[CentOS] why i can not put my swap files in /dev?

Tue Jul 6 14:01:10 UTC 2010
m.roth at 5-cent.us <m.roth at 5-cent.us>

Jerry McAllister wrote:
> On Tue, Jul 06, 2010 at 06:41:06PM +0800, Tang Jianwei wrote:
>> I tried to create some swap files in /dev directory for my desktop.
>> the dd and mkswap were ok. but when I try to swapon it, i get this:
>> # swapon /dev/myswap
>> swapon: /dev/myswap: Invalid argument
>> but when I mv the file to some other directory like /mnt or /, the
>> swapon works.
>> could sb. tell me why?

Well, /dev is *not* a good place for anything but device files.
> /dev is not a real directory for data files.
Um, er, what do you mean about it not being a "real" directory?


When I hear about object oriented systems, I think of one that's been
around for about 40 years: *Nix. Everything's a file, er, "object", and
you pipe, er, message from one object to another....