VPS creation and deletion swap partitioning method

Root permissions are required for all operations

1. Create swap swap partitions
First view the hard disk partition with Fdisk-l

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fdisk-l defaultdisk/dev/sda:21.5 GB, 21474836480 bytes 255 heads, 6 3 Sectors/track, 2610 cylinders Units = cylinders of 16065 * 5 = 8225280 bytes Sector size (logical/physical): bytes/512 bytes I/o size (minimum/optimal): bytes/512 bytes Disk identifier:0x00097743  &N Bsp Device boot      start         End       blocks   id  System /dev/sda1   *            1        2481    19922944    83  Linux

Only one partition.

Create a new partition for swap swap.

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Fdisk/dev/sda [Root@itnmg ~]# FDISK/DEV/SDA Warning:dos-compatible mode is deprecated. It ' s strongly recommended to Switch off "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 delete a partition L list known partition types The M Print this menu displays the Help menus n Add a new partition create a new partition o Create a new empty DOS partition table P Print the partition table shows the partition tables Q Quit without saving changes do not save exit s create a new empty Sun Disklabel t change a partition ' s system ID changes partition type U Change display/entry units V Verify the partition table W Write table to disk and exit save exit X Extra functionality (experts only) Command (M for help):

What we often use is the Chinese to mark out those.

Enter N to create a new partition

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DefaultCommand (M for help): N Command Action E Extended P primary partition (1-4)

Choose to create an extended partition or primary partition, where we select the primary partition and enter P

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Defaultp Partition number (1-4):

Enter the partition number, 1-4, because there is a sda1, so enter 2

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Defaultpartition number (1-4): 2 The cylinder (2498-2610, default 2498):

Enter the starting position, do not change here, direct return.

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Defaultusing Default Value 2498 Last cylinder, +cylinders or +size{k,m,g} (2498-2610, default 2610):

Enter +200m, set to 200M size.

No back information at this time, and then enter P to view the partition.

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Default    Device boot      start         End       blocks   id  System /dev/sda1   *            1        2497    20056128   83  Linux /dev/sda2             2498        2523      208845   83   Linux

A new partition has been created, input W save exit. The partition is reloaded after exiting.

Create a swap on a new partition

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Mkswap/dev/sda2 Swapon-a

Set up system self-enabled swap files, edit/etc/fstab files, add the following

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/dev/sda2 Swap Defaults 0 0

Free-m Viewing effects

2. Delete the swap partition

Deactivate swap partition

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Swapoff-a

Delete a swap partition

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Fdisk/dev/sda

This is similar to the increment operation, except to delete the partition instead, enter D

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Partition number (1-4):

Enter the partition number you want to delete, 2

Enter P to view the partition and has been deleted.

Enter W save exit.

Modify/etc/fstab file, delete/dev/sda2 swap defaults 0 0 Save

Note:

Install the Linux operating system VPS Add swap partition (only the VPS using Xen virtualization technology can, currently OPENVZ does not support the addition of swap).