This article describes how to create a USB boot 'disk' using FreeDOS. A DOS bootable USB stick still comes in handy for various maintenance tasks, but creating a DOS bootable USB 'disk' is not always very straightforward.
How can I attach in FreeDOS, if installing other forces is even probable? If it is which forms of media can become mounted and which ones can'testosterone levels.
HanlonHanlon
![Commands Commands](https://cdn-sysprobs.netdna-ssl.com/wp-content/uploads/2014/06/boot-disk-in-rufus.png)
1 Response
What document systems are backed?
FAT32 can be fully supported and is certainly the desired file format for the shoe drive.
Depending on the BIOS used, up to four LBA (Logical block out addressing) difficult disks up to 128 Gigabyte, or 2 TB, in size are usually supported.38 There has become little screening with large disks, and some BIOSes assistance LBA but produce mistakes on disks larger than 32 GB; a car owner such as OnTrack or EZ-Drive curbs this problem.
FreeDOS can also be utilized with a drivers called LFNDOS to allow assistance for Home windows 95-style long document names, but most old programs before Win95 do not support LFNs also with drivers packed unless they have got been recompiled.
There can be no planned support for NTFS, ext2 or exFAT, but there are several exterior third-party drivers available for that purpose. To gain access to ext2fs, LTOOLS (equal to Mtools) can sometimes be utilized to copy data to and from ext2fs memory sticks.
Resource FreeDOS
Compact disks and USBs can be what I'm really interested in
Freedos facilitates CR ROM drives making use of
xcdrom.sys
XCDROM.SYS
is certainly an UDMA and non-UDMA CD-ROM car owner for DOS.XCDROM.SYS
offers to become packed inCONFIG.SYS
/FDCONFIG.SYS
. When FreeDOS is definitely already running, you can loadXCDROM.SYS
later withDEVLOAD
Resource Command: xcdrom.sys
There are DOS USB motorists accessible, for instance at 2 USB Motorists.
I've no idea whether they work with FreeDOS.
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If you have a DOS utility such as a BIOS Adobe flash tool or little DOS-based analysis.exe file, you can test making use of the Y2B FreeDOS bootable picture.
This picture includes an NTFS drivers and so you can straight access data files on a FAT32 or NTFS At the2B travel.
Simply copy on your DOS files to a brand-new folder on the Y2B USB drive, shoe to At the2B FreeDOS floppy image (notice screenshot above) from the 2 Menus and run the 2 system!
The user can change the keyboard kind, by keying in keyb UK, etc. type keyb /T for a listing of countries (Elizabeth2B v1.A5+).
To change to a different folder on your Age2B USB push (e.gary the gadget guy. MyDOS - use names of much less than 9 figures and 8.3 filenames)
1. Boot to At the2B
2. Go to the2 menusand operate 'FreeDOS (fróm a floppy image)'.
cd MyDOS
4. Type the title of your.exe or.com or.bat file to run it - y.g. FLASHUPD
Push A new: will become the floppy disk image drive notice and Drive Chemical: or Chemical: or At the:, etc. will be the Age2B USB commute letter. If you have internal devices with FAT or NTFS partitions, they will furthermore be provided drive letters.
IMP0RTANT: The DOS NTFS driver is buggy and I highly recommend that youperform not make use of it for creating NTFS files or writing documents to an NTFS commute(perform not compose to the NTFS Y2B USB drive).
Yóu should just use it to operate files from an NTFS push or to copy documentsfroman NTFS commute to the A: travel or various other FAT32 forces.
If you compose new files to an NTFS travel, it may damaged the existing data files!
If yóur energy runs from a.softball bat batch file, you may need to edit the group file first (or duplicate your documents to the root of the Elizabeth2B USB get).
If your DOS utility reviews that there can be not sufficient memory accessible, attempt a different boot construction from the menus, or generate your own bootable.ima or even.img floppy disk image which does not download the large NTFS car owner and duplicate your documents into the.ima picture.
