> And she changed it from AHCI to compatibility mode (had to change itto
> that mode to make the drive being recognized?), which is not the best
> setting regarding speed.
Alexander: The she is actually a he :)
> Quite right, sorry, I'd read it backwards. So presumably either a bug
> in the
> AHCI support, or a limitation/bug of the kernel driver?
> jh
John: Actually, this is a complete false alarm.
Actual Solution:
You don't have to change anything on these laptops. But it is a good tip
that when installing from external cd/dvdrom, if it first does not work,
change usb port and try again.
I changed back the BIOS to AHCI. I was previously plugged into the top
left USB port I.e. the one on the left hand side closes to the monitor
or back side.
When lenovo's external CDROM/DVD is plugged into this port, I am unable
to install linux in general or other OS's. Once I plug it into any of
the other USB ports bottom left or right, it works perfectly.
No wonder I haven't found any problem posts regarding x220 and
CentOS/RHEL.
Thanks for all your time supporting me. Fantastic responses on this
mailing list.
Use external CD/DVD ROM, just ensure to plug it into the right port :)
Cheers,
Janne "Janski" Nyman
E: jnyman@xxxxxxxxx
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