LOG.SYS: Difference between revisions

Latest revision as of 22:51, 18 April 2025

Error Logging Device Driver

The OS/2 Logging Facility device driver enables in conjunction with LOGDAEM.EXE the logging of system error messages and some application error messages.

DEVICE=C:\OS2\LOG.SYS <parameters>

Parameters

/E:value - This sets up the log buffer size. Value can be in the range from 4 to 64. Default = 8, This value is expressed in kB.
/A:value - This is the size of the alarm buffer. Value can be in the range from 4 to 64. Default = 8, This value is expressed in kB.
/OFF - If set to OFF the driver is installed, but the logging of error messages is turned off. You can turn it on again with the program SYSLOG.EXE.

Examples

To install the log driver with a log buffer size of 48 Kbytes and an alarm buffer of 16 kB, add this line to your config.sys file:

DEVICE=C:\OS2\LOG.SYS /E:48 /A:16

To install the log driver but turn it off after initialization use this line:

DEVICE=C:\OS2\LOG.SYS /OFF

NOTE: LOG.SYS has its limitations. It will not log an application error unless the application has been written to make use of LOG.SYS. Some routine system errors will not log either because OS/2 opens an error message box on screen to report these.

@@ Line 1: / Line 1: @@
-This driver enables logging of system error messages and some application error messages.
+Error Logging Device Driver
-note: You need also logdaem.exe
+The OS/2 Logging Facility device driver enables in conjunction with [[LOGDAEM.EXE]] the logging of system error messages and some application error messages.
   DEVICE=C:\OS2\LOG.SYS <parameters>
-'''Parameters:'''
+==Parameters==
+* /E:value - This sets up the log buffer size. Value can be in the range from 4 to 64. Default = 8, This value is expressed in kB.
+* /A:value - This is the size of the alarm buffer. Value can be in the range from 4 to 64. Default = 8, This value is expressed in kB.
+* /OFF - If set to OFF the driver is installed, but the logging of error messages is turned off. You can turn it on again with the program [[SYSLOG.EXE]].
-* /E:value
+==Examples==
-This sets up the log buffer size.
+To install the log driver with a log buffer size of 48 Kbytes and an alarm buffer of 16 kB, add this line to your config.sys file:
-Value can be in the range from 4 to 64 .
-Default = 8
-This value is expressed in Kbytes.
-* /A:value
-This is the size of the alarm buffer.
-Value can be in the range from 4 to 64 .
-Default = 8
-This value is expressed in Kbytes.
-* /OFF
-If set to OFF the driver is installed but the logging of error messages is turned off. You can turn it on again with the program Syslog.
-See the examples below.
-To install the log driver with a log buffer size of 48 Kbytes and an alarm buffer of 16 Kbytes, add this line to your config.sys file:
   DEVICE=C:\OS2\LOG.SYS /E:48 /A:16
 To install the log driver but turn it off after initialization use this line:
   DEVICE=C:\OS2\LOG.SYS /OFF
+;NOTE: LOG.SYS has its limitations. It will not log an application error unless the application has been written to make use of LOG.SYS. Some routine system errors will not log either because OS/2 opens an error message box on screen to report these.
-'''NOTE:''' LOG.SYS has its limitations. It will not log an application error unless the application has been written to make use of LOG.SYS. Some routine system errors will not log either because OS/2 opens an error message box on screen to report these.
-'''Platform Support:'''
-{| class="wikitable"
-|-
-!OS/2 2.x
-!OS/2 3.0
-!OS/2 4.0
-!OS/2 4.5x
-|-
-|Yes
-|Yes
-|Yes
-|Yes
-|}
 [[Category:DEVICE Statements]]