.B sfdisk
supports two input formats and generic header lines.
-.B Header lines
-.RS
+.SS Header lines
The optional header lines specify generic information that apply to the partition
table. The header-line format is:
-.RS
.sp
.B "<name>: <value>"
.sp
.RE
The currently recognized headers are:
-.RS
.TP
.B unit
Specify the partitioning unit. The only supported unit is \fBsectors\fR.
Specify sector size. This header is informative only and it is not used when
sfdisk creates a new partition table, in this case the real device specific
value is always used and sector size from the dump is ignored.
-.RE
-.sp
+.PP
Note that it is only possible to use header lines before the first partition
is specified in the input.
-.RE
-
-.B Unnamed-fields format
-.RS
+.SS Unnamed-fields format
+\&
.RS
.sp
.I start size type bootable
simple human readable word (e.g. "linux").
Supported shortcuts and aliases:
-.RS
.TP
.B L - alias 'linux'
Linux; means 83 for MBR and 0FC63DAF-8483-4772-8E79-3D69D8477DE4 for GPT.
.TP
.B V - alias 'lvm'
LVM; means 8E for MBR and E6D6D379-F507-44C2-A23C-238F2A3DF928 for GPT
-.RE
.PP
The default
.I type
value of this field is irrelevant for Linux - when Linux runs it has
been booted already - but it might play a role for certain boot
loaders and for other operating systems.
-.RE
-
-.B Named-fields format
-.RS
+.SS Named-fields format
This format is more readable, robust, extensible and allows specifying additional
information (e.g., a UUID). It is recommended to use this format to keep your scripts
more readable.
.I value
can be between quotation marks (e.g., name="This is partition name").
The currently supported fields are:
-.RS
.TP
.BI start= number
The first non-assigned sector aligned according to device I/O limits. The default
A hexadecimal number (without 0x) for an MBR partition, a GUID for a GPT partition,
or a shortcut as for unnamed-fields format.
For backward compatibility the \fBId=\fR field has the same meaning.
-.RE
-.RE
-
.SH EMPTY DISK LABEL
.B sfdisk
does not create partition table without partitions by default. The lines with