> It's occurred to me that I could set noatime on the root mount to
> avoid a lot of writes to the flash, quite possibly extending the life
> of the flash by a great deal.
> 
> Good idea? Bad idea? Doable but with annoying side effects?

I always set noatime for all file systems include root fs on my notebook
and found no problems.

And I also add nodevmtime to root fs to avoid writes just to update
modified time for pty device, while it makes the idle time of finger/w
completely useless...

Atsushi Onoe