Please provide OS information first. Commands and options for fdisk utility varies from OS to OS. Here's what I would do on a RHEL system to create 30MB partition!
Code:
[root@testserv-sl6 ~]# fdisk /dev/sdb
WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
switch off the mode (command 'c') and change display units to
sectors (command 'u').
Command (m for help): m
Command action
a toggle a bootable flag
b edit bsd disklabel
c toggle the dos compatibility flag
d delete a partition
l list known partition types
m print this menu
n add a new partition
o create a new empty DOS partition table
p print the partition table
q quit without saving changes
s create a new empty Sun disklabel
t change a partition's system id
u change display/entry units
v verify the partition table
w write table to disk and exit
x extra functionality (experts only)
Command (m for help): p
Disk /dev/sdb: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00092e03
Device Boot Start End Blocks Id System
/dev/sdb1 1 244 1953125 83 Linux
Partition 1 does not end on cylinder boundary.
/dev/sdb2 244 487 1952768 83 Linux
Partition 2 does not end on cylinder boundary.
/dev/sdb3 487 730 1952768 83 Linux
Partition 3 does not end on cylinder boundary.
/dev/sdb4 730 1045 2529280 83 Linux
Command (m for help): d
Partition number (1-4): 1
Command (m for help): d
Partition number (1-4): 2
Command (m for help): d
Partition number (1-4): 3
Command (m for help): d
Selected partition 4
Command (m for help): p
Disk /dev/sdb: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00092e03
Device Boot Start End Blocks Id System
Command (m for help): n
Command action
e extended
p primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-1044, default 1): 1
Last cylinder, +cylinders or +size{K,M,G} (1-1044, default 1044): +30M
Command (m for help): p
Disk /dev/sdb: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00092e03
Device Boot Start End Blocks Id System
/dev/sdb1 1 5 40131 5 Primary
Command (m for help): w
Dear Members,
I am using SCO-Unix 5.0.5. I have created 2 logical drives but some of the blocks are overlapped and are now giving warning during startup. I have used fsck to settle the problems but to no avail. Kindly help me to sort out the problem.
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I have 40GB HD with mepis8, swap, MBR and under flags word boot.
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hi all
while formatting hard disk i am getting following error.
Partition 1 ends at 266338338
It must be between 34 and 143374704.
label error: EFI Labels do not support overlapping partitions
Partition 8 overlaps partition 1.
Warning: error writing EFI.
Label failed.
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I am using SPARC Solaris 11.1 with EFI labelled disks.
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Hello, I have an input that is unformatted text, such as below.
INPUT:
Hola. Me llamo Davíd y soy de Andalucía. Mi color favorito es rojo. ¿Como te llamas? ¿Cuál es tu color favorito?
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Discussion started by: owwow14
1 Replies
LEARN ABOUT DEBIAN
fdisk
CFDISK(8) GNU fdisk Manual CFDISK(8)NAME
GNU fdisk, lfdisk, gfdisk - manipulate partition tables on a hard drive
SYNOPSIS
fdisk [options] [device]
DESCRIPTION
fdisk is a disk partition manipulation program, which allows you to create, destroy, resize, move and copy partitions on a hard drive using
a menu-driven interface. It is useful for organising the disk space on a new drive, reorganising an old drive, creating space for new oper-
ating systems, and copying data to new hard disks. For a list of the supported partition types, see the --list-partition-types option
below.
It comes in two variants, gfdisk and lfdisk. Lfdisk aims to resemble Linux fdisk 2.12, while gfdisk supports more advanced disk operations,
like resizing the filesystem, moving and copying partitions. When starting fdisk, the default is to run gfdisk.
OPTIONS -h, --help
displays a help message.
-v, --version
displays the program's version.
-L, --linux-fdisk
turns on Linux fdisk compatibility mode. This is the same as running lfdisk.
-G, --gnu-fdisk
turns off Linux fdisk compatibility mode.
-i, --interactive
where necessary, prompts for user intervention.
-p, --script
never prompts for user intervention.
-l, --list
lists the partition table on the specified device and exits. If there is no device specified, lists the partition tables on all
detected devices.
-r, --raw-list
displays a hex dump of the partition table of the disk, similar to the way Linux fdisk displays the raw data in the partition table.
-u, --sector-units
use sectors, instead of cylinders for a default unit.
-s, --size=DEVICE
prints the size of the partition on DEVICE is printed on the standard output.
-t, --list-partition-types
displays a list of supported partition types and features.
The following options are available only to lfdisk.
-b, --sector-size=SIZE
Specify the sector size of the disk. Valid values are 512, 1024 and 2048. Should be used only on older kernels, which don't guess
the correct sector size.
-C, --cylinders=CYLINDERS
Specify the number of cylinders of the disk. Currently does nothing, it is left for Linux fdisk compatibility.
-H, --heads=HEADS
Specify the number of heads of the disk. Reasonable values are 255 or 16.
-S, --sectors=SECTORS
Specify the number of sectors per track. A reasonable value is 63.
BUGS
Before editing a BSD disklabel, the partition with the disklabel should already exist on the disk and be detected by the OS. If you have
created a BSD-type partition, you need to write the changes to the disk. If fdisk fails to notify the OS about the changes in partition ta-
ble, you need to restart your computer. As fdisk tries to guess the device holding the BSD disklabel, it might fail to edit it at all, even
if the OS has detected it. In this case you are adviced to simply open the device with fdisk directly. It is possible that it doesn't work
on some operating systems.
Getting the size of a partition with -s might fail, if fdisk fails to guess the disk device, for the same reasons as with the previous bug.
SEE ALSO mkfs(8), cfdisk(8), parted(8) The fdisk program is fully documented in the info(1) format GNU fdisk User Manual manual.
fdisk 18 August, 2006 CFDISK(8)