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NetBSD 6.1.5 - man page for postinstall (netbsd section 8)

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POSTINSTALL(8)			   BSD System Manager's Manual			   POSTINSTALL(8)

NAME
     postinstall -- check and fix installation after system upgrades

SYNOPSIS
     postinstall [-a arch] [-d destdir] [-m machine] [-s {srcdir | tgzdir | tgzfile}] operation
		 [item [...]]

DESCRIPTION
     The postinstall utility performs post-installation checks and/or fixes on a system's config-
     uration files.  It is especially useful after system upgrades, e.g. after updating from
     NetBSD 1.6.2 to NetBSD 2.0.  The items to check or fix are divided in two groups: enabled by
     default and disabled by default.  The latter are items that are dangerous for some reason,
     for example because they remove files which may be still in use.  If no items are provided,
     the default checks or fixes are applied.  Those which are disabled by default must be pro-
     vided explicitly.

     Supported options:

	   -a arch	 MACHINE_ARCH.	Defaults to machine of the host operating system.

	   -d destdir	 Destination directory to check.  Defaults to /.

	   -m machine	 MACHINE.  Defaults to machine of the host operating system.

	   -s {srcdir | tgzdir | tgzfile}
			 The location of the reference files, or the NetBSD source files used to
			 create the reference files.  This may be specified in one of three ways:

			 -s srcdir	The top level directory of the NetBSD source tree.  By
					default this is /usr/src.

			 -s tgzdir	A directory in which reference files have been extracted
					from a binary distribution of NetBSD.  The files that are
					distributed in the ``etc.tgz'' set file must be present.
					The files that are distributed in the ``xetc.tgz'' set
					file are optional.

			 -s tgzfile	The location of a set file (or ``tgz file'') such as
					``etc.tgz'' or ``xetc.tgz'' from a binary distribution of
					NetBSD.  Each set file is a compressed archive containing
					reference files, which will be extracted to the temproot
					directory.  Multiple -s options may be used to specify
					multiple set files.  The ``etc.tgz'' set file must be
					specified.  The ``xetc.tgz'' set file is optional.

     The operation argument may be one of:

	   check    Perform post-installation checks on items.

	   diff [diff(1) options]
		    Similar to check, but also show the differences between the files.

	   fix	    Apply fixes that check determines need to be applied.  Not all items can be
		    automatically fixed by postinstall, and in some cases an error will be
		    reported, after which manual intervention will be required.

		    Conflicts between existing files in the target file system and new files from
		    the NetBSD distribution are resolved by replacing the existing file with the
		    new file; there is no attempt to merge the files.  See etcupdate(8) for an
		    alternative update method that is able to merge files.

	   help     Display a short help.

	   list     List available items, showing if they are enabled or disabled by default.

	   usage    Same as help.

EXIT STATUS
     The postinstall utility exits 0 on success, and >0 if an error occurs or a problem was
     found.

SEE ALSO
     etcupdate(8)

HISTORY
     The postinstall utility first appeared in NetBSD 1.6.

     In NetBSD 4.0, the -s tgzfile option was added.

     In NetBSD 5.0, the ability to specify multiple colon-separated files with a single -s option
     was deprecated.

BSD					 October 4, 2008				      BSD
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