When i run the line you said this is what i get in return and it looks to be all good, this is the pre configured VM.
indi@ekos-vm:~$ ls -al /dev/ttyUSB*
crw-rw-rw- 1 root dialout 188, 0 Apr 5 19:03 /dev/ttyUSB0
INFO 88.259047 sec : Session log file /tmp/indi_gphoto_ccd_2017-04-05T16:03:50.log
DEBUG 106.009442 sec : Starting exposure (exptime: 60 secs, mirror lock: 0)
DEBUG 106.009467 sec : Mutex locked
DEBUG 106.009963 sec : looking for bulb exposure..
DEBUG 106.009974 sec : bulb exposure found! id:52
DEBUG 106.009980 sec : Using bulb mode. idx: 52
DEBUG 106.036425 sec : Exposure started
INFO 106.036473 sec : Starting 60 sec exposure
DEBUG 106.036540 sec : Time left: 59974
DEBUG 107.036624 sec : Capture in progress. Time left 59
DEBUG 108.037240 sec : Capture in progress. Time left 58
DEBUG 109.037489 sec : Capture in progress. Time left 56
DEBUG 110.038674 sec : Capture in progress. Time left 55
DEBUG 111.037372 sec : Time left: 54974
DEBUG 111.039024 sec : Capture in progress. Time left 54
DEBUG 112.039169 sec : Capture in progress. Time left 53
DEBUG 113.039407 sec : Capture in progress. Time left 52
DEBUG 114.039616 sec : Capture in progress. Time left 51
DEBUG 115.040532 sec : Capture in progress. Time left 50
DEBUG 116.037459 sec : Time left: 49973
DEBUG 116.040599 sec : Capture in progress. Time left 49
DEBUG 117.041586 sec : Capture in progress. Time left 48
DEBUG 118.041973 sec : Capture in progress. Time left 47
DEBUG 119.042517 sec : Capture in progress. Time left 46
DEBUG 120.043198 sec : Capture in progress. Time left 45
DEBUG 121.037822 sec : Time left: 44973
DEBUG 121.046658 sec : Capture in progress. Time left 44
DEBUG 122.046839 sec : Capture in progress. Time left 43
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DEBUG 124.047246 sec : Capture in progress. Time left 41
DEBUG 125.047492 sec : Capture in progress. Time left 40
DEBUG 126.038233 sec : Time left: 39973
DEBUG 126.047866 sec : Capture in progress. Time left 39
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DEBUG 128.048472 sec : Capture in progress. Time left 37
DEBUG 129.049436 sec : Capture in progress. Time left 36
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DEBUG 131.038951 sec : Time left: 34972
DEBUG 131.061815 sec : Capture in progress. Time left 34
DEBUG 132.062541 sec : Capture in progress. Time left 33
DEBUG 133.062716 sec : Capture in progress. Time left 32
DEBUG 134.063649 sec : Capture in progress. Time left 31
DEBUG 135.063855 sec : Capture in progress. Time left 30
DEBUG 136.039087 sec : Time left: 29972
DEBUG 136.064883 sec : Capture in progress. Time left 29
DEBUG 137.064966 sec : Capture in progress. Time left 28
DEBUG 138.065921 sec : Capture in progress. Time left 27
DEBUG 139.066314 sec : Capture in progress. Time left 26
DEBUG 140.066424 sec : Capture in progress. Time left 25
DEBUG 141.039339 sec : Time left: 24972
DEBUG 141.066557 sec : Capture in progress. Time left 24
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DEBUG 144.067269 sec : Capture in progress. Time left 21
DEBUG 145.067367 sec : Capture in progress. Time left 20
DEBUG 146.039435 sec : Time left: 19971
DEBUG 146.068119 sec : Capture in progress. Time left 19
