Q: Disk Drive ejecting itself

@Jim

were they all IDE or SATA drives?

@Jim

Who told you your data was lost?

I have never had a problem recovering a drive using OSX Journaled - that is the POINT of journals!

UNLESS the drive has physical damage.  The issue we are discussing in this thread is a software or interface problem, which would not be capable of damaging pre-existing data.

I'll try to help, but we should likely get you on a new thread. 

@Kari

Your not going to go back to IDE drives.  They are slower, more expensive and harder to find than SATA now - at least at the wholesale level.

Please read the info I posted earlier about how to diagnose your problem: https://discussions.apple.com/message/15544501#15544501

#1, I will choose whatever drive I wish. If it's an IDE that's slower I really don't care as long as it's stable. Stability is far more important to me than lighting fast speeds. (btw, "your" should be "you're")

#2, I can find whatever drive I want with searching and I am aware of how hard or not an ide drive is to find. Whichever, it will not be a WD drive.

#3 I will attempt to get said information but if the drive will not mount on the MBpro, finding said info cannot occur & will be replacing said drive with whatever drive I find that I want & hope never to have to come back here again.

Just got a new Macbook Pro and I attempted to copy backed up data from my western digital hd. The second the copy process starts, the drive ejects. This seems to be an ongoing issue. I'm running 10.6.8. Any fixes?

Guys and gals,

this issue has been completely resolved for me as of now.  I have followed the instructions for downgrading 2 kexts from the 10.6.4 combo update (IOUSBFamily.kext and IOUSBMassStorage.kext) using kext helper b7.  I was using the Thermaltake BlacX Duet, but when it wouldn't allow me to complete TM backups, I thought it was defective and bought 2 Vantec NexStar enclosures.  They didn't work either.  I thought it was a hardware issue, but when I found this thread, I knew it had to be OS related.  My late 2007 white macbook 2.2 had no issues with any drive that my mid 2010 i5 iMac spit out, which is the system in question.  The BlacX duet has the JMicron chipset, but the NexStar enclosures have some Initio Corporation chip in them. 

Now I have a spare USB docking station... Apple should be ashamed they have ignored the issue this long.

Here's hoping the $30 I spend on Lion isn't wasted.  I doubt the 10.6.4 kexts will be compatible with Lion 10.7.0...

Thanks macdim for the suggestion. I'm not technically savvy but am also not sure though if that's the key problem. On my system, for instance, the two kexts that you mention are dated Aug 2009 yet I only started having this problem in April 2011. One doesn't expect 2 year old kexts to suddenly start being a problem without them having changed at all. This to me seems to suggest something else is at play.

Have you tried it though?  It's fairly straightforward.

I will check the dates on the kexts when I get home later tonight.

Have you tried it though?  It's fairly straightforward.

I will check the dates on the kexts when I get home later tonight.

Yea I tried it and it didn't work. I even tried it with the 10.5.8 version of iousbfamily.kext---> bad idea. Haha I fixed that, but hard drive still doesnt copy. I'm currently backing up my data to another computer(running Windows), and will format it to HFS after. My fat32 formatted usb stick worked when copying.

I'm using a 2tb samsung g3 station with my 2010 27" imac and after having one hard drive replaced, this new one does the same thing - ejects itself after a while. I'm running 10.6.8. Are there any working solutions at the moment or do we just hope that Lion will finally fix this?

I'm afraid Lion is our only hope. Maybe, just maybe, Apple might back-port the USB drivers from Lion to Snow Leopard, but I would not hold my breath.

After using 10.6.8 since it was released, I have been seeing my USB Drobo drop from the desktop and quickly reappear again. Lately, I have also been seeing some of my old applications (example: Now Up To Date) crashing when it starts up.  If left running, it will eventually crash. Not good!

Again, I will down grade my machine to 10.6.4 and not do anymore upgrades, especailly when I have to use older software that is no longer being supported (example: Now Up To Date, Quicken 2007, etc) and I can't upgrade. Don't tell me about iCal and BusyCal. I tried it and it doesn't have the feature of Now Up To Date. (iCal and BusyCal my good for personal use, but you can't run a business with it).

This is very furstrating....

A once in a lifetime event, watching Apple morph into the Microsoft of the past - too big to care!

Sorry os x lion won't save us on this - at least it hasn't saved me. Same problem continues!