freebsd stable - Feb 2008 - FreeBSD 7.0 Questions

I have just installed 7.0 on some new hardware.  Have never tried  
earlier versions.  There are a couple of unexpected items that I do  
not understand.

1.  When booting there are a few messages like:
	acd0: TIMEOUT - READ_BIG retrying....

     When the system is booted off CD (like installation disk), it  
takes about 10 minutes
     after these messages first appear and then it finally starts up  
sysinstall properly.

     After the system is installed on disk, it reboots and just  
continues on past those
     messages with no delays.  Sometimes those messages do not appear  
in dmesg.boot.

     Why are there long delays when booting from CD?

2.  I have 2 SATA drives in the system.  The first is recognized as  
ad10 and the second as
     ad12.  I expected to see ad0 and ad1.

On Wed, Feb 27, 2008 at 11:15:30PM -0800, Doug Hardie
wrote:
> I have just installed 7.0 on some new hardware.  Have never tried earlier 
> versions.  There are a couple of unexpected items that I do not understand.
>
> 2.  I have 2 SATA drives in the system.  The first is recognized as ad10 
> and the second as ad12.  I expected to see ad0 and ad1.
You shouldn't "expect" this in any way shape or form.  The device
numbers are not consistent, and are known to change depending upon lots
of reasons (AHCI disabled/enabled, another ATA controller in place, SATA
in "compatible" mode or "enhanced" mode, etc. etc.).

Thus, never expect the adX devices to "start with 0".

-- 
| Jeremy Chadwick                                    jdc at parodius.com |
| Parodius Networking                           http://www.parodius.com/ |
| UNIX Systems Administrator                      Mountain View, CA, USA |
| Making life hard for others since 1977.                  PGP: 4BD6C0CB |