China DOS Union

The settings in menu.lst are as follows:
find --set-root /1.iso
map /1.iso (hd32)
map --hook
chainloader (hd32)
boot

The ERROR prompt appears:
File for drive emulation must be in one contiguous disk area

The grldr is the version of 2009-03-07, the size of the CD image file is about 790M, and the physical memory is 512M. Is the error caused by the physical memory being smaller than the image file?

Asking experts for help, thanks

Another question: What is the difference between `map --mem /1.iso (hd32)` and `map /1.iso (hd32)`? Does the former copy the entire image file to physical memory?

After testing, I know where the error comes from.

Using the map --mem command is fine, provided that the ISO file is smaller than the size of the physical memory.

Using contig to organize this ISO file can make it boot without the --mem parameter. That is, to make this ISO file be stored continuously.

Originally posted by chenall at 2009-3-19 03:47:
Use contig to defragment this ISO file, and then you can boot without the --mem parameter.
That is, make this ISO file be stored continuously.

Please advise: How to use contig? Can you write an example? Thanks!

contig is a program

contig is a program. Directly use the command line
contig.exe the file to be defragmented

Or drag the file to be defragmented onto the contif.exe icon.

This command can be used to boot in, but the CD-ROM cannot be found during the execution process.

Learning