rdb(1A) — Amiga System V Release 4 Version 1.1



RDB(1A)           MISC. REFERENCE MANUAL PAGES            RDB(1A)



NAME
     rdb - create and manage disk partition tables

SYNOPSIS
     rdb [ -H ] device

     rdb [options] -c device {partition-name start length} ...

     rdb [options] device

DESCRIPTION
     rdb can be used in three major ways:  to display a disk par-
     tition table, to create one, or to modify one.

     rdb with no options or with the -H option will  display  the
     partition  table  on  the specified device, if there is one.
     rdb with the -c option creates a disk partition table on the
     specified device.  rdb with the -p option will modify param-
     eters associated with the selected partition.

OPTIONS
     rdb recognizes the following options:

     -b   Make the selected partition non-bootable.

     -B   Make the selected partition bootable.

     -c   Causes rdb to create a new partition table and write it
          to  the specified device.  A partition list must follow
          the arguments.

     -C n The the number of custom boot blocks for  the  selected
          partition  to n.  An Amiga Unix boot partition requires
          2 custom boot blocks.

     -f file
          Add the specified loadseg file to  the  filesystem  for
          the selected partition.

     -F n Set the file system type on the selected  partition  to
          n,  wher n is a four digit hex number.  Valid file sys-
          tem types are:

     0x444f5300      DOS\0        AmigaDOS old filesystem
     0x444f5301      DOS\1        AmigaDOS fast filesystem (ffs)
     0x554e4900      UNI\0        Unix s5 filesystem
     0x554e4901      UNI\1        Unix boot filesystem
     0x554e4902     UNI\2        Unix ufs filesystem
     0x72657376      RESV         Reserved partition (Unix swap)

     -H   Present partition information in a human-readable form.




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RDB(1A)           MISC. REFERENCE MANUAL PAGES            RDB(1A)



     -m   Make the selected partition not mountable.

     -M   Make the selected partition mountable.

     -p n Select partition n.  The b, B, C, P, f  and  F  options
          operate on the selected partition.  Partitions are num-
          bered starting at 1.

     -P n Set the boot priority on the selected partition to n.

     -R n Set the number of filesystem reserved blocks to n.

     -s n Set sectors per track to n.  Default sectors per  track
          is 1.  If another value is used, partitions must end on
          track boundaries.

DIAGNOSTICS
     rdb's  exit  status  indicates  success  or   failure.    An
     appropriate  message  is written to standard error output on
     failure.



































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