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iPod video - Disk mode fails, sector size problem. PLEASE help!

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TexasRockbox:
Just inquiring: could it be a Toshiba MK8022GAA 1.8" CE ATA-4 (the iPod Classic uses a similar (same?) drive) that would make it like the Toshiba 240GB drive which is ATA-4 as well and it needs the LBA, 4096, etc.

I inquire because I see the word "building".  Have any paperwork for the drive or where it was bought from?

torne:
Does that drive really require 4096 byte accesses, or does it work if you just remove the emulation support?

torne:
I have released a test build which should hopefully work for people with upgraded/replaced drives regardless of disk size or sector size: http://forums.rockbox.org/index.php?topic=24439.0

Please test it, as if it works, this code can be committed to svn and you won't need a custom build any more.

eltonart:
Hi guys, thanks for all your answers and info. I still cant get into disk mode after a lot of stuffing around. I ordered a USB to ZIF adapter on ebay for $5 so I can try deleting everything off the disk to see if it lets me restore in i-tunes. Fingers crossed.

Does anyone know how to confirm the amount of RAM on a logic-board? I originally had a 30Gb board (32Mb RAM) and I ordered an 80Gb board (64Mb RAM) as a replacement but I want to confirm in case I was given the wrong one - maybe that could be related to my problem. The actual chip looks like its 256Mb but perhaps only 64Mb can be used???

TexasRockbox:
I'm using Samsung model HS081HA (80Gb, 5mm) which seems to be on the list. I have used this exact same hard-drive before with Rockbox working (using custom build with modified sector size).

Arj:
I think I tried plugging in with hold switch on but I'll test again to be sure.

Torne:
Thanks for the suggestions and test-build for large drives. In my previous Ipod with the Samsung HS081HA drive and custom build with modified sector size, I noticed that the file transfer was very slow so maybe removing the emulation support will fix that. I'll give it a try once I can get into disk mode!

soap:

--- Quote from: eltonart on April 12, 2010, 02:09:55 AM ---Does anyone know how to confirm the amount of RAM on a logic-board? I originally had a 30Gb board (32Mb RAM) and I ordered an 80Gb board (64Mb RAM) as a replacement but I want to confirm in case I was given the wrong one - maybe that could be related to my problem. The actual chip looks like its 256Mb but perhaps only 64Mb can be used???

--- End quote ---
A - If there is a question whether this is related to your problem,why don't you just test the 32 MB build vs the 64 MB build?

B - iPod Video boards have 32 or 64 MB of memory on them.
It is possible if not likely you have correctly identified a 256 Mb part, as that would be 32 MB.
You would not be the first one to complain of having purchased a 60/80 GB iPod's mainboard from one of the part dealers only to receive the 30 GB model.

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