Partition map needs to be repaired - what next?

My iMac Intel ( running Maverick ) has for some time problems starting up - takes for ever and works very slow. When I started from the start up manager to use disk utility I've received following messages.
Live file system repair is not supported
The partition map needs to be repaired because there's a problem with EFI system partition's file system.
What can I do.

Have you tried to run the verify/repair permissions and verify/repair disk through the recovery disk? If that didn't work then I would reinstall the OS after backing up. If that still doesn't work I would take it in.

Similar Messages

MacBookPro SSD Error- ALERT: The partition map needs to be repaired because there's a problem with the EFI system partition's file system.

MacBook Pro OS x Mavericks. I have Sandisk 256GB SSD and I am getting a below error message.
ALERT: The partition map needs to be repaired because there's a problem with the EFI system partition's file system.
Does anyone know how to resolve this error and fix it ? unfortunately I don't have a Time Machine backup. Thanks!

Have you tried to run the verify/repair permissions and verify/repair disk through the recovery disk? If that didn't work then I would reinstall the OS after backing up. If that still doesn't work I would take it in.

Disk Utility - Partition map needs repair because a data partition needs loader space.

I just finished setting up both my OSX and Windows installs from scratch after fitting an SSD, which in-turn was right before my logic board died and Apple replaced it, now it looks like I have some sort of hard drive issue brewing.
This was my plan for the SSD, and how it currently displays in Disk Utility although that wasn't the case earlier:
And in Terminal:
My intention was to have two boot partitions for each OS, 'Macintosh HD' and 'Win 7 Pro' and a third shared data partition 'Projects' on the SSD, which I made in Drive Genius after installing Boot Camp. I don't want Macintosh HD accessible from Windows because I'll be using Paragon HFS+ or MacDrive to give write access and don't want OSs stomping on other OSs turf, hence needing three partitions. Everything looked fine until I just checked Disk Management under windows and realised it couldn't see the Projects volume. Even though it's fine in OS X, it was just marked black/unallocated space.
So I booted back into OSX, all my files look fine so I ran Disk Utility and the Partition tab looked really odd - unfortunately I didn't get a screenshot. All volumes reported their size correctly but visually, Macintosh HD took up most of the drive. I could see 'Windows 7 Pro' under this, but the Partition Layout section had a scrollbar, which if I scrolled down showed 'Projects' squished into a tiny gap at the bottom. I ran a Verify, which reported no problems, and at some time since the Partition Layout has reverted to how it should look (as in the screenshot above), with 'Projects' book-ended by "Macintosh HD' and 'Windows 7 Pro'.
Now when I run a Verify on Macintosh HD or Projects volumes, it says there's no problem, but if I run one on the drive, I get this message:
Volume Macintosh HD on disk0s2 has 0 bytes of trailing loader space and it needs 134217728 bytes
Problems were found with the partition map which might prevent booting
Error: Partition map needs repair because a data partition needs loader space.
I've only managed to find one other mention of this error here, but the fix is not relevant to me because I don't have Sophos installed. I've tried Single User/Safe Mode but it just boots into normal mode, so I can't do a fsck -fy.
** /dev/rdisk0s2 (NO WRITE)
Can't open /dev/rdisk0s2: Permission denied
That value in bytes is exactly 128mb, so I suspect the problem lies with one of the invisible partitions that show up in iPartition and Disk Management under Windows, but not in Disk Utility. I have backups and I suspect the root of the problem is partitioning in iPartition after installing Boot Camp, but I've never had issues with this approach in the past so I'm wary of just giving up and reinstalling Windows again will be massive hassle because I no longer have a SuperDrive and last time it refused to install from USB.
Anyone have any idea what's going on? It seems like the sort of issue Disk Utility should just handle, at least in Recovery mode, but it's not playing ball. It also doesn't seem like a massive problem since my files all look fine and performance is OK, so I'm reluctant to do anything major.
I'll update with a shot of the drive in Disk Management from Windows in a few minutes, in case that sheds light on anything. Thanks!

