ad1 renumbered to ad0

[Matthew Dillon]

:I just rebooted (after running into the "alt-ctrl-F1 hangs with beeper on" bug 
:again), went into the BIOS setup, and enabled audio and SATA (because my 
:friend is talking about getting a big SATA disk). On reaching cryptdisks, it 
:said "device ad1s1e is not a luks device". I checked /dev/ad* and found that 
:it's now ad0. Some months ago, when I upgraded the kernel on the laptop, ad0 
:changed to ad1. What's going on?
:
:Pierre

    Device probe order can change due to BIOS adjustments, which is why
    you should always reference your disk drives by their serial number
    instead of by the device name & unit number.

	ls /dev/serno

	dmesg | less    <--- look for the device, it should also print out
			     the serial number nearby.

    For example, on one of my machines the swap partition is:

	/dev/serno/CVGB951400U5040GGN.s1b

					-Matt
					Matthew Dillon 
					<dillon at backplane.com>