Disk utility message "partition failed". What to do??

Discussion in 'macOS' started by Serpent12, Jul 23, 2011.

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  1. Serpent12, Jul 23, 2011

    Serpent12 macrumors newbie

    Joined:
    Jul 23, 2011
    #1
    HI,

    I just downloaded Lion and was trying to make a seperate partition for it do I didnt delete Snow Leopard..
    WHen i was doing it, my computer froze for a while so i had to turn it off manually...


    Now when i try to create a partition i get this message..

    Partition failed with the error:


    Could not modify partition map because filesystem verification failed

    how can i fix this so i can install Lion on a partition??



    PS I dont have a external HD so i dont want to risk losing all my files...
     
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  2. MacUser2525, Jul 23, 2011

    MacUser2525 macrumors 68000

    MacUser2525

    Joined:
    Mar 17, 2007
    Location:
    Canada
    #2
    Well you should not be attempting this without backup then.. That said boot your computer to single user mode (hold s key while booting) there it will tell you the commands to type in to check the file system and mount your / once done typing in reboot and hitting enter key will restart your machine halt shuts it down.
     
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