Hi.
Let me first say that I'm not sure
'tech-talk' is the right forum to
address with this question which is
rather specific about the mvme5500 RTEMS
BSP and related software but has nothing
to do with EPICS.
åæç wrote:
hi, there is an error about downloading the st.cmd(OS is RTEMS). in the NVRAM
configuration, I fill the "Command Line Parameters" with
"INIT=/home/shl/psApp/iocBoot/iocmvme5500/power_supply.cmd",but something
wrong appears as follows:
Till Straumann, Stanford/SLAC/SSRL 2002
See LICENSE file for licensing info
Trying to synchronize NTP...OK
Loading as 'shl' from '192.168.20.162' using RSH
Loading as 'shl' from '192.168.20.162' using RSH
Trying symfile 'BUILTIN', system script '/tmp/rshcpya00001'
Type 'cexpsh.help()' for help (no quotes)
Trying user script '/home/shl/psApp/iocBoot/iocmvme5500/power_supply.cmd':
Change Dir to '/home/shl/psApp/iocBoot/iocmvme5500/'
Type 'cexpsh.help()' for help (no quotes)
'power_supply.cmd':
opening script file: No such file or directory
Type 'cexpsh.help()' for help (no quotes)
Cexp>
why can't it find my .cmd file? (the file indeed lies in the directory, my
TFTP path is /home/shl/tftpboot, and my NFS shared directory is
/home/shl/psApp/iocBoot/iocmvme5500/, but here I use the absolute path)
It seems you use RSH for downloading the
operating system. There is no RSH support
however for downloading other pieces such
as scripts or loadable objects etc.
You must use TFTP or (more convenient) NFS.
The path to the '.cmd' file must contain
information about
a) the remote file-system type (TFTP vs. NFS)
b) the server
c) the remote path
E.g., you could say
INIT=/TFTP/123.4.56.8/psApp/iocBoot/iocmvme5500/power_supply.cmd
or
INIT=nfsserver:/home/shl:psApp/iocBoot/iocmvme5500/power_supply.cmd
another question, in the NVRAM configuration, one can pass a parameter to
application by filling "Command Line Parameters" with "NAME=value". if I won't
pass a parameter, how can I cancel the parameter?
You just leave 'command line parameters'
empty or let 'INIT=<path>' be the only
<NAME>=<value> pair...
HTH
-- Till
thanks a lot!
best regards
Haoli Shi
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