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Chapter 4: Troubleshooting

The /var/log directory contains several message files. The most recent messages are in

/var/log/messages. Previous system messages are organized into weekly message files and

are identified by the date that is appended to the messages file.

The message files may contain not only system messages, but also crash dumps and other

data, which can cause /var/log to grow quite large. To keep the directory to a reasonable size

and ensure that future crash dumps can be saved, you should remove unneeded files

periodically. You can automate the task by using crontab. See your Linux® system

documentation for information on crontab.

Recovery procedures

This section provides solutions for the following problems:

●

Loss of power

If the system loses power, it is recommended (but not required) that you empty the disc drive

and tape drives. The system boots from the disk by default.

To turn on the computer:

1. Turn on all external devices.

2. Turn on the system monitor.

3. Press and release the power button.

To turn off the computer:

1. Log in to the system as root.

2. Enter:

/usr/sbin/shutdown -h now

This shuts down the system.

3. Turn off the system monitor.

4. Turn off all external devices.

Avaya CMS Dell R720 and R620 Computer Hardware Installation

on page 44

October 2015