krazy.com Posted February 19, 2016 Share Posted February 19, 2016 Hello! I have installed El Capitan in my E6420 following Jake Lo's "Dell Latitude / Inspiron El Capitan Clover Guide". (used E6220 bootpack). I still have to fine-tune installation but I have one doubt regarding Clover boot: Why I can only boot legacy? Even enabling UEFI in BIOS I can´t see UEFI boot entry after pressing F12.... My plans are to dual boot Windows 10, so partition must be GPT pure... Thx 1 Link to comment Share on other sites More sharing options...
Moderators Jake Lo Posted February 19, 2016 Moderators Share Posted February 19, 2016 In order to use UEFI, you must format the EFI partition to Fat16. See here. Link to comment Share on other sites More sharing options...
krazy.com Posted February 19, 2016 Author Share Posted February 19, 2016 Thx for the reply.... If I do so... my disk will be hybrid GPT... is that correct? What about HFSPlus.efi... could address the issue without changing gpt? EDIT: I had an idea... My goal is to dual boot using UEFI... what about install windows and use its EFI partition to house clover? Link to comment Share on other sites More sharing options...
Administrators Bronxteck Posted February 19, 2016 Administrators Share Posted February 19, 2016 you can try using windows EFI partition to install clover. since you will need the microsoft folder and its files to boot windows any ways. Link to comment Share on other sites More sharing options...
krazy.com Posted February 20, 2016 Author Share Posted February 20, 2016 I'm confused... Is that something with my process? Just formatted HDD with installation disk of MAvericks ( half disk GPT/GUID and half free space) then installed El Capitan ... didn't proceed with post installation... the EFI partition in OSX disk is formatted FAT32... I'm reading a lot... and what I've learned and experienced is that if a GPT disk have a FAT partition windows won't install considering the disk GPT Hybrid... What am i doing wrong? Link to comment Share on other sites More sharing options...
Administrators Bronxteck Posted February 20, 2016 Administrators Share Posted February 20, 2016 maybe you have to have it formatted as fat 16 not fat 32 like jake suggested in post 2 Link to comment Share on other sites More sharing options...
krazy.com Posted February 22, 2016 Author Share Posted February 22, 2016 Formatting the EFI partition FAT16 will solve the UEFI boot issue... but not the Hybrid GPT table... I'm considering keep clover in a pendrive to boot... but how to maintain the disk pure GPT? Can I format the OSX's EFI partition GUID/Journaled and then convert the disk pure GPT to install Windows? Off-topic: I had the issue with CoreStorage (same as this topic: https://osxlatitude.com/index.php?/topic/8668-e6420-eo-capitan-cant-boot-from-hdd/) and was solved reinstalling the system... Link to comment Share on other sites More sharing options...
Administrators Bronxteck Posted February 22, 2016 Administrators Share Posted February 22, 2016 efi partition is always a fat format. it should still be guid. i think the issue is when you use MBR partition shema and install hfs to that it creates a hybrid MBR disk. Link to comment Share on other sites More sharing options...
krazy.com Posted February 23, 2016 Author Share Posted February 23, 2016 Just installed Clover in a pen drive and booted UEFI thanks to Jake Lo tip.... the installation of Clover was a bit different from the guide... later I will register it... The boot time was way too fast.... But I still need to install W10 in the same disk.... Need some ideas... Link to comment Share on other sites More sharing options...
Administrators Bronxteck Posted February 23, 2016 Administrators Share Posted February 23, 2016 when you have the windows install media on hand use the bios boot menu to select uefi install media? Link to comment Share on other sites More sharing options...
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