| I will try the partition scheme on monday, thanks.
I like so much the way to switch about the two operative systems with the Network Boot Manager. Anyone ho have worked with this, can say if it can be easy to add an option to boot from an specific option on grub ?
I've seen the option localbot: [EMAIL PROTECTED]:/tftpboot> cat localboot DEFAULT localhost
LABEL localhost LOCALBOOT 0
What it's de meaning of LOCALBOOT 0, it specify the hard drive that boots?
Thanks, Adrià El 05/10/2006, a las 21:11, Michael Edwards escribió: I don't think you should have to change the systemimager scripts, I believe the only file you would need to change is $OSCAR_HOME/oscarsamples/ide.disk (for example).
Currently it reads:
/dev/hda1 24 ext3 /boot defaults
/dev/hda5 128 swap
/dev/hda6 * ext3 / defaults
nfs_oscar:/home - nfs /home rw
If you change this to:
/dev/hdc1 24 ext3 /boot defaults
/dev/hdc5 128 swap
/dev/hdc6 * ext3 / defaults
nfs_oscar:/home - nfs /home rw
I think this should make it only touch the hdc drive, and nothing else.
As to the second question, I think it will be a huge amount of trouble, but you should be able to do it with a lot of fiddling. For example, your grub script will work fine for switching from linux to windows, but how do you switch back since you don't have direct write access to the linux partition? So you'll have to mount the linux drive somehow (I believe there are utilities for doing this) and then make a script for switching to linux that windows will recognise and run.
netbootmgr (a utility which comes with Oscar 5.0) might be able to help with this problem? When you use netbootmgr the nodes are always booted off the network and the netbootmgr tells them what to actually boot to. It is a very handy tool, but I don't know if it would be able to direct the nodes to boot into windows. I would think it should be able to do anything grub was able to do in theory though.
On 10/5/06, Adrià Forés <[EMAIL PROTECTED]> wrote: Thanks for reply, so fast :D
For this reason, now I have two computers for testing the
configuration. If during the tests windows it's erased , there are no
problem :). For install oscar on /dev/hdc I have seen that changing
something in /var/lib/systemimager/scripts/the-name-of-node1.sh it can
be factible. I don't know if I have to change something in
autoinstallscript.conf also.
About the second question, I will question to us if you tink it's a
good way for manage the hybrid cluster. (a script on the two operative
systems for modify the default OS to load on grub).
Thanks,
Adrià
2006/10/5, Michael Edwards < [EMAIL PROTECTED]>:
> I believe you would only have to change the partition file for the client
> nodes to reflect the desired disk setup. I am not positive that it won't
> blow away the windows partition anyway though. I keep meaning to try this
> sort of thing, but I haven't ever gotten around to it.
>
> You will likely have to set up the grub.conf for the nodes by hand later,
> but you were planning on doing that anyway, so its not a big loss.
>
>
> On 10/5/06, Adrià Forés <[EMAIL PROTECTED]> wrote:
> >
> > Hi!
> >
> > I'm a last year student of computer sience on the girona university
> > (spain). I have to do my final project for the degree and I have to
> > design and implement a high performance cluster and later do a paralel
> > algorithm about radiosity.
> >
> > Now I have two computers from another department for make tests. And I
> > will have access to a windows cluster of 4 hp proliant dl145 (dual
> > opterons :D ).
> >
> > The cluster will use oscar. I will put on each computer an extra hard
> > drive, the existing for windows, and another for linux. The machines
> > are on a rack, with this only the headnode have monitor, mouse and
> > keyboard.
> >
> > I'm looking for the modifications that I have to do for install oscar
> > on /dev/hdc. Anyone knows what are the files that I have to modify and
> > what I have to change for this ?
> >
> > Now I'm planning how to change the operative system of the cluster.
> > Because I can use grub (the boot loader) on the headnode, but I don't
> > want to plug keyboard ant monitor on every machine for choose the
> > operative system. For that problem, I've thinked about modify the
> > grub.conf file when you want to change your operative system (with a
> > script, logicaly).
> >
> > This script will put on all the nodes the default boot operative
> > system linux or windows. For example, if I'm on linux and I want to
> > work with windows cluster, I will put all the boot loaders on windows
> > default. I have to test this. And the little problem is in windows
> > (make the change), I've seent that I can install openSSH and a driver
> > for ext3 filesystems on windows (I will test this during next week,
> > probably).
> >
> > What do you think about my idea? Any better way for this ? ;)
> >
> > I don't know if you will understant this, I don't have a perfect english,
> sorry.
> >
> > Thanks,
> > Adrià
> >
> >
> > --
> > ________________
> >
> > [EMAIL PROTECTED]
> > http://www.paladi.com
> >
> >
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