Re: Query re: disk free (df) output
> Hey all
> Quick questions about the output of df -lh on a single-user Etch:
> Filesystem Size Used Avail Use% Mounted on
> /dev/hdb1 12G 3.7G 7.8G 32% /
> udev 10M 96K 10M 1% /dev
> devshm 443M 0 443M 0% /dev/shm
> /dev/hdb3 169G 4.3G 156G 3% /home
> What are "/dev" and why is "shm" a sub-folder of /dev mounted separately?
/dev is a tmpfs, that is, it is not stored on disk, but on RAM. This is due
to the small and volatile nature of the /dev tree when running under udev.
shm stands for SHared Memory, and I don't know specifically why it's there.
It seems like it is a way of passing data between applications via shm_*