Similar issue here. I manually partitioned my hard disk for triple boot (using Gparted on Linux), then everything was just fine until I ran bootcamp, to do something as simple as create a boot USB.
I get the same error as a result and have to work my way into booting, by resorting first to a Linux live USB, then restarting from the live USB, to finally reach my rEFInd boot manager, or whichever boot manager should be initialized at startup.
I suppose that the cause in my case is that some operation "scratched" the protective MBR. See this:
http://www.mactech.com/articles/mactech/Vol.23/23.03/APMtoGPT/index.html
I am hoping to fix it using an external Yosemite installation media: see this guide -
http://www.macworld.com/article/2367748/how-to-make-a-bootable-os-x-10-10-yosemi te-install-drive.html
And as a last resort to reinstall.
I'll admit I am negatively surprised. I need this computer for professional reasons, and for the sake of "preserving the integrity of OSX", measures defined by Apple instead tend to make partitions far easier to damage. And this problem seems to affect a number of users.
As for what I have to go through to fix it: a 5GB download, during which I have to register my credit card to the Apple Store. "Pay first, get your free software next."
IF Disk Utility can fix it, from the external media, then fair enough. The hassle is unpleasant but it files as "a choice".
Otherwise you can file it safely under software design calamity.

IMac needs to be repaired - what would you recommend ?

Ive need to take my 10 Month old iMac into the Apple shop where I bought it from for a repair , ( screen problem ) Ive never had to take my Mac in for repair before so I really don't know what to do in the way of '' preparing '' it to be looked at by the technicians , I really would not like some one to play around with say my photo collection, Etc ( I have a full system backup on an external HDD ) , what would recommend I do to '' prepare '' the iMac ?

Hi Graham, yes I am up here in the land of the Red dust , where a Mac is thought of as a beef burger , Leopard is a big cat, and mounting is some thing else.
I think I know exactly where you are.
+Its good to hear that the Maccenter is reliable , a phrase not commonly used in the Thai language+ ,
The build up that has occurred with Apple here over the last couple of years has been fairly good and the way the iStudio/iBeat franchises are run is pretty good in the main. Maccenter has been the responsible agent for warranty work for a number of years: they do not repair, but test and replace.
+but I assure you I will have my fingers firmly crossed and of course an old rolled up copy of the Bangkok Post on stand by to firmly thump the iBeat managers desk , should It become necessary.+
Well, you will know how shouting here is best accomplished only at the really correct time. And as for the Post, open it (or at least the Database section). <g>

Another flashing question mark - tried repair, what next?

Hi, my macbook is 7 months old and i bought and installed Leopard last week. It has been acting a little buggy and slow, and today froze, and when i tried to restart I had all those really loud clicking, whirring noises from the right-hand palm rest that i assume is the hard drive dying on me - then the flashing grey folder. So i inserted the disk and tried to repair from Disk Utility. The HDD says 111.8 GB Hitachi H....etc, and under that is disk1s2. So i clicked on Hitachi and tried to repair but it says in red
"Invalid B-tree node size
Volume check failed
Error: filesystem verify or repair failed."
Is there anything i can do? keep trying to repair? Disk utility says that if the repair fails I back up and erase the disk - how can I do this? thank you.

Hi arnna,
Something to keep in mind whenever your Mac is acting "buggy and slow".. is available drive space.
Launch Disk Utility from the Applications/Utilities menu or from your restore disk. Select MacintoshHD in the panel on the left then look at the bottom of the window where it says: Capacity and Available. If the Available drive space is less then 20% of the Capacity... that's not good. A Mac needs anywhere from 15% - 20% free space just to boot.
DiskWarrior is a great disk repair utility available here; www.alsoft.com
Carolyn

Problems were encountered during repair of the partition map.

