Timeline for New "EFI boot" drive appearing after reverting OS X drive to HFS+
Current License: CC BY-SA 3.0
17 events
| when toggle format | what | by | license | comment | |
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| May 22, 2015 at 6:55 | vote | accept | natario | ||
| May 21, 2015 at 21:27 | comment | added | Redarm | @DavidAnderson Ok, but I can only post the maybe long winded way I'd done it. Your approach without mounting the Recovery HD seems a better direction (had it worked). | |
| May 21, 2015 at 21:15 | answer | added | Redarm | timeline score: 4 | |
| May 21, 2015 at 19:53 | comment | added | natario | Having booted in, I can confirm it is the recovery partition. I still miss a solution though. | |
| May 21, 2015 at 16:55 | comment | added | David Anderson | @Redarm: if you post an answer, I will remove mine. | |
| May 21, 2015 at 16:50 | comment | added | user3439894 | No it will not hurt anything. | |
| May 21, 2015 at 16:16 | comment | added | natario | I can try booting into it and ensure it's disk0s3. Would booting into the real EFI disk0s1 do any harm? ..in case it's correctly labeled. | |
| May 21, 2015 at 16:11 | comment | added | user3439894 | @David Anderson, okay I see what what you're getting at. | |
| May 21, 2015 at 16:08 | comment | added | user3439894 | By default it's hidden in Disk Utility and it can be exposed following info in View & Mount Hidden Partitions in Mac OS X. However that's not join to solve the issue of hiding it from being a choice when holding the option key when booting the Mac. The EFI partition is supposed to be there on the disk look for a way to hide it from showing when holding the option key. | |
| May 21, 2015 at 16:03 | comment | added | David Anderson |
@ user3439894: Patients! I am trying to find a way to confirm that the label "EFI Boot" is associated with partition disk0s3. I know you can change the label using the command bless --folder directory --label name, but I do not know (yet) how to display the existing label in a terminal window.
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| May 21, 2015 at 16:03 | comment | added | Redarm |
Since you have reverted again from CoreStorage, the Recovery Partition is visible again in the boot manager, you show in the screenshot. It has been misnamed (I have seen it myself), but if you boot into it you should recognise the Recovery HD. At the time I renamed mine via the bless command.
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| May 21, 2015 at 15:55 | comment | added | natario |
@user3439894 there was referring to David first question - in System Preferences -> Startup Disk. I definitely see EFI stuff in diskutil list, though I don't know what it is.
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| May 21, 2015 at 15:52 | comment | added | user3439894 | How can you say "I see no EFI stuff there" as it's disk0s1 as it's supposed to be. It's just not supposed to on the boot menu. You'll need to look for a way of hiding it on the boot menu however you should not remove it from disk0. | |
| May 21, 2015 at 15:43 | comment | added | natario | @David (1) I see no EFI stuff there, just OS X and Windows. (2) Updated answer with the output, and (3) MBP 15" early 2011. Thank you. | |
| May 21, 2015 at 15:42 | history | edited | natario | CC BY-SA 3.0 |
added 1119 characters in body
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| May 21, 2015 at 15:34 | comment | added | David Anderson |
A have a few more questions. First, what icons appear when you go to the "Startup Disk" window under the System Preferences application? Second, could you post to your question the output from the command diskutil list? Third, what is the model of your Mac?
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| May 21, 2015 at 14:43 | history | asked | natario | CC BY-SA 3.0 |