All Questions
132
questions
1
vote
0
answers
23
views
Change EFI label for external volume
I am booting a retrogaming system (Recalbox, linux-based) on my Macbook Pro 2009 (Intel, El Capitan) from an SD card (FAT format).
The SD card is currently displayed as "EFI boot" upon boot ...
- 11
0
votes
0
answers
240
views
Is there any efibootmgr command-line equivalent in MacOS to see bootable targets?
I found this text in a book (on linux) and i was wondering if there is an equivalent in MacOS.
"To determine if your system uses a BIOS or UEFI, run efibootmgr. If
you get a list of boot targets,...
- 197
0
votes
1
answer
311
views
Restore partitions table
Just tried to install Windows on an external SSD, but mistakenly deleted partitions on a Mac SSD from the Windows installer. I had 2 partitions:
Macintosh HD (APFS)
MacData (ExFat, ~108 GB)
So I ...
0
votes
0
answers
84
views
Are there keyboardless options to enter macOS Recovery Mode? (possible broken by bad Windows EFI purge)
I acquired a 2009 iMac that had a Windows partition which was apparently erased during formatting to be sold. The computer now tries to boot, via EFI, the missing Windows partition as default. I can ...
- 1
0
votes
0
answers
38
views
Startup key combinations don't work after disk swap, cannot boot into live installation media
I recently replaced my old iMac's HDD with an SSD. The SSD had a Linux distribution installed in it, but I didn't bother formatting it because I knew it would be formatted during OS installation.
I ...
- 185
10
votes
0
answers
9k
views
Let's try to fix the "Sleep Wake failure in EFI -- Failure code:: 0xffffffff 0x0000001f"
I have had this well-known issue for a way too long time...
Now it got unbearable and I'm hoping to find help here.
The issue
For those unfamiliar with it, here's the general description:
Starting ...
- 201
2
votes
1
answer
3k
views
Rename EFI boot entries (MacBook Air)
I can't figure out how to rename boot entries on a MacBook Air 2012, i.e. those that appear when holding alt during boot.
The problem was initially that my EFI Ubuntu installation could only be booted ...
- 2,125
1
vote
1
answer
548
views
Disk Utility deletes my Windows EFI partition
I am trying to multiboot Windows, Linux and macOS Catalina all installed on the same drive. I can get it working quite easily if macOS is the first OS on the drive.
However I have problems if my drive ...
- 153
3
votes
1
answer
806
views
How can I use rEFInd boot manager without an enter key?
I have a MacBook Air (11-inch, Late 2010) (it’s old I know) and I have installed rEFInd on an USB. The thing is, my return key does not work, so rEFInd is basically useless. Is there any way rEFInd ...
0
votes
1
answer
977
views
MacBook main volume can't be mounted during boot
MacBook 7.1 (white unibody) from 2010, I have upgraded to a new SSD some years ago. During startup the MacBook turns off when the loading bar is at about 80%. Booting in verbose mode I can see the ...
- 11
1
vote
1
answer
409
views
Why isn't Startup Manager showing Ubuntu Netboot USB - mid 2010 imac 21.5"
Apologies if this question is inappropriate for this forum I am not sure whether I should be on the Apple or Ubuntu StackExchange.
I am trying to turn an iMac mid 2010 21.5" into a home server by ...
- 113
0
votes
1
answer
250
views
Do the Mojave or Catalina patchers support AMD PC GPUs or do you need a flashed card for this?
In the past, I had used dosdude1's High Sierra patcher to get macOS 10.13 on an older Mac Pro. However, the GPU in this machine is a non-flashed AMD R9 270X, so I couldn't get a boot screen and had to ...
- 2,556
1
vote
1
answer
2k
views
Mid-2012 MBP Bootcamp Installation
I have been trying unsuccessfully for the past few days to install Windows 10 on my mid-2012 15" MacBook Pro. I've read a few different sites (including this one), but I am just struggling to ...
- 13
2
votes
1
answer
20k
views
How do you create a rEFInd boot manager USB disk?
The following command does not run, it returns a "file not found" message. The instructions do not say where the downloaded file should be placed, nor whether it should be unzipped or not!
...
0
votes
1
answer
288
views
Dual boot (old model) MacBookPro9,2 running new macOS (APFS) without rEFInd
Is it even possible to dual boot macOS without using rEFInd? In my system, I have a EFI, APFS and Ext4 partitions storing ESP, macOS (either Mojave or Sierra) and Debian. I used to be able to dual-...
- 101