a few questions about 4.0-FT

[Narayan Desai]

Hi all. We're running the 4.0-FT release on our 5832. We've started
having really serious hardware problems with the SSP, with potential
filesystem corruption of the rootfs. This is leading me to contemplate
a hardware swapout for the SSP. (i'm frankly a little bit worried
about running the ancient version of rhel as well).

How crazy is it to try transplanting the ssp onto newer hardware? It
looks like the only funny hardware on the ssp is the quad ethernet. Is
all that is needed?

One step further, would it be reasonable to attempt to rehome to a
newer version of centos?

Finally, if I were going to contemplate a reinstall from media, what
is the best version of 4.0-FT to run? I have r136; is that the newest
bits?
thanks.
-nld

[Aaron Brooks]

Narayan,

This is coming from some very fuzzy memories but I think you'll likely need to manage the udev rules to match up network device paths after moving the quad ethernet (although the current udev rules might just work). Let me know if you have any questions about this and I can dig further. You should, in general be able to use any hardware that the image will run on providing you can make the network interfaces match the udev config.

As far as updating to a more recent centos, I'd expect trouble. Maybe someone else knows more definitively.

Someone else would have to weigh in on the most recent available install bits.

-Aaron

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[Narayan Desai]

Aaron, thanks for the (fuzzy) memories ;)
-nld

[Win Treese]

In principle, as long as you've three Ethernet interfaces, it can be made
to work. The installation process doesn't assume very much about the
hardware except for getting the network setup right.

With the RHEL SSP, the network configuration is especially finicky.
On the SC072s, changing the LAN IP address was often enough to
scramble it, but you can untangle it by hand.

In the waning days of SiCortex, I built an SC072 setup with CentOS,
so it can be done. There are subtle differences in the configuration
management such that the automated installation doesn't get it
exactly right. But it's certainly not impossible, and I don't think it
took me all that long to do it.

As for the version of 4.0-FT, I think there was an original one and
a patch release. On a quick look at the ISOs I have, I couldn't match
up the r136 reference; do you have any other version information?
Or where did you get that? I don't have a running 4.0-FT system
to check.

- Win

[Narayan Desai]

Hi Win.

I've got a cd that is labelled:
SiCortex Software Release
Version 4.0-FT build r136
Field Trial Patch Set 1
13 May 2009
Part number 2950-11 rev 02

I suspect this is the refresh dvd that we're running (at least
nominally; i know that we updated kernel bits from Peter at a minimum)

Is there any other identifier that I can get off of the disk that is
more useful?

I'm not too worried about the ethernet interfaces; I can always pull
the pci-e card out of the current SSP.
-nld

[Win Treese]

Narayan,

I think that is the latest one that went out. If you updated the
kernel from Peter after that, I'm not sure where those bits would
be.

- Win

[Narayan Desai]

I have the current SSP, so the bits are there. I'm going to go mail
spelunking to try to figure out if there was anything else that needed
changing. I just want to know what I'm in for before committing to
doing a complete system rebuild.

Oh, I also noticed on the anl mirror of sicortex sources that there is
an iso image that is new as of last year (~3/11). Do you know what
this is?

at any rate, thanks for the help.
-nld

[Jason Smith]

March '11 is when Larry came out to our site to work on our SC5832 and we were investigating upgrading to the 4.0 FT version.  He may have made some modifications to the ANL mirror at the time.  We decided not to upgrade to 4.0 because of we ran into issues installing it on an SC072.

Thanks,
Jason

Jason R. Smith
Lockheed Martin
Systems Integrator
AFRL/RCM, Bldg 676
2435 5th Street
WPAFB  OH  45433
Jason...@wpafb.af.mil
Jason....@lmco.com
937-255-0941 (desk)
937-238-6471 (cell)

[Narayan Desai]

interesting. it seems to have an extra 200 MB of data in the image,
but i haven't had time to go digging yet.
-nld