EndRun Tempus LX GPS, User Manual

Page: 76 / 116

T e m p u s L X G P S U s e r M a n u a l 64
A P P E N D I X B
65 T e m p u s L X G P S U s e r M a n u a l
U P G R A D I N G T H E F I R M W A R E
upgradekernel /tmp/6010-0041-100.bzimage
The kernel upgrade utility verifies the integrity of the file, reads the kernel version information, pres-
ents it to you and asks you to verify before replacing the old kernel image. If you verify, it will then
erase the old image and write the new one in its place. The erase and write operation takes about 10
seconds.
CAUTION
A power failure during the kernel erase and write operation would render your unit unbootable. It is
highly advisable to plug your unit into a UPS while performing the kernel upgrade.
Performing the GPS
Upgrade
To perform this upgrade, log in as the root user to the Tempus LX using either the local console serial
I/O port,
telnet
or
ssh
and perform these operations:
Change the working directory to the /tmp directory:
cd /tmp
If you are using
ftp
to perform the upgrade, transfer the previously downloaded file using binary
transfer mode from the remote host to the working directory, /tmp. The GPS subsystem image will
be named with the software part number and version like: 6010-0020-000_3.01.bin . Substitute the
name of the actual GPS subsystem image that you are installing for 6010-0020-000_3.01.bin :
ftp remote_host
{ perform ftp login on remote host }
bin
{set transfer mode to binary}
get 6010-0020-000_3.01.bin
{transfer the file}
quit
{ close the ftp session after the transfer }
If you are using
ssh
, you may open another command window on the remote computer and securely
transfer the GPS subsystem image to the /tmp directory using
scp
from the remote computer. A com-
mand like this could be used:
scp –p 6010-0020-000_3.01.bin root@gntp.your.domain:/tmp
Now issue the following command to the Tempus LX console to initiate the upload:
upgradegps /tmp/6010-0020-000_3.01.bin
This command is a script that performs the file transfer to the GPS engine. It first tells the GPS en-
gine to enter the ‘waiting for download’ mode, and then prompts you with this line
---When you see the `C` character, hit <enter> to begin the upload.
Then it echos the serial port characters sent by the GPS engine to the console. You should next see
this message from the GPS engine: