[coyotos-dev] coyotos.sleep, sleepTill, the epoch

Valerio Bellizzomi devbox at selnet.org
Tue Feb 13 16:56:28 CST 2007


On 13/02/2007, at 8.27, Jonathan S. Shapiro wrote:

>Valerio:
>
>It is EXTREMELY difficult to do that in the installation tool. Please
>explain how to record installation time on hardware that does not have
>any time of day clock. Please explain how to make this record
>*meaningful* when there is no counter that runs during system powerdown
>and no way to re-synchronize the clock.

But if you have no clock, you skip the whole step.
If you have a clock, you grab it and write it to a disk location.

>
>Finally -- and I have asked this before -- please give a concrete
>motivating example where knowing the time of installation actually helps
>some real application.

A protected historical record of image installation date helps in:
1. diagnostics, and statistics for large numbers of machines.
2. forensic analysis.


val




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