-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Florin Iucha wrote: > On Mon, Dec 29, 2008 at 09:32:28AM -0600, Josh Paetzel wrote: >> Here's another gotchya you'll want to watch out for in laptops. (as if >> there wasn't enough already) >> >> I was running a 32 bit OS on my last laptop (An IBM/Lenevo T60 with a >> core 2 duo 1.66 ghz) which was fully capable of running a 64 bit OS. I >> was unable to virtualize 64 bit operating systems due to not being able >> to enable VT in the BIOS. >> >> You need VT support both in the actual hardware (cpu) as well as in the >> BIOS in order to virtualize a 64 bit OS from a 32 bit host OS. > > The BIOS on my T60 supports virtualization just fine. IIRC the fix > went in about two years ago, as I bought it in March 2007 and I had no > problems with virtualization out of the box. > > florin Having sold it a few months ago I can't easily come up with the full model number, but mine was (of September 2007) running the latest BIOS availale from Lenovo and did not have VT support in it. There were quite a few revisions of the T60 made, some of the early ones didn't even have core 2 duos in them. I think the relevant message is "Even in the same model line your milage may vary." Also, I will reiterate, not having VT support will only bite you if you want to run a 64 bit guest from a 32 bit host. Other combinations of host and guest will work fine (eg: 32 bit host/32 bit guest, 64 bit host/64 bit guest, 64 bit host/32 bit guest) without VT suppport in the BIOS. - -- Thanks, Josh Paetzel PGP: 8A48 EF36 5E9F 4EDA 5ABC 11B4 26F9 01F1 27AF AECB -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (Darwin) iEYEARECAAYFAklanUEACgkQJvkB8Sevrst7cACgl2lwyzi4YYbWZKGv+Td0sZsU jocAoIZEMdOU7uquTqhzc5DoNkTlEElO =l9Qu -----END PGP SIGNATURE-----