How many EFI partitions with Bootcamp

Discussion in 'macOS High Sierra (10.13)' started by milomak, Jan 12, 2018.

  1. milomak macrumors member

    Joined:
    Apr 25, 2010
    #1
    There was a power failure while I was in Bootcamp.

    What followed after that was that if I pressed the alt key, the Bootcamp drive was no longer visible.

    In trying to bring it back from the dead, I noticed that there were 2 EFI partitions that I could see (the drive is still there and intact with its information)

    as can be seen both disk0 amd disk1 have EFI type partitions.

    Code:
    $ diskutil list
    /dev/disk0 (internal, physical):
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *121.3 GB   disk0
       1:                        EFI EFI                     209.7 MB   disk0s1
       2:          Apple_CoreStorage iMac                    120.3 GB   disk0s2
       3:                 Apple_Boot Boot OS X               134.2 MB   disk0s3
       4:                  Apple_HFS Boot OS X               134.2 MB   disk0s4
       5:           Linux Filesystem boot                    73.4 MB    disk0s5
       6:           Linux Filesystem                         440.4 MB   disk0s6
    
    /dev/disk1 (internal, physical):
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:      GUID_partition_scheme                        *2.0 TB     disk1
       1:                        EFI EFI                     209.7 MB   disk1s1
       2:          Apple_CoreStorage iMac                    732.5 GB   disk1s2
       3:                 Apple_Boot Recovery HD             650.0 MB   disk1s3
       4:       Microsoft Basic Data BOOTCAMP                1.3 TB     disk1s4
    
    /dev/disk2 (internal, virtual):
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                  Apple_HFS Macintosh HD           +847.0 GB   disk2
                                     Logical Volume on disk0s2, disk1s2
                                     94350E47-4BD3-48A2-B9DC-454AACAF0083
                                     Unencrypted Fusion Drive
    
     
  2. h9826790 macrumors G4

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #2
    Not sure how to fix it, but for your info, my pure Bootcamp Windows 10 SSD is like this.
    Screen Shot 2018-01-13 at 04.30.00.jpg
     
  3. milomak thread starter macrumors member

    Joined:
    Apr 25, 2010
    #3
    Your post answers what I wanted to know. Each of your disks has an EFI partition
     
  4. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #4
    Every GUID drive should have an EFI partition.
     

Share This Page