On Wed, May 12, 2010 at 03:17:07PM +0200, Thomas Pfaff wrote:
quoted text
> On Tue, 11 May 2010 22:14:26 +0200
> Thomas Pfaff <tpfaff@tp76.info> wrote:
> 
> > On Tue, 11 May 2010 12:34:28 -0700 (PDT)
> > stupidmail4me <stupidmail4me@yahoo.com> wrote:
> > > 
> > > Anyone know how to edit the default MBR record so fdisk -iy creates
> > > one partition with no bootable flag, or how to unset the bootable flag?
> > 
> > I think the following should do it:
> > 
> >     fdisk: 1> flag <partition> 0
> > 
> > I suppose the man page should mention that this operation can take on
> > a second operand.
> > 
> 
> diff if this should be mentioned.  It was in fact mentioned in the man
> page but the text was commented out.  Not sure why.
> 
> Index: fdisk.8
> ===================================================================
> RCS file: /cvs/src/sbin/fdisk/fdisk.8,v
> retrieving revision 1.69
> diff -u -p -r1.69 fdisk.8
> --- fdisk.8	27 Mar 2010 13:56:49 -0000	1.69
> +++ fdisk.8	12 May 2010 13:15:04 -0000
> @@ -303,14 +303,14 @@ may be appended to indicate bytes, kilob
>  The special size value
>  .Sq *
>  will cause the partition to be sized to use the remainder of the disk.
> -.It Cm flag Ar #
> +.It Cm flag Ar # Op Ar value
>  Make the given MBR partition table entry bootable.
>  Only one entry can be marked bootable.
>  .\" If you wish to boot from an extended
>  .\" MBR partition, you will need to mark the MBR partition table entry for the
>  .\" extended MBR partition as bootable.
> -.\" If an optional value is given, the MBR partition is marked with the given
> -.\" value, and other MBR partitions are not touched.
> +If an optional value is given, the MBR partition is marked with the given
> +value, and other MBR partitions are not touched.
>  .It Cm update
>  Update the machine MBR bootcode and 0xAA55 signature in the memory copy
>  of the currently selected boot block.

a slightly different version of this diff now committed.
jmc