diff options
| -rw-r--r-- | sys-utils/hwclock.8.in | 24 |
1 files changed, 5 insertions, 19 deletions
diff --git a/sys-utils/hwclock.8.in b/sys-utils/hwclock.8.in index 505ff6505..20a8dd05c 100644 --- a/sys-utils/hwclock.8.in +++ b/sys-utils/hwclock.8.in @@ -36,25 +36,11 @@ Clock timescale; set the kernel's timezone, NTP timescale, and epoch (Alpha only); compare the System and Hardware Clocks; and predict future Hardware Clock values based on its drift rate. .PP -Since v2.26 -.B hwclock -does not update the Hardware Clock's drift factor in @ADJTIME_PATH@ by default. -It is necessary to use \fB\-\-update-drift\fR, with \fB\-\-set\fR or -\fB\-\-systohc\fR, to force drift factor updates. -See the \fB\-\-update\-drift\fR option below for details. -.PP -Since v2.26 -.B hwclock \-\-hctosys -does a better job at setting the System Clock: it no longer simply copies -the time from the Hardware Clock to the System Clock, but sets the System -Clock to a drift-compensated time. (That is: it reads the Hardware Clock, -applies a compensation for the systematic drift to this read time, and -then sets the System Clock to the resulting value.) -Therefore it is no longer necessary to run \fBhwclock --adjust\fR before -doing \fBhwclock --hctosys\fR, and thus \fBhwclock\fR can be used very -early on in the boot process when the root filesystem is still read-only. -See the \fB\-\-hctosys\fR function below for information on inhibiting -this new behavior. +Since v2.26 important changes were made to the +.B \-\-hctosys +function, and the new option +.B \-\-update\-drift +was added. See their respective sections below. . .SH FUNCTIONS The following functions are mutually exclusive, only one can be given at |