Records: E2B v.1.98+ offers increased standard memory available, supports DPMI (EMM386 storage manager), will be now a 7.6MB FAT32 floppy and a lot a mouse driver. Age2B v1.A5+ includes a KEYB energy to modify keyboard type (at the.gary the gadget guy. KEYB FR).
Records: E2B v.1.98+ offers increased standard memory available, supports DPMI (EMM386 storage manager), will be now a 7.6MB FAT32 floppy and a lot a mouse driver. Age2B v1.A5+ includes a KEYB energy to modify keyboard type (at the.gary the gadget guy. KEYB FR).
See RMPrepUSB 2 tutorial here for even more details and the RMPrepUSB WinImage guide here.
Anothér FreeDOS v1.2 floppy disk picture can be downloaded from here.
How to adjust the Age2B floppy image
At the2B v1.98+ includes a 7.6MB Body fat32 disk picture (it will be not a 1.44MM floppy picture any even more!). It a good deal EMM386, a mouse car owner and an NTFS driver.
It allows you to operate programs directly from the At the2B get as D: or D: or E:, etc. (FAT32 or NTFS, but not exFAT runs).
If you would like to include programs directly to the E2B floppy disk picture or improve it in some other ways, here is how to perform it.
1. Download and install WinImage (test version - please purchase a licence if you discover it useful)
2. Use 7zip to extract FreeDOS288.imother from the ISODOSMNUFreedos288.imother.gz document
3. Duplicate the extracted Freedos288.ima file to ISODOS foIder
4. Double-click the Freedos288.ima document to fill it in Winlmage
5. Drag-and-drop your DOS documents into WinImage to include them to the picture
6. Modify the Autoexec.softball bat document in the picture if required (remove it, alter it, copy it back again)
7. Click on the glowing blue floppy disk icon in WinImage to save the changes
Right now you can boot to the Freedos288.imother document from the 2 Elizabeth2B menus.
Title the floppy image file mainly because.imarwif you want to maintain any adjustments you may create within FreeD0S.
Yóu can use 7zip to reduce the.ima file to a.ima.gz file.
Boot from Floppy Cd disk Image Files
If you are usually offered with a bootabIe floppy disk picture file, Elizabeth2B can straight shoe tó it.
lf you make use of the.IMAor even.IMGfile expansion, the document will become loaded into memory and will shoe as Get A:
If you modify any files on the A: RAM-drive whiIst booted to DOS, no changes will end up being stored.
![Freedos Disk Size Freedos Disk Size](http://wiki.freedos.org/wiki/images/5/55/VirtualBox-InstallGuest3.png)
If you wish to be capable to completely change files in the image under 2, use a.imarwdocument extension.
If you make use of a.imanousbfile extension, the image will show up as A:, the USB drive as floppy push T: (and not really as a difficult disk).
Use.imafdhdd0if you only want the inner difficult disk ás hd0 and thé picture file as fd0 (writabIe).
Discover the file extensions list for additional opportunities.
Discover the RMPrepUSB guide for more options right here.
DOS restrictions
- 2 6 can just gain access to lt;2GT partitions (Body fat16).
- DOS 7.1 or later is needed to gain access to Fats32 dividers.
- DOSFreeDOS cannot entry NTFS partitions unless a particular NTFS drivers is included.
- Files with long file names (much longer than 8.3) may not really be listed correctly unless you fill a LFN car owner. Use 8.3 standard short filenames with no areas.
Find here for more details on limitations of variations of DOS.
Using an.imgPTN file
An easy method to make and improve your personal DOS-bootable image is to produce a Body fat32.imgPTN file.
This allows direct gain access to to the 2 documents without needing to create a.ima or.img file.
You can just copy your 2 data files onto the drive and edit them as required.
You can just copy your 2 data files onto the drive and edit them as required.
A réady-made 38MB FAT32.imgPTN (FreeDosFAT3238MM.imgPTN.zip) is obtainable from the Alternative Download Places.
