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include /dev/shm in /etc/fstab?

edited Jan 21, 2015 10:47AM in Linux Operating System (MOSC) 1 commentAnswered

Hello,

I'm currently configuring Oracle Linux 7 in order to install Grid Infrastructure.

At page 4-23 of Oracle Grid Infrastructure Installation Guide (E48914-13), section 4.12 (Checking Shared Memory File System Mount on Linux), manual says /etc/fstab should include a line associated with /dev/shm in /etc/fstab file.

I don't have it in my installation and it doesn't seem to be a problem. the df -h command displays /dev/shm associated with tmpfs FS.

So my question is:

Do I really need to include a line for /dev/shm in my /etc/fstab file or is it only required if I want to modify the default size value of /dev/shm (currently around 50% of RAM)?

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