cd by itself is actually a valid command. It will take the user to their home directory.
BUT, if that’s indeed the intention here, it would’ve been a good idea to say so.
The path to the script is fully qualified, so it’s doing nothing, unless it ought to be inside the script?
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That may be the case. The main point was that cd by itself is valid. 
I noticed this in one of your earlier posts too. It is (I believe) due to the fact strace forks the command into 2 threads and then one fails, the second one is orphaned as the first one doesn’t complete successfully, terminating the second.
Looking at your df -h result your root files system is maxed out at 100% full. What size is the SDcard? Did you expand the filesystem with emonSDexpand? The numbers only add up to around 3.5GB so it looks like the FS has not been expanded, even if this was a 4GB card I would expect the numbers to be a little higher but an 8GB card min is recommended now.
I tried the script like you show.
No success.
Then I correct the line in the script for the path in firmware/old
than it shows:
cdpi@emonpi(rw):~$ cd
pi@emonpi(rw):~$ /home/pi/RFM2Pi/update-RFM12.sh
avrdude-original: Version 6.1, compiled on Jul 7 2015 at 10:29:47
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "/etc/avrdude.conf"
User configuration file is "/root/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
Using Port : /dev/ttyAMA0
Using Programmer : arduino
Overriding Baud Rate : 38400
avrdude-original: Using autoreset DTR on GPIO Pin 7
AVR Part : ATmega328P
Chip Erase delay : 9000 us
PAGEL : PD7
BS2 : PC2
RESET disposition : dedicated
RETRY pulse : SCK
serial program mode : yes
parallel program mode : yes
Timeout : 200
StabDelay : 100
CmdexeDelay : 25
SyncLoops : 32
ByteDelay : 0
PollIndex : 3
PollValue : 0x53
Memory Detail :
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
eeprom 65 20 4 0 no 1024 4 0 3600 3600 0xff 0xff
flash 65 6 128 0 yes 32768 128 256 4500 4500 0xff 0xff
lfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
hfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
efuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
lock 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
calibration 0 0 0 0 no 1 0 0 0 0 0x00 0x00
signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00
Programmer Type : Arduino
Description : Arduino
Hardware Version: 3
Firmware Version: 4.4
Vtarget : 0.3 V
Varef : 0.3 V
Oscillator : 28.800 kHz
SCK period : 3.3 us
avrdude-original: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.01s
avrdude-original: Device signature = 0x1e950f
avrdude-original: safemode: lfuse reads as 0
avrdude-original: safemode: hfuse reads as 0
avrdude-original: safemode: efuse reads as 0
avrdude-original: NOTE: "flash" memory has been specified, an erase cycle will be performed
To disable this feature, specify the -D option.
avrdude-original: erasing chip
avrdude-original: reading input file "firmware/old/RFM69CW_RF_Demo_ATmega328/RFM12_Demo_ATmega328.cpp.hex"
avrdude-original: error opening firmware/old/RFM69CW_RF_Demo_ATmega328/RFM12_Demo_ATmega328.cpp.hex: No such file or directory
avrdude-original: input file firmware/old/RFM69CW_RF_Demo_ATmega328/RFM12_Demo_ATmega328.cpp.hex auto detected as invalid format
avrdude-original: can't open input file firmware/old/RFM69CW_RF_Demo_ATmega328/RFM12_Demo_ATmega328.cpp.hex: No such file or directory
avrdude-original: read from file 'firmware/old/RFM69CW_RF_Demo_ATmega328/RFM12_Demo_ATmega328.cpp.hex' failed
avrdude-original: safemode: lfuse reads as 0
avrdude-original: safemode: hfuse reads as 0
avrdude-original: safemode: efuse reads as 0
avrdude-original: safemode: Fuses OK (E:00, H:00, L:00)
strace: |autoreset: Broken pipe
strace: |autoreset: Broken pipe
strace: |autoreset: Broken pipe
strace: |autoreset: Broken pipe
strace: |autoreset: Broken pipe
avrdude-original done. Thank you.
strace: |autoreset: Broken pipe
pi@emonpi(rw):~$
These errors
avrdude-original: reading input file "firmware/old/RFM69CW_RF_Demo_ATmega328/RFM12_Demo_ATmega328.cpp.hex"
avrdude-original: error opening firmware/old/RFM69CW_RF_Demo_ATmega328/RFM12_Demo_ATmega328.cpp.hex: No such file or directory
avrdude-original: input file firmware/old/RFM69CW_RF_Demo_ATmega328/RFM12_Demo_ATmega328.cpp.hex auto detected as invalid format
avrdude-original: can't open input file firmware/old/RFM69CW_RF_Demo_ATmega328/RFM12_Demo_ATmega328.cpp.hex: No such file or directory
avrdude-original: read from file 'firmware/old/RFM69CW_RF_Demo_ATmega328/RFM12_Demo_ATmega328.cpp.hex' failed
all relate to an incorrect path.
firmware/old/RFM69CW_RF_Demo_ATmega328/RFM12_Demo_ATmega328.cpp.hex
is a path only relative to the RFM2Pi folder and you are running the script from /home/pi. The absolute path should be
/home/pi/RFM2Pi/firmware/old/RFM69CW_RF_Demo_ATmega328/RFM12_Demo_ATmega328.cpp.hex
it would be better if you use that path rather than changing the working directory.
