are being searched in that order, until one is

are searched in that order, until one is found to respond.

being found responding.

When called with no arguments, it prints the sector 0 partition table.

When called with no options, 

.Nm

prints the sector 0 partition table.

fields are used to specify the beginning address

fields are used to specify the beginning and end addresses of the partition.

and end address for the partition.

The flags

The

or

and

are used to indicate that the partition data is to be updated, unless the

flags are used to indicate that the partition data is to be updated.

.Fl f

Unless the

option is used.  If the

option is not used, the

option is also given,

program will enter a conversational mode.

will enter a conversational mode.

This mode is designed not to change any data unless you explicitly tell it to.

In this mode, no changes will be written to disk unless you explicitly tell

.Nm Fdisk

.Nm

selects defaults for its questions to guarantee the above behavior.

to.

It displays each partition

.Nm Fdisk

and ask if you want to edit it.

will display each partition and ask whether you want to edit it.

will display it and ask if it is correct.

will step through each field, show you the old value,

and ask you for a new one.

When you are done with the partition,

.Nm

will display it and ask you whether it is correct.

fields correct is tricky.

fields correct is tricky, so by default,

So by default,

you can specify them if you choose.

you can specify them if you choose to though.

Finally,

Finally, when all the new data for sector 0 has been accumulated,

when the all the data for the first sector has been accumulated,

you are asked to confirm whether you really want to rewrite it.

you are asked if you really want to rewrite sector 0.

Only if you answer yes,

will the data be written to disk.

flag and

and

flag is that

flags is that

flag just edits the fields as they appear on the disk.

flag just edits (updates) the fields as they appear on the disk,

While the

while the

a set of figures that represent what the BIOS thinks is the

a set of figures that represent what the BIOS thinks the

geometry of the drive.

geometry of the drive is.

These figures are by default taken from the incore disklabel,

These figures are taken from the in-core disklabel by default,

but the program initially gives you an opportunity to change them.

but

This allows the user to create a bootblock that can work with drives

.Nm

initially gives you an opportunity to change them.

This allows you to create a bootblock that can work with drives

Editing an existing partition will most likely cause you to

Editing an existing partition will most likely result in the loss of

lose all the data in that partition.

all data in that partition.

You should run this program interactively once or twice to see how it

You should run

works.  This is completely safe as long as you answer the last question

.Nm

in the negative.  There are subtleties that the program detects that are

interactively once or twice to see how it works.

not fully explained in this manual page.

This is completely safe as long as you answer the last question

in the negative.  There are subtleties that

.Nm

detects that are not fully explained in this manual page.

The syntax of this file is very simple.  Each line is either a comment or

The syntax of this file is very simple;

a specification, and whitespace (except for newlines) are ignored:

each line is either a comment or a specification, as follows:

is not enforced, although a warning will be output.  Note that bootable

is not enforced, although a warning will be printed.  Note that bootable