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Apply /dev/shm

The Shared Memory Device /dev/shm,shm = shared memory) is disabled since version 2.3 on IPFire. Some Addons such as Qemu uses */dev/shm. If multiple VMs run at the same time you should adapt the size of */dev/shm accordingly.

Loggon to IPFire directly or via SSH, and change the following line in /etc/fstab"

shm /dev/shm tmpfs default 0 0


shm /dev/shm tmpfs size=512m 0 0

After restarting the IPFire or remount the device the size of shared memory is raised up to 512 MB.

To remount the device type:

mount -o remount /dev/shm

Ensures that at least that much memory is available!

Edit Page ‐ Yes, you can edit!

Older Revisions • December 31, 2018 at 9:44 pm • Jon