How to display all partitions in the computer in unix

This howto will display all the partition of all hard drives in your computer mounted or unmounted.

Tools

• df - man df
• mount - http://linux.die.net/man/8/mount
• fdisk -
• blkid -
• lsblk -

Methods

Using /proc/partitions

1. Execute: cat /proc/partitions
   • or open it in any text editor,viewer or pager
2. Example output:

major minor  #blocks  name
  3     0   40209120 hda
  3     1   24579418 hda1
  3     2      72292 hda2
  3     3    3092512 hda3
  3     4   12458407 hda4
  3    64   78150744 hdb
  3    65   78148161 hdb1
 22    64   30015216 hdd
 22    65   30009388 hdd1
 33     0   40146624 hde
 33     1   40146403 hde1
 33    64   19551168 hdf
 33    65   19551073 hdf1

Using df

The df command will only show you mounted partitions, but can give you useful information. See man df for the many useful options

Example output:

Filesystem              1K-blocks      Used Available Use% Mounted on
rootfs                  110993628  96457144   8978528  92% /
/dev/root               110993628  96457144   8978528  92% /
tmpfs                     1284140      2312   1281828   1% /run
rc-svcdir                    1024        84       940   9% /lib64/rc/init.d
cgroup_root                 10240         0     10240   0% /sys/fs/cgroup
udev                        10240         0     10240   0% /dev
shm                       1284140         4   1284136   1% /dev/shm
/dev/sda2                 1032088    438276    541384  45% /boot
192.168.2.2:/mnt/HD_a2/ 960404328 128027208 832377120  14% /mnt/dlink_nas_vol2

Using mount

The mount command will only show you mounted partitions, but will give you all the details of the mount

• Execute: mount -l
• Example output

rootfs on / type rootfs (rw)
/dev/root on / type ext4 (rw,noatime,user_xattr,barrier=1,data=ordered)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
tmpfs on /run type tmpfs (rw,nosuid,nodev,relatime,mode=755)
rc-svcdir on /lib64/rc/init.d type tmpfs (rw,nosuid,nodev,noexec,relatime,size024k,mode=755)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
cgroup_root on /sys/fs/cgroup type tmpfs (rw,nosuid,nodev,noexec,relatime,size0240k,mode=755)
cpuset on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cset)
cpu on /sys/fs/cgroup/cpu type cgroup (rw,nosuid,nodev,noexec,relatime,cpu)
cpuacct on /sys/fs/cgroup/cpuacct type cgroup (rw,nosuid,nodev,noexec,relatimepuacct)
freezer on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatimereezer)
udev on /dev type tmpfs (rw,nosuid,relatime,size=10240k,mode=755)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620)
shm on /dev/shm type tmpfs (rw,nosuid,nodev,noexec,relatime)
/dev/sda2 on /boot type ext2 (rw,noatime)
usbfs on /proc/bus/usb type usbfs (rw,noexec,nosuid,devmode=0664,devgid=85)

Using fdisk

• Execute: fdisk -l
  • you may have to run this as root
• Example output

Disk /dev/sda: 160.0 GB, 159998918144 bytes
255 heads, 63 sectors/track, 19452 cylinders, total 312497887 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
Disk identifier: 0x56fcd9b7

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048    83888127    41943040    7  HPFS/NTFS/exFAT
/dev/sda2        83888128    85985279     1048576   83  Linux
/dev/sda3        85985280    90179583     2097152   82  Linux swap / Solaris
/dev/sda4        90179584   312497886   111159151+  83  Linux

Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 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
Disk identifier: 0xa8cdaecb

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1              63     1060289      530113+  82  Linux swap / Solaris
/dev/sdb2         2088450  1953520064   975715807+  83  Linux
/dev/sdb4         1060290     2088449      514080   83  Linux

Partition table entries are not in disk order

Disk /dev/sdc: 4095 MB, 4095737344 bytes
241 heads, 62 sectors/track, 535 cylinders, total 7999487 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
Disk identifier: 0x20202020

   Device Boot      Start         End      Blocks   Id  System
/dev/sdc1              63      160649       80293+   0  Empty
/dev/sdc2          160656     7999486     3919415+   b  W95 FAT32

Using blkid

• Execute: blkid
  • you may have to run this as root
• Example output

/dev/sda1: UUID="2C3822FE3822C6A4" TYPE="ntfs" 
/dev/sda2: UUID="0f6a17c9-a7d4-48eb-8740-f54c624121f3" TYPE="ext2" 
/dev/sda3: UUID="8b083002-4f78-4b6f-8fd7-7d8bbcbd1b6c" TYPE="swap" 
/dev/sda4: UUID="29127f13-f7e4-4189-b3e6-efa2f7ad9dca" TYPE="ext4" 
/dev/sdb1: TYPE="swap" 
/dev/sdb2: UUID="47cb8357-ddf6-42ea-9c64-9add6c49a157" TYPE="ext2" 
/dev/sdb4: UUID="3d352bc0-4936-42f0-a8f6-8235d89c02e2" TYPE="ext2" 
/dev/sdc2: LABEL="VAMPIRE HAR" UUID="B0EC-1054" TYPE="vfat" 

Using lsblk

• Execute: lsblk
• Example output

NAME   MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda      8:0    0   149G  0 disk 
├─sda1   8:1    0    40G  0 part 
├─sda2   8:2    0     1G  0 part /boot
├─sda3   8:3    0     2G  0 part [SWAP]
└─sda4   8:4    0   106G  0 part /
sdb      8:16   0 931.5G  0 disk 
├─sdb1   8:17   0 517.7M  0 part 
├─sdb2   8:18   0 930.5G  0 part 
└─sdb4   8:20   0   502M  0 part 
sdc      8:32   1   3.8G  0 disk 
├─sdc1   8:33   1  78.4M  0 part 
└─sdc2   8:34   1   3.8G  0 part 

Related

• Guide into free partitioning software for your hard drive

From HowTo Wiki, a Wikia wiki.