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Eeek! - Data recovery from a formatted Mac disk

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March 24, 2008 2:33:40 PM

Hi Folks,
Please forgive me posting what is really a Mac question, but one which I am trying to solve via Linux. My muppet house mate has just managed to partition AND format the disk in his G4 MacBook, just before he realised that he had not made a copy of a rather important recording session. We have access to another G4 Mac with Firewire support on both machines so I can get to the blasted disk using target mode. I'm not a Mac user and from my looking on the web there do not seem to be any free Mac tools for a recovery situation like this, maybe DiskWarrior 4 but that is $99.95 :( 

I'm thinking that I could use an Ubuntu PPC live CD on the working Mac to allow me to mount the formatted disk and then use Linux tools to recover data, the trouble is that I have never had cause to do this before so I'm not really sure where to start. I know I can create a DD image of the drive but how do I go about searching the sectors to see if I can find the illusive recording session my housemate needs? Remember that this would have to be a live CD environment so default Ubuntu file tools would be best. Alternatively any other suggestions would be much appreciated...

I've looked at DarwinPorts to see if I could cut out the liveCD requirement but it seem you need the toolkit to compile - Am I missing something or would this involve spending money too?

The sanity of my domestic life is in your hands....!
March 24, 2008 11:13:27 PM

dd the drive, save the disk image and then run a disk image analyzer to look for the data.

Better yet take the drive out of the G4 plug into a Linux PC and do it there.

Buy a new drive for the G4 if you can, it is best to preserve the original drive if you can afford to do so, which will allow you to take it to a data recovery company or buy you some time to look for better data recovery software. There are some tricks data recovery professionals or specialized software can try on the original disk that you cannot do with a "dd" image.

GL :) 
March 25, 2008 8:21:23 AM

The good news of the morning is that we found a backup with 80% of the missing data on it. All the recordings are there, just a couple of mixes and pro tools session files have been lost. The housemate is happy enough to re-mix the missing bits as they needed a little tweaking anyway.

Moving the drive to my Linux box also crossed my mind but being a 2.5" drive and inside a laptop this was not really an option. Spending any money was also not an option although I was wondering about a bargain usb enclosure as a way round it.

I was looking at dd_rescue (why the hell he called it that when we also have ddrescue without the underscore I do not know!) which would seem like the tool to use to create the image using with the log file option seemed like a smart way to go. The bit where I was / am falling down was on the disk image analyser side. Any application names that you know that I could have a look at? I'm thinking that I should really get some sort of boot disc solution together incase my drives finally give up the ghost before I find a new job and replace them...
Related resources
December 11, 2009 12:11:59 PM

Jimmy - You wouldn't happen to work for them would you now? I mean signing up and making this your first post.. waking a thread that was put to rest 14 months ago..
December 11, 2009 2:07:32 PM

You cynic, you.
December 11, 2009 5:19:11 PM

Don't be so harsh on Rahul, errrrr, I mean Jimmy. He's just a starving tech trying to make a living ;)  :lol: 

I own a bridge in NY if anyone's interested :lol: 

The name was selected at random, please don't read anything into it.

Semper Fi :) 
December 11, 2009 8:36:31 PM

Ijack said:
You cynic, you.


In the last couple of weeks I've had a right walk down memory lane with necroposting, maybe it's the season for it.

It did make me chuckle seeing this one again, my landlord was having a right stress at the time as this was a recording he had done with a disabled music project. The mix turned out very well in the end :) 
April 3, 2010 5:10:06 PM

Lets do the time walk aga-ain...He sings wearing fish-net stockings, suspenders, a Basque... I could post a picture if the Mods would allow it!
April 5, 2010 9:18:11 AM

It's just a jump to the left... and a step to the right....








June 4, 2010 2:34:26 PM

Irony at it's finest. Not only has he solved the issue (2 years ago), but he spoke of his dislike for necro-posting. Please look at dates and read every/most posts before posting.
July 26, 2010 11:58:57 AM

Pyroflea said:
Irony at it's finest. Not only has he solved the issue (2 years ago), but he spoke of his dislike for necro-posting. Please look at dates and read every/most posts before posting.


Yeah Pyroflea thats good...
July 26, 2010 5:44:53 PM

Unlike your manners...
July 26, 2010 11:33:01 PM

Johnny Carroll said:
Yeah Pyroflea thats good...


What do you know, resurrected again :D 

I wasn't intending to be rude. It's just proper forum etiquette to not bump age-old threads unless you have a damn good reason to. No need for the attitude.
July 28, 2010 11:39:04 AM

I said you are right we should not post on solved or age old topics...Instead show our interest in new and recent post to resolve the issues if any one needs help or knows about the problem to give a solution for the needful...
July 28, 2010 4:22:22 PM

Johnny Carroll said:
I said you are right we should not post on solved or age old topics...Instead show our interest in new and recent post to resolve the issues if any one needs help or knows about the problem to give a solution for the needful...


Sorry for the misunderstanding. The periods made me think it was a sarcastic comment :lol: 
January 24, 2011 11:40:22 AM

This topic has been closed by Mousemonkey
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