Lion messes up partition tables

My macbook was setup with one mac partition and two windows partitions (C & D). Windows 7 is installed on C. Mac OS X Snow Leopard on the Mac partition.
After Lion upgrade my D partition was lost.
Windows and Lion starts up like before but the second windows partition is nowhere to be found.
When looking in windows explorer the c drive is 200 gig and 70 gig is free. When looking in the disk utility it says the c drive's capacity is 400 gig but only 200 is available. So the C & D drive has been combined but I can't reach my files in the D drive or use the space in the D drive.
The new recovery drive has popped up right after the mac drive but in front of the C drive. Don't know from which partition it took space but it would seem like it used space from the mac drive since it is possible to boot to windows still.
I'm not going to re-install windows. It's not acceptable that so many have problems after the Lion upgrade.
Anyone had the same problem with lost windows partition?

Lion Recovery: Install to new drive
http://support.apple.com/kb/HT4718
What to do if the installer warns that no Recovery HD can be created
Some disk partition configurations may result in the OS X Lion installer reporting that it could not create a Recovery HD. In these situations, even if you are permitted to continue the install, you should quit the install and create an external, bootable OS X Lion hard drive with a Recovery HD, first. You will be able to return to the upgrade to OS X Lion on your computer's boot drive after creating the external Recovery HD.
"Some features of Mac OS X Lion are not supported for the disk (volume name)"
http://support.apple.com/kb/HT4649

Similar Messages

Lion This disk doesn't use the GUID partition table scheme

Hi I have downloaded and began running the installation but it says "This disk doesn't use the GUID partition table scheme", any ideas?! Running latest version of OSX 10.6.8
Thanks in advance!

ok, sorry if I offended you for wrong.
I did not knew Apple ships MBR partitioned disks or has official support for doing so. I always see Windows-PCs with that scheme ( Linux supports mbr and guid just like osx ) .
Of course I know that Disk Utility offers three options : GUID or MBR or Apple partition map for ppc devices.
Lion needs GUID, so a reformat is absolutely necessary for those that have one of the others.
Again sorry.

Snow leopard messed up my external drives HFS partition table.

I bought a 500gb Verbatim external store 'n' go hard drive already formated in HFS+ with FW and USB3 interface and had been using fine with over FW for a couple of months. Once when the cable was unplugged by mistake (The sockets are all jigly, don't know why) I couldn't mount the drive but then I used the USB cable and it worked fine.
I kept on using in on FW till one day I was low on battery while I was using the external drive and my mac just switched off! It doesn't, for a misterious reason give me the low on power message anymore. When switched the computer back on my mac couldn't read the drive. I was getting an actual error message saying that the drive was not readable. Tried the usb cable but I was getting the same message. I went to the genius bar and by using disk warrior we were able to get the folders and the files on the root of the drive but nothing inside those folders and there should be 4 levels of folders.
Now my guess is that something somehow messed up the partition table but I might be wrong. Does anyone know of any tool or any way I could restore my lost data?
Any help will be very appreciated!

It is still an NTFS partition and it cannot be read to reformat unless the disk is repartitioned . An entire NTFS disk could be repartitioned but I don't think one existing non readable partition can be converted to an HFS partition which is why OSX has the error.
Message was edited by: Kangaroos on the prowl

Partition table messed up [SOLVED]

So my problem is that the other one of my hard disks losed it's partition table after I installed Windows XP on it. I deleted partition to get space for XP and installed it on empy partition. Then in Arch I did grub-install. This got me into this so I can't view my partitons on either gParted or QTParted (which crashes when trying to watch hda). Also I can't use command "ls" in /home or it's subdirectories which is on different, fully working disk.
So, I can use and mount these partitons which I can't see with gParted.
fdisk tells me this:
Disk /dev/hda: 203.9 GB, 203928109056 bytes
255 heads, 63 sectors/track, 24792 cylinders, total 398297088 sectors
Units = sectors of 1 * 512 = 512 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 63 40965749 20482843+ 7 HPFS/NTFS
/dev/hda2 40965750 398267414 178650832+ f W95 Ext'd (LBA)
/dev/hda3 286728183 398267414 55769616 b W95 FAT32
/dev/hda5 40965876 286728119 122881122 83 Linux
hda3 should be ext3 like hda5.
So is there any way to get my partitons back without losing any data?

Harr1l wrote:But is there any help for that I can't use "ls" in certain directories?
I don't know. Are you sure that filesystem has no errors? Did you do fsck?
IIRC testdisk can rebuild filesystem from scratch.

How do I get my mac partition to use GUID partition Table Scheme?

