I have 399.9GB OSX partition, but the HDD is actually 1TB.
If I click on the partition tool, I then have 999GB displayed (with are not in the partition)
if I try to resize the volume I'm getting a error.
I first thought this was because the disk was encrypted, so I removed the encryption, but same issue, rebooted from internet recovery wasn't even able to erase the whole disk.
UPDATE :
$ sudo gpt -r show disk0
gpt show: unable to open device 'disk0': Operation not permitted
$ diskutil cs list
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group 061EBFDF-338D-4126-9D5B-5429081998BC
=========================================================
Name: Macintosh HD
Status: Online
Size: 400269959168 B (400.3 GB)
Free Space: 15912960 B (15.9 MB)
|
+-< Physical Volume 836846BB-F307-4BD1-B8A6-B4653DD9DA33
| ----------------------------------------------------
| Index: 0
| Disk: disk0s2
| Status: Online
| Size: 400269959168 B (400.3 GB)
|
+-> Logical Volume Family F92C105A-7731-4726-A953-D98C4AEEC998
----------------------------------------------------------
Encryption Type: AES-XTS
Encryption Status: Unlocked
Conversion Status: Complete
High Level Queries: Fully Secure
| Passphrase Required
| Accepts New Users
| Has Visible Users
| Has Volume Key
|
+-> Logical Volume 0FBB6ED9-C176-480D-A7B4-39C655262C2C
---------------------------------------------------
Disk: disk1
Status: Online
Size (Total): 399901720576 B (399.9 GB)
Revertible: No
Revert Status: Reboot required
LV Name: Macintosh HD
Volume Name: Macintosh HD
Content Hint: Apple_HFSX
$ diskutil list
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *1.0 TB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_CoreStorage Macintosh HD 400.3 GB disk0s2
3: Apple_Boot Recovery HD 598.9 GB disk0s3
4: Apple_KernelCoreDump 789.6 MB disk0s4
/dev/disk1 (internal, virtual):
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD +399.9 GB disk1
Logical Volume on disk0s2
0FBB6ED9-C176-480D-A7B4-39C655262C2C
Unlocked Encrypted
diskutil ap list
No APFS Containers found
Best Answer
That's Mixed Hostile Partition Arts. Your partition layout is non-standard:
I recommend to backup your main volume (Macintosh HD) with Time Machine, completely erase the whole disk booted to Internet Recovery Mode and reinstall macOS High Sierra and migrate the backup (or restore the backup after erasing the disk).
A second approach is to reboot (Revert Status: Reboot required!), decrypt the drive if necessary and revert to non-CoreStorage. Then verify disk and main volume:
and repair if required.
Then merge disk0s2, disk0s3 and disk0s4:
This will merge disk0s2 (your old Macintosh HD), disk0s3 and disk0s4 into disk0s2 while preserving the content of disk0s2. I never had a problem merging slices like this but it's always beneficial to have a working (Time Machine) backup of disk0s2 (your Macintosh HD) before merging partitions.
If this step fails to merge the partitions (e.g disk0s4 is "in use"), boot to Internet Recovery Mode and try it again.
Verify disk and main volume again:
Then download and reinstall the latest macOS High Sierra to recreate the recovery partition. I don't think that Recovery Partition 4.0.4 is compatible with High Sierra already.
Finally enable FileVault again.