http://svn.oscar.openclustergroup.org/trac/oscar/wiki/SystemImager
http://svn.oscar.openclustergroup.org/trac/oscar/wiki/DeleteImage
http://svn.oscar.openclustergroup.org/trac/oscar/ticket/13
From: Steven Blackburn [mailto:[EMAIL PROTECTED]
Sent: Sun 23/07/2006 08:09
To: Bernard Li; [email protected]
Subject: RE: [Oscar-devel] Anyone had problems with sis and monitor_server?
Bernard,
I can raise a bug, although the reason I assumed
the
type was the issue is that on the first image (using
the ide.disk,
SystemImager said it couldn't find a
init partition to install on. At least I
think that
was the gist of the error (I will make a better note
of the
error if it happens again). I did notice that
the partition layout didn't
resemble the one in
ide.disk, so figured it needed the scsi
one.
Regarding the MONITOR_SERVER problem: perhaps I am
showing my
lack of networking knowledge, as I believed
that each NIC had an IP and would
only accept traffic
for that IP. On this system, the external IP is
on
eth0, the internal one is on eth1. Nodes are only
connected to eth1 on
the head (by their eth0).
Maybe that was a red herring, because the last
error I
saw was about failing to connect to the network, and
scrolling to
where the kernel is booted displayed the
external IP address, which I wasn't
expecting.
I am selecting UYOK, as I had to with the r5122
oscar
build, so the installer finds my SATA disk. The head
and the nodes
are the same mobo, with the head having
an additional network card.
I
would be glad to post imaging logs, but I have to
hand-write it as it fails
before connecting to the
monitor server. On booting, nothing looks
particularly
out of place until two lines after "Autodetecting
RAID
arrays.". There is a:
RAMDISK: Compressed image found at
block 0
RAMDISK: Incomplete write (-28 != 32768) 81920000
It
then mounts root readonly, frees unused kernel
memory (200k), write protects
kernel read-only data
(919k). The next lines are:
Attempt to
access beyond end of device
ram0: rw=0, want=163872,
limit=160000
EXT2-fs error (device ram0): ext2_get_inode: unable
to
read inode block - inode=1623, block=81935
There are two more errors
before it gives up:
Killing off running processes.
write_variables
[autoinstall system failed blurb]
Installation failed!! Stopping report task.
nc: connect: Network
unreachable
nc: connect: Network unreachable
So is this saying
the ramdisk is too small? The initrd
image in tftpboot is 15.6mb and the
kernel is 1.8mb,
although I assume these are compressed but don't know
how
to uncompress them (or even get a file
listing).
Cheers,
Steve.
PS: Is there a simple way to wipe
the state data for
OSCAR, e.g. which images have been built, which
clients
have which images? Sort of like the start_over
script but which is designed
to take the setup back to
step 4 (i.e. just after oscar packages have
been
built).
--- Bernard Li <[EMAIL PROTECTED]> wrote:
> Hi
Steve:
>
> Actually it doesn't really matter whether you
use
> ide.disk or scsi.disk, they will both be treated the
> same as
SystemImager knows how to automatically
> detect what type of disks you
have, so in a sense it
> is only used as a template. I think we
should
> probably make this more clear so that users will not
> run
into the same issue... if you do not mind, can
> you please file a
bug on this?
>
>
http://svn.oscar.openclustergroup.org/trac/oscar/newticket
>
>
Regarding the MONITOR_SERVER issue, it again doesn't
> matter whether it
goes to the external or the
> internal address, your clients will be able
to reach
> it nevertheless. Again, perhaps we should change
>
this so that it uses the internal IP, can you file
> another issue?
:)
>
> It would help if you can post more log messages
>
during imaging. I'm not sure if you have tried
> enabling UYOK
during "Setup Networking" step. If
> your headnode's nic is
different from your compute
> node's nic, then you'll need to modprobe the
module
> on the headnode before hitting "Setup Network
Boot".
> Anyways, report back more with log messages then I
>
can give you further details.
>
>
Cheers,
>
> Bernard
>
>
________________________________
>
> From:
[EMAIL PROTECTED] on
> behalf of Steven
Blackburn
> Sent: Thu 20/07/2006 17:05
> To:
[email protected]
> Subject: [Oscar-devel] Anyone had
problems with sis
> and monitor_server?
>
>
>
> I
am learning all the ways in how not to install a
> cluster, like leaving
the ide.disk layout but the
> nodes have SATA. I am using r5189 on a
"respun"
> Fedora
> Core 5 and having problems imaging the
nodes.
> SystemImager is failing with "Network is
>
unreachable"
> which, seeing as it grabbed SystemImager okay,
>
appears
> to be MONITOR_SERVER being set to the external IP
>
address of the head node (i.e. 192.... instead of
> 10....). Is this a
common problem? or did I do
> something stoopid (more
likely).
>
> I checked that I ran "./install_cluster eth1",
>
although I did make a second image and delete some
> nodes in the same
session - that is I didn't exit
> the
> wizard. Oh and I cancelled
building one of the
> images.
>
> I will rebuild the head
(again) this weekend and try
> to get a clean run through.
>
>
Thanks,
>
>
Steve.
>
>
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