New Amiga toy

Jules Richardson julesrichardsonuk at yahoo.co.uk
Sat Dec 3 13:26:01 CST 2005


Witchy wrote:
> On Sat, December 3, 2005 12:49 am, Jules Richardson said:
>> You'll *probably* find that a larger capacity drive will accept the dd
>> image
> 
> It's the other way round - 2.5gb down to 2.1 though obviously the present
> disk is nowhere near full.

But for a sane system you *should* be able to take the dd image and put it 
back on a larger capacity drive in the Amiga, and everything should just work.

Possible exceptions:

1) Any hardware that supports some kind of "put this x blocks from the *end* 
of the disk" is obviously going to fail, because the end of the disk won't be 
where it used to be. I don't know of anything nuts enough to actually do this :)

2) If partition table settings are specified in terms of cyls/heads/sectors, 
rather than block lengths / offsets from the start of the drive, you're likely 
going to have problems. No idea how Amiga disk ystems work, so I don't know if 
it's an issue or not.

Presumably the partition table / filesystem format is well-documented though, 
so even if (2) is a problem, you could chop a raw dd archive of the failing 
disk up into chunks of partition data, and write those out along with an 
appropriate revised partition table to the 'new' disk.

>> What sort of SCSI interface does it expect on the drive (narrow / wide /
>> SCA)?
> 
> IDE :)

Ahh, no spare drives here then. Generally, I don't 'do' IDE. Took me well over 
a year to find a replacement IDE disk for my RiscPC (that was around 2.5GB too)

cheers

J.



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