Apple Event: May 7th at 7 am PT

> Learn more

> Add to your calendar 

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

User profile for user: snavdeep
snavdeep Author
User level: Level 1
14 points

partition map check failed because no slices were found

Hi,


I own an early 2011 MacBook Pro running Mac OS X Mavericks. Recently, I tried to make 50 GB partition using Disk Utility but the whole process didn't complete, and Ih ad to restart the system as it hanged (Even Force wasn't working). Upon reboot, I saw that I was missing 50GB space. When I tried to

verify the disk, it showed me the following error:


"Partition map check failed because no slices were found."


Can I fix my drive without using external drive? Please help.

MacBook Pro, OS X Mavericks (10.9), Early 2011

Posted on Jan 28, 2014 8:58 AM

Reply
Question marked as Best reply
User profile for user: Castro Lopes
Castro Lopes
User level: Level 1
0 points

Posted on Jul 15, 2015 5:19 AM

Hi Melophage

I have a problem similar to snavdeep's but in my case I bought a new internal hdd for my macbook pro 13" and formatted it on windows because when I tried to boot the mac with it I got a flashing icon of a file with a question mark inside right after starting the computer. Well, I did format it on my windows PC and now it shows up at mac's disk utility as a unmounted drive that I can't mount and it shows that it is a "Microsoft Reserved" partition and also that it is "Read Only" and no S.M.A.R.T.

I wrote the line commands you told snavdeep to write and it gave me back this result:

diskutil listLast login: Tue Jul 14 16:44:13 on console


MacBook-Pro-de-Ricardo:~ CASTROLOPES$ diskutil list

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk1

1: Apple_HFS 134.2 MB disk1s1

2: Apple_HFS HD-TEMPORÁRIO 998.6 GB disk1s2

3: Apple_Boot Recovery HD 650.0 MB disk1s3

/dev/disk2

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *3.0 TB disk2

1: EFI EFI 209.7 MB disk2s1

2: Apple_HFS Backups do Time Machine 3.0 TB disk2s2

MacBook-Pro-de-Ricardo:~ CASTROLOPES$ diskutil cs list

No CoreStorage logical volume groups found

MacBook-Pro-de-Ricardo:~ CASTROLOPES$ mount

/dev/disk1s2 on / (hfs, local, journaled)

devfs on /dev (devfs, local, nobrowse)

localhost:/2j0zX-MGAtn7dycbjs1HnN on /Volumes/MobileBackups (mtmfs, nosuid, read-only, nobrowse)

map -hosts on /net (autofs, nosuid, automounted, nobrowse)

map auto_home on /home (autofs, automounted, nobrowse)

//Ricardo%20A%20C%20Lopes@AirPort%20Time%20Capsule%20de%20Liliana%20Ducatti._afp overtcp._tcp.local/Data on /Volumes/Data (afpfs, nobrowse)

/dev/disk2s2 on /Volumes/Backups do Time Machine (hfs, local, nodev, nosuid, journaled, nobrowse)

MacBook-Pro-de-Ricardo:~ CASTROLOPES$


What should I do? Thanks in advance!


Ricardo

View in context
37 replies
User profile for user: iMaki
iMaki
User level: Level 1
0 points

Oct 21, 2014 8:56 PM in response to snavdeep

Same problem after installing Yosemite. Seagate GoFlex Desk external drive:


iMac:~ bmaki$ diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_HFS Macintosh HD 999.3 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *3.0 TB disk1

1: Apple_HFS FreeAgent GoFlex Drive 3.0 TB disk1s1

iMac:~ bmaki$ diskutil cs disk

diskutil: did not recognize coreStorage verb "disk"; type "diskutil coreStorage" for a list

iMac:~ bmaki$ mount

/dev/disk0s2 on / (hfs, local, journaled)

devfs on /dev (devfs, local, nobrowse)

map -hosts on /net (autofs, nosuid, automounted, nobrowse)

map auto_home on /home (autofs, automounted, nobrowse)


Please help!

Reply
User profile for user: MyPassportforMac
MyPassportforMac
User level: Level 1
0 points

Nov 18, 2014 8:33 PM in response to Melophage

Melophage,


I had the same problem as chrisfromburkburnett, but unfortunately the steps you described did not work for me. Even after ejecting the disk I still get Error: Partition map check failed because no slices were found.


