[Novalug] AHCI -- continuing SSD saga
novalugml at jgcomp.com
Mon Dec 27 18:26:26 EST 2010
When I bought the SSD I also got a 1.5TB drive to
store non-OS data. While troubleshooting the SSD
I've installed Fedora 14 on the rotating disk just
to have something running.
I've been poking around in the OCZ.com and other SSD-
related forums re. my difficulties with the SSD. One
general recommendation I've seen is to use AHCI, not
legacy mode for the SATA interface. I did not remember
having the choice in my AMI bios. But an FAQ said in
AMI bios' with nVidia chipsets, the choice is hidden as
"activate the nVidia RAID mode".
On a reboot, I activated the RAID mode and as I expected,
the bootable drive was not seen. Turn it off and things
are back to normal. Some time soon I'll try to install
F14 to the SSD with AHCI activated.
I've seen articles on how to switch modes without the
need to reinstall/reformat. These were for Windows and
involved a couple of registry changes and a reboot. The
changes basically caused Windows to load and use a dif-
ferent disk driver.
Are there any similar tweaks to go from non-AHCI mode to
AHCI mode for Linux? I don't care if I have to redo the
new 1.5TB drive. Not much on it yet. But there is also
a 300GB drive with years worth of data. If nothing else,
I'll mount the 300GB drive in an external USB case and
transfer data from it.
Jon H. LaBadie novalugml at jgcomp.com
12027 Creekbend Drive (703) 787-0884
Reston, VA 20194 (703) 787-0922 (fax)
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