How do I repartition my Mac to get rid of my dual boot setup?
https://apple.stackexchange.com/questions/192421
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09-10-2020 - |
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I setup dual boot on my Mac (with Ubuntu) and want to get rid of it. The Disk Util GUI shows me:
However attempting to remove the disk0s4 or disk0s5 partitions results in:
Could not unmount partition to be deleted.
From the terminal, running diskutil list, I get:
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *251.0 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_CoreStorage 149.4 GB disk0s2
3: Apple_Boot Recovery HD 650.0 MB disk0s3
4: Linux Swap 8.6 GB disk0s4
5: 11111111-1111-1111-1111-111111111111 92.1 GB disk0s5
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD *149.1 GB disk1
Logical Volume on disk0s2
22222222-2222-2222-2222-222222222222
Unencrypted
Essentially how do I go about reclaiming the space from those two partitions (the swap and my linux partition) without damaging anything Mac related?
And additionally, I think, but I'm not sure if the EFI partition was something to do with the Linux bootloader - do I need it (I've already reset the boot device to Mac).
Update 1, This is the state of /dev/disk0 after a failed attempt to remove the disk0s4 partition. The partition has definitely decreased in size, but I want it gone entirely:
$ gpt -r show /dev/disk0
gpt show: /dev/disk0: Suspicious MBR at sector 0
size index contents
1 MBR
1 Pri GPT header
32 Pri GPT table
409600 1 GPT part - 11111111-1111-1111-1111-111111111111
291884360 2 GPT part - 22222222-2222-2222-2222-222222222222
1269536 3 GPT part - 33333333-3333-3333-3333-333333333333
880
16777216 4 MBR part 130
179893087
32 Sec GPT table
1 Sec GPT header
Update 2, after failure of diskutil cs resizeStack xxx 0g
diskutil corestorage resizeStack 265D8E12-2452-4D7F-BF56-2075FBA9773A 0g
265D8E12-2452-4D7F-BF56-2075FBA9773A does not appear to be a valid Core Storage Logical Volume UUID or disk
The output of diskutil cs list:
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group 265D8E12-2452-4D7F-BF56-2075FBA9773A
=========================================================
Name: Macintosh HD
Status: Online
Size: 149444792320 B (149.4 GB)
Free Space: 0 B (0 B)
|
+-< Physical Volume 8E81C240-7CE6-4688-A61C-66CFFBCF37F8
| ----------------------------------------------------
| Index: 0
| Disk: disk0s2
| Status: Online
| Size: 149444792320 B (149.4 GB)
|
+-> Logical Volume Family 09B78781-FCBC-4FFD-9430-2126A9FF24A1
----------------------------------------------------------
Encryption Status: Unlocked
Encryption Type: None
Conversion Status: NoConversion
Conversion Direction: -none-
Has Encrypted Extents: No
Fully Secure: No
Passphrase Required: No
|
+-> Logical Volume 2AB8ABA4-9A16-48C2-A085-D3FE3251E41F
---------------------------------------------------
Disk: disk1
Status: Online
Size (Total): 149082341376 B (149.1 GB)
Conversion Progress: -none-
Revertible: Yes (no decryption required)
LV Name: Macintosh HD
Volume Name: Macintosh HD
Content Hint: Apple_HFS
Sorry, I posted the wrong error, I also get:
diskutil corestorage resizeStack 2AB8ABA4-9A16-48C2-A085-D3FE3251E41F 0g
The Core Storage Logical Volume UUID is 2AB8ABA4-9A16-48C2-A085-D3FE3251E41F
Started CoreStorage operation
Error: -69722: You can't perform this resize unless it has a booter (target partition is probably too small)
As prompted by David Anderson, the output from sudo fdisk /dev/disk0 is:
Disk: /dev/disk0 geometry: 30515/255/63 [490234752 sectors]
Signature: 0xAA55
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
1: EE 0 0 1 - 1023 254 63 [ 1 - 409639] <Unknown ID>
*2: AF 1023 254 63 - 1023 254 63 [ 409640 - 291884360] HFS+
3: AF 1023 254 63 - 1023 254 63 [ 292294000 - 1269536] HFS+
4: 82 1023 254 63 - 1023 254 63 [ 293564416 - 16777216] Linux swap
Update, attempts to delete the deep partition from internet recovery mode.
