fdisk

   fdisk [options]

• Without options. FDisk provides an interactive menu.
• With options.

options

General Notes on the Options

• partitions, partition types and drives are all specified by numbers.
• sizes are specified in Mega Bytes, or as a percentage if followed by ,100.
  For example 50 would be 50MB and 50,100 would be 50%.

Partition Table Modification

   
/AUTO [drive]
   Automatically partitions the hard disk with FAT16 partitions.

/ACTIVATE:partition [drive]
   Sets this partion active

/CLEAR [drive]
   Erases the partitions

/CLEARALL [drive]
   Erases the partitions and the Master Boot Record.

/DELETE {/PRI | /EXT | /LOG:partition | /NUM:partition} [drive]
   Deletes a partition (primary, extended, logical)   

/DEACTIVATE [drive]
   Removes the active status from the active partition on this drive.

/EXT:size [ {/LOG:size [/SPEC:type]} | {/LOGO:size [/SPEC:type]} ] [drive]
   Creates an Extended DOS Partition.
   Sizes are in megabytes, or a percentage if size,100 is written.
   Use /LOG to create a logical partition, and /LOGO to
   create a FAT16 logical partition, in the extended
   partition
   Use /SPEC to specify the partition type number.

/MODIFY:partition,type [drive]
   Sets the partition type.

/MOVE:source_partition,dest_partition [drive]
   Moves the entry, in the primary partition table, from
   source_partition to dest_partition.

/PRI:size [/SPEC:type] [drive] 
   creates a primary partition

/PRIO:size [/SPEC:type] [drive] 
   creates a FAT16 primary partition

/SWAP:first_partition,second_partition [drive]
   swaps two partition entries.


Master Boot Record Modification

/AMBR [drive]
   Writes the MBR stored in the "boot.mbr" file to the drive.

/MBR [drive]
   Writes the MBR to the specified drive.

/RMBR [drive]
   Removes the MBR from the specified drive

/SMBR [drive]
   Downloads the MBR into a file called "boot.mbr".


Getting Hard Disk Information

/DUMP
   Displays all the information about all possible hard disks.

/INFO [/TECH] [drive]
   Displays partition information on the specified drive


Legacy FDisk options

/ACTOK
   Skips integrity checking.

/CMBR drive
   Creates the Master Boot Record.

/FPRMT
   Prompts for FAT32/FAT16 in interactive mode.
   
/Q
   Keeps the system from rebooting after you exit FDisk.
   (Note:  FDisk will not reboot after you exit unless
   rebooting is enabled in the "fdisk.ini" file.)

/STATUS
   Displays the current partition layout

/X
   Inhibits use of LBA partitions.


Others

/REBOOT
   Forces a reboot.

/MONO
   Use the monochrome text mode in interactive FDisk.

/XO
   Enable extended options.

See Also