Differences

This shows you the differences between two versions of the page.

--- swap:enabling_swap [2016/11/16 16:49] – created peter
+++ swap:enabling_swap [2019/12/04 21:44] (current) – removed peter
@@ Line 1: / Line 1: @@
-====== Swap - Enabling swap ======
-check to see if you have swap partitions defined by consulting **/etc/fstab**.  If you do then
-<code bash>
-grep swap /etc/fstab
-</code>
-Returns something like this.
-<code>
-UUID=14a0f7b9-dabb-4296-b0e7-013527a7d82d none swap sw 0 0
-</code>
-If one is defined you can check that it is being used by the system:
-<code bash>
-swapon -s
-</code>
-Returns
-<code>
-Filename Type Size Used Priority
-/dev/sda6 partition 1004020 215532 -1
-</code>
-If one is defined but not in use the obvious thing to do is check that it is formatted as a swap partition:
-<code bash>
-sudo fdisk -l /dev/sda
-</code>
-Returns
-<code>
-[..snipped..]
-/dev/sda5 3842 6595 22121473+ 83 Linux
-/dev/sda6 6596 6720 1004031 82 Linux swap / Solaris
-</code>
-If it is a swap partition, ready it for use and turn it on. At this point, you might see any errors that prevented its use.
-<code bash>
-su -
-mkswap /dev/sda6
-swapon /dev/sda6
-</code>
-You can now check that the partition is being used using the "swapon -s" command we saw above.
-Add an entry to /etc/fstab to have this swap partition loaded at bootup. You can replace the "UUID=xxx" part from above with "/dev/sda6"; so the entry would look like this:
-<code>
-/dev/sda6 none swap sw 0 0
-</code>
-If you didn't define a swap partition earlier, then you'd have to create one, or point swap to a regular file (which is a little less efficient, but probably sufficient).