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Data Recovery from older Disk Drive


My old Mac, G4 tower running 10.4.11 died. I need to recover data from the hard drive. I put the drive in a disk drive enclosure via USB but my new Mac, Mac Pro Intel, 10.4.11 cannot read the drive. I get an error message, "this drive is not readable by this computer, eject, initialize". It sees the USB drive in disk utility but cannot see the data.

Anyone know the best route from here?

All the best,

Billy Baty

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One wonders if,

In reply to: Data Recovery from older Disk Drive

that drive is the reason the G4 died.

Sounds like that drive is not particularly healthy.

Did you make sure to set the jumpers to Master (or Single) before it went into the enclosure?
Cable Select will not cut it for externals


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Re: One wonders if . . .

In reply to: One wonders if,

Well, the old G4 died from the power supply going out. The hard drive worked just fine until the power supply finally gave up it's ghost for good.

They enclosed the hard drive at the computer store so I don't know if it is set to master or single. Do you know for a fact that I will get the error message "this drive is not readable by this computer" if the drive is not set to single?

I was told that since the old computer was in "Classic" that the new Intel computer could not read the old drive. I was hoping that someone knew about this aspect.

All the best,


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In reply to: Re: One wonders if . . .

and now you mention it.

The drive was formatted under System 9, probably HFS+, and I have seen Intel machines read those disks. It's not a problem with what the system is on the drive, more a problem with the formatting.

That message, which is very generic, can be caused by a number of things including No Formatting at all, damaged directory or a damaged drive.

The jumper settings are important as an incorrect setting can cause the drive not to mount or to display that message.

Have the store confirm the jumper settings, and it your machine still cannot read it, look for your local Macintosh Users Group.
Someone there will have a System 9 machine that will read that drive and recover the data for you.


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Re: Jumper

In reply to: Classic

Okay, That's the first thing I'll check out.



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Data Recovery from older Disk Drive

In reply to: Re: Jumper

I had exactly the same problem with an iMac G4 1.25GHz (Tiger). PU die suddenly. Apple said they couldn't fix it. This PU wasn't produce anymore.
I bought a Powered USB to SATA Cable and connected the old HD to my new iMac Intel Core 2 Duo (Leopard). It has immediately mount on the desktop and allow me to back-up my old data.

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Neat trick,

In reply to: Data Recovery from older Disk Drive

considering that the iMac G4 had an IDE drive and not SATA.

How did you connect the ATA drive from the iMac G4 to the SATA connector?


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backup old HD

In reply to: Neat trick,

I suppose you make a mistake. Because it's what I did and it's work !

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