Re: boot time on Linux

[Po Lu]

Natanael Copa <natanael.copa@gmail.com> writes:

> 2) Even if it does exist, there is no guarantee that the timestamp is
> correct. There are machines without RTC (Raspberry PI for example),
> and in this case the time stamp may end up to be the same every reboot
> (if correctly set up it should save the shutdown time for the reboot
> and set time to this on next boot, but there is no guarantee).

If so, doesn't that discount the possibility of deriving the boot time
from the timestamp of any particular file?  Since AFAIU these machines
lacking a TOY clock are relatively widespread?