[yocto] Busybox hwclock.sh initscript issues

[Gary Thomas]

On 2015-09-17 23:28, Craig McQueen wrote:
> I'm using Yocto dizzy. I've found a couple of issues with the Busybox hwclock.sh initscript.
>
> 1) The script checks that /sbin/hwclock exists at the start. But after that it runs hwclock without an explicit /sbin/hwclock path. So it only works if /sbin/ is in the PATH. Thus it doesn't run properly when called from e.g. cronie which doesn't run with /sbin/ in the PATH.
>
> 2) The bootmisc.sh initscript uses the time from /etc/timestamp if the hwclock time is older. That's good. But then by default, hwclock.sh runs after bootmisc.sh, and unconditionally overwrites the system time from the hwclock. So on a system without a functional hwclock, the /etc/timestamp feature basically doesn't work. One solution is modify INITSCRIPT_PARAMS_${PN}-hwclock so it doesn't run at start-up (I am doing that in a busybox bbappend).

Why do you think it doesn't work?  On a system without a
functioning hardware clock, at least the time stamp moves
forward on every boot/shutdown.

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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