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[ts-7000] Re: How to use tmpfs on TS-Linux?

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Subject: [ts-7000] Re: How to use tmpfs on TS-Linux?
From: "j.chitte" <>
Date: Mon, 31 Mar 2008 00:11:58 -0000
--- In  "j.chitte" <> wrote:
>
> --- In  Jim Jackson <jj@> wrote:
> >
> > 
> > 
> > 
> > On Thu, 13 Oct 2005, Mike Dodd wrote:
> > 
> > > No. My board has no /dev/ram... devices. However, this doesn't 
> stop
> > > mount from mounting ramfs points:
> > >    mount -t ramfs none /mnt/my_ramfs -o maxsize=512
> > >
> > > This works perfectly; I can copy files to /mnt/my_ramfs and 
open 
> them
> > > in vi. Adding this line to /etc/fstab mounts the point at boot 
> time:
> > >    none  /mnt/my_ramfs  ramfs  maxsize=512  0  0
> > 
> > I've not come across ramfs before - always something to learn!
> > Certainly simpler than the way I've used in the past.
> > 
> > > So I think I'm getting close to what I need. I'm still curious 
> about
> > > tmpfs on the TS-7250 (since the Techologic document showed how 
it
> > > should work), but if ramfs works, I'll take that.
> > >
> > > Thanks for your information and suggestions.
> > 
> > ditto
> > Jim
> >
> 
> I have serious doubts about the maxsize option , my x86 system man 
> page says ramfs has NO options.
> 
> There are quite a lot of comments about it not working.
> 
> Needs to be used with caution !!
>

Hi,

close but not close enough.

I have a couple of ramdisks, automounting at boot and bound to two 
dirs in /www that will get heavy use:

$ mount
/dev/root on / type yaffs2 (rw)
none on /dev type devfs (rw)
proc on /proc type proc (rw)
none on /mnt/ramdisk1 type ramfs (rw)
none on /mnt/ramdisk2 type ramfs (rw)
none on /www/apache/htdocs/data type ramfs (rw)
none on /www/apache/htdocs/data_images type ramfs (rw)


I have some archived files I want to populate the ramdisk each 
reboot, I untar them at the end of /etc/rc.d/rcS.sysinit 

I get just one of several files in the .gz showing in the ramdisk 
location.


$ tar -tzf arch/init.data.gz
data_images
data_images/150tank-test.svg
data
data/adc.data
data/adc.data.gnulog
data/date-stamp.txt
data/adc.data.table
$ ls -ail data*
data:
drwxr-xr-x    1 root     root            0 Mar 31 00:00 .
drwxr-xr-x    1 root     root         2048 Jan  1  1970 ..
-rw-r--r--    1 sole     pat             0 Mar 29 10:21 adc.data.table

data_images:
drwxr-xr-x    1 root     root            0 Mar 31 00:00 .
drwxr-xr-x    1 root     root         2048 Jan  1  1970 ..


I'd find it easier to understand no files at all. Can someone point 
out what I'm missing?

TIA, js.



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