[R7800] can I increase the size of /dev/shm ?

[R. Gerrits]

Hi all,

I'm hoping someone here can quickly answer this: Can I increase the size of the /dev/shm filesystem on a R7800 running Voxel's firmware?

Normally, one could do this in /etc/fstab, but that file doesn't exist.

I did find that /etc/preinit has these lines:

mount -t tmpfs tmpfs /dev -o mode=0755,size=512K
[ -d /dev/shm ] || mkdir -p /dev/shm

I did try increasing the size there. But preinit is executed before the overlay (with my changes) is mounted so that has no effect.


Reason why I want it bigger: I'm trying to get Pihole (v5.0 beta) to run directly on my R7800 via Entware.
I've got almost everything working, except for the issue that after a few hours, /dev/shm is full and then pihole-FTL crashes.

 

[R. Gerrits]

nevermind, I think I've found a solution.
As shm is just a folder on the tmpfs /dev, I'll just mount a new and bigger tmpfs on /dev/shm via :

mount -t tmpfs tmpfs /dev/shm -o mode=0755,size=32M