diff options
Diffstat (limited to 'sbin/disklabel/disklabel.8')
| -rw-r--r-- | sbin/disklabel/disklabel.8 | 51 |
1 files changed, 45 insertions, 6 deletions
diff --git a/sbin/disklabel/disklabel.8 b/sbin/disklabel/disklabel.8 index c98b6182a26..7c7e4b79d70 100644 --- a/sbin/disklabel/disklabel.8 +++ b/sbin/disklabel/disklabel.8 @@ -1,4 +1,4 @@ -.\" $NetBSD: disklabel.8,v 1.68 2017/07/03 21:33:41 wiz Exp $ +.\" $NetBSD: disklabel.8,v 1.69 2019/07/02 16:23:47 mlelstv Exp $ .\" .\" Copyright (c) 1987, 1988, 1991, 1993 .\" The Regents of the University of California. All rights reserved. @@ -41,37 +41,52 @@ .Sh SYNOPSIS .\" disklabel: read label .Nm -.Op Fl ACDFmrtv +.Op Fl ACDFmnrtv .Op Fl B Ar endian +.Op Fl L Ar sector .Op Fl M Ar machine +.Op Fl O Ar offset +.Op Fl P Ar size .Ar disk .\" disklabel -e: read/modify/write using $EDITOR .Nm .Fl e -.Op Fl CDFImrv +.Op Fl CDFImnrv .Op Fl B Ar endian +.Op Fl L Ar sector .Op Fl M Ar machine +.Op Fl O Ar offset +.Op Fl P Ar size .Ar disk .\" disklabel -i: read/modify/write using builtin commands .Nm .Fl i -.Op Fl DFImrv +.Op Fl DFImnrv .Op Fl B Ar endian +.Op Fl L Ar sector .Op Fl M Ar machine +.Op Fl O Ar offset +.Op Fl P Ar size .Ar disk .\" disklabel -R: write from edited output .Nm .Fl R -.Op Fl DFmrv +.Op Fl DFmnrv .Op Fl B Ar endian +.Op Fl L Ar sector .Op Fl M Ar machine +.Op Fl O Ar offset +.Op Fl P Ar size .Ar disk Ar protofile .\" disklabel -w: write from disctab entry .Nm .Fl w -.Op Fl DFmrv +.Op Fl DFmnrv .Op Fl B Ar endian +.Op Fl L Ar sector .Op Fl M Ar machine +.Op Fl O Ar offset +.Op Fl P Ar size .Op Fl f Ar disktab .Ar disk Ar disktype .Oo Ar packid Oc @@ -189,8 +204,23 @@ Specify the name of a file to use instead of .It Fl M Ar machine Specify the machine to generate a label for. Defaults to the current machine it is compiled for. +Specific details can be overridden via environment +and with the options +.Fl B, L, O, p, m +and +.Fl n. +.It Fl L +num specify the relative sector number of the disklabel +similar to the environment variable DISKLABELSECTOR. +.It Fl O +num specify the relative byte offset of the disklabel. +similar to the environment variable DISKLABELOFFSET. +.It Fl P +num specify the size of the partition table. .It Fl m expect the label to have an MBR. +.It Fl n +expect the label not to have an MBR. .It Fl r Read/write the disk directly rather than using .Xr ioctl 2 @@ -368,3 +398,12 @@ flag causes to write directly to disk, and bypass the format translation. This will result in a disk label that the PROMs will not recognize, and that therefore cannot be booted from. +.Pp +The +.Fl m +flag previously toggled between using an MBR and not using an MBR, +with the default being implied by the machine type. +It now always enables MBR mode, independent of the machine default. +Use the +.Fl n +flag to disable MBR mode. |
