Can't delete empty partition

[DigiScoop]

I had El Capitain on my computer in a separate partition. I rebooted my computer to recovery mode and erased the volume with disk utility. Immediately after the partition status changed to empty. and it was grey shown as greyed and I could not delete it or resize it.

I have 1tb SSD "APPLE SSD SM1024F"

Currently my "diskutil cs list" looks like this:

+-- Logical Volume Group 4869FEF7-1F62-4DF4-BE7E-722E71F4FB89

=========================================================

Name: Macintosh HD

Status: Online

Size: 803550294016 B (803.6 GB)

Free Space: 5499891712 B (5.5 GB)

|

+-< Physical Volume FAC26F4E-3D23-44AF-BD8E-30AC9E6EADCF

| ----------------------------------------------------

| Index: 0

| Disk: disk1s2

| Status: Online

| Size: 803550294016 B (803.6 GB)

|

+-> Logical Volume Family 394ABF57-E9A1-4F12-8701-02B66E5D2EA9

----------------------------------------------------------

Encryption Status: Unlocked

Encryption Type: None

Conversion Status: NoConversion

Conversion Direction: -none-

Has Encrypted Extents: No

Fully Secure: No

Passphrase Required: No

|

+-> Logical Volume 726B0AA5-A4E1-430E-821E-C42889A46E0D

---------------------------------------------------

Disk: disk2

Status: Online

Size (Total): 797698080768 B (797.7 GB)

Conversion Progress: -none-

Revertible: Yes (no decryption required)

LV Name: Macintosh HD

Volume Name: Macintosh HD

Content Hint: Apple_HFS


I have no idea how to get rid of the empty partition to resize my current "Yosemite" partition back to full 1Tb (currently 803MB in use and all the disk utilities partition tools are grayed out"

 

[MacUser2525]

You need install USB for EC to boot from to do what you want. Apple helpfully makes it so that no previous version of OSX may delete a partition created by a later version of itself, been this way for years.

 

[Weaselboy]

Command-r back to recovery and from there open Terminal in the Utilities menu. Then enter the line below. That will turn off (revert) core storage on the Yosemite volume and allow you to resize it normally.

diskutil cs revert /

 

[Julinka]

Command-r back to recovery and from there open Terminal in the Utilities menu. Then enter the line below. That will turn off (revert) core storage on the Yosemite volume and allow you to resize it normally.

diskutil cs revert /

Oh my goodness! I spent hours online trying different solutions, none of them worked, but this simple one did!!! THANK YOU,