It is somehow aesthetically pleasing to have IBM PC DOS running natively on modern hardware that still has IBM branding. I have it running inside VirtualBox, and booting natively on the bare metal of a Lenovo Thinkpad X200. After booting the system, another system can easily be selected with fdisk. Normally, the validity of the boot sector of this partition is also checked. I have done this and can confirm that it works and works well. If the MBR contains generic boot code, the system to boot can be determined by means of just one primary partition that is marked as active or bootable. I am reluctant to link to sources for this, as it is still copyright code. To make a complete OS from this, you need a full copy of PC DOS 2000, then replace some of its files with the updated ones from the SGTK, as detailed above. For 7.1, IBM only updated the kernel and some core tools. Unfortunately, in this way it resembles DR's versions of DR-DOS 7.04 and later, which consists only of boot files embedded into the startup diskettes for products such as Seagate Disk Manager and Powerquest PartitionMagic.
Dos 7.1 boot disk install#
Here is at least one method to install it in VirtualBox. Windows, minimum requirement: Windows Vista, Windows Server 2008 and above. Update The SYS command included with PC-DOS 7.1 doesnt support v7.1, so youll have to FDISK /MBR and copy the system files over manually. Rebooted from a PC-DOS 7.1 disk, copied over the three system files to C:, then the rest of PC-DOS 7.1. Select your operating system to download the latest version of TestDisk & PhotoRec data recovery tools. However, its FDISK /MBR does not appear to support PC-DOS 7.1. You may have to hunt - the ServerGuide toolkit is quite old now. For more information, read the 7.1 release notes and git history.
Dos 7.1 boot disk how to#
Here is how to get PC DOS 7.1, which IBM makes available as a free download. Back in the days when floppy disks were still being. The primary author, Vernon Brooks, has a site which details the development history and itemises his fixes. Boot Disk Dos Create Ms Dos Bootable Cd Ms Dos Boot Cd Iso Download. Here's some more information (in Spanish but Google translates it fine.)
It fixes a lot of bugs in the DOS codebase. It supports LBA hard disks, meaning it can handle volumes of over 8GB. It supports FAT32, including the ability to boot from them. It's based off the same core as the embedded DOS in Windows 95B (OSR2) and Windows 98. PC DOS 7.01 is a modest bug-fix for MS-DOS 6.22, but with a bunch of Microsoft tools removed and replaced with IBM equivalents – so it has IBM's E editor instead of EDIT.EXE, Rexx instead of QBASIC, IBM antivirus and so on. PC DOS 7.1 is often confused with 7.01, also known as PC DOS 2000. I mentioned this in my post about DR-DOS. PC DOS 7.1 is the last version of the original Microsoft product line that started with MS-DOS 1 (itself now open source.)