Update: The current results of sudo got -r show /dev/disk0 and sudo fdisk /dev/disk0:
Peters-MBP:~ peter$ sudo gpt -r show /dev/disk0
Password:
gpt show: /dev/disk0: Suspicious MBR at sector 0
start size index contents
0 1 MBR
1 1 Pri GPT header
2 32 Pri GPT table
34 6
40 409600 1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
409640 291884360 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
292294000 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
293563536 880
293564416 16777216 4 MBR part 130
310341632 179893087
490234719 32 Sec GPT table
490234751 1 Sec GPT header
Peters-MBP:~ peter$ sudo fdisk /dev/disk0
Disk: /dev/disk0 geometry: 30515/255/63 [490234752 sectors]
Signature: 0xAA55
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
1: EE 0 0 1 - 1023 254 63 [ 1 - 409639] <Unknown ID>
*2: AF 1023 254 63 - 1023 254 63 [ 409640 - 291884360] HFS+
3: AF 1023 254 63 - 1023 254 63 [ 292294000 - 1269536] HFS+
4: 82 1023 254 63 - 1023 254 63 [ 293564416 - 16777216] Linux swap
Solution
Basically you have to delete the linux partitions (disk0s4 and disk0s5) and then expand your CoreStorage volume (Macintosh HD) to the full size.
- Boot to Internet Recovery Mode by pressing altcmdR while booting
- Open Terminal in the menubar -> Utilities
- enter
diskutil listanddiskutil cs listto get the partition and the CoreStorage listing. Now unmount all disks except the OS X Base System (~1.3 GB) and its accompanying volumes (eleven really small sized volumes). First the CoreStorage disk (probably disk2, check the size: ~149.1 GB!) and then the physical disk:
diskutil unmountdisk /dev/disk2 diskutil unmountdisk /dev/disk0- Enter
gpt -r show /dev/disk0to get the partition table Remove the two linux partitions (choose the proper index numbers of the two linux partitions):
gpt remove -i 5 /dev/disk0 gpt remove -i 4 /dev/disk0If the deletion of the Linux swap volume fails try to reformat it with
diskutil eraseVolume JHFS+ Blank /dev/disk0s4and continue with step 4.- Reenter
gpt -r show /dev/disk0to check if all Linux partitions are deleted Remount any previously unmounted volume in the reverse order with
diskutil mountdisk /dev/disk0 diskutil mount LVUUID #LVUUID=UUID of the logical volume found previouslyEnter
diskutil cs resizeStack LVUUID sizewith LVUUID: UUID of the logical volume (usually the last UUID found in thediskutil cs listlisting you got previously) and size: the final size of your CoreStorage volume.Example:
diskutil cs resizeStack 2AB8ABA4-9A16-48C2-A085-D3FE3251E41F 0gto expand it to the full available size (0g is a magic number here).
- Finally you might delete the GRUB loader if it was installed on disk0s1.
OTHER TIPS
Update 3
A simpler way, to accomplish the same results as Update 1, would be to use the following commands.
INPUT=$(printf "f 4\ne 4\n0\ne 3\n0\ne 2\n0\ne 1\nee\n\n1\n\nq\ny")
sudo fdisk -e /dev/disk2 <<<"$INPUT";echo
Update 2
Based on the current state of your MBR and GUID partition tables, I recommend the following steps to finish fixing your computer.
I do not think it is necessary to boot to Internet Recovery Mode before entering these commands.
Make a Time Machine or other form of backup. (Just in case.)
Execute my Update 1 on
/dev/disk0. Upon completion, the output ofsudo fdisk /dev/disk0should appear as shown below.Peters-MBP:~ peter$ sudo fdisk /dev/disk0 Disk: /dev/disk0 geometry: 30515/255/63 [490234752 sectors] Signature: 0xAA55 Starting Ending #: id cyl hd sec - cyl hd sec [ start - size] ------------------------------------------------------------------------ 1: EE 0 0 2 - 1023 254 63 [ 1 - 490234751] <Unknown ID> 2: 00 0 0 0 - 0 0 0 [ 0 - 0] unused 3: 00 0 0 0 - 0 0 0 [ 0 - 0] unused 4: 00 0 0 0 - 0 0 0 [ 0 - 0] unusedExecute the command given below.
diskutil cs resizeStack 2AB8ABA4-9A16-48C2-A085-D3FE3251E41F 0g
Update 1
For anyone's information, a hybrid GPT drive can be changed back to a normal GPT drive by using the fdisk command in interactive mode. The interactive commands are universal. These commands are as follows.
f 4
e 4
0
e 3
0
e 2
0
e 1
ee
n
1
[number of blocks] #You just have to hit the enter key to choose the given default
q
y
For example, say I have a flash drive on /dev/disk2 and the output of sudo fdisk /dev/disk2 was the following.
