On 02/21/2014 01:35 AM, joel kammet wrote:
> I've been wondering about the case statement in S00mountvirtfs that mounts 
> the virtual filesystems.
> 
> 
>       if ! mountpoint /run >/dev/null; then
>          mount /run || failed=1
> 
> and similar commands for proc sys and dev.
> 
> 
> I understand what the mountpoint lines are doing, but "mount /run" puzzles me.
> 
> 
> There are no fstab entries for these filesystems, so I would expect "mount 
> [device] [mountpoint]".
>

There are.

http://www.linuxfromscratch.org/lfs/view/development/chapter08/fstab.html

"tmpfs          /run         tmpfs    defaults            0     0"

> 
> Why does that command work without the [device] parameter?
> 


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