Para listarmos a tabela de partições de um disco use a opção "-l":
# fdisk -l /dev/sda
Disk /dev/sda: 500 GB, 500105249280 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 12158 97659103 83 Linux
Warning: Partition 1 does not end on cylinder boundary.
/dev/sda2 12158 36473 195310237 83 Linux
Warning: Partition 2 does not end on cylinder boundary.
/dev/sda3 36473 60801 195414660 f Extended LBA
/dev/sda5 36473 60801 195414660 83 Linux
Warning: Partition 5 does not end on cylinder boundary.
#
Disk /dev/sda: 500 GB, 500105249280 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 12158 97659103 83 Linux
Warning: Partition 1 does not end on cylinder boundary.
/dev/sda2 12158 36473 195310237 83 Linux
Warning: Partition 2 does not end on cylinder boundary.
/dev/sda3 36473 60801 195414660 f Extended LBA
/dev/sda5 36473 60801 195414660 83 Linux
Warning: Partition 5 does not end on cylinder boundary.
#
Aqui temos um disco de 500Gb com 2 partições primárias (1 e 2), uma extendida (3) e uma lógica (5).
Para alteramos as partições, podemos chamar o Ddisk passando como parâmetro o disco (no nosso exemplo, /dev/sda).
# fdisk /dev/sda
GNU Fdisk 1.2.4
Copyright (C) 1998 - 2006 Free Software Foundation, Inc.
This program is free software, covered by the GNU General Public License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
Using /dev/sda
Command (m for help):
GNU Fdisk 1.2.4
Copyright (C) 1998 - 2006 Free Software Foundation, Inc.
This program is free software, covered by the GNU General Public License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
Using /dev/sda
Command (m for help):
Para ajuda, tecle "m".
Command (m for help): m
Command action
a toggle bootable flag
b edit bsd disklabel
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):
Command action
a toggle bootable flag
b edit bsd disklabel
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):
O Fdisk pode assustar no início, mas ele tem opções bem interessantes, e sua ajuda realmente nos ajuda. Por exemplo, para listar as partições, tecle "p".
Command (m for help): p
Disk /dev/sda: 500 GB, 500105249280 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 12158 97659103 83 Linux
Warning: Partition 1 does not end on cylinder boundary.
/dev/sda2 12158 36473 195310237 83 Linux
Warning: Partition 2 does not end on cylinder boundary.
/dev/sda3 36473 60801 195414660 f Extended LBA
/dev/sda5 36473 60801 195414660 83 Linux
Warning: Partition 5 does not end on cylinder boundary.
Command (m for help):
Disk /dev/sda: 500 GB, 500105249280 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sda1 * 1 12158 97659103 83 Linux
Warning: Partition 1 does not end on cylinder boundary.
/dev/sda2 12158 36473 195310237 83 Linux
Warning: Partition 2 does not end on cylinder boundary.
/dev/sda3 36473 60801 195414660 f Extended LBA
/dev/sda5 36473 60801 195414660 83 Linux
Warning: Partition 5 does not end on cylinder boundary.
Command (m for help):
Use "n" para criar uma nova partição, "d" para excluir, "p" para listar as partições, "l" para listar os tipos de partições que o Fdisk conhece, "w" para gravar as mudanças e "q" para sair.
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