AIX Boot and Console Logs

Boot Logs:  

Boot and Console messages can be used to identify and fix problems.

To view stored messages  use alog command.

 # alog -L                                         < Lists  the defined  log types >

Eg:

# alog -L

boot

bosinst

nim

console

cfg

mdmplog

dumpsymp

lvmt

lvmcfg

-o                

      Lists the contents of the log file. Writes the contents of the  log file to standard output in sequential order.

 -t LogType

    Identifies a log defined in the alog configuration database. The alog command gets the log's file name and size from the alog configuration database. If LogFile does not exist, one is created.

          

# alog -L -t boot

    #file:size:verbosity

    /var/adm/ras/bootlog:131072:1

-L

    Lists the log types currently defined in the alog configuration database. If you use the -L flag with the -t LogType flag, the attributes for a specified LogType are listed. The current values of the File, Size, and Verbosity attributes are listed as colon separated values:

            <File>:<Size>:<Verbosity>

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To display all previous logins and logoffs

last  ---->   /var/adm/wtmp

Usage:

# last

# last root console

# last shutdown