I had too much time on my hands yesterday and I decided to try to remove an unused kernel extension that I saw in my EtreCheck report. The kext was for the PACE iLok, for Pro Tools, which I no longer use. I found the item that was installing the kext and removed it, and EtreCheck reported that the kext was gone.
Some time after that I was troubleshooting another issue I have with Mavericks (shutdown time: my shutdown time with ML was almost instantaneous; with Mavericks, it takes about 12 seconds.), and I used the recovery partition and Disk Utility to repair my HD and permissions.
DU reported that my usual boot volume was OK, and permissions repaired on it without problems.
When I have DU look at the drive itself, it reported: Problems were encountered during repair of the partition map.
And then, in ominous red text: error: live file system repair is not supported.
I tried repairing again, and also got this message: The partition map needs to be repaired because there's a problem with the EFI system partition 's file system.
I tried a few things to get these error messages to go away. I booted with a DiskWarrior disk and it was unable to do the repair.
I did a little reading about the EFI partition, and in Macs it appears to be a partition related to firmware updates.
My mac has not had any symptoms at all during this, aside from the slower shutdown.
Even so, I did not like the idea of a partition that could not be repaired on my HD, so I did a clean install. Seemed to work, DU reported a healthy drive and volume.
This morning, as I was preparing for a TM backup, I ran DU again, and the error messages were back. Not good.
This time I tried TechTool, and it was able to repair the HD from the TechTool eDrive (TechTool's version of the recovery partition).
I've looked in these discussions and there are some mentions of these error messages, but usually in the context of failing hard drives or drives that must be erased and the OS reinstalled.
I'm wondering if anyone can shed some light on this for me, what these error messages mean, why they are occurring, and if I can just ignore them. My internal HD is not a stock Apple drive, but a Samsung SSD that I installed some time ago, and which otherwise works fine. My current suspicions are that either:
there is something inherent in Mavericks that creates some problem with the EFI partition map over time, which then shows up in the error messages in DU
or there is some incompatibility with this SSD and Mavericks that creates the same error messages.
Here's my EtreCheck report:
Hardware Information:
          MacBook Pro (15-inch, Early 2011)
          MacBook Pro - model: MacBookPro8,2
          1 2 GHz Intel Core i7 CPU: 4 cores
          8 GB RAM
Video Information:
          Intel HD Graphics 3000 - VRAM: 512 MB
          AMD Radeon HD 6490M - VRAM: 256 MB
Audio Plug-ins:
          BluetoothAudioPlugIn: Version: 1.0
          AirPlay: Version: 1.9
          AppleAVBAudio: Version: 2.0.0
          iSightAudio: Version: 7.7.3
System Software:
          OS X 10.9 (13A603) - Uptime: 0 days 0:51:29
Disk Information:
          Samsung SSD 840 PRO Series disk0 : (512.11 GB)
                    EFI (disk0s1) <not mounted>: 209.7 MB
                    Untitled (disk0s2) /: 499.12 GB (418.57 GB free)
                    Recovery HD (disk0s3) <not mounted>: 650 MB
                    eDrive (disk0s4) /Volumes/eDrive: 12 GB (4.65 GB free)
          HL-DT-ST DVDRW GS31N
USB Information:
          MICRONET FANTOM DRIVE     1 TB
                    EFI (disk1s1) <not mounted>: 209.7 MB
                    Fantom (disk1s2) /Volumes/Fantom: 999.86 GB (941.3 GB free)
          Apple Computer, Inc. IR Receiver
          Apple Inc. FaceTime HD Camera (Built-in)
          Apple Inc. Apple Internal Keyboard / Trackpad
          Apple Inc. BRCM2070 Hub
                    Apple Inc. Bluetooth USB Host Controller
FireWire Information:
Thunderbolt Information:
          Apple Inc. thunderbolt_bus
Kernel Extensions:
          at.obdev.nke.LittleSnitch          (4052)
Problem System Launch Daemons:
Problem System Launch Agents:
Launch Daemons:
          [loaded] at.obdev.littlesnitchd.plist
          [loaded] com.adobe.fpsaud.plist
          [loaded] com.raynersw.nshctldo.plist
          [loaded] org.cindori.AuthHelper.plist
Launch Agents:
          [loaded] at.obdev.LittleSnitchUIAgent.plist
User Launch Agents:
User Login Items:
          iTunesHelper
          Dropbox
3rd Party Preference Panes:
          Flash Player
Internet Plug-ins:
          Default Browser.plugin
          Flash Player.plugin
          FlashPlayer-10.6.plugin
          QuickTime Plugin.plugin
User Internet Plug-ins:
Bad Fonts:
          None
Time Machine:
          Auto backup: YES
          Volumes being backed up:
                    Untitled: Disk size: 499.12 GB Disk used: 80.55 GB
          Destinations:
                    Fantom [Local] (Last used)
                    Total size: Zero KB
                    Total number of backups: (null)
                    Size of backup disk: Too small
                              Backup size Zero KB < (Disk used 80.55 GB X 3)
Top Processes by CPU:
              13%          WindowServer
               2%          hidd
               2%          EtreCheck
               2%          backupd
               1%          com.apple.prefs.backup.remoteservice
               1%          fontd
               1%          com.apple.WebKit.Networking
               0%          Safari
               0%          cookied
               0%          coreservicesd
Top Processes by Memory:
          131 MB             backupd
          131 MB             Safari
          115 MB             com.apple.IconServicesAgent
          74 MB              Dropbox
          66 MB              WindowServer
          56 MB              com.apple.WebKit.WebContent
          49 MB              TechTool Pro 7
          49 MB              Messages
          41 MB              App Store
          41 MB              mds
Virtual Memory Statistics:
          4.65 GB            Free RAM
          1.84 GB            Active RAM
          370 MB             Inactive RAM
          1.13 GB            Wired RAM
          415 MB             Page-ins
          0 B                Page-outs
thanks

