I have a Toshiba SD-H400 that was used with cable a little over two years ago. In December of '06, I stopped my tivo service and went to D'tv. My 2yr contract expired with them and I am now back to cable. I went to power up my tivo that had been sitting quietly in the entertainment center unpowered and it would not boot. Just the gray power up screen and a hard drive that was trying to find sectors without luck.
I got a copy of the instant cake for that model which had version 7.2 of the software. Wanting to be 100% correct that the only problem was the tivo drive, I ran instant cake on an old 10G seagate drive I had from an old Xbox. (I know the original was 80G, remember this was only a test)
Upon installation, the tivo jumped back to life, and since I only use the tivo in my bedroom for pausing and backing up live tv I figured I'd let it go a while with that drive before upgrading it. All was good, The software even updated to 9.3.2a. The only problem was (beyond the obvious lack of space for any recordings) was the fact that the drive was noisy during seeks, and since it was small it did them often. Not good in the bedroom when trying to sleep.
I then remembered a couple of old series 1 Directtivo's I had. I openend up one which had 2 drives, a 30G and a 15G quantum fireball. I figured these should be quieter so I instant caked the 30 and put it in the machine.
Here's where the question comes in.
After running through the guided setup, I forced a call to tivo and saw the pending restart message. Assuming this was for the software update I did a reboot and the unit would not get past the gray screen.
I tried the same with the 15G and got the same results.
I placed the 30G back in my computer, booted with the instant cake CD, went to the command prompt and issued the command:
dd if=/dev/zero of=/dev/hdd (hdd was where the 30G drive was located in my pc)
I thought if I zeroed the drive out to a clean slate it might work. I'm not a linux person but I read that this was as close to a low level format as you can get.
I re-did the instant cake, installed and let it make it's calls in the Tivo and upon reboot after the software update was downloaded, It made it to the orange background/tivo-guy/this will take a while screen then stopped, rebooted, and went back to a constant gray reboot like before.
Is there a problem with using old series 1 tivo drives that appear fully functional on a series two machine? Nothing reports any errors when writing to either of the drives.
Any Ideas?? I'm not ready to retire this tivo. I always like the fact that it came with lifetime basic service so I could use it like a vcr or just to pause and rewind live tv.
Thanks in advance and sorry for babbling

,
Rick