At Tue, 06 Jul 2010 18:41:06 +0800 CentOS mailing list <centos@xxxxxxxxxx> 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?
/dev is mounted from a *ramdisk* -- swapping to a RAM disk makes really
no sense.
With a modern (eg 2.6 kernel w/udev), /dev is created fresh at boot time
and only contains device node files, generally created on-the-fly by udevd.
>
--
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