Modify the tmpfs size in Oracle Linux (OEL) and make it take effect

In Oracle Linux, the size of tmpfs is increased to MB to 3 GB (note: the initial value is half of the memory)

First Change/etc/fstab to change the tmpfs size to 3 GB

Add size = 3G after tmpfs,

OK,/etc/fstab is edited, but OEL is a little different from RedHat, but changing fstab is not enough. After the OS is restarted, tmpfs will still become the memory, so we need to change another configuration file/etc/rc. d/rc. sysinit

1. comment out the following statements

# Mount-f/dev/shm>/dev/null2> & 1)

2. Add tmpfs to the type,

Find this statement,

Add tmpfs to the type, for example:

So far, the size of tmpfs has been changed and the operating system is restarted.

Restart and verify the tmpfs size:

So far, tmpfs has been changed!