What debug mode?

Of course there is a debug mode. Doesn't every Unix program have one?

So tell me about it...

To get into debug mode from the Linux command line you can specify '-d' or '--debug'. From interactive mode you can use the 'd' command at the top level.

The follwing commands are added to the top level commands:

  a    toggle abbreviate flag
  p    toggle physical flag
  c    toggle compute size flag
  d    toggle debug flag
  x    examine block n of device

a

Abbreviate partition types. When set causes the display of a partition table to show a four character abbreviation rather than the full partition type. Shows '????' for unrecognized types.

p

Show physical versus logical limits. When unset causes the partition table display to show logical limits of partition rather than physical. Only really useful for A/UX.

c

Causes pdisk to always ignore the device size listed in the partition table and compute the device size by other means.

d

Turn debug mode on and off.

x

Enter the 'expert' menu.

Expert command mode looks like:

Notes:
  The expert commands are for low level and experimental features.
  These commands are available only when debug mode is on.

Commands are:
  h    print help
  d    dump block n
  p    print the partition table
  P    (show data structures  - debugging)
  f    full display of nth entry
  v    validate map
  e    examine patch partition
  q    return to main edit menu
  Q    quit without saving changes