On Thu, 18 May 2017 16:25:34 -0600
William <mattison.computer(a)yahoo.com> wrote:
[snip]
I knew that the older motherboards had batteries. But I thought the
newer ones used something like flash (or other persistent) memory.
It did not occur to me that booting might want the date/time before
the boot process reached the point of being able to access the
internet.
The kernel sets system time from the saved time, and then corrects it
from the web when net access is up. If it is too far off, it won't
correct it.
Fedora seems to have a huge number of commands. Does Fedora have a
command to report the condition of a full-sized tower motherboard
battery? If yes, what is that command?
I am not aware of any way to do that, though I haven't checked the BIOS
on boot to see if that voltage is displayed. A quick web search turned
up nothing. The battery is only a buck or two, and they are sold even
in some grocery stores. It might be a little aged on the shelf, but
should still do the trick. CR2032 is the one you want.