On 11/19/14 22:27, Nick Holland wrote:
On 11/19/14 19:38, Dutch Ingraham wrote:
On 11/19/14 18:18, Bertrand Janin wrote:
Dutch Ingraham wrote :
Just asking for a sanity check. I tried installing 5.6 from CD on a
WD1600AAJS HDD and was presented with "Available disks are: none." This
seems to be a fairly mainstream drive around for several years (mine being
manufactured in 2010), so I just want to check whether I've missed some
critical install instruction. I followed section 4.5 of the FAQ and
accepted default settings and used entire disk.
...
I don't think it's a drive problem, it doesn't seem to find your disk
controller at all. I would go in the BIOS and play with the disk controller
settings.
-b
Absolutely. Disks are disks. it's the interface that you were missing.
Excellent - thank you, Bertrand.
For anyone else with this particular issue and BIOS version, note that
the "SATA Operation" option may need to be set to "legacy."
That's best avoided, and I suspect you can.
I suspect you went from "Worst setting" to "second worst setting".
Looks like your system was set to "RAID" originally. Most of these
systems have two options -- AHCI and "Legacy", some have the third
option of "RAID". You don't want "RAID"...it is software-only RAID, and
under some conditions you can have the BIOS clobber data on the second
disk that your non-SW RAID OS set up as a second disk.
OpenBSD was one of the first OSs to disable the support of those
controlers in that mode to prevent problems, but at least some Linux
systems do now, too.
AHCI is a huge performance boost over "legacy" in general, and in some
cases, the "legacy" support is horrifically slow, slower than the old
pciide interfaces that never dreamed of AHCI.
Good news is if you flip it from "Legacy" to "AHCI", things will Just
Work if you used DUIDs during setup.
Nick.
Thanks for that elucidation, Nick. You are correct that the initial
setting was "RAID On." This BIOS actually has four choices:
RAID Autodetect / AHCI
RAID Autodetect / ATA
RAID On
Legacy
I did use DUIDs during setup. I'll take the opportunity to look into
this further. Thanks again.
