$Date: 2025-08-11 19:18:47 +0200 (Mon, 11 Aug 2025) $

VBoxManage mediumio

VBoxManage-mediumio 1
VBoxManage-mediumio medium content access &product-name;
`VBoxManage mediumio` --disk=uuid|filename --dvd=uuid|filename --floppy=uuid|filename --password-file=-|filename formatfat --quick `VBoxManage mediumio` --disk=uuid|filename --dvd=uuid|filename --floppy=uuid|filename --password-file=-|filename cat --hex --offset=byte-offset --size=bytes --output=-|filename `VBoxManage mediumio` --disk=uuid|filename --dvd=uuid|filename --floppy=uuid|filename --password-file=-|filename stream --format=image-format --variant=image-variant --output=-|filename

## Description

### Common options

The subcommands of `mediumio` all operate on a medium which must be specified using one of the following options along with an optional encryption password. The following common options can be placed before or after the sub-command:

--disk=uuid|filename

  Either the UUID or filename of a harddisk image, e.g. VDI, VMDK, VHD, ++.

--dvd=uuid|filename

  Either the UUID or filename of a DVD image, e.g. ISO, DMG, CUE.

--floppy=uuid|filename

  Either the UUID or filename of a floppy image, e.g. IMG.

--password-file=-|filename

  The name of a file containing the medium encryption password. If `-` is specified, the password will be read from stdin.

### mediumio formatfat

Formats a medium with the FAT file system. This will erase the contents of the medium.

`--quick`

  Quickformat the medium.

### mediumio cat

Dumps the contents of the medium to stdout or the specified file.

`--hex`

  Dump as hex bytes.

`--offset`

  The byte offset in the medium to start.

`--size`

  The number of bytes to dump.

`--output`

  The output filename. As usual `-` is take to mean stdout.

### mediumio stream

Converts the medium to a streamable format and dumps it to the given output.

`--format`

  The format of the destination image.

`--variant`

  The medium variant for the destination.

`--output`

  The output filename. As usual `-` is take to mean stdout.