| DISKCOPY |
|
| Copies the entire contents of one floppy disk to another floppy disk. |
| DISKCOPY writes over the existing contents of the destination disk as it |
| copies the new information to it. |
|
| This command determines the number of sides to copy based on the source |
| drive and disk. |
|
| Syntax |
|
| DISKCOPY [drive1: [drive2:]] [/1] [/V] [/M] |
|
| Parameters |
|
| drive1: |
| Specifies the drive containing the source disk. |
|
| drive2: |
| Specifies the drive containing the destination disk. |
|
| Switches |
|
| /1 |
| Copies only the first side of a disk. |
|
| /V |
| Verifies that the information is copied correctly. Use of this switch |
| slows the copying process. |
|
| /M |
| Forces DISKCOPY to use only conventional memory for interim storage. By |
| default, DISKCOPY uses your hard disk as an interim storage area so you |
| don't have to swap floppy disks. |
|
| Related Commands |
|
| For information about copying one or more files, see the COPY command. |
|
| For information about copying directories and subdirectories, see the |
| XCOPY command. |
|
| For information about comparing two disks to see if they are identical, see |
| the DISKCOMP command. |
|
|
| DISKCOPY--Notes |
|
| Invalid drive for DISKCOPY |
|
| The DISKCOPY command works only with uncompressed removable disks, such as |
| floppy disks. You cannot use DISKCOPY with a hard disk or a network drive. |
| If you specify a hard disk drive for drive1 or drive2, DISKCOPY displays the |
| following error message: |
|
| Invalid drive specification |
| Specified drive does not exist |
| or is non-removable |
|
| DISKCOPY messages |
|
| The DISKCOPY command prompts you to insert the source and destination disks |
| and waits for you to press any key before continuing. |
|
| After copying, DISKCOPY displays the following message: |
|
| Copy another diskette (Y/N)? |
|
| If you press Y, DISKCOPY prompts you to insert source and destination disks |
| for the next copy operation. To stop the DISKCOPY process, press N. |
|
| If you are copying to an unformatted floppy disk in drive2, DISKCOPY formats |
| the disk with the same number of sides and sectors per track as are on the |
| disk in drive1. DISKCOPY displays the following message while it formats the |
| disk and copies the files: |
|
| Formatting while copying |
|
| If the capacity of the source disk is greater than that of the destination |
| disk and your computer can detect this difference, DISKCOPY displays the |
| following message: |
|
| Drive types or diskette types not compatible |
|
| Disk serial numbers |
|
| If the source disk has a volume serial number, DISKCOPY creates a new volume |
| serial number for the destination disk and displays the number when the copy |
| operation is complete. |
|
| Omitting drive parameters |
|
| If you omit the drive2 parameter, DISKCOPY uses the current drive as the |
| destination drive. If you omit both drive parameters, DISKCOPY uses the |
| current drive for both. If the current drive is the same as drive1, DISKCOPY |
| prompts you to swap disks as necessary. |
|
| Using one drive for copying |
|
| When you use a single drive as both the source and destination drive, |
| DISKCOPY stores an image of the source disk in the directory specified by |
| the TEMP environment variable. If there is not enough space on that drive to |
| contain the source-disk image, you might have to swap floppy disks. DISKCOPY |
| prompts you each time you should insert a disk in the drive. DISKCOPY reads |
| from the source disk, writes to the destination disk, and prompts you to |
| insert the source disk again. This process continues until the entire disk |
| has been copied. |
|
| Avoiding disk fragmentation |
|
| Because DISKCOPY makes an exact copy of the source disk on the destination |
| disk, any fragmentation on the source disk is transferred to the destination |
| disk. Fragmentation is the presence of small areas of unused disk space |
| between existing files on a disk. |
|
| A fragmented source disk can slow down the finding, reading, or writing of |
| files. To avoid transferring fragmentation from one disk to another, use |
| either the COPY command or the XCOPY command to copy your disk. Because COPY |
| and XCOPY copy files sequentially, the new disk is not fragmented. |
|
| Copying Startup disks |
|
| If you use the DISKCOPY command to copy a startup disk, the copy will also |
| be a startup disk. If you use COPY or XCOPY to copy a startup disk, the copy |
| usually will not be a startup disk. |
|
| DISKCOPY exit codes |
|
| The following list shows each exit code (ERRORLEVEL parameter) and gives a |
| brief description of its meaning: |
|
| 0 |
| The copy operation was successful. |
|
| 1 |
| A nonfatal read/write error occurred. |
|
| 2 |
| The user pressed CTRL+C to stop the process. |
|
| 3 |
| A critical error occurred. |
|
| 4 |
| An initialization error occurred. |
|
| You can use the ERRORLEVEL parameter on the IF command line in a batch |
| program to process exit codes returned by DISKCOPY. For an example of a |
| batch program that processes exit codes, see the CHOICE command. |
|
|
