![]() ![]() Sudo /opt/local/bin/ddrescue -v -n -c 4096 /dev/rdisk3s2 Rescue.dmg Rescue.log I created a directory on a drive with more than 499.1GB of space, cd'd to that directory and executed the command: The next step was to make an image of the failing drive. So I knew that the partition I wanted to save was disk3s2. This yielded the following:Ģ: Apple_HFS Macintosh HD 499.1 GB disk3s2ģ: Apple_Boot Recovery HD 650.0 MB disk3s3 To see the disk identifier of the partition I wanted to save. I next ran (with the drive still attached): The first thing I did was fire up a terminal window, and at the suggestion of a friend, installed ddrescue via MacPorts: If it is a logical problem, every time you write to the drive, you damage it more. It has been a long time since I had recovered data from a failing drive, but I did remember the number one rule- access the drive as little as possible, as if there is a physical issue (i.e.- the heads crashing onto the platter) every time the head moves, you might be damaging the drive more. Mar 14 15:25:35 MacPro.local kernel: disk3s2: I/O error. I also noticed that in the console I was getting periodic lines of: Disk Utility is showing a greyed out "Macintosh HD" partition, that is formatted with HFS+, which was promising, but there was no way to access the files. Plugged it into my Mac Pro, and no go, the drive will not mount. So I got out the micro screw drivers, and T6 torx bit, and pulled the drive, to put it in an external FW case. Thought 2- this is an old machine (2007 MBP), perhaps it is the SATA chip on board that is dying. Tried to connect the MBP in FireWire mode to my Mac Pro- no go. My first thought was "No biggie- we have Time Machine!" So I go and look through the remote TM drive files, and realize that the last time my wife's machine was backed up, was roughly a year ago, around the time we installed Lion on it. I quickly shut the machine off in order to prevent further damage in case anything was salvageable. Upon a reboot in verbose mode (as the machine wouldn't boot) I was getting the dreaded Bus I/O error when the drive was being accessed. So on Wednesday night, my wife's MBP hard drive suddenly died. Back Story - (skip down to the next section for the data recovery portion) I thought this might be useful to the rest of the MacAch, in case anyone else ends up in a similar situation. Tribus: Where the women are strong, the men are good looking, and all the children are above average. ![]()
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