What is the extra partition, is it normal?

[Ckar]

I recently used Carbon Copy Cloner and transferred everything to a new SSD.

I followed these instructions: https://discussions.apple.com/docs/DOC-4122

Here is my SSD:

Number Start (sector) End (sector) Size Code Name
1 40 409639 200.0 MiB EF00 EFI System Partition
2 409640 467330407 222.6 GiB AF00 Untitled
3 467330408 468862087 747.9 MiB AB00 Apple_HFS_Untitled_2

What is number 3 that is taking up 747 mb and can I reclaim the space and how?

 

[Intell]

That number three partition is very likely the recovery partition and best left in place and untouched.

 

[Ckar]

Was that partition always there? I didn't check before I swapped disks.

 

[Intell]

That partition is there by default on Lion and newer systems.

 

[Weaselboy]

I recently used Carbon Copy Cloner and transferred everything to a new SSD.

I followed these instructions: https://discussions.apple.com/docs/DOC-4122

Here is my SSD:

Number Start (sector) End (sector) Size Code Name
1 40 409639 200.0 MiB EF00 EFI System Partition
2 409640 467330407 222.6 GiB AF00 Untitled
3 467330408 468862087 747.9 MiB AB00 Apple_HFS_Untitled_2

What is number 3 that is taking up 747 mb and can I reclaim the space and how?

It is odd that it is 747.9MB and not named correctly if it is the recovery partition. It is normally 650MB and named "Recovery HD". It is a hidden partition and not seen in Finder.

Run the below command in Terminal and post up the output. That will show if you have a recovery partition or not.

diskutil list

 

[Ckar]

Here is the output

diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *240.1 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  Apple_HFS Storage                 239.1 GB   disk0s2
   3:                 Apple_Boot Recovery HD             784.2 MB   disk0s3

 

[Wuiffi]

Here is the output

diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *240.1 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  Apple_HFS Storage                 239.1 GB   disk0s2
   3:                 Apple_Boot Recovery HD             784.2 MB   disk0s3

do you know what the recovery hd is for? - was your question answered or should we explain it to you more detailed?

 

[Weaselboy]

Here is the output

diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *240.1 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  Apple_HFS Storage                 239.1 GB   disk0s2
   3:                 Apple_Boot Recovery HD             784.2 MB   disk0s3

Hmmm.... odd. Don't know how you got that size Recovery HD partition. Were you messing around with partition sizes at any step along the way?

Can you do a command-r boot to recovery just to make sure it is okay?

Every one I have ever seen is 650MB exactly like this.

 3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

I Googled a little and I do see some mentions of people with a 784.2MB recovery partition, and some of those posts are in the context of a Carbon Copy Cloner clone. Strange.

 

[Ckar]

Holding down Command R at startup boots the laptop into OS X utilities.

 

[Weaselboy]

Holding down Command R at startup boots the laptop into OS X utilities.

So the recovery partition is there and working. You should be good to go then. I just have never seen it that size before. Hmm

 

[Intell]

What version of Mac OS X is on that machine?

 

[Weaselboy]

What version of Mac OS X is on that machine?

I have had Lion, Mountain Lion, and now Mavs and the recovery partition has always been 650MB on all three. Have you ever seen that 784MB size Ckar is seeing?

 

[Intell]

I have had Lion, Mountain Lion, and now Mavs and the recovery partition has always been 650MB on all three. Have you ever seen that 784MB size Ckar is seeing?

I have on a retina Macbook Pro with a stock installation of Lion. Confused me a bit as well.

 

[tigerintank]

have a late 13 rMBP and it has the 650MB version

#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *500.3 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_HFS Macintosh HD 499.4 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3

 

[Ckar]

I am on Mavericks.