I just bought the upgrade for Mountain Lion on my Macbook pro (Mac OS X 10.6.8). I went to install it and i had partitioned my internal harddrive with bootcamp to run windows 7. I went to select the Macintosh partition and it says that disk does not use the GUID partition Table scheme, and it will not let me select it for the upgrade. It says I have to use Disk Utility but I cant seem to figure out how to get it so I can upgrade it to mountain lion. Please help and thank you for your time
P.S. - Let me know if you need more information to get to the conclusion to this problem.

Bonjour is built-in to OS X. No download is needed.
Safari has a Bonjour browser which you can activate by opening Safari Preferences, selecting Advanced and enabling one of the Bonjour entries to add a Bookmark. If you then select the Bookmark, all devices on your local network that are advertising themselves with Bonjour will be shown.
With regards to the Air not finding the printer attached via USB, you can open System Information and select USB in the left column. The top right pane will show all the USB busses on the Air and if the printer and its USB cable are working correctly, then the printer should be listed under one of the USB busses. Do you see it? If not, try another USB printer cable.

I want to install OS X Mavericks on my MacBook Pro which is not with guid partition table

i want to install OS X Mavericks on my MacBook Pro which had both mountain lion & windows 8.1, its not in GUID partition table format, so i couldnt install mavericks, so is there any way to change into GUID partition table format & install Mavericks without losing Windows from my hard disk ?

Open the App Store and upgrade iPhoto to the Mavericks version.
iWork and iLife for Mac come free with every new Mac purchase. Existing users running Mavericks can update their apps for free from the Mac App Store℠. iWork and iLife for iOS are available for free from the App Store℠ for any new device running iOS 7, and are also available as free updates for existing users. GarageBand for Mac and iOS are free for all OS X Mavericks and iOS 7 users. Additional GarageBand instruments and sounds are available for a one-time in-app purchase of $4.99 for each platform.
The iWork apps are free with a new iOS device since 1 SEP 2013. They are free with a new Mac since 1 OCT 2013. They are also free with the upgrade to OS X Mavericks 10.9 if you had the previous version installed when you upgraded.

This disk doesn't use the GUID Partition table scheme.

When I Install the Lion. It is stuck.
Lion This disk doesn’t use the GUID Partition table scheme.Use disk Utility to change the partition scheme.Select the disk,choose the Partition tab,select the Volume Scheme and then click Options.
The last step has problem.
I can not click Options.

In order to repartition the startup drive you will have to boot from your Snow Leopard DVD, select Utilities and then Disk Utility. YOU MUST ERASE YOUR DISK TO CHANGE THE PARTITION TABLE. The good news is that I see you have a Time Machine backup. Make sure that your backup is current before you erase your startup disk.
Even before doing this, save a copy of the Lion installer (it is in the Applications folder) onto an external device. Your external hard drive is a good spot; it won't interfere with your Time Machine backup. This will prevent you from having to download the installer again.
The easiest way to proceed after making sure your Time Machine backup is current, saving a copy of the Lion installer, and repartitioning your startup disk, is to reinstall Snow Leopard on your newly partitioned disk. This will take a little longer but it is simple and is fully supported by Apple. Once that is done and you are running Snow Leopard on your startup disk again, run the Lion installer from whereever you saved it, and then restore your files and settings from your Time Machine backup during the install process.
There is an unsupported procedure for making a bootable Lion DVD, but it is more complex and is not supported by Apple. If you are uncomfortable with any of this and have access to an Apple Store, make an appointment at the Genius Bar and they can help you through the process.

Ubuntu wrecked partition table. Help to fix?

