How to work with /dev/shm in Red Hat Enterprise Linux 7 and later

Solution Verified - Updated -

Issue

  • Which mechanism is mounting /dev/shm in RHEL7? After kickstarting a server it's mounted but it's not in /etc/fstab.
  • Where can I change the size for /dev/shm if it's no longer in /etc/fstab?

Environment

  • Red Hat Enterprise Linux (RHEL) 7 and 8

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