El Jue 10 Oct 2002 17:26, Jason A. Pattie escribi�:
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> There are other issues in the works here, too. You can get away with
> running LTSP (via NFS obviously) on a 386 with only 8MB of RAM. There's
> almost no way to get X into a 2MB compressed ramdisk. This is necessary
Yes, Netstation Image Kernel is with initrd
(filesystem+modules+XServer+ICA+etc...)and is with XFree4.2 and run very good
Its usa a cramfs image.
> because when all is said and done, the Linux kernel is downloaded into
> RAM (about 1 - 2 MB), then the initial ramdisk is downloaded which is
> somewhere around 2MB. The ramdisk contents in memory are then copied
> into a ramdisk proper and the ramdisk contents freed. This requires a
> total of 6MB to work properly. When I tried to work with a 3MB initial
> ramdisk image on the above machine, it failed to boot as it was copying
> the ramdisk contents from memory into the ramdisk device (which is also
> in memory, obviously). This of course poses a problem that cannot be
> solved without installing more memory. And this was using NFS for
> portions of the root filesystem. If you have the memory (i.e., 64MB or
> more), you can easily come up with a fully functional initial ramdisk
> image to run the workstation from with all the nice functionality you
> want.
Netstation work with a tmpfs filesystem for configuration files what are make
on boot (XF86Config, hosts, resolv.conf, app.ini for ICA,etc..)
If you use a compressed RAM filesystem, you can get away with
> having around 60-64MB of file storage in your filesystem that runs the
> workstation in memory depending on the compression ratio you achieve. I
> usually get around 2:1 compression, but generally a little less. This
> allows for you to successfully have a filesystem that is slightly less
> than the entire size of the amount of RAM you have in the system
> (assuming you want to share the RAM evenly). If you determine that you
> need less RAM to run the apps the workstation will be using (say 16MB),
> then of course you can increase the amount of files and storage your
> initial ramdisk uses (i.e., 48MB) which gives you an effective
> filesystem size of 48MB * 2 = 96MB <--- !!! greater than the physical
> size of memory you have installed. Pretty neat! 16MB should be plenty
> to run X windows with a remotely displayed VNC desktop. You might be
> able to get away with a remote XDMCP session running a lightweight
> window manager and very (and I mean very) few windows/applications open.
> Unless you were to implement swap space, your XDMCP session will crash
> a lot on you unexpectedly, simply because the workstation will run out
> of memory that X needs to cache things and the kernel will kill of
> processes to free resources and X is usually the one that gets it.
Netstation run as local app X,ICA,VNC,RDESKTOP,Supermount
I think that this feature (initial ramdis with fs,X and app) is very
powerfull.
Only is my personal idea, but LTSP is very powerfull too.
>
> [EMAIL PROTECTED] wrote:
> > Antonio R. Barbado Portillo wrote:
> >> In Netstation project , thin clients boot about RAMDISK INITRD only.
> >> Why LTSP do not take this feature??? A real thin client not need a FS
> >> and not run local app. This feature is better or no? Its more effective.
> >
> > Unless I'm mistaken, LTSP does use initrd, which most certainly does
> > contain a file system. Clients do need to run at least one app locally
> > (after all the boot-up scripts in initrd), either telnet or an X server.
> > Since the executables are in files, a file system is required. Since all
> > the files involved total to a sizable amount, they are not stored on a
> > diskless client. Instead, they are stored on a server, so the Network
> > File System is used to access them.
> >
> > I'm sure something other than NFS could be used, but whatever it was
> > would have to solve the same problem of providing a file system over a
> > network.
>
> - --
> Jason A. Pattie
> [EMAIL PROTECTED]
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