(Macbook Pro 2013 15" Crystalwell 4 Core, 500GB SSD 16GB RAM)
I should have known that installing Ubuntu next to Bootcamp was a bad idea.
So here's what's up... Before this whole debacle began I had two separate partitions on my SSD. The primary partition was for Mavericks with 300GB. The second partition was to a Bootcamped Windows 7 with 150 GB of space. I left 50GB free between the two, which still left me at
disk0s1 for EFI, ~200 MB
disk0s2 for Macintosh HD, 300 GB
disk0s3 for Recovery HD 650 MB
disk0s4 for Bootcamp 148 GB
Here's where my problem began. Genius me decided to attempt to install Ubuntu via live USB onto the 50GB space in between. I have reFIT installed so this wasn't a problem. After loading into Ubuntu and realizing that it wouldn't load into the 50GB space, I rebooted and installed alongside Windows (through the Ubuntu live usb) following the install GUI Prompt.
The installation failed after it got hung on a CRON command and drained the battery from my unplugged computer sitting next to me in my bed (I fell asleep waiting for it to finish, even though it was at 100% battery when it started the installation). When I woke up my computer was dead, so I plugged it in. I started reFIT and booted into Windows after seeing that Ubuntu wasn't there. I was given the "Choose OS" prompt from Windows and Ubuntu wouldn't load, so I said screw it and went back to Mavericks. When I opened my Disk utility partitions table to see where it might have gone wrong....
Great Odin's Raven.
I now had ext4 partitions sitting above my bootcamp partition and linux-swap partitions below it. Absolutely no free space. I switched back to Windows, avoiding the failed Ubuntu OS, and uninstalled wubi from Windows (the universal uninstall for ubuntu, I used the Windows "uninstall application" application from Control Center), hopefully deleting the mess it had made of my drive table.
It didn't.
Since I couldn't delete the partitions back to free space around my bootcamp volume using Disk utility (insufficient hfs+ permissions or something like that), I decided to take a more agressive option. I installed partedMagic onto a live USB and once again rebooted my computer into the live USB. I went in and using gParted removed the partitions in front of the bootcamp volume and behind it reducing them to empty space. Good! Hoping for the best I went back to reFIT and booted into Windows...
"No bootable device -- insert boot disk and press any key"
Well crap.
After some more research into why this wasn't working, I was sure that somehow my EFI wasn't loading the right area of my hard drive. Then I think I found out what happened. I ran diskutil list from terminal and saw this..
IceMan-HomeBase:~ Tim$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *500.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                  Apple_HFS Macintosh HD            300.2 GB   disk0s2
   3:                  Apple_HFS Recovery HD             650.0 MB   disk0s3
   4:       Microsoft Basic Data BOOTCAMP                148.0 GB   disk0s6
disk0s6. There's the problem. Mac doesn't like anything beyond disk0s4, which is where Bootcamp was originally and where it should be now, at disk0s4.
If it were merely an issue of copying the bootcamp volume and repartitioning the hard drive, that wouldn't be a problem, but even WinClone doesn't like this volume. When I tried to do a copy, it threw an error saying "Invalid partition ID of 6"
Here is my question.
Is there a way to change the IDENTIFIER back to disk0s4 from disk0s6 and save my Windows 7 partition, is there some other way to save my files to a backup and clean install, or is he dead, Jim?
Sorry if this was a little long-winded, but I figured too much information would be better than not enough.
Thank you in advance for anyone brave enough to read this.
TL;DR
Partition table went bogus because of a bad Ubuntu OS install. Windows can't find a bootable device. Disk0s4 is now disk0s6. Possible way to change this?

Problem solved, I used iPartition to resize the partition back to its original size after which I could copy all data off.

Partition table corrupted after installing OSX10.8.3

I installed OSX 10.8.3 from the Mac App Store on Friday and after installing, my macbook rebooted and a grey bar appeared at the bottom of the screen like it was updating the EFI...
After waiting the bar to be full (apprx 45 minutes), it simply stopped...
I tried restarting and the bar reappeared... So I decided to reboot in Verbose and saw my disk being repaired once, twice, 3 times and then nothing more...
I then booted on my one week old clone on an external disk (thank god I had one) and checked the internal disk with the following :
Disk util (GUI)
Disk util (Terminal)
Testdisk and pdisk
Data Rescue 3
Everything seems ok with reading the information on the disk, but impossible to mount/unmount the OS X partition
But the partition table is not right...
I need to be able to use my computer so I might erase and reinstall everything today,
But if someone has an explanation to this mess I want to know it...
Macbook Pro early 2011
2.7GHz Intel i7
RAM 8Go

I tried burning the firmware updater to disc, but I when I try to boot from it, it says "No bootable device — insert boot disk and press any key.” This is with a an external firewire dvd burner. But I also tried the same disc with another MBP that still has its original internal superdrive, and I got the same error there. That MBP can boot from the Crucial SSD firmware disc though, so I don't know what the deal is.
I'd gotten rid of my bootcamp partition a good while ago since VMWare had been taking care of any Windows needs I had just fine, but I still had a Winclone backup of my old bootcamp partition. So I restored it to a new partition, booted into Windows 7, and installed the Intel SSD Toolkit. But every time I tried to run it, it just crashed on me. I watched it in the task manager, and it would appear in the process list for a while and then just disappear.
I've already ordered a bigger Crucial M4 to replace the X-25M (it was getting a bit full anyway), so I hope things go better with it. Thanks for trying to help though, everybody.

HT5225 "This disc does not use the GUID Partition Table Scheme...". I keep getting this message when I try to install OSXLion. It has something to do with a repair Apple performed last year. I use a 17" MacBookPro. Any suggestions?