Steelhead:~ davidanderson$ sudo fdisk /dev/disk2
Password:
Disk: /dev/disk2 geometry: 978/128/63 [7892087 sectors]
Signature: 0xAA55
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
1: EE 1023 254 63 - 1023 254 63 [ 1 - 409639] <Unknown ID>
2: AC 1023 254 63 - 1023 254 63 [ 409640 - 6915528] <Unknown ID>
3: AB 1023 254 63 - 1023 254 63 [ 7325168 - 262144] Darwin Boot
*4: 0B 1023 254 63 - 1023 254 63 [ 7587840 - 303104] Win95 FAT-32
Entering the command sudo fdisk -e /dev/disk2 followed by the above interactive commands would result in the following output.
Steelhead:~ davidanderson$ sudo fdisk -e /dev/disk2
fdisk: could not open MBR file /usr/standalone/i386/boot0: No such file or directory
Enter 'help' for information
fdisk: 1> f 4
Partition 4 marked active.
fdisk: 1> e 4
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
*4: 0B 1023 254 63 - 1023 254 63 [ 7587840 - 303104] Win95 FAT-32
Partition id ('0' to disable) [0 - FF]: [B] (? for help) 0
Partition 4 is disabled.
fdisk:*1> e 3
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
3: AB 1023 254 63 - 1023 254 63 [ 7325168 - 262144] Darwin Boot
Partition id ('0' to disable) [0 - FF]: [AB] (? for help) 0
Partition 3 is disabled.
fdisk:*1> e 2
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
2: AC 1023 254 63 - 1023 254 63 [ 409640 - 6915528] <Unknown ID>
Partition id ('0' to disable) [0 - FF]: [AC] (? for help) 0
Partition 2 is disabled.
fdisk:*1> e 1
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
1: EE 1023 254 63 - 1023 254 63 [ 1 - 409639] <Unknown ID>
Partition id ('0' to disable) [0 - FF]: [EE] (? for help) ee
Do you wish to edit in CHS mode? [n]
Partition offset [0 - 7892087]: [63] 1
Partition size [1 - 7892086]: [7892086]
fdisk:*1> q
Writing current MBR to disk.
Device could not be accessed exclusively.
A reboot will be needed for changes to take effect. OK? [n] y
Steelhead:~ davidanderson$
Now when entering 'sudo fdisk /dev/disk2' the result is
Steelhead:~ davidanderson$ sudo fdisk /dev/disk2
Password:
Disk: /dev/disk2 geometry: 978/128/63 [7892087 sectors]
Signature: 0xAA55
Starting Ending
#: id cyl hd sec - cyl hd sec [ start - size]
------------------------------------------------------------------------
1: EE 0 0 2 - 1023 254 63 [ 1 - 7892086] <Unknown ID>
2: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
3: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
4: 00 0 0 0 - 0 0 0 [ 0 - 0] unused
I do recognize the UEFI specification requires the Ending hd entry for partition 1 to be a value of 255. In the table above, the value is 254. In the case of OS X, I do not think this discrepancy matters.
Original Answer:
I tested my answer using a flash drive. This is not the same a core storage on disk0. Even though klanomath's answer seems more complex than mine, he does have far more experience with core storage than I have. I would not hesitate to use his answer over mine.
The EFI partition (disk0s1) existed before you installed Ubuntu. The installation of Ubuntu probably added the GRUB boot loader to this partition. You could mount this partition (using the Disk Utility application) and delete EFI/ubuntu folder containing these files, but it would be easier to just leave them where they are.
To remove Ubuntu, you do need to delete disk0s4 and disk0s5. You should be able to do this from the Disk Utility application. Remove disk0s4 first, followed by disk0s5. Both operations may take quite a long time to complete. Be patient.
