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On the Japanese PC-98, if the system is booted from floppy disk, the dedicated version of MS-DOS assigns letters to all floppy drives before considering hard drives; it does the opposite if it is booted from a hard drive, that is, if the OS was installed on the hard drive, MS-DOS would assign this drive as drive "A:" and a potentially existing ...
"M" represents the drive letter to assign a custom label to. However, labels created for SUBST drives in this manner are overridden by the label of the host drive/partition: the custom labels are only used if the host drive has no label. One may then: Delete the host's drive label; Create the proper registry keys for the SUBST drive letter;
LABEL [drive:][label] LABEL [/MP] [volume] [label] Arguments: drive: This command-line argument specifies the drive letter of a drive. label Specifies the label of the volume. volume Specifies the drive letter (followed by a colon), mount point, or volume name. Flags: /MP Specifies that the volume should be treated as a mount point or volume name.
The JOIN command attaches a drive letter to a specified directory on another drive. [11] The opposite can be achieved via the SUBST command. The command is available in MS-DOS versions 3 through 5. It is available separately for versions 6.2 and later on the Supplemental Disk. [1]
vol [Drive:] Arguments: Drive: This command-line argument specifies the drive letter of the disk for which to display the volume label and serial number. Note: On Windows, the volume serial number is displayed only for disks formatted with MS-DOS version 4.0 or later. OS/2 allows the user to specify more than one drive.
I'd like to know why they chose to assign drive letters the way they did. Why not make the primary partition A, followed by subsequent partitions and then start assigning removeable devices? Because floppy drives came first and hard drives were invented later. Early PCs had one or two floppy drives so a: and b: were assigned to those.
In CP/M, DOS, Windows, and OS/2, the root directory is "drive:\", for example on modern systems, the root directory is usually "C:\". The directory separator is usually a "\", but many operating systems also internally recognize a "/". Physical and virtual drives are named by a drive letter, as opposed to being combined as one. [1]
Drive mapping is how MS-DOS and Microsoft Windows associate a local drive letter (A-Z) with a shared storage area to another computer (often referred as a File Server) over a network. After a drive has been mapped , a software application on a client 's computer can read and write files from the shared storage area by accessing that drive, just ...