this is the list it gives, hope it helps
Verifying and repairing partition map for “ST9160314ASG Media”
Checking prerequisites
Checking the partition list
Checking for an EFI system partition
Checking the EFI system partition’s size
Checking the EFI system partition’s file system
Checking all HFS data partition loader spaces
Reviewing boot support loaders
Checking Core Storage Physical Volume partitions
Checking storage system
Problems were encountered during repair of the partition map
Error: Storage system verify or repair failed.

Startup disk partition map repair difficulties

Disk Utility is reporting that "The partition map needs to be repaired because there's a problem with the EFI system partition's file system." However, after booting into the Recovery HD and attempting to repair this, I keep getting the error, "Live file system repair is not supported." And yet I can verify that I am definitely not booting from the startup disk so I don't know why or how this is happening. Any ideas on next steps short of backing up, reformatting and wiping the drive?
Thanks in advance for any guidance!

Hi Richard,
If you are having issues resolving a disk issue when booted to the Recovery partition on the internal hard drive, especially issues regarding partitions themselves, you may want to try creating a Recovery System on an external volume, as outlined in the following article:
OS X: About Recovery Disk Assistant
Regards,
- Brenden

WD Elements partition map EFI problem

Hi All,
I am trying to format a 3TB WD Elements (USB 2) external HD, GUID, 1 Partition Mac Extended Journaled. The formatting goes ok.
If I click on the "3TB WD Ext HDD 1021 Media" on the left in Disk Utility and hit "verify disk", I get the following error message:
"the partition map needs to be repaired because there's a problem with the EFI system partition's file system"
A 'repair disk' goes through without hitch, but if I hit 'verify disk' again, I get the same error.
I wonder if I can just disregard this or if I will encounter problems somewhere down the line.
Thank you very much for your help.
(Verify of the actual partition does not yield any problems)

I just bought a Seagate 3TB USB Expansion External HD and have exactly the same problem when verifying the disk.
"The partition map needs to be repaired because there’s a problem with the EFI system partition’s file system.”
It repairs ‘ok’ but get the same error message when verifying again.
As this thread has been running for 4 months or so and its still a problem!.... Has anyone had problems using their ‘drives’ while ignoring the error message?
I feel very uneasy trusting the drive as a reliable backup and I'm surprised that Apple hasn't sorted this potentially serious issue out with a 'fix'.... Most especially as it appears to be a fault with 'Lion' rather than the various brands of 3TB external drives?

I have Mac mini and there is partition of boot camp but some miss understanding the osx 10.8.2 is deleted and while I m going to recovery mode the portition can not removing and the also cant repaired what I do I need urgent help ???? Please ?????

I have Mac mini and there is partition of boot camp but some miss understanding the osx 10.8.2 is deleted and while I m going to recovery mode the portition can not removing and the also cant repaired what I do I need urgent help ???? Please ?????

Do you have a Time Machine backup or clone? If not,
all is lost if you have in fact deleted your OSX partition
and you will have to do a reinstall from Recovery HD
and install all else.

Since yesterday all my usual .xls files will not open (Office for Mac 2011). Can open .xlxs files. Default 'open with' is Microsoft Excel.app. No software updates done. Have repaired disc permissions. What next?

Since yesterday all my usual .xls files will not open (Office for Mac 2011). CAN open .xlxs files. Default 'open with' is Microsoft Excel.app. No software updates done yesterday or the day before (or maybe a Silverlight or an Acrobat one by accident?). Have repaired disc permissions. HHD name is still same as it always was. What next? Thanks
PS I'm not a great techie so assume I don't know what you're talking about!

You may need to rebuild permissions on your user account. To do this,boot to your Recovery partition (holding down the Command and R keys while booting) and open Terminal from the Utilities menu. In Terminal, type: ‘resetpassword’ (without the ’s), hit return, and select the admin user. You are not going to reset your password. Click on the icon for your Macs hard drive at the top. From the drop down below it select the user account which is having issues. At the bottom of the window, you'll see an area labeled Restore Home Directory Permissions and ACLs. Click the reset button there. The process takes a few minutes. When complete, restart.
Repair User Permissions

Disk utility gives "Error: Partition map repair failed while adjusting structures to fit current whole disk size"

I am getting the following error when running Disk Utility (under ML) on an exteral USB hard drive:
Error: Partition map repair failed while adjusting structures to fit current whole disk size.
I get thsi when I ask Disk Utility to "Repair Disk" at the top level of the disk hierarchy (i.e. not on one of the partitions within the disk but on the disk itself). I was not getting this error with Lion on the same disk before I upgraded from Lion to ML.
It seems like a bug in ML. I found websites where they suggest that you just run Lion's Disk Utility and it will show the disk to be fine.
Any thoughts?

