How to configure a local graphics console, How to set the diagnostics level, Before you begin – Sun Microsystems SUN FIRE 280R User Manual

Page 214

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186

Sun Fire 280R Server Owner’s Guide • January 2001

/dev/ttyb

is inaccessible.

Sometimes, a program will have changed the protection of

/dev/ttyb

(or the serial

port you are using) so that it is no longer accessible. Make sure that

/dev/ttyb

has

the mode set to crw-rw-rw-.

The serial line is in tandem mode.

If the

tip

connection is in tandem mode, the operating system sometimes sends

XON (^S) characters (particularly when programs in other windows are generating
lots of output). The XON characters are detected by the Forth word

key?

, and can

cause confusion. The solution is to turn off tandem mode with the

~s !tandem

tip

command.

The

.cshrc

file generates text.

The

tip

connection opens a sub-shell to run

cat

, thus causing text to be attached to

the beginning of your loaded file. If you use

dl

and see any unexpected output,

check your

.cshrc

file.

How to Configure a Local Graphics Console

For information about how to configure a local graphics console, see “How to
Configure a Local Graphics Console” on page 36.

How to Set the Diagnostics Level

Before You Begin

Make sure that the power to the system is on and the keyswitch is in the Power-
On/Off position. Access your server’s system console either through a remotely
connected workstation or by an alphanumeric terminal or graphics console
connected to the server’s serial port. See:

“How to Attach an Alphanumeric (ASCII) Terminal” on page 34

“How to Configure a Local Graphics Console” on page 36

“How to Set Up a

tip

Connection” on page 183

For background information about the available levels of testing, see:

“About Diagnostic Levels” on page 167

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