After upgrade Time Machine won't work

Discussion in 'OS X Mountain Lion (10.8)' started by tyrell456, Jul 26, 2012.

  1. tyrell456 macrumors member

    Dec 28, 2011
    Salt Lake City, Utah
    I have a Late-2011 13" MBP that came with Lion, and I just upgraded it to Mountain Lion last night. However, since the upgrade, it no longer works with my Time Machine backup I've been using on Lion. When I try to backup, it pops up this box:

    Does Time Machine not support backing up to the same disk a previous version of OS X (in this case, Lion) was using? Do I have to wipe the whole backup and start fresh? Or is there something going wrong here?
  2. candecochran macrumors newbie

    Jul 26, 2012
    I have this exact issue after the upgrade along with a whole host of other issues. Here are a couple:

    My iMac has also doubled the time it takes to boot up.
    Safari takes MINUTES to load a page - it is so painfully slow.

    Has anyone found any updates to these issues?
  3. marhk macrumors newbie

    Mar 3, 2009
  4. DockMac macrumors regular

    Dec 22, 2008
    Mine works, BUT, it says there is no Latest Backup and no Oldest Backup but they are still on the disk.
  5. SDRacerR1 macrumors member

    Aug 28, 2009
    Thats how mine was...WATCH OUT....It deleted ALL my Lion TM backups!!!! Thankfully i have a SuperDuper clone!
  6. Corrode macrumors 6502a


    Dec 26, 2008
    Calgary, AB
    I'm having the same problem. External HD connected to Airport Extreme.

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