nfg.forums

NFG Forums => SIG PC-98 => Topic started by: Sebiohazard on November 23, 2019, 11:14:51 PM

Title: NEC PC-9801 - How to partition & format an HDD ?
Post by: Sebiohazard on November 23, 2019, 11:14:51 PM
Hello everyone !

Today I start the emulation of the NEC PC-9801 but unfortunately I can not install a game on the HDD of this machine...

1. First of all I would like to partition & format this HDD. I am using MS-DOS 6.2 but I can not find the FDISK utility on the DOS diskette (see image below)

(https://pix.tdct.org/upload/original/1574511424.jpg)

How to initialize this damn HDD in order to install the game I want to emulate ?

Thanks best regards !
Title: Re: NEC PC-9801 - How to partition & format an HDD ?
Post by: Sebiohazard on November 26, 2019, 05:24:42 PM
I am on a forum specialized on the NEC PC-9801 & nobody can answer me ?!
Title: Re: NEC PC-9801 - How to partition & format an HDD ?
Post by: Sebiohazard on December 02, 2019, 12:35:58 AM
185 views & no answers ???

It's anything...
Title: Re: NEC PC-9801 - How to partition & format an HDD ?
Post by: JulBS0 on December 02, 2019, 03:22:23 AM
Hi,

If you are not fluent in Japanese, I recommend you to check if your game is in the YAHDI disk image (https://nfggames.com/forum2/index.php?topic=5463.0), as it will surely save you a lot of time.

Anyway, if you want to take the difficult path, here we go. You seem to have the same boot disk than me, which will only allow you format the disk, not to perform a full-fledged DOS installation.

Partitioning on the PC-9801 differs quite a bit from IBM PCs MS-DOS partitioning.
There is no FDISK utility for the PC98s, everything is handled through the FORMAT command.

If you're like me and you don't read kanjis... it's going to be a bit painful.

Launch FORMAT.exe in the hard disk mode by running format /h, either from FILMTN or directly from the DOS prompt.
You'll be welcomed by the main menu.

main_menu.png

Use the vertical arrow keys to scroll through options, and horizontal keys to change its value. Albeit intimidating, the functions are rather simple:


Wipe the drive using the sixth option. Use the leftmost entry to have a blank drive, then confirm the formatting. A progress bar will be shown.

After this, go back to main menu with the Enter key, and proceed to create a partition. You'll see something similar to this:

volume_config.png

The first option sets the partition size in megabytes. By default, it will use the whole disk.
The second option sets the start cylinder of the partition. You can leave 1.
The システム option sets whether FORMAT needs to copy the system files. If I use this, FORMAT locks. Use the 耘送しない value.
ボリュームラベル defines the volume label, which is optional.
Use the bottom menu item to perform the partition creation and formatting.

You now a have a formatted C: drive, immediately avaible, but you won't be able to boot from it.
If you want to, perform the following operations:

Go to the Partition Flags screen, and ensure that the freshly created partition is marked as Active (アクティブ) and Bootable (sixth column value is 可), like this:

partition_settings.png

Modifications on this screen are instantly written to disk, just set the values and press Escape.

We can now proceed to copying the DOS startup files. Exit from FORMAT, and run the SYS command like this: SYS.exe C:

Congratulations, you have a minimal DOS installation on your hard disk! You'll have to wrestle with AUTOEXEC.bat and CONFIG.sys to have something that supports extended memory and everything else.

Quick tip: if there are no floppies inserted when you start the computer, the startup hard disk volume will have be A:, and floppy drives will be B: and C: letters.