TO DELETE SWAP PARTITION IN LINUX

To delete swap partition follow these steps:

  • First deactivate swap from that partition.
[root@localhost ~]# swapoff /dev/sda5
  • Now we will delete the swap partition
[root@localhost ~]# fdisk /dev/sda
The number of cylinders for this disk is set to 6198.
There is nothing wrong with that, but this is larger than 1024,
and could in certain setups cause problems with:
1) software that runs at boot time (e.g., old versions of LILO)
2) booting and partitioning software from other OSs
   (e.g., DOS FDISK, OS/2 FDISK)
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): d
Partition number (1-5): 5

Command (m for help): p
Disk /dev/sda: 50.9 GB, 50985402368 bytes
255 heads, 63 sectors/track, 6198 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        5099    40957686   83  Linux
/dev/sda2            5100        5736     5116702+  82  Linux swap / Solaris
/dev/sda4            5737        6198     3711015    5  Extended

Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table.
The new table will be used at the next reboot.
Syncing disks.

[root@localhost ~]# partprobe dev/sda
Error: Could not stat device dev/sda - No such file or directory.
  • Now if you check your partition will be deleted .
[root@localhost ~]# fdisk -l
Disk /dev/sda: 50.9 GB, 50985402368 bytes
255 heads, 63 sectors/track, 6198 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1        5099    40957686   83  Linux
/dev/sda2            5100        5736     5116702+  82  Linux swap / Solaris
/dev/sda4            5737        6198     3711015    5  Extended

Check out my video

 

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