Yum update chnages BIOS setting

[Michal Jaegermann]

On Sun, Nov 25, 2012 at 03:31:46PM -0800, Chuck Forsberg WA7KGX N2469R wrote:
> Here are the two device.map files.
....

> [root at omen grub2]# cat dev*map
> # this device map was generated by anaconda
> (hd0)      /dev/sdf

Hm, grub2 device maps which I have seen looked like that:

(hd0)	/dev/disk/by-id/ata-WDC_WD6401AALS-00L3B2_WD-WCASYA950915
(hd1)	/dev/disk/by-id/ata-WDC_WD1200JS-22MHB0_WD-WCANM9149524

with possibly less or more entries but which were allowing to identify
unambiguouslsy about which disks we are really talking about.  Why you
are seeing something else I have no idea.  Grub2 has for me many dark
corners.  Are you getting the same what you quoted if you will run

         grub2-mkdevicemap -n -m /var/tmp/device.map

   Michal