Hi All!

I've recently submitted a question about the UYOK option of the systemimager to
the users list. I was advised to try oscar 5, and to use this list for further
questions.
I've managed to install oscar5 but I've had problems installing it. I don't know
if these are bugs or features, but I thought I'd report them anyway.
Here's a description of my adventures:

We are using RHEL4.2. The nodes are SUN X4100. We need the UYOK option because
the scsi adapter on the x4100 needs drivers. Because of the UYOK thing, we used
an x4100 as a server also.

- The server had an oscar4.2 installation on it and that collided with the
oscar5 installation, though we tried the start_over script. We decided to do it
on a fresh linux installation.

- I remembered from previous versions that the install_cluster script installs
all the required RPMS that come with oscar (systemimager and such). It did not,
and it didn't even give a proper error message.
We installed the packages manually, though we had to guess which were needed
through the error messages of missing perl scripts etc. This wasn't documented
in the README or install guide.

- After install_cluster finally brought up the gui, there was a problem with the
installation of lam in the "install server packages" stage. It demanded some
prerequisites, even after ee've installed them manually. We had to give up on
lam (don't need it anyway).

- UYOK worked great (had to install syslinux manually, of course).

- We used the scsi.disk sample that comes with oscar. It names partitions 5 and
6. Problem was that the initrd that the systemimager created only has
/dev/sda1-3. Our workaround was to add mknod commands to the installation
script. I guess these files can be aded to the initrd image itself also.

- Of course we needed a proper initrd in the image itself too.
systemconfigurator creates an initrd file on the image, but for some reason it
did not contain the proper modules. We added a [HARDWARE] directive to the
systemconfigurator configuration file that's found inside the installation
script, but that did not work.

I thought kernel_picker takes care of the initrd on the image, but when we
executed it, it didn't touch the initrd. It also created in the image a link to
the Systemap that points to /val/lib/syste.../images/.../boot/Systemap-... which
is of course a mistake.
We copied the initrd from the server to the image, but systemconfigurator
naturally points to its own created initrd file, so we had to add a [KERNEL]
directive to the systemconfigurator configuration file that's found inside the
installation script.

- After installing an image to the node, there is a file created in the
/tftpboot/pxelinux.cfg directory that overrides the
/tftpboot/pxelinux.cfg/deault file. The content of this file is erroneous and
the machine cannot have further pxe boots until this file is erased (or
modified).
I also have a related question. I want to keep on the same server differnet
images for different architectures. This means that the network boot will be
done using different kernels and initrd files. How do I separate these groups
of nodes in the pxelinux.cfg?

Thanks a lot!


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