Older Versions of Disk Manager Do Not Have XBIOS.OVL (77853)
The information in this article applies to:
• Microsoft MS-DOS operating system 5.0
This article was previously published under Q77853
Earlier versions of Ontrack Disk Manager do not contain the file
XBIOS.OVL. Earlier versions of Disk Manager contained the functions of
XBIOS.OVL within the DMDRVR.BIN file.
This information applies to Microsoft MS-DOS version 5.0.
When upgrading to MS-DOS 5.0 in accordance with section 2.4 of the
README.TXT file, README.TXT recommends you back up the current
DMDRVR.BIN and XBIOS.OVL files. However, there may not be a current
XBIOS.OVL file on the hard disk.
Earlier versions of Ontrack Disk Manager contained the necessary
information in the DMDRVR.BIN file. In these versions, there is no
When upgrading from these versions, simply backup the current
DMDRVR.BIN and then expand the new DMDRVR.BIN and XBIOS.OVL per
section 2.4 of the README.TXT file. XBIOS.OVL must reside in the root
directory. DMDRVR.BIN may reside anywhere on the drive as long as the
DEVICE statement in the CONFIG.SYS statement points to its location.
DMDRVR.BIN loads XBIOS.OVL when the hard disk drive is a nonstandard
drive and/or has more than 1024 cylinders. This driver is not required
for Disk Manager to work properly on standard and supported drives.
XBIOS.OVL became a separate file due to a growth in its information.
This was a result of the invention of IDE drives, the use of IRQ 14
for hard disk controller in AT systems, and an increase in the number
of unsupported drive types.
The product mentioned is manufactured independently of Microsoft; we
make no warranty, implied or otherwise, regarding this product's
performance or reliability.
Ontrack: (612) 937-2121
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