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http://forums.fedoraforum.org – I just noticed this in my "df" output: Code:     >df | grep tmpfs     tmpfs                  224224        0    224224  0% /dev/shm There's an entry in /etc/fstab which mounts this automatically. If I interpret that correctly, that's a 224 mbyte ramdisk that is consuming 224 mbytes of system memory whether or not I use it. Is that correct? If so, will anything break if I unmount it and delete it from /etc/fstab? Do programs typically depend on it? I'd like to reclaim the system memory (low DRAM machine) for other uses. (HowTos)