This value can be reduced to get additional space on disk or increased up to to reserve for space for files in the root directory. This option does not affect any of your subdirectories. Subdirectories are dynamically allocated. You only have to determine the size of root directory. Legal values for disks with 1 sector per cluster are 16, 32, 48, Example: You need a disk that will not have more than 40 files in the root directory.
You will get a disk with 48 root directory entries and you have more space for data. The standard IBM kB format has root directory entries. It will work fine. If you override this value, this has no effect under DOS 3. But you may not be able to read the disk under DOS 3.
The R option skips verifying each track after it has been formatted. The disadvantage is that errors on the diskette are not detected. The K option suppresses the message "Insert new disk in drive The exit codes are:. The S option lets you format a system disk. COM to your disk. Thus you must make sure, that SYS. It was provided for compatibility with earlier versions.
This option writes a volume label to your disk. This will prompt you for a volume label. This will write the name to your disk. This is a bit difficult to explain. Imagine a standard kB disk. It has 9 sectors on each track numbered 1 to 9. Normally the sectors on all tracks ordered "1 2 3 4 5 6 7 8 9". You can easily imagine, that it takes a little time, when your diskette drive head steps from one track to another. But your diskette continues rotating.
Without sector sliding your diskette is positioned to sector 2 or 3 on the next track, when the stepping is done. It needs nearly a full revolution until sector 1 of the next track can be read. With sector sliding of 1 or 2 your diskette is positioned exactly on sector 1, when it starts reading again. The DOS-Format program always formats with sector sliding 0. Now, how to determine the correct value for sector sliding.
You to experiment with your configuration, which value is optimal for you. CFG file described later. You have to find out this for each format seperately. Always good choices are the following:.
This option is used to reformat a diskette. This is useful, when you have diskette, that is still readable, but only with several retries.
This is often the case, if you try to read a kB Diskette in a kB drive, that was written in an 1. If you choose this option, no modifications are made to diskette. If you e. The diskette will be read in track by track. Then the track will be reformatted and the data is written back to the diskette. It is safe to press Ctrl-Break during format without erase, because the exit-request is notified, when you press Ctrl-Break, but performed, when the current track is completely written.
So use this option only, if you encounter problems without it. CFG file descrived later. The I option changes the Interleave factor for diskette format.
Normally the best interleave is 1, thus it takes only 1 revolution to read an entire track. But there are 2 exceptions to it. You need an interleave of 2 in these cases, because a data sector is used as GAP. If you do not use an interleave of at least 2, the disk will become unreadable. However you can set your interleave whatever you like, but the only effect is, that your disk becomes slower.
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