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

In the past I only heard that /proc and /sys are "RAM directories", now I get /dev as well. thank you.

Tang Jianwei

On 07/06/2010 10:14 PM, John Kennedy wrote:

On Tue, Jul 6, 2010 at 10:01 AM, <m.roth@5-cent.us mailto:m.roth@5-cent.us> wrote:

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.
<snip>
Um, er, what do you mean about it not being a "real" directory?

         mark

I would say he means "real" as exists on a hard drive like /home of /var as opposed to "virtual" as exists in RAM like /proc. John -- John Kennedy

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