So, I finally seemed to have resolved things with the Seagate 4TB Firewire external drive. If you Google about, you will find a thread on Seagate's own support forum that describes how to disable the sleep function on the drive. You CANNOT ALLOW THE DRIVE TO SLEEP WHILE CONNECTED TO YOUR MAC.
After a lot of reading, here's what I think is happening: the drive goes to sleep, after some period of inactivity, and when you shutdown your Mac, OS X tries to write something to the drive as part of the dismount / disconnect / shutdown process. That fails in some manner, leaving the drive 'corrupted' at the filesystem or partition level.
Then, on the next boot-up, Mountain Lion tells you that it cannot repair the drive and it mounts as read only. Your only fix at that point is to re-partition / re-format and start over (which is big fun with 3TB of data to copy back on to the drive).
If you prevent the drive from sleeping, whenever it's connected to the MacBook, then the above process doesn't occur and voila, the drive just works. So far, I haven't had any problems with about a week of starting / shutting down my MacBook connected to the offending drive (translation: I was going to return the drive, but the problem is clearly with Mac OS X Mountain Lion).

External Hard Disc won't mount - Partition Map error. Can't repair with Disk Utility

Happy New Year all and thanks in advance for any support/advise.
I have some important data on an external drive that does not seem to want to mount. The drive is a 500 GB Seagate connected via USB. I am currently on an iMac 3.06 GHz Intel Core 2 Duo running Yosemity 10.10.1
What I've tried:
Multiple computers - connected the drive to various apple computers with the same result.
New enclosure: I have removed the actual HD from the enclosure and connected it using a new one.
Disk Utility: Verifying Disc reports the following error: 'Error: Partition map check failed because no slices were found.' Screenshot below:
I have searched this and other forums and run a few commands in Terminal that seem relevant to the issue, but am out of my depth in terms of interpreting the results. Thank again for your attention!!!
Commands run in Terminal:
diskutil list
diskutil cs list
mount
diskutil info disk1
Full Results pasted below:
diskutil list...
Ethan-Smiths-iMac:~ Ethan$ 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                        *500.1 GB   disk1
   1:         Microsoft Reserved                         134.2 MB   disk1s1
diskutil cs list...
Ethan-Smiths-iMac:~ Ethan$ diskutil cs list
No CoreStorage logical volume groups found
mount...
Ethan-Smiths-iMac:~ Ethan$ 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)
diskutil info disk1...
Ethan-Smiths-iMac:~ Ethan$ diskutil info disk1
   Device Identifier:        disk1
   Device Node:              /dev/disk1
   Part of Whole:            disk1
   Device / Media Name:      ST950032 5AS 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:               500.1 GB (500107862016 Bytes) (exactly 976773168 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

Select the disk1s1 volume under the main drive entry, then click on the Mount icon in the Disk Utility toolbar if it goes active and see if a volume then mounts on your Desktop. If it does not, then you need to reformat the drive. And, you cannot access the volume in order to copy your data somewhere else. If you are willing to spend money on the problem, then you can always try using a software recovery utility:
General File Recovery
If you stop using the drive it's possible to recover deleted files that have not been overwritten by using recovery software such as MAC Data Recovery, Data Rescue II, File Salvage or TechTool Pro. Each of the preceding come on bootable CDs to enable usage without risk of writing more data to the hard drive. Two free alternatives are Disk Drill and TestDisk. Look for them and demos at MacUpdate or CNET Downloads. Recovery software usually provide trial versions that enable you to determine if the software would help before actually paying for it. Beyond this or if the drive has completely failed, then you would need to send the drive to a recovery service which is very expensive.
The longer the hard drive remains in use and data are written to it, the greater the risk your deleted files will be overwritten.
Also visit The XLab FAQs and read the FAQ on Data Recovery.

Unable to repair disk (Partition map) Please HELP !

