Re: Filesystem creation

Riley Williams
2002-05-13T17:36:41Z

Hi Dan.

>> When it comes to hard drives, there's no such thing as a "plain XT".
>> From experience, I've seen XT's with MFM, RLL, ESDI, (E)IDE and SCSI
>> hard drives, and as the original XT didn't even have a hard drive
>> interface, it's anybody's guess which is fitted.

> Actually I think they came standard with a 10 meg full height MFM
> drive. The origional PC didn't come with a hard drive, and some
> without floppies.

To be accurate...

1. The original IBM PC was supplied with a CASSETTE drive as
standard. 160k floppies were a very expensive optional extra
as you had to buy not only the drive, but also an interface
card and an operating system to boot from them, all sold as
separate items. Hard drives were NOT supported, and it was
not possible to add support for them as the BIOS didn't have
the ability to hook extensions in.

2. The original IBM PC/XT was supplied with a "new upgraded" 180k
floppy drive as standard, and as an option, these could be
replaced with a 360k drive for an extra £275. I remember paying
the extra when this wmachine was top of the range.

3. The "Revised" IBM PC/XT was supplied with dual 360k floppies
as standard, and one of them could be replaced with an MFM
hard drive - originally 5M in capacity, but those were replaced
with 10M ones within a month, and the MFM interface was replaced
with an RLL one about a month later to increase the capacity.

4. The IBM PC/AT was supplied with a 20M hard drive as standard,
as well as the 286 processor and various other "standard extras"
as IBM referred to them.

>> I've just had a look on IBM's website, and the Model 30 reference
>> diskette is for a 286 based system. I know that some of the PS/2
>> range were available with different processor options, and it's more
>> than possible that the Model 30 is one such, but there's precious
>> little about that machine on their website, so that didn't help.

> I've got an 8086 based PS/2, a 25 I believe.

That agrees with IBM's website.

> It was a while ago, but I had trouble with ELKS when I last tried it
> on that machines, the keyboard wouldn't work.

If you still have it handy, could you try the latest images out and see
whether it works now. If not, would you be willing to help explore why
it doesn't work so we can fix the problem?

Best wishes from Riley.

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