Recently, there are foreign users in Best Buy the purchase page to Yoga 900-13isk2 notebook give 1 star bad rating, because they can not use the SSD under Linux.
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Then, Lenovo engineering experts replied that they agreed with Microsoft that the purchase of "Signature Edition" (signed version) tagged device lock can only use Windows 10.
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The foreign media learned that it was part of a happy-to-be-Lenovo agreement, and the company found a way to lock down a solid state drive (SSD) in its own RAID mode, which could only be read by Windows.
The effect on the user is that AHCI cannot be turned on in the BIOS, and the hard drive mode will be locked to raid anyway.
After the controversy, Lenovo also made a public statement that they said that those who could not support SSD raid on Linux will release new patches and drivers to solve. The intent of RAID is to improve performance.
Lenovo responds to notebook lock Win10 system: update resolves