YDL 2.3 iMac Rev A - can't boot - HELP!!

[yellowdog-newbie@lists.terrasoftsolutions.com]

Ok. Follow your instructions:

1. Boot from YDL CD. When asked about keyboard, pressed ctr-alt-F2.

2. Get "Dayton Install>" prompt.

3. Typed pdisk /dev/hda

4. Get message:
sh: pdisk: command not found.

Looking in a unix book (Complete Idiot's Guide) found "sh" stand for The Bourne Shell.
I then typed "env" as I understood from the book it will give me the environment variables, 
but get the following:

sh: env: command not found

Any clue? 
Gustavo
>From: dhiraj.2.bhuyan@bt.com
>To: yellowdog-newbie@lists.terrasoftsolutions.com
>Subject: RE: YDL 2.3 iMac Rev A - can't boot - HELP!!
>Date: Thu, 14 Aug 2003 09:34:49 +0100
>Reply-To: yellowdog-newbie@lists.terrasoftsolutions.com
>
>When you press ctrl+alt+F2 you get the "Dayton Install>" prompt if you are
>using the YDL 2.3 Installer. If you are using YDL 3.0 you get the "bash#"
>prompt. So you should do the following -
>
>Dayton Install> pdisk /dev/hda
>
>(you don't tyle the "Dayton Install>" - that's the command prompt!). Then
>type "p" to get the partition table.
>