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XP Pro won't read 80Gb drive formatted in 2000

S

syf3r

Senior member
I've got an 80Gb drive in a pull-out bay, that was formatted as in 2000. When I put the drive in my XP Pro machine, the BIOS reads it as the proper size on bootup, but XP doesn't mount the drive. It does, however, show a drive letter for it. In Disk Management, XP shows the drive as a 7Gb drive, healthy, but inactive. Not sure what the problem might be... anyone know what I might be overlooking?

/syf3r
 
The drive was formatted as NTFS under 2000. I just tried putting it back in the 2000 machine and it reads just fine, so no damage was done to it when I put it in the XP machine, but the XP machine won't read it.

/syf3r
 
Okay, I just tried a 120Gb drive in another pullout bay, and it reads just fine. I have access to all the files on it. The 120Gb is also NTFS, but I can't remember on what machine I formatted it, it's been around a while. My suspicion is that the 80Gb drive was formatted on a machine on which 48-bit LBA wasn't set up properly. Since the drive is only 80Gb I never noticed a problem on the 2000 machines I had. (The XP machine that has a problem reading it is my first XP machine so I'm still getting used to it).

I also suspect that the drives I format on the XP machine might not read on my 2000 machine.

Am I right that a drive won't be readable in a 48-bit LBA environ if it was formatted in an earlier LBA? So basically I need to reformat my drives for 48-bit, or is the problem I'm experiencing separate from that?

/syf3r
 
The jumpers are set to cable select. Since there are two bays on that machine, all 5 of my pullout drives are set to cable select so I don't have to worry about placement.
As I said, I just found a 120Gb drive that does work, and I also found a 60 that doesn't. I'm wondering if the two that don't work (60 and 80) were formatted under win2000 service pack 2. I do remember that I didn't move to service pack 3 or 4 for a long time. If this is the case, would being formatted under win2000 SP2 (48-bit LBA wasn't available until SP3) be a possible cause?

/syf3r
 
Actually, the 60Gb drive *does* load, and I have access to it. However, when I boot the machine with the 60Gb in it, Windows reads the 60Gb and gives it a drive letter, but also gives another drive letter that has no access. Disk Manager shows the drive as one partition, and doesn't show any hidden or other-OS partition at all.
I'm going to move all the data off the 60Gb onto the 160, and then reformat the 60 in XP, copy a few files to it and try it in my 2000 box. I think the fact that they were originally formatted under win2000 SP2 might be the cause.

/syf3r
 
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