter files are located (you can do this from the same host). TFTP will
respond with a tftp> prompt. At the prompt, type the command:
tftp> get
tftp-home-directory
/default.dmp
If the get operation is successful, then TFTP is configured properly on the UNIX load server
host. (You can delete the copied default.dmp file.) If the get operation is not successful, try to
get another file (for example, /etc/inetd.conf) to see if the problem is with the way TFTP is
configured, or if there is simply a problem with the ability of TFTP to locate or access files
from the TFTP home directory. (If the second get operation is not successful, then TFTP is not
configured properly on the load server.)
To verify that TFTP is configured, check the /etc/services file for a TFTP entry, using the
command:
% grep tftp /etc/services
For example, on a Sun Workstation, this entry will look like:
tftp 69/UDP
If there is no entry in the etc/services file, add one. If there is an entry, check for a tftp entry in
the /etc/inetd.conf file. Use the command:
% grep tftp /etc/inetd.conf
There should be a line in the /etc/inetd.conf file which contains tftp in it, and that is not treated
as a comment (# is the comment character). For example, on a Sun Workstation, this entry
will look like:
tftp dgram udp wait root /usr/etc/in.tftpd in.tftpd -s /tftpboot
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