On Sun, 28 Jul 2013, Conny Andersson wrote:
Hi Warren and Polytropon,
A few minutes ago I booted up from a FreeBSD-8.4-RELEASE-amd64-memstick.img
to experience that it is sysinstall that is used in that release.
Next, I did a 'dummy' custom installation. And, as I supposed sysinstall
recognized disk ada0 as ad4 and disk ada1 as ad6. Then I aborted sysinstall
and rebooted in to my FreeBSD 8.3-Release.
Well, AHCI (Serial ATA Advanced Host Controller Interface driver) seems
involved when identifying disks and slices. But, only on newer computers who
has this option set to on in the BIOS. Maybe, bsdinstall in FreeBSD 9.0 and
onwards can make use of AHCI directly.
At some point, the old ad(4) driver was replaced with the new ada(4)
driver. To provide backwards compatability, the old ad devices names
are still available in /dev. I don't know when FreeBSD 8.X switched to
the ada(4) driver.
Neither ad nor ada devices require AHCI. If it is available, it gives a
small but noticeable speed increase. Otherwise, it should make no
difference.
More apropos labels: The latest BIOS version 2.4.0 for Dell T1500 does not
support UEFI/GPT/GUID. As far as I know, Dell only have the Unified
Extensible Firmware Interface on its PowerEdge servers.
There is more than one kind of label. There are filesystem labels
like we are talking about, there are GPT labels, there are generic
labels. The ones being suggested are filesystem labels:
http://www.wonkity.com/~wblock/docs/html/labels.html
FreeBSD supports GPT without UEFI. It doesn't matter in this case,
since you already have MBR.
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