e1000 Posted February 23, 2017 Share Posted February 23, 2017 Hello, Sorry for my bad English, I'm french. I have an E6320 i5 intel 3000HD I have make my USB key with the how to for Mavericks. All work fine. But With "El Capitan" or 3 sierra I have problem during the process installation : With El capitan the computer reboot a the beginning of the installation process. With sierra the computer reboot a the end or show me this error : "the installer payload failed signature check" I try to make a lot of USB key with different Sierra install app / DMG and utility. I try an other usb port. I try to update date with ntpdate -u time.apple.com. I tri with an other E6320 computer a have the same problems... I don't have any idea. Thank you very much for your help Link to comment Share on other sites More sharing options...
Administrators Hervé Posted February 23, 2017 Administrators Share Posted February 23, 2017 You should be Ok with Jake's usual Clover guide. Failing that, you may turn to my E6220 Enoch guide and follow the same process. You may use the E6320 DSDT instead of the E6220's. Make sure you've configured your BIOS according to the recommended settings. You can refer to this thread. Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted February 23, 2017 Moderators Share Posted February 23, 2017 Try Pepto's guide Link to comment Share on other sites More sharing options...
e1000 Posted February 23, 2017 Author Share Posted February 23, 2017 Try Pepto's guide I try it You should be Ok with Jake's usual Clover guide. Sorry, I don't understand what I have to do ? I try with your guide. Thank's Link to comment Share on other sites More sharing options...
e1000 Posted February 23, 2017 Author Share Posted February 23, 2017 unnamed by emile SAVARY, sur Flickr Link to comment Share on other sites More sharing options...
Administrators Hervé Posted February 23, 2017 Administrators Share Posted February 23, 2017 Did you format your target HDD partition as "OS X Extended (Journaled)" on a GPT partition scheme? Link to comment Share on other sites More sharing options...
e1000 Posted February 23, 2017 Author Share Posted February 23, 2017 yes of course ! Link to comment Share on other sites More sharing options...
e1000 Posted February 23, 2017 Author Share Posted February 23, 2017 But I use a hdd source on esata port. Maybe I have to use it with usb ? Link to comment Share on other sites More sharing options...
Administrators Bronxteck Posted February 23, 2017 Administrators Share Posted February 23, 2017 maybe your installer image is corrupted. download a fresh one from appstore and remake the usb installer. Link to comment Share on other sites More sharing options...
e1000 Posted February 23, 2017 Author Share Posted February 23, 2017 Yes, but a try with 3 other image installer 2 sierra and 1 capitan. I download an other one this night. thank's Link to comment Share on other sites More sharing options...
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