Install now, upgrade later?
djgroos at gmail.com
Sat Mar 20 16:34:51 GMT 2010
I find I'm not using the server kernel which surprises me--isn't that
the one that the 'alternate CD' used? Shouldn't that be the standard
install for a thin client server using Edubuntu?
So, how do I go about installing this kernel? I used the link that
Alkis provided and I could download the kernel. I couldn't access it
via Synaptic, probably because I've set sources to Jaunty but I
wasn't sure how to set some to Karmic. Any link/suggestion would be
appreciated! I don't want to willy-nilly upgrade a kernel, sounds
like risky business.
On Mar 19, 2010, at 4:35 PM, ekul taylor wrote:
> uname -r
> which will tell you the specific build of the kernel you are
> running. If the PAE kernel is in use it will have -pae in the
> name. if you don't see that you'll need to install the linux-
> server package.
> You can also run free -m as a check to ensure all your ram is being
> addressed. However much you think there is should match the total
> column in MB. If it doesn't something isn't quite working.
> On Fri, Mar 19, 2010 at 5:07 PM, David Groos <djgroos at gmail.com>
> Thanks Ekul for the further info, I get it now. I think I'll use
> solution #1 below--sounds like it is doable and will help out with
> what I need for these last couple of months of school then over
> summer power-up with a new Lucid install. I'm pretty sure I'm
> currently using the server install. How can I tell?
> On Fri, Mar 19, 2010 at 8:35 AM, ekul taylor
> <ekul.taylor at gmail.com> wrote:
> The 32/64 bit question is very complicated. Hopefully I can help.
> Any AMD Opteron or Intel Xeon server made in the past few years has
> support for running 32 bit and 64 bit code (even at the same
> time). So you could clone your existing server and it would work
> fine but you might not be able to take advantage of all of your RAM.
> If you have more then 4 GB of RAM you have 3 options to use it all:
> 1. Clone your 32 bit server install but install the linux-server
> package if it isn't already used. This kernel is PAE enabled which
> is something Intel developed to let 32 bit processors address more
> then 4 GB of RAM. It does have slight performance issues and no
> one process can address more then 4 GB of RAM but for a terminal
> server this isn't important.
> 2. Clone your 32 bit server but install and run a 64 bit kernel.
> This can be tricky dependency-wise so I wouldn't recommend it so I
> won't outline the many steps here.
> 3. Install a 64 bit version of edubuntu and reuse your
> configuration files from your old server. It's pretty easy to do
> since except for /etc/modules.d and /etc/modprobe.conf none of the
> config files are about the kernel. You do have to build your
> chroot a little differently if you use this option as thin clients
> will almost certainly need a 32 bit boot environment. To do this
> you use the command:
> ltsp-build-client --arch i386
> instead of just ltsp-build-client. This is what I option I would
> use when installing lucid but if you're just going to be using
> karmic for a few months option 1 will involve the least setup.
> On Fri, Mar 19, 2010 at 9:11 AM, David Groos <djgroos at gmail.com>
> Confusion compounds...
> the one thing I might have understood...
> If you install this kernel in Jaunty/Karmic, then you can access more
> than 4 Gb of RAM while having 32 bit systems/OS:
> So you can do that either in the old or the new server.
> You're saying that:
> --I could install the above kernel onto my current 32 bit hardware.
> --then I could either:
> --------install up to 64 Gb RAM on old server
> --------then I could clone this new setup to the new server.
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