diff --git a/chrony.texi.in b/chrony.texi.in index 44aeb93..a984f8a 100644 --- a/chrony.texi.in +++ b/chrony.texi.in @@ -324,18 +324,6 @@ bootstrap. @item More drivers for reference clock support -@item Automation of the trimrtc and writertc mechanisms - -Currently, the RTC trimming mechanism is a manual operation, because there has -to be a reasonable guarantee that the system will stay up for a reasonable -length of time afterwards. (If it is shut down too soon, a poor -characterisation of the RTC drift rate will be stored on disc, giving a bad -system clock error when the system is next booted.) - -To make chrony more automated for the non-expert user, it would be useful if -this problem could be avoided so that trimrtc could be done automatically (e.g. -in a crontab, or as part of the ip-up or ip-down scripts.) - @end enumerate @c }}} @c }}} @@ -4436,6 +4424,9 @@ across machine reboots even if the @code{trimrtc} command is never used @code{trimrtc} command is provided as a method by which it can be corrected, in a manner compatible with @code{chronyd} using it to maintain accurate time across machine reboots. + +The @code{trimrtc} command can be executed automatically by @code{chronyd} +with the @code{rtcautotrim} directive (@pxref{rtcautotrim directive}). @c }}} @c {{{ waitsync @node waitsync command @@ -4469,7 +4460,8 @@ The @code{writertc} command writes the currently estimated error and gain/loss rate parameters for the RTC to the RTC file (specified with the @code{rtcfile} directive (@pxref{rtcfile directive})). This information is also written automatically when @code{chronyd} is killed -(with SIGHUP, SIGINT, SIGQUIT or SIGTERM). +(with SIGHUP, SIGINT, SIGQUIT or SIGTERM) or when the @code{trimrtc} +command is issued. @c }}} @c }}} @c }}}