"This disc does not use the GUID Partition Table Scheme. Use Disc Utility to change the partition scheme". I keep getting this message when I try to install OSX Lion so that I can upgrade my 17" MacBookPro to move to iCloud. My harddrive was replaced last year by Apple because of a fault by the manufacturer and I think this is the cause of the problem. What can I do so that I don't lose my content.

When you click the partion tab. There is option on the bottom of the window. Click on that there there are these options.

Creating Local partitioned index on Range-Partitioned table.

Hi All,
Database Version: Oracle 8i
OS Platform: Solaris
I need to create Local-Partitioned index on a column in Range-Partitioned table having 8 million records, is there any way to perform it in fastest way.
I think we can use Nologging, Parallel, Unrecoverable options.
But while considering Undo and Redo also mainly time required to perform this activity....Which is the best method ?
Please guide me to perform it in fastest way and also online !!!
-Yasser

YasserRACDBA wrote:
3. CREATE INDEX CSB_CLIENT_CODE ON CS_BILLING (CLIENT_CODE) LOCAL
NOLOGGING PARALLEL (DEGREE 14) online;
4. Analyze the table with cascade option.
Do you think this is the only method to perform operation in fastest way? As table contain 8 million records and its production database.Yasser,
if all partitions should go to the same tablespace then you don't need to specify it for each partition.
In addition you could use the "COMPUTE STATISTICS" clause then you don't need to analyze, if you want to do it only because of the added index.
If you want to do it separately, then analyze only the index. Of course, if you want to analyze the table, too, your approach is fine.
So this is how the statement could look like:
CREATE INDEX CSB_CLIENT_CODE ON CS_BILLING (CLIENT_CODE) TABLESPACE CS_BILLING LOCAL NOLOGGING PARALLEL (DEGREE 14) ONLINE COMPUTE STATISTICS;
If this operation exceeds particular time window....can i kill the process?...What worst will happen if i kill this process?Killing an ONLINE operation is a bit of a mess... You're already quite on the edge (parallel, online, possibly compute statistics) with this statement. The ONLINE operation creates an IOT table to record the changes to the underlying table during the build operation. All these things need to be cleaned up if the operation fails or the process dies/gets killed. This cleanup is supposed to be performed by the SMON process if I remember correctly. I remember that I once ran into trouble in 8i after such an operation failed, may be I got even an ORA-00600 when I tried to access the table afterwards.
It's not unlikely that your 8.1.7.2 makes your worries with this kind of statement, so be prepared.
How much time it may take? (Just to be on safer side)The time it takes to scan the whole table (if the information can't read from another index), the sorting operation, plus writing the segment, plus any wait time due to concurrent DML / locks, plus the time to process the table that holds the changes that were done to the table while building the index.
You can try to run an EXPLAIN PLAN on your create index statement which will give you a cost indication if you're using the cost based optimizer.
Please suggest me if any other way exists to perform in fastest way.Since you will need to sort 8 million rows, if you have sufficient memory you could bump up the SORT_AREA_SIZE for your session temporarily to sort as much as possible in RAM.
-- Use e.g. 100000000 to allow a 100M SORT_AREA_SIZE
ALTER SESSION SET SORT_AREA_SIZE = <something_large>;
Regards,
Randolf
Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/

Advice please on Installing OSX Lion on a Partition for FCP7

Always best to ask for advice before messing with the Mac!
I have OSX 10.8.5 Mountain Lion installed on my late 2009 27" iMac, I installed that after a recent complete drive failure thinking that a more up to date OS would be a good idea, in part it was but my most valuable application FCP 7 Studio behaves oddly now especially with key commands and some timeline functions are screwy. So I want to install OSX Lion on a partition on the HD and run FCP7 on that partition. FCP 7 behaved just fine under Lion.
I have made a 700 gig partition on the iMac's HD, and I do have an installation copy of OSX Lion that I downloaded from my App Store account. That is at the moment on my regular iMac's Mountain Lion partition in the Applications folder. I also have a copy of it on an external drive.
So my question is how can I install Lion on the newly created partition, and do so safely? What are the procedures for this?
I have my FCP 7 Studio disks so I will be able to reinstall that on the new Lion partition afterwards.
I'd appreciate any step by step help or pointers to where I can find those instructions. Having messed up with the iMac last month I am nervous about just diving into this without " professional help"!
Many thanks,
PM

Ok, worked it out myself….all's well now.
PM

Guid partition table scheme

I get this message that says that but cant read the rest its says use the disk utitlity to change....
Cant read the rest. Can someone help me?

