Helllo Martin and Arnt,
Thanks for the replies.
I better explain myself and my reasoning a bit. I fully agree that you are
quite correct in that the ram load up is quicker directly from the HD than
over a network, but I am aiming to do away with Hds in the FG sim boxes.
First, re my mention of speed, I am meaning the running of the whole os and
FG entirely in ramdisk after boot, the pc being "ramed up" a bit more than
normal to have room, so I mean fast in respect that after boot, the whole
show is in ram.
Secondly, I meant fast in the respect that a new system install is far
quicker than from a dvd, especialy the hassle of burning them, and latter
having problems with reading them. Sorry I was a bit off subject and unclear
before.
Thirdly I mean quicker than running the system on a thumbstick. For about a
year I have had FG2 on suse11.2 running on a Kingston 8gb data traveler with
no HD at all, its good, easy to install and runs ok, possibly bit slower to
boot up, but its only a matter of time before the stick write will definetly
wear out. I think its a reasonable quality thumbstick but may be wrong.
I planed to use the stick as the basis to load a ram based install, so
seeing it worked ok as the system drive and intending to work on the ram
disk aspect, I brought 4 more of these same Kinsgton 8 gb sticks for the
remaining pcs in my FG setup, only to find on delivery they looked a bit
different, unfortunatly they were also somehow different inside and till now
impossible to make bootable unlike every other stick I have tried.
Thus I figured, better and cheaper to have everything come from one server
sitting on terra firma, HDs are not a realistic option for me because of the
motion.
On the same score, as Arnt mentions,I guess SSDs would be the best way, and
a lot easier to implement from this point, last I looked the prices were
abit scary though?
I will download a Debian live image, search out soem documentation and
howtos for it and have a play. Without opening a can of worms about Os's , I
have used suse since v5 or 6, but make no claim its better than any other,
just the devil i am most familar with. Would Debian be better than Suse for
this for any particular reason. Assuming both are recent releases.
Arnt could you also breifly explain your mention of clustering in Debian
live?
I guess if possible I would like to stay with as close as possible to a
normal upto date off the shelf linux release, one that can be installed in
the normal HD, have everthing required installed complied, set up and
configured , the finally sort of "cloned off" with minimal modification to a
ramdisk. I thought a patched initrd would make this easy enough and keep
hacks to a minimum? This means the OS can easily be updated with the
development of FG.
regards Harry
On Mon, Jan 17, 2011 at 7:21 PM, Arnt Karlsen <a...@c2i.net> wrote:
> On Mon, 17 Jan 2011 09:46:04 +0000 (UTC), Martin wrote in message
> <ih134s$q03c$1...@osprey.mgras.de>:
>
> > Harry Campigli wrote:
> >
> > > Could I ask if any one has had FG or for that matter any app on a
> > > linux box running in a ramdisk environment with no Hd? Why, its
> > > fast to boot, [...]
>
> ..I have, a few years back, quickest way this far was simply put
> FG on a remade Knoppix style iso on harddisk ;o), then boot that
> image "from:/path/to/iso toram", AFAIR, this was before Knoppix
> "knew" how to keep data past reboots and on 384MB + swap. ;o)
>
> ..Debian Live, is the way to go here, it's a lot easier to set up.
> Also possible to play with clustering, single boxes has hardware
> limits that can be piled way up in clusters. ;o)
>
> > I might be getting your intention wrong, yet I suspect you forgot to
> > add the time required to fill the ram disk from, well, from network.
>
> ..takes a Gigabit or better nic to beat reading an harddisk to ram.
>
> > Are you really talking about "ramdisk", in the sense of "use a portion
> > of RAM and mount it as a filesystem" or maybe "flash-disk" instead ?
>
> ..ooo, SSDs would be wicked fast, though.
>
> --
> ..med vennlig hilsen = with Kind Regards from Arnt Karlsen
> ...with a number of polar bear hunters in his ancestry...
> Scenarios always come in sets of three:
> best case, worst case, and just in case.
>
>
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