System Upgrade

The system updates are in self-extracting Winzip format and are sequentially named using the convention F2updxx.exe, where xx is the update number.

The self-extracting Winzip file contains two files: the system update file, which is a compressed tar file to be transferred to the NEMI using the netadmin account, and a text file in Microsoft Word format describing the contents of the update and any special instructions.

After successfully logging in, the NEMI system displays a message similar to the following:


`Linux 2.0.35`	`-u02`	`- here the -u02 is the current update level`

Downloading a System Update

Any system that has Internet connectivity can be used to download the Winzip self-extracting system updates. Executing the file (on Windows 95/98 or Windows NT) or using unzip (on UNIX) will unpack the two contained files.

Depending on customer preferences and established policies, the compressed tar file (F2updxx.tgz, where xx is the update number) has to be transferred to the NEMI netadmin account.

Transferring a System Update

You can transfer a system update to the NEMI in one of the following ways (listed in decreasing order of connection speed):

•

Use the existing Ethernet connection and FTP (remember to set binary mode for FTP before starting the transfer).

•

Establish a local serial connection with CRT and a Laplink cable and use Zmodem as the transfer agent.

All of the above options can be used in Windows 95/98, Windows NT, or UNIX except for using a local PPP connection. The third option is only available from a UNIX or Linux system because Windows 95/98 and Windows NT require a modem connection for establishing a PPP link.

Installing a System Update

After the compressed tar file has been transferred into the netadmin account, log onto the NEMI system as root.

System updates are applied automatically during startup whenever the NEMI detects a F2upd*.tgz file in the netadmin account. After executing the update, the file is deleted and the file /etc/motd is updated to display the new update level. After logging in as root, enter reboot and the NEMI instantaneously executes a system shutdown, followed by a reboot and automatic system update as previously described.

Checking the System Update Level

To check for the system update level, log into the NEMI and watch the first line after your successful login. You see a line similar to the following:


`Linux 2.0.35.`	`-u02`	`- where the -u02 is the current update`

Set Up PPP in Windows 95/98

To automate logging into the NEMI, you need a script. The script named nemi.exe is available in the netadmin account as a self-extracting zip file.

Get the Login Script

Step 1

Open a DOS shell on your local computer by pressing the Start button, choosing Run, and entering command. In Windows NT enter cmd instead of command.

Step 2

Check in the command window to see if you have a network connection to the NEMI by entering ping IP address, where IP address is the network address of the NEMI board.

Step 5

Enter your password, the default password for netadmin is ChgMeNOW.

Step 8

Finish the file transfer by entering the quit command. The login script is now stored on your computer.

Script files are usually kept in C:\Program Files\Accessories. You should explicitly specify this directory when executing nemi.exe to keep the file in its default location.

If you have problems accessing the NEMI, here is a script you can type in as a text file. Name the file nemi.scp.

; Main entry point to script

proc main

transmit „^M"

waitfor „ogin: „

transmit $USERID, raw

transmit „^M"

waitfor „assword: „

transmit $PASSWORD, raw

transmit „^M"

endproc

; End of script

Caution

Be careful when you enter the script because it is case sensitive.

How to Set Up PPP

After you have changed or established PPP for UNIX using the netconfig command, it is time to create a new dialup networking connection on your computer. Your computer will use this network connection to the NEMI.

Note The following screen shots were taken using Windows 98, you will notice slight differences if you are using Windows 95.

Double-click My Computer, and double-click the Dial-Up Networking folder. Double-click the icon labeled Make New Connection. This will start the New Connection Wizard, and you will see the display as shown in Figure C-1.

Give this connection a meaningful name, make sure the modem listed is the one you want to use, and then click Next.

Enter the phone number you will use for your connection to reach the NEMI ( Figure C-2).

Click Next. You will be shown another screen saying that you have successfully created a new connection. Click the Finish button.

You will now be back in the dial-up networking folder, and will see the new connection. Right-click on it, and select Properties. You will see a display similar to the one shown in Figure C-3.

Click the Configure button, and set the Port to the correct one for your modem. Select the speaker volume you want, and set the maximum speed to 19200 if you are connecting with a 14.4k modem, or 38400 if you are using a 28.8k modem.

Make sure the Only connect at this speed check box is cleared. It should look similar to the display as shown in Figure C-4.

While still on this panel, click Advanced, and make sure you have hardware flow control selected, as well as "Use error control" and "Compress data," as shown in Figure C-6.

Click OK, and then click the Options tab. Select the Display modem status check box, as shown in Figure C-7.

Click OK, and you will be back to the General tab of your connection. Now click Server Type. This will give you a new panel. Make sure the type of dialup server listed is PPP for Windows 95/98/NT. If it is not, click the drop-down arrow and select from the list.

Make sure the Log on to network and Require encrypted password check boxes are cleared. Under Allowed network protocols, make sure only TCP/IP is selected as shown in Figure C-8.

Click TCP/IP Settings, click Server assigned IP Address in the first section, and click Server assigned name server addresses. Select both the Use IP Header Compression and the Use default gateway on remote network check boxes as shown in Figure C-9.

Connect the script to the just defined dial-out. Browse to nemi.scp and click OK again, and then click OK again, and then click OK one more time to return to the Dial-Up Networking folder, as shown in Figure C-10.

Make sure your connection is the highlighted icon, click the Connections menu item on the menu for the folder, and select Settings. Leave the prompt to Use Dial-Up Networking option selected.

You are done. To connect, click the dialup networking icon, enter ppp as your username and the password to the PPP account and click the Connect button.

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