I would like to have a bootable usb external hdd of 500GB, with a one FAT32 partition. Is this possible?
Currently I have setup the drive with one primary FAT32 partition of 1GB and one extended partition with logical in it of 499GB. The system can boot MS-DOS from the first drive. This is the dos version which is delivered together with Windows 98 SE.
After booting I can do anything one the boot partition list directory contends, copy files.
When I change to the big partion and perform a listing of the drive with dir. The system gives a directory (corrupt) directory listing and hangs it self.
Does Dos of Windows 98 se support 500GB FAT32 partitions?
I would like to use fat32 in stead of ntfs, to prevent loading ntfs4dos device drivers.
OS limatations
Started by
cyberlink
, Jul 25 2008 09:32 AM
3 replies to this topic
#1
Posted 25 July 2008 - 09:32 AM
#2
Posted 25 July 2008 - 09:48 AM
There are a number of problems when going over the 48bit LBA barrier. (around 137 GB):
http://www.48bitlba.com/overview.htm
You need to browse/search on msfn.org, there are a number of related threads:
http://www.msfn.org/...98SE-ME-f8.html
http://www.msfn.org/...ojects-f91.html
and some fixes, both for "plain" DOS and for Windows 9x/Me.
However, multipartitioning the drive is advised nonetheless.
I'm moving this to the Windows 9x section.
jaclaz
http://www.48bitlba.com/overview.htm
You need to browse/search on msfn.org, there are a number of related threads:
http://www.msfn.org/...98SE-ME-f8.html
http://www.msfn.org/...ojects-f91.html
and some fixes, both for "plain" DOS and for Windows 9x/Me.
However, multipartitioning the drive is advised nonetheless.
I'm moving this to the Windows 9x section.
jaclaz
#3
Posted 25 July 2008 - 12:46 PM
jaclax,
Thank you for the information. I've done some quick research on the pages that you gave. It seems that it is not possible to have large disk support under MS-DOS.
Anyone,
Question 1:
Do you know why I can access a large NTFS partition from DOS. Is there some kind of a file system driver, which makes large disk supported under DOS?
Question 2:
Does Freedos support large partitions of 500GB or more? I booted from the Freedos live cd, but I was not able to change to the drive with the large partition on it. At that time there was only one partition of 500GB.
Cyberlink
Thank you for the information. I've done some quick research on the pages that you gave. It seems that it is not possible to have large disk support under MS-DOS.
Anyone,
Question 1:
Do you know why I can access a large NTFS partition from DOS. Is there some kind of a file system driver, which makes large disk supported under DOS?
Question 2:
Does Freedos support large partitions of 500GB or more? I booted from the Freedos live cd, but I was not able to change to the drive with the large partition on it. At that time there was only one partition of 500GB.
Cyberlink
#4
Posted 25 July 2008 - 02:08 PM
Well, I misunderstood your original request, I thought you were talking of Windows 98, but maybe it was too quick a search , there is also some reference on MSFN for "pure" DOS.
You NEED anyway to update IO.SYS, FDISK and SCANDISK, do read this thread:
http://www.msfn.org/...-1-t113142.html
And this page:
http://www.mdgx.com/secrets.htm
Try reading about xdma and udma:
http://www.ibiblio.o...files/dos/udma/
And qdma:
http://web.archive.o...t/dos/qdma.html
http://web.archive.o...t/dos/qdma.html
(abandoned AND deleted by the Author, after a quarrel with some of the FreeDos guys):
http://johnson.tmfc....dos/driver.html
Your mileage may vary, of course .
Moving this again (to DOS section).
jaclaz
You NEED anyway to update IO.SYS, FDISK and SCANDISK, do read this thread:
http://www.msfn.org/...-1-t113142.html
And this page:
http://www.mdgx.com/secrets.htm
Try reading about xdma and udma:
http://www.ibiblio.o...files/dos/udma/
And qdma:
http://web.archive.o...t/dos/qdma.html
http://web.archive.o...t/dos/qdma.html
(abandoned AND deleted by the Author, after a quarrel with some of the FreeDos guys):
http://johnson.tmfc....dos/driver.html
Your mileage may vary, of course .
Moving this again (to DOS section).
jaclaz
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