Re: [bugreport] "hwclock -w" reset time instead of setting the right time

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To: J William Piggott <elseifthen@xxxxxxx>
Subject: Re: [bugreport] "hwclock -w" reset time instead of setting the right time
From: Mikhail Gavrilov <mikhail.v.gavrilov@xxxxxxxxx>
Date: Thu, 2 Jan 2020 22:17:26 +0500
Cc: Karel Zak <kzak@xxxxxxxxxx>, util-linux@xxxxxxxxxxxxxxx, Linux List Kernel Mailing <linux-kernel@xxxxxxxxxxxxxxx>, linux-rtc@xxxxxxxxxxxxxxx
In-reply-to: <nycvar.YAK.7.76.2001021153220.1385@zhn.tzk.pbz>
References: <CABXGCsODr3tMpQxJ_nhWQQg5WGakFt4Yu5B8ev6ErOkc+zv9kA@mail.gmail.com> <20200101141748.GA191637@mit.edu> <CABXGCsOv26W6aqB5WPMe-mEynmwy55DTfTeL5Dg9vRq6+Y6WvA@mail.gmail.com> <CABXGCsNkzPrjqMRaWpssorxzhMLWBvLeSw9BpKYr_DW4LJQECQ@mail.gmail.com> <20200102110817.ahqaqidw3ztw3kax@10.255.255.10> <CABXGCsNkm3VuzO60WBCi4VJmDnO=DmprQ1P=dd0FcW2-+dGc0w@mail.gmail.com> <20200102131434.tky2hquki23laqqo@10.255.255.10> <CABXGCsMV1GRiqrXCQGHqvpBiendU3mG36h0YoG=4nw6spZHq=w@mail.gmail.com> <nycvar.YAK.7.76.2001021153220.1385@zhn.tzk.pbz>

On Thu, 2 Jan 2020 at 21:59, J William Piggott <elseifthen@xxxxxxx> wrote:
>
> You've demonstrated that 'hwclock -w' does not 'reset' the RTC.
>
> Does your new motherboard use a battery backup for the RTC?
> Is the battery good?
>

If you look carefully demonstration the RTC 'reset' happens after
reboot __only__ when 'hwclock -w' have been entered before reboot.
So if I reboot the computer without 'hwclock -w' the RTC will be not reset.

--
Best Regards,
Mike Gavrilov.

Follow-Ups:
- Re: [bugreport] "hwclock -w" reset time instead of setting the right time
  - From: Alexandre Belloni

References:
- [bugreport] "hwclock -w" reset time instead of setting the right time
  - From: Mikhail Gavrilov
- Re: [bugreport] "hwclock -w" reset time instead of setting the right time
  - From: Karel Zak
- Re: [bugreport] "hwclock -w" reset time instead of setting the right time
  - From: Mikhail Gavrilov
- Re: [bugreport] "hwclock -w" reset time instead of setting the right time
  - From: Karel Zak
- Re: [bugreport] "hwclock -w" reset time instead of setting the right time
  - From: Mikhail Gavrilov
- Re: [bugreport] "hwclock -w" reset time instead of setting the right time
  - From: J William Piggott

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