I had Yosemite on my MacBook Pro. I used Diskmaker X to create a bootable flash drive. Yesterday I did a clean install of El Capitan on my MBP. When I held down the "option" key, I saw "Macintosh HD" & the flash drive. I had minor problems installing El Capitan on my MBP but I figured them out & installed it.
This morning I tried to do a clean install of El Capitan on my Mac mini. It has Yosemite on it. I was able to cancel the installer & get to the Yosemite Desktop without screwing anything up. I started the disk utilities & the flash drive installer was listed. When I held down the "option" key, I saw "Macintosh HD", "Recovery" & "EFI boot". Why didn't I see the flash drive icon? What is EFI boot? What's going on? How do I get the flash drive icon to show up instead of EFI boot?
I read about "bless --info" so I did it & this is what came up:
finderinfo[0]*** 49 => Blessed System Folder is /System/Library/CoreServices
finderinfo[1]: 3751013 => Blessed System File is /System/Library/CoreServices/boot.efi
finderinfo[2]**** 0 => Open-folder linked list empty
finderinfo[3]**** 0 => No alternate OS blessed file/folder
finderinfo[4]**** 0 => Unused field unset
finderinfo[5]*** 49 => OS X blessed folder is /System/Library/CoreServices
64-bit VSDB volume id 0x6500D7AE3A72109E
I don't understand why I was able to do a clean install of El Capitan on my MBP, but not on my mini. I didn't have the "EFI boot" problem when I did a clean install of Yosemite on my MBP & mini. Only the keyboard, mouse & Superdrive are plugged into the back of the mini. Should I unplug the Superdrive? Is it "confusing" OS X?
This morning I tried to do a clean install of El Capitan on my Mac mini. It has Yosemite on it. I was able to cancel the installer & get to the Yosemite Desktop without screwing anything up. I started the disk utilities & the flash drive installer was listed. When I held down the "option" key, I saw "Macintosh HD", "Recovery" & "EFI boot". Why didn't I see the flash drive icon? What is EFI boot? What's going on? How do I get the flash drive icon to show up instead of EFI boot?
I read about "bless --info" so I did it & this is what came up:
finderinfo[0]*** 49 => Blessed System Folder is /System/Library/CoreServices
finderinfo[1]: 3751013 => Blessed System File is /System/Library/CoreServices/boot.efi
finderinfo[2]**** 0 => Open-folder linked list empty
finderinfo[3]**** 0 => No alternate OS blessed file/folder
finderinfo[4]**** 0 => Unused field unset
finderinfo[5]*** 49 => OS X blessed folder is /System/Library/CoreServices
64-bit VSDB volume id 0x6500D7AE3A72109E
I don't understand why I was able to do a clean install of El Capitan on my MBP, but not on my mini. I didn't have the "EFI boot" problem when I did a clean install of Yosemite on my MBP & mini. Only the keyboard, mouse & Superdrive are plugged into the back of the mini. Should I unplug the Superdrive? Is it "confusing" OS X?