Re: Secure Boot / UEFI issue?
An exact model number of your IdeaPad would be great. I know the new Y500 series (just ordered one) are set up to use a 5600 RPM 1TB drive and the SSD as Intel Rapid Storage Technology (IRST) -- esentially a huge hard drive cache. It is also enabled to do this from the factory. This would explain why Windows is booting up more slowly than before -- you trashed the IRST drive -- so it's reading everything from the painfully slow 5600 RPM drive.
However, I've also heard that, with IRST enabled, Linux is not able to directly detect the drive as it's set up using RAID (or some strange variant since the drives are not identical in size).
Quite honestly, I'm not sure if any of this would actually produce the error you see as I've not had the opportunity to play with it -- mine hasn't shipped yet =( That said, if the SSD is actually set to use IRST, it is recommended (via the Ubuntu Help page on UEFI) to disable IRST in your UEFI BIOS before attempting an installation. This is probably because even with the OS isntalled on the physical HDD, the UEFI BIOS will attempt to read from the HDD but actually read from the IRST cache instead -- that's why it's there.
On top of that, when Window boots, it will probably re-initialize the SSD as an IRST drive, effectively destroying everything you installed on it and wasting a write cycle to boot.
Again, I have not had any experience with these laptops but I've been doing a lot of reading while I prep to do the Ubuntu installation on a UEFI SecureBoot comptuer -- something I've never had the opportunity to try. So, what I'm saying is just from things that I've researched in preparation for my new computer. Try it out. If it doesn't work then it was worth a shot!
Also, I have heard that some computers are locked to only do a Windows SecureBoot and nothing else -- this may be one of them.
Last edited by Githlar; May 4th, 2013 at 11:41 AM.
Better to remain silent and be thought a fool, than to speak and remove all doubt. - English Proverb