Error logging is provided through:
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alog, errlog and syslog.

Display the contents of the boot log
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alog -o -t boot

Display the contents of the console log
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alog -o -t console

List all log types that alog knows
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alog -L

Send a message to errlog
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errlogger “Your message here”

List info on error ID FE2DEE00 (IDENTIFIER column in errpt output)
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errpt -aDj FE2DEE00

List all errors that happened today
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errpt -s `date +%m%d0000%y`

To list all errors on hdisk0
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errpt -N hdisk0

To list details about the error log
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/usr/lib/errdemon -l

To change the size of the error log to 2 MB
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/usr/lib/errdemon -s 2097152

syslog.conf line to send all messages to log file
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*.debug /var/log/messages

syslog.conf line to send all messages to error log
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*.debug errlog

To identify the error details from repository
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errpt -t |grep 173C787F

To open the alternate error log file
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errpt -i errlog

How to check start and end date in errpt
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errpt -s 0303000015 -e 0304000015

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