Questions[gammu](ubuntu)

I am trying to remove an apparently-corrupt package gammu-smsd.service.

When I run sudo apt remove gammu-smsd.service, I get the following result:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package gammu-smsd.service

I got to the point of wanting to remove this package because, while I was doing some cleanup, I was confronted with issues while attempting to install and delete packages that I had selected. Here's the result of upgrading (updating is flawless).

Here's the the result of running sudo apt upgrade.

Reading package lists...
Building dependency tree...
Reading state information...
Calculating upgrade...
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] Abort.

I was alerted by the 6th line (in above output) that there was a problem. Once I learned that the culprit was gammu-smsd.service, I ran systemctl status gammu-smsd.service obtaining this result:

● gammu-smsd.service - SMS daemon for Gammu
     Loaded: bad-setting (Reason: Unit gammu-smsd.service has a bad unit file setting.)
     Active: inactive (dead)
       Docs: man:gammu-smsd(1)

Jul 18 20:15:18 LolouilaLawelima systemd[1]: /lib/systemd/system/gammu-smsd.service:9: Neither a valid executable name nor an absolute path: ${CMAKE_INSTALL_FULL_BINDIR}/gammu-smsd

Jul 18 20:15:18 LolouilaLawelima systemd[1]: gammu-smsd.service: Unit configuration has fatal error, unit will not be started.

Jul 18 20:56:24 LolouilaLawelima systemd[1]: /lib/systemd/system/gammu-smsd.service:9: Neither a valid executable name nor an absolute path: ${CMAKE_INSTALL_FULL_BINDIR}/gammu-smsd

Jul 18 20:56:24 LolouilaLawelima systemd[1]: gammu-smsd.service: Unit configuration has fatal error, unit will not be started.

Jul 18 20:56:25 LolouilaLawelima systemd[1]: /lib/systemd/system/gammu-smsd.service:9: Neither a valid executable name nor an absolute path: ${CMAKE_INSTALL_FULL_BINDIR}/gammu-smsd

Jul 18 20:56:25 LolouilaLawelima systemd[1]: gammu-smsd.service: Unit configuration has fatal error, unit will not be started.

Jul 18 21:18:31 LolouilaLawelima systemd[1]: /lib/systemd/system/gammu-smsd.service:9: Neither a valid executable name nor an absolute path: ${CMAKE_INSTALL_FULL_BINDIR}/gammu-smsd

Jul 18 21:18:31 LolouilaLawelima systemd[1]: gammu-smsd.service: Unit configuration has fatal error, unit will not be started.

Jul 18 21:18:33 LolouilaLawelima systemd[1]: /lib/systemd/system/gammu-smsd.service:9: Neither a valid executable name nor an absolute path: ${CMAKE_INSTALL_FULL_BINDIR}/gammu-smsd

Jul 18 21:18:33 LolouilaLawelima systemd[1]: gammu-smsd.service: Unit configuration has fatal error, unit will not be started.

How can I remove and/or purge a package that apt cannot find?

Following the suggestion from comments and running sudo apt remove gammu-smsd, I got:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libgammu-i18n libgammu8 libgsmsd8
Use 'sudo apt autoremove' to remove them.
The following packages will be REMOVED:
  gammu-smsd
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 179 kB disk space will be freed.
Do you want to continue? [Y/n] 
(Reading database ... 737130 files and directories currently installed.)
Removing gammu-smsd (1.41.0-1) ...
Failed to stop gammu-smsd.service: Unit gammu-smsd.service not loaded.
invoke-rc.d: initscript gammu-smsd, action "stop" failed.
dpkg: error processing package gammu-smsd (--remove):
 installed gammu-smsd package pre-removal script subprocess returned error exit status 1
dpkg: too many errors, stopping
Failed to start gammu-smsd.service: Unit gammu-smsd.service has a bad unit file setting.
See system logs and 'systemctl status gammu-smsd.service' fo
r details.
invoke-rc.d: initscript gammu-smsd, action "start" failed.
● gammu-smsd.service - SMS daemon for Gammu
     Loaded: bad-setting (Reason: Unit gammu-smsd.service ha
s a bad unit file setting.)
     Active: inactive (dead)
       Docs: man:gammu-smsd(1)

Jul 18 23:16:57 LolouilaLawelima systemd[1]: /lib/systemd/sy
stem/gammu-smsd.service:9: Neither a valid executable name n
or an absolute path: ${CMAKE_INSTALL_FULL_BINDIR}/gammu-smsd
Jul 18 23:16:57 LolouilaLawelima systemd[1]: gammu-smsd.serv
ice: Unit configuration has fatal error, unit will not be st
arted.
Jul 18 23:16:59 LolouilaLawelima systemd[1]: /lib/systemd/sy
stem/gammu-smsd.service:9: Neither a valid executable name n
or an absolute path: ${CMAKE_INSTALL_FULL_BINDIR}/gammu-smsd
Jul 18 23:16:59 LolouilaLawelima systemd[1]: gammu-smsd.serv
ice: Unit configuration has fatal error, unit will not be st
arted.
Jul 18 23:22:08 LolouilaLawelima systemd[1]: /lib/systemd/sy
stem/gammu-smsd.service:9: Neither a valid executable name n
or an absolute path: ${CMAKE_INSTALL_FULL_BINDIR}/gammu-smsd
Jul 18 23:22:08 LolouilaLawelima systemd[1]: gammu-smsd.serv
ice: Unit configuration has fatal error, unit will not be st
arted.
Jul 18 23:22:11 LolouilaLawelima systemd[1]: /lib/systemd/sy
stem/gammu-smsd.service:9: Neither a valid executable name n
or an absolute path: ${CMAKE_INSTALL_FULL_BINDIR}/gammu-smsd
Jul 18 23:22:11 LolouilaLawelima systemd[1]: gammu-smsd.serv
ice: Unit configuration has fatal error, unit will not be st
arted.
Jul 18 23:22:12 LolouilaLawelima systemd[1]: /lib/systemd/sy
stem/gammu-smsd.service:9: Neither a valid executable name n
or an absolute path: ${CMAKE_INSTALL_FULL_BINDIR}/gammu-smsd
Jul 18 23:22:12 LolouilaLawelima systemd[1]: gammu-smsd.serv
ice: Unit configuration has fatal error, unit will not be st
arted.
dpkg: error while cleaning up:
 installed gammu-smsd package post-installation script subpr
ocess returned error exit status 1
Errors were encountered while processing:
 gammu-smsd
Processing was halted because there were too many errors.
E: Sub-process /usr/bin/dpkg returned an error code (1)

