encoder Posted February 15, 2017 Share Posted February 15, 2017 Hi everyone, This is my first attempt to install Sierra on Lenovo G40-80, anyone please help: - the compatible boot pack? - the dsdt.aml? - bios setting? My G40-80: Bios version BOCN93WW, CPU i5-5200 2.2GHz, Ram 4G, HD 5500 1366x768, Wifi AC3160. Thank you, Link to comment Share on other sites More sharing options...
encoder Posted February 15, 2017 Author Share Posted February 15, 2017 When I boot from Usb (uefi mode), i got the error: "EFI UsB device has been blcoked by the current security policy". Do uou have any idea about this? Link to comment Share on other sites More sharing options...
Administrators Hervé Posted February 15, 2017 Administrators Share Posted February 15, 2017 Disable SIP. Google it up if you don't know what it means. Before you ask, Intel wireless will have to be replaced. Link to comment Share on other sites More sharing options...
encoder Posted February 15, 2017 Author Share Posted February 15, 2017 Do I need to remove wireless device before OS installation? Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted February 15, 2017 Moderators Share Posted February 15, 2017 No You'll need to set the DVMT though. See here under prerequisites Link to comment Share on other sites More sharing options...
encoder Posted February 16, 2017 Author Share Posted February 16, 2017 I checked my laptop has 128Mb for dedicated video memory, it seem to I dont need to set DVMT, right? Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted February 16, 2017 Moderators Share Posted February 16, 2017 No, apparently that doesn't indicate what's truly in the BIOS as FireWolf first declare. Better to check to confirm Link to comment Share on other sites More sharing options...
encoder Posted February 16, 2017 Author Share Posted February 16, 2017 I have just tried to boot with the boot pack of E7450 (post #2 without any modifications). The result is as below, do I need to change smt? Link to comment Share on other sites More sharing options...
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