Do you have any suggestions? It's a 3T external USB HD.


Thanks.


Here is the output:


Tysons-MacBook-Pro:~ tyson$ diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *251.0 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_HFS Macintosh HD 250.1 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: Apple_partition_scheme *16.0 MB disk1

1: Apple_partition_map 32.3 KB disk1s1

2: Apple_HFS Flash Player 16.0 MB disk1s2

/dev/disk2

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *2.0 TB disk2

1: Microsoft Reserved 134.2 MB disk2s1

Tysons-MacBook-Pro:~ tyson$ diskutil cs list

No CoreStorage logical volume groups found

Tysons-MacBook-Pro:~ tyson$ mount

/dev/disk0s2 on / (hfs, local, journaled)

devfs on /dev (devfs, local, nobrowse)

map -hosts on /net (autofs, nosuid, automounted, nobrowse)

map auto_home on /home (autofs, automounted, nobrowse)

Tysons-MacBook-Pro:~ tyson$ diskutil info disk2

Device Identifier: disk2

Device Node: /dev/disk2

Part of Whole: disk2

Device / Media Name: WD My Passport 0748 Media


Volume Name: Not applicable (no file system)


Mounted: Not applicable (no file system)


File System: None


Content (IOContent): GUID_partition_scheme

OS Can Be Installed: No

Media Type: Generic

Protocol: USB

SMART Status: Not Supported


Total Size: 2.0 TB (2000365289472 Bytes) (exactly 3906963456 512-Byte-Units)

Volume Free Space: Not applicable (no file system)

Device Block Size: 512 Bytes


Read-Only Media: No

Read-Only Volume: Not applicable (no file system)

Ejectable: Yes


Whole: Yes

Internal: No

OS 9 Drivers: No

Low Level Format: Not supported


Tysons-MacBook-Pro:~ tyson$ sudo gpt show disk2


WARNING: Improper use of the sudo command could lead to data loss

or the deletion of important system files. Please double-check your

typing when using sudo. Type "man sudo" for more information.


To proceed, enter your password, or type Ctrl-C to abort.


Password:

start size index contents

0 1 PMBR

1 1 Pri GPT header

2 32 Pri GPT table

34 262144 1 GPT part - E3C9E316-0B5C-4DB8-817D-F92DF00215AE

262178 3906701245

3906963423 32 Sec GPT table

3906963455 1 Sec GPT header

Tysons-MacBook-Pro:~ tyson$

Reply
User profile for user: RodolfoPaez
RodolfoPaez
User level: Level 1
0 points

Nov 26, 2014 9:14 AM in response to MyPassportforMac

Hi I have a similar problem using Yosemith.

Have a WD 3.0 Tb hard drive working ok, and next day give me:


in disk utility

Verifying and repairing partition map for “WDC WD30 EZRX-00DC0B0 Media”

Checking prerequisites

Checking the partition list

Problems were encountered during repair of the partition map

Error: Partition map check failed because no slices were found.


And now only recognize 2,2 Tb.


I check with Data Rescue 3 and all my information is there, How can I make it mount again


Did the :

diskutil list

diskutil cs list

mount

And this are my results:

Last login: Wed Nov 26 11:07:38 on console

TheMackay:~ rp20$ diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_HFS Macintosh HD 999.3 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk1

1: EFI EFI 209.7 MB disk1s1

2: Apple_HFS Respaldo 999.9 GB disk1s2

/dev/disk2

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk2

1: EFI EFI 209.7 MB disk2s1

2: Apple_HFS 1 Tera 999.9 GB disk2s2

/dev/disk3

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *999.5 GB disk3

1: EFI EFI 209.7 MB disk3s1

2: Apple_HFS 1 Tera II 998.6 GB disk3s2

3: Apple_Boot Recovery HD 650.0 MB disk3s3

/dev/disk4

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *2.2 TB disk4

1: EFI EFI 209.7 MB disk4s1

/dev/disk5

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *2.0 TB disk5

1: EFI EFI 209.7 MB disk5s1

2: Apple_HFS Storage 2 (2t) 2.0 TB disk5s2

TheMackay:~ rp20$ diskutil cs list

No CoreStorage logical volume groups found

TheMackay:~ rp20$ mount

/dev/disk0s2 on / (hfs, local, journaled)

devfs on /dev (devfs, local, nobrowse)

map -hosts on /net (autofs, nosuid, automounted, nobrowse)

map auto_home on /home (autofs, automounted, nobrowse)

