On Fri, 2010-03-26 at 00:53 +0900, Juan Diego wrote: > Good day everyone, > > I want to delete the next two lines from my fstab: > > none /dev/pts devpts defaults 0 0 > none /dev/shm tmpfs defaults 0 0 > > however I would like to know the secondary effects of doing such > thing, all the information I could get on the internet is that shm is > for POSIX shared memory support and that almost any program actually > use it, for devpts I couldn't find much information about it. > > does anyone knows if it is safe to remove those lines from my fstab? > > thank you. /dev/pts is required for virtual terminals like xterm, gnome-terminal and others. Without that filesystem you can't start a virtual terminal. /dev/shm is used for shared memory, it's a requirement for NPTL semaphore functions. Now that /dev is also on tmpfs, I don't know if it's harmful to remove. The main requirement is that this folder has 1777 permissions.