20-20
Cisco IOS Software Configuration Guide for Cisco Aironet Access Points
OL-14209-01
Chapter 20 Managing Firmware and Configurations
Working with Software Images
Note You must restart the inetd daemon after modifying the /etc/inetd.conf and /etc/services files.
To restart the daemon, either stop the inetd process and restart it, or enter a fastboot
command (on the SunOS 4.x) or a reboot command (on Solaris 2.x or SunOS 5.x). For more
information on the TFTP daemon, refer to the documentation for your workstation.
• Ensure that the access point has a route to the TFTP server. The access point and the TFTP server
must be in the same subnetwork if you do not have a router to route traffic between subnets. Check
connectivity to the TFTP server by using the ping command.
• Ensure that the image to be downloaded is in the correct directory on the TFTP server (usually
/tftpboot on a UNIX workstation).
• For download operations, ensure that the permissions on the file are set correctly. The permission
on the file should be world-read.
• Before uploading the image file, you might need to create an empty file on the TFTP server. To
create an empty file, enter the touch filename command, where filename is the name of the file you
will use when uploading the image to the server.
• During upload operations, if you are overwriting an existing file (including an empty file, if you had
to create one) on the server, ensure that the permissions on the file are set correctly. Permissions on
the file should be world-write.
Downloading an Image File by Using TFTP
You can download a new image file and replace the current image or keep the current image.
Caution For the download and upload algorithms to operate properly, do not rename image directories.
Beginning in privileged EXEC mode, follow Steps 1 through 3 to download a new image from a TFTP
server and overwrite the existing image.
Command Purpose
Step 1
. Copy the image to the appropriate TFTP directory on the
workstation. Make sure the TFTP server is properly configured;
see the “Preparing to Download or Upload an Image File by Using
TFTP” section on page 20-19
Step 2
Log into the access point through a Telnet session.
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