Hidden Partitions

[AuRe]

How do I list in terminal all the partitions in my hdd?
In apple service gave me a command and I listed hdd partitions of 550Kb and 1mb but I didnt write it and I dont remember.
Any one knows which is it?

 

[maflynn]

The terminal diskutil list will do this

 

[AuRe]

The terminal diskutil list will do this

But what should I write? what command?
Is there a list of those commands?

 

[maflynn]

Type in from the terminal

diskutil list

That will give you a listing of your drives.

 

[AuRe]

Type in from the terminal

diskutil list

That will give you a listing of your drives.

is it correct?
209Mb EFI???

 

[chown33]

is it correct?
209Mb EFI???

It looks correct to me.

209MB is about 0.2 GB, or 0.0002 TB.

 

[w0lf]

I find it easier to enable debug mode in diskutility which then lets you show hidden partitions.

defaults write com.apple.DiskUtility DUDebugMenuEnabled 1

Also the 209MB EFI is necessary it's like the boot loader that interfaces your software and firmware/hardware. http://en.wikipedia.org/wiki/Unified_Extensible_Firmware_Interface

 

[AuRe]

defaults write com.apple.DiskUtility DUDebugMenuEnabled 1

What is it for?
Do I write in terminal?

 

[Dalton63841]

defaults write com.apple.DiskUtility DUDebugMenuEnabled 1

What is it for?
Do I write in terminal?

If you use that command in terminal, then Disk Utility app will show the hidden partitions.

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I find it easier to enable debug mode in diskutility which then lets you show hidden partitions.

defaults write com.apple.DiskUtility DUDebugMenuEnabled 1

Also the 209MB EFI is necessary it's like the boot loader that interfaces your software and firmware/hardware. http://en.wikipedia.org/wiki/Unified_Extensible_Firmware_Interface

Actually the EFI partition is not absolutely necessary. The EFI partition != the actual EFI. You can restore a Mac partition to a fresh hard drive with MBR partition scheme and boot it on a Mac with no EFI partition. The EFI partition IS however used for certain things, for instance EFI firmware updates will fail without it.

 

[AuRe]

Thanks all for your help

 

[benwiggy]

is it correct?
209Mb EFI???

Yes. It is perfectly normal for your drive to have a number of other partitions: the EFI partition, the recovery partition and the "main" partition that you use.