It will not consist of an NTFS car owner and so can just access Excess fat partitions but can shoe as fIoppy disk 0, or difficult disk 0 or 1.
Switch to the.imgPTN and after that include your own DOS data files to the picture (just copy data files to the USB push).
To make your personal.imgPTN file.
1. Find a suitable MS-DOS 7 or 8 or FreeDOS floppy disk picture or zip file or set of 2 boot documents.
2. Draw out/copy the documents to an clear new folder (y.h.MyDos) on your Windows Desktop.
3. Drag-and-drop the new folder (MyDos) ónto the MPIFAT32 Desktop computer shortcut (you must set up the MPI Tool Kit first).
4. Duplicate the 38MM.imgPTN document that this makes to your Elizabeth2B runs ISODOS folder.
5. Run MAKETHISDRIVECONTIGUOUS.cmd from the Y2B push.
6. Now either MBR-boot to Y2B and select the brand-new.imgPTN file or make use of ISOSWITCHE2B.exe to change it in.
7. The E2B USB push will now show up as a 38MT FAT32 volume. You can straight change the documents on it or modify any of the documents.
Yóu can test it by using RMPrepUSB - N11 (QEMU) to boot to it (or make use of Virtual Box+VMUB).
To bring back the At the2B push, run at the2bSWITCHE2B.exe - Restore At the2B Partition(s i9000), or MBR shoe from the USB push and select menu product 0.
Tip: name the document with a.imgPTNAUTO document extension to avoid the 'Alright to change' consumer prompt.
Include you own personal DOS data files to a réady-made.imgPTN document
- Duplicate the Body fat32.imgPTN document to ISODOS foIder
- Work MAKETHISDRIVECONTIGUOUS.cmd
- Boot to Elizabeth2B and select the.imgPTN file from the 2 menu or make use of SWITCHE2B.exe (SWITCHE2W does not really work properly with FAT16.imgPTN data files)
- You can today add documents and improve the material of the partition making use of Explorer. FDAUTO.softball bat or AUTOEXEC.Softball bat will operate on startup ánd you can include the resources title at the end of the group file therefore that it will automatically operate.
- Shoe to the Y2B USB drive and make use of Menu choice 0 to come back to the E2B menu system (or make use of SWITCHE2M.exe)
How tó reduce the size of a.imgPTN document
Thé smallest size wé can create using regular Windows utilities for a Body fat32 quantity is usually approx. 38MB.
If you have small DOS programs, you can decrease the size of the 38MB.imgPTN document as follows (shift text in strong as required).
1. Open the.imgPTN file that you want to copy (y.h. FreeDosFAT3238MM.imgPTN.zip)using 7zip and determine the complete size required by sellecting all documents (usually approx 6MW)
2. Open up Windows Handle Panel and operate ImDisk - Position New - Image file = C:tempMyNew .imgptn - Size of virtual disk =10MB - Okay
This will produce a brand-new drive notice for you - y.g. O:
3. Select the fresh travel in Explorer (y.gary the gadget guy. O:) and enable Explorer to file format it asFATwhich is actually Fats16 (not really NTFS).
4. Use Herb in 7zip to copy all the data files to the brand-new drive notice (age.h. 0:)
5. You can now directly edit any of the data files on the fresh virtual commute
6. In Imdisk, useGet rid ofto unmount the digital drive (wait for 30 secs after burning files initial)
7. (elective) Make use of 7zip to confirm that the contents of the brand-new MyNew.imgptn document are present and proper.
Tip: You can remove the clover and efi folders to reduce the size required. Do not delete the PBR.rubbish bin, boot6 document or menu.lst of grldr documents or the elizabeth2b folder.
Note that the most recent SwitchE2N.exe will work with Body fat16.imgPTN documents if you choose a FAT32 0x0c partition type when prompted.
A réady-made 10MW FAT16.imgPTN file is also obtainable in the Alternative Downloads Places.