[U-Boot-Users] Fail Safe: Redundant U-boot Images in Flash??? ?
frannk_m1 at yahoo.com
Sat Sep 24 00:23:52 CEST 2005
--- "Eisenhut, Daniel (GE Healthcare)"
<Daniel.Eisenhut at med.ge.com> wrote:
> > >
> > > > So what happens if the CRC is correct, but the new image
> > > a
> > > > bug (functional ?) in it....
> > >
> > > Then you should of tested your code before you released
> > > If the
> > > CRC passes, then it is the same as what you tested.
> > >
> > Famous last words. Sometimes corner cases are missed. I
> > know about you, but I realized a long time ago I am not
> > and make mistakes. So what do you do when the hardware
> > because of some unforseen proble? Just sit in a loop and
> > forever?
> No, no one is perfect. But to imply that we should forgo
> fail safes to protect against the power failing right as we
> programming flash or flash becoming corrupt just because we
> still have a bug in our code, is just plain foolish.
I didn't say that. The point I was trying to make is if for
whatever reason the image doesn't boot, you should have a fall
back method. if you don't, you will continually reboot forever..
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