Acronis os selector 8.0 User Manual

 

 

 

Acronis OS Selector supports the following versions of DOS-type operating 
systems: 

•  MS-DOS 5.x–6.x; 
•  MS-DOS 7.0 (not a separate product but is included in Windows 95); 
•  MS-DOS 7.1 (not a separate product but is included in Windows 

95OSR2/98); 

•  MS-DOS 8.0 (not a separate product but is included in Windows ME); 
•  PC-DOS 5.x–7.0; 
•  DR-DOS 7.x. 

 

Acronis OS Selector will detect MS-DOS 7.x/8.0 as a separate operating system only 

if it is not a part of the installed Windows operating system but was instead installed 
on your computer with help of the SYS command. 

Acronis OS Selector recognizes the following special cases: 

•  MS-DOS 5.x–6.x or PC-DOS that has Windows 95/98/ME installed over it. 
•  MS-DOS or PC-DOS that has Windows NT/2000 installed over it. 

 

Acronis OS Selector may not support some DOS versions (for example the Japanese 
version). In these cases, system and configuration file lists should be edited (for 

example, font files should be added) to avoid conflicts between different copies of 

these operating systems. 

DOS boot sequence consists of the following stages: 

1.  Boot sector (after being loaded into memory and passed control to) 

scans the root folder for the first DOS file. Upon finding one, it loads the 
first several sectors (the loader) into memory, assuming that they are 
positioned contiguously on the disk, and passes control to the loader. 

2.  The loader loads the rest of the first file (boot manager) into memory 

and starts it. 

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