I have been testing several older HDD's that been collecting here to determine which work, and which do not. I am using a USB kit consisting of an external power supply with a molex and a cable with a USB male on one end and an EIDE adapter on the other. I am plugging the USB into the back of the computer.
The first thing I notice is that 10 of 12 HDD's are not recognized at all by a Ubuntu 12.04 computer. However all but two of the 10 show data transfer when plugged in (the cable glows red at the adapter when data is being transferred.) AFAIK all the drives but two were working when put into the drawer.
So the first question is, are the 10 drives, which I thought were good, bad or is there an issue, such as formatting, which keeps them from being recognized, and if so what might that/those issue/s be? BTW, I have tried a combination of Master, Slave, and Cable Select and AFAICT, it doesn't matter how the jumper is set.
Secondly, for the two drives that do work, they are not consistently recognized. For example, if I reboot the machine, and plug in one of the "non-working" drives, then try one of the working drives, they are usually not recognized. But if I reboot with them plugged in, they are recognized. Or if I reboot, then plug in the working drive before trying another drive, it is recognized.
Anyone shed any light on this?