While the first MS-DOS 4.0x 3.5" disk is labelled "Setup" the installer will actually refer to it as "INSTALL". When you cycle through them one by one, once you reach the end, you will simply go back to the first. If you loose tray, go to the Drive menu, select A and select 'Drive Information' and you can see which disk is currently active. It is important that you keep track of the order of the disks that you specify on the BOOT line, as you will need to switch between them using either a keyboard shortcut or the "Swap floppy" option on the DOSBox-X menu bar located under the DOS heading. This is a special way of telling DOSBox-X to treat that disk image as read-only. You may also notice that the original install disks have been pre-fixed with a column (:) character. This is not an error, and is done to simplify the installation process due to the fact that the installation process will ask for you to swap between those disks. You may notice in the above BOOT command, that SETUP.IMG and SELECT_COPY.IMG appear twice. The solution is to exit to the command line and manually format the C: drive. And if you manually SYS the drive, it will not boot from it. The DOS 4.0x installer will not offer the option to install to the HDD. The solution, assuming you’re only going to have a single primary partition, is to create an HDD image no larger than 2014MB.ĭOS 4.0x supports the "type 6" FAT16 partition which DOSBox-X’s IMGMAKE creates, but is incompatible with the way the partition is formatted. But creating partitions that large will result in numerous problems, typically in FORMAT giving a "Divide overflow" error. It is also supposed to support a primary partition up to 2,047MB and a logical partition of 2,048MB. As such it is recommended to only create a single DOS partition per disk image, and if you need more space to create more disk images.ĭOS 4.0x supports HDDs up to 4,095MB. But when you IMGMOUNT the image in DOSBox-X, the integrated DOS will only be able to access the primary partition. You can create them, and when you boot your DOS image, you can access them. However, DOSBox-X has only limited support for extended and logical partitions. Like DOS 3.3 before it, DOS 4.0x supports primary, extended and logical partitions. For example: z:mount c c:\games z:imgmount d c:\cdgame.iso -t iso. You need to either keep Z:\ in the PATH or specify the drive letter explicitly when running them. How to configure DOSBox to automatically mount the virtual hard drive when its launched. In addition, the installation process will require BLANK diskette named "Select Copy" The mount and imgmount commands exist on the virtual Z: drive within DOSBox. MS-DOS OEM versions could have additional disks such as a Diagnostic disk.
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