I am using a 2010 imac with wired keyboard, running mountain lion and decided to upgrade to mavericks. Backups complete so no data issues here. Upon installation I got the typical install failed, disk damaged. Here's what I've tried... In Disk utility 1TB WDC #123456 iMac HD -When I highlight the 1TB line and verify, I get partition appears ok, repair disk I get partition appears ok. -When I highlight the iMac HD line and verify, I get error, disk needs repaired Of course when you are on a sub line repair disk is grayed out. Is there a way to repair this? Also tried... -Load safe mode (hold shift on startup).... doesn't work, mac shuts down after progress bar starts. -Restore from backup, connected to time capsule with ethernet cable.... time capsule backups are visible but no destination drive is available. -Restore from internet by command+control+R... doesn't work, just boots to the osx installer. I do not have recovery disks Any help would be appreciated.