SCSI_PARTSIZE(9) SCSI mid layer SCSI_PARTSIZE(9)NAME
scsi_partsize - Parse cylinders/heads/sectors from PC partition table
SYNOPSIS
int scsi_partsize(unsigned char * buf, unsigned long capacity, unsigned int * cyls, unsigned int * hds, unsigned int * secs);
ARGUMENTS
buf
partition table, see scsi_bios_ptable
capacity
size of the disk in sectors
cyls
put cylinders here
hds
put heads here
secs
put sectors here
DESCRIPTION
determine the BIOS mapping/geometry used to create the partition table, storing the results in *cyls, *hds, and *secs
RETURNS -1 on failure, 0 on success.
AUTHORS
James Bottomley <James.Bottomley@hansenpartnership.com>
Author.
Rob Landley <rob@landley.net>
Author.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 SCSI_PARTSIZE(9)
Check Out this Related Man Page
mpartition(1) General Commands Manual mpartition(1)Name
mpartition - partition an MSDOS hard disk
Note of warning
This manpage has been automatically generated from mtools's texinfo documentation, and may not be entirely accurate or complete. See the
end of this man page for details.
Description
The mpartition command is used to create MS-DOS file systems as partitions. This is intended to be used on non-Linux systems, i.e. systems
where fdisk and easy access to SCSI devices are not available. This command only works on drives whose partition variable is set.
mpartition -p drive
mpartition -r drive
mpartition -I [-B bootSector] drive
mpartition -a drive
mpartition -d drive
mpartition -c [-s sectors] [-h heads]
[-t cylinders] [-v [-T type] [-b
begin] [-l length] [-f]
Mpartition supports the following operations:
p Prints a command line to recreate the partition for the drive. Nothing is printed if the partition for the drive is not defined, or
an inconsistency has been detected. If verbose (-v) is also set, prints the current partition table.
r Removes the partition described by drive.
I Initializes the partition table, and removes all partitions.
c Creates the partition described by drive.
a "Activates" the partition, i.e. makes it bootable. Only one partition can be bootable at a time.
d "Deactivates" the partition, i.e. makes it unbootable.
If no operation is given, the current settings are printed.
For partition creations, the following options are available:
s sectors
The number of sectors per track of the partition (which is also the number of sectors per track for the whole drive).
h heads
The number of heads of the partition (which is also the number of heads for the whole drive). By default, the geometry information
(number of sectors and heads) is figured out from neighboring partition table entries, or guessed from the size.
t cylinders
The number of cylinders of the partition (not the number of cylinders of the whole drive.
b begin
The starting offset of the partition, expressed in sectors. If begin is not given, mpartition lets the partition begin at the start
of the disk (partition number 1), or immediately after the end of the previous partition.
l length
The size (length) of the partition, expressed in sectors. If end is not given, mpartition figures out the size from the number of
sectors, heads and cylinders. If these are not given either, it gives the partition the biggest possible size, considering disk
size and start of the next partition.
The following option is available for all operation which modify the partition table:
f Usually, before writing back any changes to the partition, mpartition performs certain consistency checks, such as checking for
overlaps and proper alignment of the partitions. If any of these checks fails, the partition table is not changes. The -f allows
you to override these safeguards.
The following options are available for all operations:
v Together with -p prints the partition table as it is now (no change operation), or as it is after it is modified.
vv If the verbosity flag is given twice, mpartition will print out a hexdump of the partition table when reading it from and writing it
to the device.
The following option is available for partition table initialization:
B bootSector
Reads the template master boot record from file bootSector.
See Also
Mtools' texinfo doc
Viewing the texi doc
This manpage has been automatically generated from mtools's texinfo documentation. However, this process is only approximative, and some
items, such as crossreferences, footnotes and indices are lost in this translation process. Indeed, these items have no appropriate repre-
sentation in the manpage format. Moreover, not all information has been translated into the manpage version. Thus I strongly advise you
to use the original texinfo doc. See the end of this manpage for instructions how to view the texinfo doc.
* To generate a printable copy from the texinfo doc, run the following commands:
./configure; make dvi; dvips mtools.dvi
* To generate a html copy, run:
./configure; make html
A premade html can be found at `http://www.gnu.org/software/mtools/manual/mtools.html'
* To generate an info copy (browsable using emacs' info mode), run:
./configure; make info
The texinfo doc looks most pretty when printed or as html. Indeed, in the info version certain examples are difficult to read due to the
quoting conventions used in info.
mtools-4.0.18 09Jan13 mpartition(1)