mbrlabel(8) - NetBSD Manual Pages

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MBRLABEL(8)             NetBSD System Manager's Manual             MBRLABEL(8)


NAME

     mbrlabel - update disk label from MBR label(s)


SYNOPSIS

     mbrlabel [-fqrw] device


DESCRIPTION

     mbrlabel is used to update a NetBSD disk label from the Master Boot
     Record (MBR) label(s) found on disks that were previously used on
     DOS/Windows systems (or other MBR using systems).

     mbrlabel scans the MBR contained in the very first block of the disk,
     then walks through every extended partition found and generating addi-
     tional partition entries for the disk from the MBRs found in those ex-
     tended partitions.

     Each MBR partition which does not have an equivalent partition in the
     disk label (equivalent in having the same size and offset) is added to
     the first free partition slot in the disk label. A free partition slot is
     defined as one with an fstype of `unused' and a size of zero (`0').  If
     there are not enough free slots in the disk label, a warning will be is-
     sued.

     The raw partition (typically partition c, but d on i386 and some othe
     platforms) is left alone during this process.

     By default, the proposed changed disk label will be displayed and no disk
     label update will occur.

     Available options:

     -f      Force an update, even if there has been no change.

     -q      Performs operations in a quiet fashion.

     -r      Update both the in-core and the on-disk label if the in-core la-
             bel has been changed.

     -w      Update the on-disk label if it has been changed.


SEE ALSO

     disklabel(8), fdisk(8)


HISTORY

     The mbrlabel command appeared in NetBSD 1.4.

NetBSD 1.5.3                   December 27, 2000                             1