Can't mount EFI folder of boot drive - 'Device BSD name' seems to be wrong

[SimonT]

For some reason neither EFI Mounter nor Clover Configurator can 'see' the EFI folder on my SSD boot drive. I know it's there because it boots my hackintosh.

Clover Config shows 4 partions: Desktop SSD (which has the OS installed); Preboot (no idea why that is there); Recovery; and VM.

The really strange thing is that the Desktop SSD partition has the Device BSD name of: disk4s1 (It also has 'capacity in use' as 160GB - so it's definitely the partition with the OS and all my data on it.

As I understand it, the EFI partition should be 's1' - so that's probably why there's a problem.

Can anyone recommend what to do next, considering the machine is working fine, and I have time machine backups as well as a Macbook and a hard drive enclosure to work with?

This has happened because of issues with updating Clover, when I had to delete and recreate my EFI partitions and do a complete reinstall. I could do the same thing again - or is there a way to change the 'Device BSD name'?

 

[SimonT]

When I try to mount that 'Preboot' partition using Terminal, I get the following:

mount: /dev/disk4s2: unknown special file or file system.

And I get the same with the other partitions. Not sure if that is to be expected or not.

 

[BreBo]

As I understand it, the EFI partition should be 's1' - so that's probably why there's a problem

In Terminal:

diskutil list

Post output

 

[SimonT]

I think I've failed to understand how the new APFS file scheme works. Disk 1 seems to be my boot disk, but disk 4 is somehow the same disk, with the OS and my data on it.

Here's the output:

diskutil list

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *200.0 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_HFS 200GB ex-mbp 199.7 GB disk0s2


/dev/disk1 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *256.1 GB disk1

1: EFI EFI 209.7 MB disk1s1

2: Apple_APFS Container disk4 255.9 GB disk1s2


/dev/disk2 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk2

1: EFI EFI 209.7 MB disk2s1

2: Apple_HFS Hitachi 1TB 999.9 GB disk2s2


/dev/disk3 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk3

1: EFI EFI 209.7 MB disk3s1

2: Apple_HFS Store 741.5 GB disk3s2

3: Apple_HFS Time Machine 258.2 GB disk3s3


/dev/disk4 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +255.9 GB disk4

Physical Store disk1s2

1: APFS Volume DesktopSSD 172.4 GB disk4s1

2: APFS Volume Preboot 18.9 MB disk4s2

3: APFS Volume Recovery 518.1 MB disk4s3

4: APFS Volume VM 1.1 GB disk4s4

 

[jcds83]

Don't forget that BSD names of disks may change after every reboot.
In Terminal, diskutil list or use ESP Mounter pro (do a search on the net).

 

[BreBo]

I think I've failed to understand how the new APFS file scheme works. Disk 1 seems to be my boot disk, but disk 4 is somehow the same disk, with the OS and my data on it.

You should mount the EFI partition on disk1s1