Hi,
I have the weirdest problem with my 15" retina macbook pro.
Earlier today, OS X automatically rebooted after some kind of bug. I was then unable to start the computer, wether it was through recovery or as usual.
Started in Safe mode, Backed up with time machine, and restored system.
I'm now able to boot as usual but when I launch Disk Utility, I detects an error. Please find DU log at end of this message.
When I click Repair Disk, I continuously get the same error message (this disk needs to be repaired).
Any ideas how I can get this error fixed ?
Thanks so much !
2015-02-14 19:10:03 +0100: Verifying and repairing partition map for “APPLE SSD SM1024F Media”
2015-02-14 19:10:03 +0100: Starting repair tool:
2015-02-14 19:10:03 +0100: Checking prerequisites
2015-02-14 19:10:03 +0100: Checking the partition list
2015-02-14 19:10:03 +0100: Adjusting partition map to fit whole disk as required
2015-02-14 19:10:03 +0100: Checking for an EFI system partition
2015-02-14 19:10:03 +0100: Checking the EFI system partition’s size
2015-02-14 19:10:03 +0100: Checking the EFI system partition’s file system
2015-02-14 19:10:03 +0100: Checking all HFS data partition loader spaces
2015-02-14 19:10:03 +0100: Checking booter partitions
2015-02-14 19:10:03 +0100: Checking booter partition disk0s3
2015-02-14 19:10:03 +0100: Repairing file system.
2015-02-14 19:10:03 +0100: Checking Journaled HFS Plus volume.
2015-02-14 19:10:03 +0100: Invalid number of allocation blocks
2015-02-14 19:10:03 +0100: The volume could not be verified completely.
2015-02-14 19:10:03 +0100: File system check exit code is 8.
2015-02-14 19:10:03 +0100: Updating boot support partitions for the volume as required.
2015-02-14 19:10:03 +0100: Reviewing boot support loaders
2015-02-14 19:10:03 +0100: Checking Core Storage Physical Volume partitions
2015-02-14 19:10:04 +0100: Updating Windows boot.ini files as required
2015-02-14 19:10:04 +0100: Problems were encountered during repair of the partition map
2015-02-14 19:10:04 +0100: Error: This disk needs to be repaired. Click Repair Disk.

If you have a backup (for both OS's: OS X and Windows) you might try with booting to single user mode and use fsck tool: Resolve startup issues and perform disk maintenance with Disk Utility and fsck - Apple Support
But if that would be my own mac i would probably create myself a Recovery USB Disk or Bootable OS Yosemite Installer Disk and repartition my Hard Drive and then reinstall OS X and restore data to it. If Disk Utility is reporting an issue with Partition Map Scheme i would be a bit anxious about my data stored on this drive...
Mac Basics: Time Machine backs up your Mac - Apple Support
OS X: About Recovery Disk Assistant - Apple Support
Create a bootable installer for OS X Mavericks or Yosemite - Apple Support
How to move data to your new Mac using Mountain Lion and earlier - Apple Support also Yosemite

What does problems were found with the partition map mean

Why is there a problem when I run my disk utility that says "problems were found with the partition map that which might prevent booting"? Why is there a problem????????

You have to repair your partition map. It's the most important part of the hard drive related to software, because if the partition map doesn't work, the whole hard drive is useless.
As you have OS X Lion, you should be able to repair it while OS X is started. Open Disk Utility (in /Applications/Utilities), choose your hard drive at the top of the sidebar, and press the button to repair the disk. What do you see in the blank box?
Also, after choosing the hard drive in Disk Utility, tell me the SMART status, at the bottom of the window. You may also want to check the Macintosh HD status

My time machine 3 TB HD was encryption enabled and it took forever. I tried reformattiing, it is online, but, get this Partition map repair failed while adjusting structures to fit current whole disk size. Any comments appreciated.

My time machine 3 TB HD was encryption enabled and it took forever. I tried reformattiing, it is online, but, get this Partition map repair failed while adjusting structures to fit current whole disk size. Any comments appreciated.

This issue has been in discussion (actively) since last August here:
https://discussions.apple.com/thread/4218970?start=0&tstart=0
After months and months of new reports, it's pretty clear that this is an Apple Mountain Lion problem and one that Apple needs to address. As one frsutrated user noted :
>>There is no consistent solution for a user. Apple has to supply it. All you can do is submit a bug report to
>> http://www.apple.com/feedback
Please, if you are encountering this problem you will save yourself a lot of wasted time and energey simple by joining me and others in asking Apple to fix this problem: Make a bug report.
Thanks!

Partition map needs to be repaired - what next?

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