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What should I download to get MS DOS 6.22
This depends on your preferred language. Assuming "English" I recommend "Microsoft MS-DOS 6.22 Plus Enhanced Tools (3.5-1.44mb)", while all "Upgrade" versions require an already installed MS-DOS on your (real or virtual) hard disk.
With a trick you may fool the "Upgrade" versions which usually do not allow you to install it on a blank HDD. For this you have to press and hold the "Shift" key on your keyboard while booting from the first floppy. Next step is "fdisk" to create a primary partition (if your HDD is complete empty), which requires a reboot afterwards. Keep the first floppy in the drive and boot while holding "Shift" again. Then run "sys c:" (without the quotes) from the command prompt and boot again from the first floppy, but this time WITHOUT pressing "Shift". Voila, the Setup will do the job now.
From MS-DOS 6 upgrade (6.0 / 6.2 / 6.21 / 6.22) it is possible to installed on blanked HDD drive.
But you should make partition and make system boot from HDD that MSCdebug said.
(If not SETUP.EXE reguse to install MS-DOS Upgrade on HDD)
I added install processing as screenshot.
The 5.25 and 3.5 installation disks give me files with extensions like COMMAND.CO_ instead of COMMAND.COM when I extract them from the image. Is this my fault?
That is Not related with MS-DOS 6.22 but upgrade version of MS-DOS (or IBM PC-DOS) 5.xx
Previous DOS should be installed (DOS 2.11 or higher) to install upgrade version of it.
So please do Not discuss on this thread but make another thread.
The problem is that I wasn't using the upgrade versions.
Is there MS-DOS 6.22 Turkish version?
Believe it or not, there is a way to upgrade from MS-DOS 5 to 6.22 using 1 CD and 4 floppy disks. Use three floppy disks to setup MS-DOS 5 and the Windows 98 First Edition Bootdisk to copy MSCDEX.EXE and OAKCDROM.SYS to the hard drive, then using edit, change the autoexec.bat to load the mscdex.exe on the hard drive and config.sys to load oakcdrom.sys to read the IDE CD drive in either Virtualbox or VMware Workstation (Fusion for Mac). After those are working, extract the files from the upgrade 6.22 floppies to a folder and put the files of the folder in an ISO and voila. You can upgrade to DOS 6.22 from a CD.
If I wanted to run DOS on a new computer (not DOS box, straight up MS-DOS) how would I burn the ISO files? Windows 10 says the image files are not valid when i attempt to burn them to dvds (it was the only optical media i had) will the ISOs only burn to Floppy?
All versions of DOS (MS-DOS, PC-DOS, DR-DOS, etc) could be only and exclusively be installed from floppies, never from CDs.
That being said it does not mean you couldn't put MS-DOS on a new system without floppy. Heck, it's even possible to do that using external USB CD if you system's BIOS supports that!
You would need to install MS-DOS on virtual system from virtual floppies first, but then you could make bootable CD (with MS-DOS and CD drivers) and transfer your DOS installation to the desired system (because, practically speaking, MS-DOS setup only unpacks files and puts them into "C:\DOS" directory). You could use "fdisk" and "sys" commands to make your HDD bootable, then just copy that directory from one computer to another. There are some DOSSHELL related games, though: https://jeffpar.github.io/kbarchive/kb/077/Q77624/
But all that requires deep understanding of DOS, floppies, CDs and so on... which kinda creates "chicken and egg" problem.
I would recommend to play with PCem for a bit (there you could have floppies of various sizes easily) and practice the whole installation procedure there (without wasting tons of CDs) before going to real vintage computer...
If you want to upgrade MS-DOS but only have a OEM version ready, you will receive an error message that you may not use this version to upgrade an existing installation.
Do the following:
1. Boot from the MS-DOS OEM diskette.
2. Exit the Setup program, you'll end up on command line at drive A:.
3. Do sys c: from here to overwrite the previous hidden DOS system files on harddisk with those from your newer OEM version.
4. Launch setup again and install. The Setup program now assumes you want to reinstall DOS, which of course is allowed.