I have a D-LINK DWM-157 USB 3G stick with working sms-only operator plan SIM card and without PIN code.

For some reason, neither gammu, nor gsmsendsms, nor gsmctl can connect to the device. They all report timeouts.

BUT wvdial finds the device allright and is able to both talk to it and make /etc/wvdial.conf entry:

[Dialer Defaults]
Init1 = ATZ
Init2 = ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0
Init3 = AT+CFUN=1,0
Modem Type = Analog Modem
; Phone = <Target Phone Number>
ISDN = 0
; Password = <Your Password>
New PPPD = yes
; Username = <Your Login Name>
Modem = /dev/ttyUSB0
Baud = 9600

I also can manually execute all AT commands and send myself an sms by echo > /dev/ttyUSB0

#cat < /dev/ttyUSB0 &
# echo "ATZ" > /dev/ttyUSB0
OK
# echo "ATQ0 V1 E1 S0=0 &C1 &D2 +FCLASS=0" > /dev/ttyUSB0
OK
# echo "AT+CMGS=\"+myphonewithcountrycode\",145" > /dev/ttyUSB0
>
# echo "foobar^Z" > /dev/ttyUSB0
foobar
+CMGS: 2
OK
#

If I do a cat < /dev/ttyUSB0 & and then try gammu or gsmctl I can see that they both send AT commands and that modem replies with OK, but gammu/gsm act as if they didn't receive OK.

There is something very strangely wrong. What could be the problem?

I have an enfora modem connected to a serial port on my server machine (which I access via ssh since it is remote) running ubuntu. Basically, it is a gsm modem that can communicate through a gsm network to talk to gps devices which also have gsm modem. I am using gammu-smsd to scan the GSM modem for received messages, then store them in postgresql database, and send the messages to the cell phones of users.

It has been working but suddenly stopped working. My /etc/gammu-smsdrc is configured. None of that configuration changed. I still have the port set to /dev/ttyS0. I checked the postgresql database and it is running. And that is the database that gammu-smsd is configured to use.

Now gammu-smsd logs to my syslog file and this is the latest output from it:

Jun 24 14:20:01 porkypig CRON[32512]: (www-data) CMD ([ -x /usr/lib/cgi-bin/awstats.pl -a -f /etc/awstats/awstats.conf -a -r /var/log/apache2/access.log ] && /usr/lib/cgi-bin/awstats.pl -config=awstats -update >/dev/null)
Jun 24 14:20:18 porkypig gammu-smsd[32416]: Starting phone communication...
Jun 24 14:20:28 porkypig gammu-smsd[32416]: Error at init connection No response in specified timeout. Probably phone not connected. (14)
Jun 24 14:20:28 porkypig gammu-smsd[32416]: Terminating communication No response in specified timeout. Probably phone not connected., (14, 250 times)
Jun 24 14:20:28 porkypig gammu-smsd[32416]: Going to 30 seconds sleep because of too much connection errors
Jun 24 14:20:58 porkypig gammu-smsd[32416]: Starting phone communication...
Jun 24 14:21:08 porkypig gammu-smsd[32416]: Error at init connection No response in specified timeout. Probably phone not connected. (14)
Jun 24 14:21:08 porkypig gammu-smsd[32416]: Terminating communication No response in specified timeout. Probably phone not connected., (14, 250 times)
Jun 24 14:21:08 porkypig gammu-smsd[32416]: Going to 30 seconds sleep because of too much connection errors
Jun 24 14:21:38 porkypig gammu-smsd[32416]: Starting phone communication...
Jun 24 14:21:38 porkypig gammu-smsd[32416]: Can't open device (Error opening device. Unknown, busy or no permissions.:2)
Jun 24 14:21:38 porkypig gammu-smsd[32416]: Using PGSQL service
Jun 24 14:21:38 porkypig gammu-smsd[32416]: Disconnecting from PostgreSQL

Then doesn't look to comforting.

When I run

sudo minicom

It says initializing modem and displays this:

Welcome to minicom 2.4

OPTIONS: I18n 
Compiled on Jan 25 2010, 07:02:36.
Port /dev/ttyS0

Press CTRL-A Z for help on special keys                                                                                                                                  

But then all it gives me is a blinking cursor and typing doesn't do anything.

Any idea what might be wrong here?