Fdisk

wikipedia:fdisk (1983)

fdisk
fdisk: bad usage
Try 'fdisk --help' for more information.

fdisk -l

fdisk -l /dev/sda
Disk /dev/sda: 14.9 GiB, 15931539456 bytes, 31116288 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00000000

Device     Boot Start      End  Sectors  Size Id Type
/dev/sda1        8192 31116287 31108096 14.9G  c W95 FAT32 (LBA)

Create two partitions

Command (m for help): n
Partition type
   p   primary (0 primary, 0 extended, 4 free)
  e   extended (container for logical partitions)
Select (default p): p
Partition number (1-4, default 1):
First sector (2048-31116287, default 2048):
Last sector, +sectors or +size{K,M,G,T,P} (2048-31116287, default 31116287): +64M

Created a new partition 1 of type 'Linux' and of size 64 MiB.

Command (m for help): n
Partition type
  p   primary (1 primary, 0 extended, 3 free)
  e   extended (container for logical partitions)
Select (default p): e
Partition number (2-4, default 2):
First sector (133120-31116287, default 133120):
Last sector, +sectors or +size{K,M,G,T,P} (133120-31116287, default 31116287):

Created a new partition 2 of type 'Extended' and of size 14.8 GiB.

Verify:

Command (m for help): p
Disk /dev/sda: 14.9 GiB, 15931539456 bytes, 31116288 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x00000000

Device     Boot  Start      End  Sectors  Size Id Type
/dev/sda1         2048   133119   131072   64M 83 Linux
/dev/sda2       133120 31116287 30983168 14.8G  5 Extended

Related commands

• pvresize
• lvextend
• virt-resize
• parted
• resize2fs
• blkid

See also

• gdisk
• Block devices, partition, GUID Partition Table (GPT), fdisk, parted, Kpartx, partition, /proc/partitions, blockdev, mkfs, partprobe, diskpart (Windows), fdisk -l /dev/nbd0
• Block devices: blkid (UUID), lshw -class disk, hwinfo --disk, udevadm, rescan-scsi-bus.sh, LUN, hdparm, findfs, Add a new disk
• lsblk, pvscan lspci, lsscsi, smartctl, fdisk, parted, Kpartx, pvdiplay, pvs, udisksctl, /dev/sd, nvme list
• LUN PV