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Full Discussion: WTMPX File corrupted
Operating Systems Solaris WTMPX File corrupted Post 302585868 by methyl on Thursday 29th of December 2011 11:59:58 AM
Old 12-29-2011
How big is the wtmpx file? If it is very near 2Gb, it it too big.
Code:
ls -la /var/adm/wtmpx

Is (or was) the disc partition containing the wtmpx file full?
Is the output from "who -u" correct (it comes from the utmpx file) ?

There is a known bug in Solaris if the hardware realtime clock was wrong (or had a flat battery) at the time the system was booted. Correcting the time with the unix "date" command is not enough.

"Piping to a file"? sounds unlikely.
Something like this (assuming /var/tmp has enough space).
Code:
/usr/lib/acct/fwtmp < /var/adm/wtmpx  > /var/tmp/temp_wtmpx
more /var/tmp/temp_wtmpx

Then look at the early records to see how long this file has been in use.

There is no automatic cleanup process, you need to write one.
I normally start a new wtmpx file each week and keep 8 weeks worth.
Some sites would require more history, but bear in mind that once a wtmpx file gets to be a year old, the output from commands like "last" can be nonsense.

When starting a new file, copy the old file to a new name with "cp -p" and then null the wtmpx file (only) with ">wtmpx". Do not rename the wtmpx file or you will have to create a new file and fix the permissions and stop/start the accounting process.
Do not touch the utmpx file. If you null that one you will have to reboot the server to fix the problem.
 

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LEARN ABOUT OPENDARWIN

install-solaris

install-solaris(1M)													       install-solaris(1M)

NAME

       install-solaris - install the Solaris operating system

SYNOPSIS

       install-solaris

       install-solaris	invokes  the  Solaris  Install	program. Depending on graphical capability and available memory at the time of invocation,
       install-solaris invokes either a text-based installer or a graphical installer.

       The following minimum requirements for physical memory dictate which features are available during installation:

       For SPARC machines:

       128 MB

	   Minimum physical memory for all installation types

       128 MB

	   Minimum physical memory required for windowing system

       384 MB

	   Minimum physical memory required for graphical-based installation

       For x86 machines:

       256 MB

	   Minimum physical memory for all installation types

       256 MB

	   Minimum physical memory required for windowing system

       512 MB

	   Minimum physical memory required for graphical-based installation

       In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number  of  fea-
       tures available.

       install-solaris	exists	only  on  the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the  for more
       details.

       install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the
       installation media. Refer to the  for disk space requirements.

       Refer to the  for more information on the various menus and selections.

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcdrom  (Solaris instal-  |
       |			     |lation media)		   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+

       pkginfo(1), install(1M), pkgadd(1M), attributes(5)

       It is advisable to exit install-solaris by means of the exit options in the install-solaris menus.

								    23 Sep 2005 					       install-solaris(1M)
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