|SYSMERGE(8)||System Manager's Manual||SYSMERGE(8)|
sysmergeis a utility designed to help the administrator update configuration files after upgrading to a new release or snapshot.
sysmerge works by comparing a reference
root directory against currently installed files.
sysmerge will work through the fileset,
offering the chance to merge any differences using
sdiff(1). Merged files may be edited using
the default editor or be left to deal with at a later date. Should any
problems occur, such as a failure to upgrade a file, the user will be
notified and will have to deal with the issue by hand.
By default (if
-d is not used)
sysmerge only compares files whose reference sources
have changed since the last run and attempts to automatically upgrade them
to the newest version, provided that they have no local changes. It
automatically installs missing files and binaries, and updates files
differing only by CVS Id. Files whose reference sources have matching CVS Id
are skipped from comparison. /etc/fbtab and
/etc/ttys are created using helper scripts and are
always compared. Users and groups that are missing from
the current installation but present in the new
group(5) files will
always be automatically (re)created.
sysmerge will finish by running
mtree(8) to make sure the directory
structure has correct permissions.
The options are as follows:
sysmergeruns non-interactively, saving differing files for later manual processing.
sysmergedoes not take any automatic action, allowing for a full diff comparison.
sysmergeonly compares the default configuration files of installed packages(7) against their target on the system (@sample).
Files can be excluded from comparison by listing them in /etc/sysmerge.ignore. Checksum files stored under /var/sysmerge as well as the following files will always be skipped from direct comparison: /etc/group, /etc/localtime, /etc/master.passwd, /etc/motd, /etc/passwd, /etc/pwd.db, /etc/spwd.db, /var/db/locate.database, /var/mail/root.
sysmergelast run modified files. Rotated automatically in order of increasing age from backups.0 to backups.3.
sysmergescript first appeared in OpenBSD 4.4.
sysmergewas written by Antoine Jacoutot <email@example.com>. It was originally started as a friendly fork from mergemaster by Douglas Barton <DougB@FreeBSD.org>.
|September 6, 2016||OpenBSD-current|