/dev/disk3s2 on /Volumes/1 Tera II 1 (hfs, local, nodev, nosuid, journaled, noowners)

/dev/disk2s2 on /Volumes/1 Tera (hfs, local, nodev, nosuid, journaled, noowners)

/dev/disk5s2 on /Volumes/Storage 2 (2t) 1 (hfs, local, nodev, nosuid, journaled, noowners)

TheMackay:~ rp20$



PLEAE HELP: !!!


🙂

Reply
User profile for user: RodolfoPaez
RodolfoPaez
User level: Level 1
0 points

Nov 26, 2014 9:39 AM in response to RodolfoPaez

DID the comand


diskutil info disk4:



Device Identifier: disk4

Device Node: /dev/disk4

Part of Whole: disk4

Device / Media Name: WDC WD30 EZRX-00DC0B0 Media


Volume Name: Not applicable (no file system)


Mounted: Not applicable (no file system)


File System: None


Content (IOContent): GUID_partition_scheme

OS Can Be Installed: No

Media Type: Generic

Protocol: USB

SMART Status: Not Supported


Total Size: 2.2 TB (2199023255040 Bytes) (exactly 4294967295 512-Byte-Units)

Volume Free Space: Not applicable (no file system)

Device Block Size: 512 Bytes


Read-Only Media: No

Read-Only Volume: Not applicable (no file system)

Ejectable: Yes


Whole: Yes

Internal: No

OS 9 Drivers: No

Low Level Format: Not supported

Reply
User profile for user: cuedimple
cuedimple
User level: Level 1
12 points

Sep 4, 2016 12:40 AM in response to Melophage

Last login: Sun Sep 4 08:23:13 on ttys000

Adeola:~ quadri$ diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *121.3 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_CoreStorage 120.5 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Macintosh HD *120.2 GB disk1

Logical Volume on disk0s2

8B0CD6DC-6505-4119-B259-CD7BFEFB986D

Unlocked Encrypted

/dev/disk2

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk2

1: EFI EFI 209.7 MB disk2s1

Adeola:~ quadri$ diskutil cslist

diskutil: did not recognize verb "cslist"; type "diskutil" for a list

Adeola:~ quadri$ diskutil cs list

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group 8860B45E-68F4-4DF2-9316-312A794ABAE9

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

Name: Macintosh HD

Status: Online

Size: 120473067520 B (120.5 GB)

Free Space: 0 B (0 B)

|

+-< Physical Volume 4223F017-CE58-4F5B-9AED-52E13D37C7F7

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

| Index: 0

| Disk: disk0s2

| Status: Online

| Size: 120473067520 B (120.5 GB)

|

+-> Logical Volume Family 81DA0585-DEFF-480C-B429-03A1EB638F71

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

Encryption Status: Unlocked

Encryption Type: AES-XTS

Conversion Status: Complete

Conversion Direction: -none-

Has Encrypted Extents: Yes

Fully Secure: Yes

Passphrase Required: Yes

|

+-> Logical Volume 8B0CD6DC-6505-4119-B259-CD7BFEFB986D

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

Disk: disk1

Status: Online

Size (Total): 120154226688 B (120.2 GB)

Conversion Progress: -none-

Revertible: Yes (unlock and decryption required)

LV Name: Macintosh HD

Volume Name: Macintosh HD

Content Hint: Apple_HFS

Adeola:~ quadri$ mount

/dev/disk1 on / (hfs, local, journaled)

devfs on /dev (devfs, local, nobrowse)

map -hosts on /net (autofs, nosuid, automounted, nobrowse)

map auto_home on /home (autofs, automounted, nobrowse)

Adeola:~ quadri$

Reply

partition map check failed because no slices were found

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.
Learn more Sign up