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i correct the script
now i become this
avrdude-original: reading input file "/home/pi/RFM2Pi/firmware/old/RFM12_Demo_ATmega328.cpp.hex"
avrdude-original: error opening /home/pi/RFM2Pi/firmware/old/RFM12_Demo_ATmega328.cpp.hex: No such file or directory
avrdude-original: input file /home/pi/RFM2Pi/firmware/old/RFM12_Demo_ATmega328.cpp.hex auto detected as invalid format
avrdude-original: can't open input file /home/pi/RFM2Pi/firmware/old/RFM12_Demo_ATmega328.cpp.hex: No such file or directory
avrdude-original: read from file '/home/pi/RFM2Pi/firmware/old/RFM12_Demo_ATmega328.cpp.hex' failed
when i look in the directory firmware old i see
pi@emonpi(rw):old$ dir
Full_RF12demo_atmega328 Pre_compiled_ATtiny84_RF12_Demo_hex RF12_Demo_atmega328 RF12_Demo_atmega328_OLED RFM2Pi_RF12_Demo
there is no file RF12_Demo_atmega328.cpp.hex
i tried on onother SD after git clone RFM2Pi but there is also no such file
after changing the script update-RFM12.sh in
#!/bin/bash
sudo service emonhub stop
avrdude -v -c arduino -p ATMEGA328P -P /dev/ttyAMA0 -b 38400 -U flash:w:/home/pi/RFM2Pi/firmware/old/RF12_Demo_atmega328/RF12_Demo_atmega328.cpp.hex
sudo service emonhub start
and running it, now its working.
Many thanks for the patience and support
My bad! I simply corrected the path you used from relative to absolute, without checking it was all valid. I guess I had assumed you copied it from an earlier post that was correct, but the path was relative to the repo folder we were discussing.
Glad you got there in the end.
Hello Paul,
I need help again. The new image runs good. It receives the input from node 15.
Unfortunately there are 2 other EmonTX with node 13 and 14 but I don’t become the inputs from these. On the other Pi these inputs come in.
Where can I find the description for setting the Emonhub config.
If you look at the emonhub.conf on the Pi that works, and copy the data for nodes 13 & 14 from that to the second Pi, it should work. The nodes setting looks a little like this:
[[10]]
nodename = emontx1
[[[rx]]]
names = power1, power2, power3, power4, vrms, temp1, temp2, temp3, temp4, temp5, temp6, pulse
datacode = h
scales = 1,1,1,1,0.01,0.1,0.1, 0.1,0.1,0.1,0.1,1
units =W,W,W,W,V,C,C,C,C,C,C,p
[[10]] is the Node ID - you must have both 13 & 14 and you must not have another 13 & 14.
All the other lines will be copied from the ‘good’ Pi.
The full data: emonhub/configuration.md at emon-pi · openenergymonitor/emonhub · GitHub
Hello Paul,
I found several Emonhub.config on my old working image but thy al look incomplete.
Now I set my node numbers in the emonhub script names EmonTX 1 and 2 and it works now.
What wonders me now is that the node 15 isn’t show up in the Emonhub config.
The nodess list up til nr 25 but there is no number 15
You only need a configuration for the Node IDs that you use. If you do not have a Node 15 transmitting data, you do not need a Node 15 in emonhub.conf.
|Node 15| |2s|||||
|Node emontx2| |2s|||||
|Node emontx1| |1s|||||
I know but i get the input from node 15
I do not understand your notation:
What is that?
If you have data from a NodeID = 15, what device is Node 15 and what data is it sending? If you have already in your emonhub.conf file another node specification that matches your Node 15, then copy that.
Sorry for the late reacting.
I have 3 EmonTX running. Node numbers 13, 14 and 15.
Now I see them all when I log in to the Pi ip
What’s wonders me is that in the Emonhub conf there is no node 15
The “standard” NodeID’s have changed over the years, so it is possible that your emonTx and your emonhub.conf have got out of step.
Your solution is to simply copy the setting for an emonTx - ideally one that is working - and change the NodeID to “15”:
[[15]]
nodename = emontx3
[[[rx]]]
names = power1, power2, power3, power4, vrms, temp1, temp2, temp3, temp4, temp5, temp6, pulse
datacodes = h,h,h,h,h,h,h,h,h,h,h,L
scales = 1,1,1,1,0.01,0.1,0.1, 0.1,0.1,0.1,0.1,1
units =W,W,W,W,V,C,C,C,C,C,C,p