At Tue, 06 Jul 2010 22:30:10 +0800 CentOS mailing list <centos at centos.org> wrote: > > > > In the past I only heard that /proc and /sys are "RAM directories", now /proc and /sys are psuedo directories -- they hook into kernel data structures. > I get /dev as well. thank you. With 2.6 kernels and udev, /dev has become a RAMDISK that is freshly populated at boot time by udevd and related code (HAL and the hotplug system). > > Tang Jianwei > > > On 07/06/2010 10:14 PM, John Kennedy wrote: > > > > > > On Tue, Jul 6, 2010 at 10:01 AM, <m.roth at 5-cent.us > > <mailto:m.roth at 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 > > > > > > _______________________________________________ > > CentOS mailing list > > CentOS at centos.org > > http://lists.centos.org/mailman/listinfo/centos > > > > MIME-Version: 1.0 > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > > -- Robert Heller -- 978-544-6933 Deepwoods Software -- Download the Model Railroad System http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows heller at deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/