[Ubuntu] Memory 부족

It means you do not have enough memory to execute the operation.

Since it is a dpkg error, try to configure.

$ sudo dpkg --configure -a

But if you are still getting the error.

Check the free and used physical memory in megabytes by following command.

$ free -m

It displays the total amount of free and used physical memory and swap space in the system, as well as the buffers and cache consumed by the kernel.


Flush file system buffers by executing :

$ sync

Now try again.

If you are still facing the same problem, follow this.
To free page cache:

$ echo 1 > /proc/sys/vm/drop_caches

To free dentries and i-nodes :

$ echo 2 > /proc/sys/vm/drop_caches

To free page cache, dentries and i-nodes :

$ echo 3 > /proc/sys/vm/drop_caches