Yum update chnages BIOS setting

[Chuck Forsberg WA7KGX N2469R]

...
> is it possible the BIOS is changing the drive order for some reason and
> you're not noticing?
I have Fedora 18 on sdf and Fedora 16 on sda.
Which version gets booted is a function of the boot order.
This allows me to fall back to Fedora 16 if needed.

If the BIOS boot order changes I get a different Version
of Linux when I boot.  The difference quickly becomes
apparent.

I don't recall the BIOS boot order changing itself except
for the odd Fedora 18 kernel update.

Anyway, why would update change the boot order to a drive
it *<HAS NOT>* written its bootloader to?

-- 
Chuck Forsberg WA7KGX N2469R     caf at omen.com   www.omen.com
Developer of Industrial ZMODEM(Tm) for Embedded Applications
   Omen Technology Inc      "The High Reliability Software"
10255 NW Old Cornelius Pass Portland OR 97231   503-614-0430