A possible problem could be related to the version of the "diskless"
software that is loaded. One research group here that has their own
AMX-360 had problems with connection to spect & also with having the lock
window display.
It was during an upgrade to the SGI O2 & then later on they had further
problems with connecting to spect.
When they ran with XWINNMR2.5 Patch level 3, the system works fine.
when running with the 'diskless' software of Patch level 4, then they had
problems connecting to spect. The standard CD for 2.5 comes with patch
level 4, so they had Bruker burn a CD for them with PL3.
At 09:48 PM 6/22/00 -0400, rmair@cfa.harvard.edu wrote:
>Greetings once again folks from this happy place.
>
>Update - fully working AMX2 console moved from 400MHz spectroscopy magnet to
>4.7T horizontal magnet = computer disaster.
>
>We ditched the AspectStation - which may have been a mistake as it would at
>least talk to spect, and run rf-pulse-only expts. We now have an SGI O2 as
>host computer. It has been freshly installed with IRIX 6.5 and XWIN-NMR2.6,
>which the folks at Bruker assured me were compatible with the older AMX
>hardware.
>
>After an entire day trying this, we still cannot make a *permanent*
>connection
>to spect. It has been possible twice, for 5 mins each - once thru each of
>the two ethernet ports on the SGI. (See below). So, this needs to be borne
>in mind when I say we can almost never connect to spect.
>
>Or, more to the point, spect cannot make a connection to the 2nd ethernet
>port of the SGI, therefore cannot boot up its diskless unix, therefore we
>can't telnet/ping it.
>
>I have swapped the IP nos on the two ethernet ports ad infinitum. Which ever
>port is labelled 'primary' and is assigned the local lab IP no, works fine.
>I can always telnet elsewhere on the local net. But the spect connection
>fails. I have plugged the local-lab-net cable into the ASP_ST2, and been
>able to telnet succesfully from elsewhere in the lab, but am asked for a
>login, and it wont accept any of the installed login/password on the system.
>This makes me wonder if spect tries to log in the ASP_ST2, and is locked
>out.
>
>The cables between SGI and spect have been swapped out, placed between the
>SGI and other computers, and seen to work. Likewise, the hubs and
>transceivers have been swapped over.
>
>I've been thru section 7 of the installation guide (what to do when telnet
>spect doesn't work) a couple of times, to no success. the serial cable is
>connected from tty0 of the CPU/4 and tty2 of the SGI.... it constantly gives
>me this output:
>
>Autoboot: Waiting to load bfs()/usr/diskless/clients/spect/root/unix (CTRL-C
>to abort)
>loading
>No server for /usr/diskless/clients/spect/root/unix
>
>EXCEPTION: <vector=NORMAL>
>Exception pc: 0x0
>Cause register: 0x30004828<CE=3,IP7,IP4,EXC=II>
>Status register: 0x80000<CM,IPL=8>
>
>BRUKER Aspect X32/4 Monitor
>Version 5.40 MIPS OPT Tue Nov 24 11:26:17 MSZ 1992 root
>Memory size: 16777216 (0x1000000) bytes, 16 MB
>Icache size: 65536 (0x10000) bytes
>Dcache size: 65536 (0x10000) bytes
> >>
>
>At this stage, it is tempting to get the AspectStation out again!!
>Any further advice would be greatly appreciated.
>
>Thanks
>
>Ross
>
>
>--
>Ross Mair
>Staff Scientist Office Phone: (617) 495 7218
>Harvard-Smithsonian Centre for Astrophysics Office Fax: (617) 496 7690
>60 Garden St, MS 59, email: rmair@cfa.harvard.edu
>Cambridge, MA 02138 NMR lab at MIT (617) 252 7011
>USA
-------------------------------------------------------------
John Snyder email: john-snyder@uiowa.edu
NMR Facility ph: 319-335-1332
Chemistry Dept. Dept.fax: 319-335-1270
University of Iowa
Iowa City, IA 52242
--------------------------------------------------------------
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