SMP support with the scyld package

[Carpenter, Dean]

Ah ha.  OK, I found that on the CD, and installed it

	rpm -i kernel-smp-2.2.17-33.beo.i686.rpm

No problem, and I see the new kernel in /boot and the modules in
/lib/modules/2.2.17-beosmp.

So I change /boot/vmlinuz to point to the new kernel, and then create the
netboot image ...

	beoboot -d -2 -n -k /boot/vmlinuz-2.2.17-33.beosmp -m
/lib/modules/2.2.17.beosmp

That chews for a little while, and the debug output looks OK.  I noticed
that it recreated the /var/beowulf/boot.img file though ...  Why ?

In any case, I reboot on of the dual nodes with the *existing* boot floppy
(created last week from beosetup gui) and it appears to come up OK, but not
all the way.  The log shows that it's still trying to use the UP modules in
/lib/modules/2.2.17.beo.

Dang.  I thought the phase 1 kernel on the floppy was a generic one (from
/boot/vmlinuz.beoboot, which is just a symlink to
vmlinuz-2.2.17-33.beobeoboot :) just to get to the master node to boot the
"real" kernel - the smp one just installed.  Hmmm, OK, recreate the floppy
from the gui.  I don't think it should be different, but just in case.

This is worse.  It dies while loading vmlinuz, asking for another boot disk.

Ah ha (again).  I just noticed module-info in /boot, pointing to the UP
modules-info-2.2.17-33.beo file rather than the smp one.  I just changed
that and rebooted a couple of the dual nodes.  We'll see.

Nope.  Systems booted from the old floppy still try to use the UP modules in
/lib/modules/2.2.17-33.beo

So where exactly do all the kernels fit in ?

/boot/vmlinuz-2.2.17-33.beobeoboot	aka vmlinuz.beoboot
/var/beowulf/boot.img			What's the connection between these
for the floppy ?
/boot/vmlinuz-2.2.17-33.beosmp

Sorry for being thick here ...

--
Dean Carpenter
Principal Architect
Purdue Pharma
dean.carpenter at pharma.com
deano at areyes.com
94TT :)


-----Original Message-----
From: Jag [mailto:agrajag at linuxpower.org]
Sent: Monday, March 26, 2001 3:22 PM
To: Carpenter, Dean
Cc: 'beowulf at beowulf.org'
Subject: Re: SMP support with the scyld package


On Mon, 26 Mar 2001, Carpenter, Dean wrote:

> Hummm.  I see that it ships with the 2.2.17 sources, but I don't see any
SMP
> kernels lying around ...

It's in the kernel-smp package.
ftp://ftp.scyld.com/pub/beowulf/current/RPMS/i686/kernel-smp-2.2.17-33.beo.i
686.rpm