Adcon A720 Guia do Utilizador descarregar pdf (Página 57)

CHAPTER 3

Administrative Tasks at the System Level

stty igncr

cd /etc

/etc/rc.sysinit

6. Now you can change the root password as described in

Step 2 through Step 4 of “Changing Passwords” on page 55.

7. After you get the “Password changed” message, type exec

/bin/init.

The Linux login prompt is displayed. Now you can log in with your

new root password.

Software Upgrades

Both components of your base station have their software stored

in Flash EEPROMs. This means that you can upgrade the software

at any time and you won’t lose any data while the power is

switched off.

The A840 Telemetry Gateway has two kinds of software: a

bootloader (called hermit) and the software proper. Both of them

can be upgraded. For free upgrades, check Adcon’s web site for

the latest files for your gateway.

Upgrading the bootloader

1. Make sure you have the correct file. It should have an .hmt

extension (for example, hermit-010626.hmt).

2. Log in as root, as explained in the first step of “Stopping and

Starting the Telemetry Gateway” on page 54.

3. Type reboot.

4. Several messages will appear (the procedure can take some

20 seconds). Wait until you see the following message:

Please stand by while rebooting the system.

Restarting system.

Waiting 5 sec for <ESC>, <DEL>, or <BS> to

enter console

5. At this point, press the <ESC>, <DEL>, or <backspace> key

to enter hermit (the bootloader). The following message will

be displayed:

Hermit V1.2.3 @19:14:31, Oct 30 2001

hermit>

Note: Systems with older hermit versions may display a message

stating that any key can be pressed.

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Adcon A720 Guia do Utilizador Página 57