On Fri, Jun 28, 2024 at 02:05:48PM -0500, David Wright wrote: > On Fri 28 Jun 2024 at 11:14:34 (-0500), John Hasler wrote: > > David writes: > > > It's not clear to me which NTP (protocol) packages are set up to use > > > the util-linux stuff, assuming you're not rolling your own > > > startup/shutdown scripts. (That's the problem in the Subject line, in > > > a sense.) > > > > Chrony can. I don't know about Ntpsec. But that doesn't get the > > adjustment made early enough. > > By "use the util-linux stuff" I meant use /sbin/hwclock. Neither > chrony nor ntpsec can use hwclock by default as they don't list > util-linux as a dependency. They use their own binaries. IDK whether > you can deliberately configure them to use hwclock instead, or why > any one would do so.
Still they can set (and AFAIK discipline) the "hardware clock", via the Linux kernel -- if things are set up this way. See the notes on the Linux kernel's "11 minute mode" in the hwclock(8) man page. Cheers -- t
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