I've been asked to look at a MBP to see if I can retrieve some data from it. I'm not sure what information is required for assistance as all I can see is what's printed on the outside of the machine itself....MacBook Pro. I was told it was purchased sometime around 2009! The problem I'm running into is that when I hit the power button, it starts up with a grey screen and the apple logo, then a spinning wheel that just keeps on spinning. I've tried using the special commands at boot time ie: Safe Mode etc to no avail. I can hold the Option button and get an image of the Hard Drive (Boot Disk and Recovery Disk - I believe it said), but the wheel spins forever whichever I click on. I'm also able to start it in Verbose mode and I see, disk0s2: I/O error jnl: disk0s2: update_fs_block: error reading fs block # XXXXX! (ret 5) then it just starts scrolling endlessly something about (hard to read): disk0s2: 0x6 (UNDEFINED) disk0s3: media not present so, I assume the Hard Drive is going or has gone bad, but I'm not sure. I spoke with the owner and he brought me an external HD but, without a copy of the OS on it, I believe it's useless at this point. Is there any way to create a boot disk/systems disk so that I can at least boot from the external HD to copy some files from the internal HD...retrieve some data? Also, I'm not sure about this but I have available a linux desktop computer. Is it possible to connect this via USB to the MBP and mount it's HD for data retrieval that way? This is assuming that the data is not corrupted.