Are you trying to install Mountain Lion and get that message?
If so, it means you have to reformat your hard drive as GUID Partition Table, which will erase all of your data. So, you need to backup your hard drive before you try.
While somewhat old, this seems to be a good tutorial on reformatting and partitioning: http://www.kenstone.net/fcp_homepage/partitioning_tiger.html
Here is a more current tutorial: http://www.ehow.com/how_4779169_partition-drive-mac-os-x.html
You'll need to boot from your Snow Leopard install disk in order to reformat startup hard drive.
Once you reformat and install Snow Leopard on the drive, you can update to 10.6.8 and then install Mountain Lion. Once you reinstall, it will ask if you want to migrate from another Mac or Backup. Choose yes and connect the backup drive.

Why does Disk Utility keep breaking my partition table?

I have two drives in my Mac Mini - the original drive it came with, and a SSD drive. I dual boot from the SSD drive and it is fine. On my original drive, I still have the original Lion install, but I would like to add a NTFS partition for use by windows. The problem is that every single time I have Disk Utility try to do something to it, like delete a partion, it breaks the partition table. It does delete the partition, but then it goes and sets all the partition types to 07 (Microsoft BAsic) instead of AF (Apple HFS). Then Disk utility will claim the disk is broken and can't mount the partitions anymore. I have to go in with gdisk to set the partition type back to AF and it will start working again. BTW, gdisk claims the partition table type is hybrid MBR, even though windows is not installed on it. Diskutil thinks it is GUID. I did create a partition on it from the windows side once if that means anything.
Now what I want to do is resize the HFS partition, but I am deathly afraid that DU will break something that isn't as easy to fix.

I repaired permissions because I reinstalled Epson drivers, and reinstalling Epson drivers has given me a permissions problems in the past which was cured by running permission repair. As it is an easy prophylactic step to take, I did it again.
It may not be needed, but that is not the issue, which is why, when the permissions are indicated as repaired, are they not.
Other previous posts on this issue suggest that these indications of permissions not being repaired should be ignored, so the report made by Disk Utility is simply a programming error.
Disk Utility needs some work if it is going to respond to usage by a typical average user this way.

CFDisk let me edit partition table as user

I find this interesting... I forgot to sudo while running cfdisk, and it allowed me to edit my partition table as a normal user. And write the changes. I don't like this, it seems a bit of a security hole if anybody can log in and clobber partitions.
I note that my user has group rw positions on the /dev/sdb device, as a member of the disk group. I can't remember what the purpose of this group is, my user may be in it for accessing the cdrom drive.
I also notice that cfdisk is in /sbin/, and that all users have execute permissions on this program.
Now, what would be the best way to prevent this from happening. Yeah, I could change permissions on the file, but I'm curious to know if there's something else I've overlooked. Its a great convenience that I can run the command myself, but I don't want it happening for the other users I occasionally allow to log into the system, nor for users who manage to hack their way in, but don't manage to hack root.
Note: I also have the permissions to run mke2fs. I think it must be from being in the disk group.
Dusty

Well, my user is not in disk group, being in storage group is enough for cfdisk to let him do partitioning of /dev/sda. /dev/hdx are safe, though.
[ass@zzz ~]$ ls -l /dev/sda
brw-rw---- 1 root storage 8, 0 2006-10-23 04:33 /dev/sda
[ass@zzz ~]$ ls -l /dev/hda
brw-rw---- 1 root disk 3, 0 2006-10-23 04:33 /dev/hda
Removing him from the group fixes this (after reboot).
I added him to storage and optical groups for convenient use of cdrom/usb stick as required by kde/hal combo.
Maybe wouldn't mind messing up my usb stick, but as it happens /dev/sda is a fixed scsi disk.
Guessing this behaviour is caused by udev.rules
# default permissions for all block devices
SUBSYSTEM=="block", GROUP="disk"
# permissions for removable devices like cardreaders or sticks
KERNEL=="sd*", ATTRS{scsi_level}=="3", ATTRS{type}=="0", GROUP="storage"
# permissions for firewire external drives
KERNEL=="sd*", ATTRS{scsi_level}=="5", GROUP="storage"
# permissions for usb to scsi external adapters
KERNEL=="sd*", ATTRS{scsi_level}=="3", ATTRS{type}=="7", GROUP="storage"
That's all rules referring to "storage" group and sd* devices in my /etc/udev.rules (as installed by pacman)
Now, I'd like udev to differentiate between my fixed and removable /dev/sd*. Anyone knows what needs to be changed?

Lion messes up partition tables

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