A while back (not so long ago) I decided to try and add RAM to my ancient 'deb' machine and it didn't work out so well. I had three hard disks in it at the time, one 40gb with a dual boot of XP and ubuntu, another one an 8gb with XP only and the third was a 2 gig with some old backups on it(it was unplugged at the time because I wasn't in need of it). Ubuntu worked fine with the change of RAM and sped up as I had wanted it to. The Xp on the big hard drive died of a blue screen and the other XP wouldn't log on. (That just shows how capable ubuntu is doesn't it?)
So, I tried to fix the Blue Sceened XP by putting the RAM back exactly where I found it but it didn't work. So, I put it all back like it was in the end, two OS poorer.
Then, I used the ubuntu and played around with it a lot. But one day, I was playing around with the users and groups and I accidentally made all users guests (I don't have a clue!)!?!?!
So, it was then useless to me but I left it because I had other things to do at the time. The day before yesterday, I booted from the 8gb to see what would happen and it worked perfectly. I was happy then and so I switched to the other one and reinstalled ubuntu successfully therefore havin two OS back up and running.
Then, I did the stupidest thing in the world, I decided to copy the contents of the 8gig hard disk to the xp partition on the 40gb. It went OK at first(but for the fan that was spinning tons of RPS; Remember, this is an old computer though) and then I went out for a bit and when I came back, the fan was spinning at it's usual, slow rate and the screen was blank. Nothing I did could change it so I hit the turn off button and rebooted. Then, it said "Disk Reader Error" then nothing.
So, (I thought *!*!*!) I supposed that the cable connected to the hard disks had died. I unplugged the cd and dvd drives and plugged one of them into the 40gb. Nothing. The 8gb. Nothing. Then I left them both alone and went to bed!
The next morning, I got another cable from a bag of stored cables and I tried it. At first I only plugged it into the 40gb(for no particular reason) and booted. It worked. Perfectly. Straight back into the same old ubuntu(the xp was flat obviously!). So, as happy as an angel. I took the other cable out. I then plugged in both hard disks making the XP a slave and booted. "Disk Reader Error"(*!?) So, I unplugged the 8gb and booted, making it work fine again.
That was what it was like until I wrote this post, supposing that the 8gb was dead and diseased. Half way through the post though, I tried the 8gb seperately and it worked!
And that is the end of the tale of: TWO HARD DISKS!