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DEBUG 149.069500 sec : Capture in progress. Time left 16
DEBUG 150.069816 sec : Capture in progress. Time left 15
DEBUG 151.040298 sec : Time left: 14971
DEBUG 151.070617 sec : Capture in progress. Time left 14
DEBUG 152.070728 sec : Capture in progress. Time left 13
DEBUG 153.071221 sec : Capture in progress. Time left 12
DEBUG 154.071865 sec : Capture in progress. Time left 11
DEBUG 155.072302 sec : Capture in progress. Time left 10
DEBUG 156.040536 sec : Time left: 9970
DEBUG 156.072861 sec : Capture in progress. Time left 9
DEBUG 157.073039 sec : Capture in progress. Time left 8
DEBUG 158.073533 sec : Capture in progress. Time left 7
DEBUG 159.073721 sec : Capture in progress. Time left 6
DEBUG 160.073819 sec : Capture in progress. Time left 5
DEBUG 161.040723 sec : Time left: 4970
DEBUG 161.074533 sec : Capture in progress. Time left 4
DEBUG 162.074697 sec : Capture in progress. Time left 3
DEBUG 163.075911 sec : Capture in progress. Time left 2
DEBUG 164.076027 sec : Capture in progress. Time left 1
DEBUG 165.076274 sec : Reading exposure
DEBUG 166.011030 sec : Time left: 0
DEBUG 166.011083 sec : Closing shutter
DEBUG 166.034514 sec : Exposure complete
DEBUG 166.706890 sec : Got unexpected message: 1
DEBUG 167.380639 sec : Got unexpected message: 1
DEBUG 168.051348 sec : Got unexpected message: 1
DEBUG 168.719837 sec : Got unexpected message: 1
DEBUG 169.392856 sec : Got unexpected message: 1
DEBUG 170.061772 sec : Got unexpected message: 1
DEBUG 170.732980 sec : Got unexpected message: 1
DEBUG 171.407513 sec : Got unexpected message: 1
DEBUG 172.076294 sec : Got unexpected message: 1
DEBUG 172.742655 sec : Got unexpected message: 1
DEBUG 173.410153 sec : Got unexpected message: 1
DEBUG 174.077954 sec : Got unexpected message: 1
DEBUG 174.747901 sec : Got unexpected message: 1
DEBUG 175.422338 sec : Got unexpected message: 1
DEBUG 176.091737 sec : Got unexpected message: 1
DEBUG 176.763178 sec : Got unexpected message: 1
DEBUG 177.435521 sec : Got unexpected message: 1
DEBUG 178.109289 sec : Got unexpected message: 1
DEBUG 178.776288 sec : Got unexpected message: 1
DEBUG 179.440423 sec : Got unexpected message: 1
DEBUG 180.111328 sec : Got unexpected message: 1
DEBUG 180.781275 sec : Got unexpected message: 1
DEBUG 181.452019 sec : Got unexpected message: 1
DEBUG 182.119860 sec : Got unexpected message: 1
DEBUG 182.786674 sec : Got unexpected message: 1
DEBUG 183.457614 sec : Got unexpected message: 1
DEBUG 184.130769 sec : Got unexpected message: 1
DEBUG 184.803085 sec : Got unexpected message: 1
DEBUG 185.471962 sec : Got unexpected message: 1
DEBUG 186.140994 sec : Got unexpected message: 1
DEBUG 186.815252 sec : Got unexpected message: 1
DEBUG 187.483591 sec : Got unexpected message: 1
DEBUG 188.153465 sec : Got unexpected message: 1
DEBUG 188.826256 sec : Got unexpected message: 1
DEBUG 189.497154 sec : Got unexpected message: 1
DEBUG 190.168272 sec : Got unexpected message: 1
DEBUG 190.839675 sec : Got unexpected message: 1
DEBUG 191.514931 sec : Got unexpected message: 1
DEBUG 192.191017 sec : Got unexpected message: 1
DEBUG 192.855407 sec : Got unexpected message: 1
DEBUG 193.528816 sec : Got unexpected message: 1
DEBUG 194.196917 sec : Got unexpected message: 1
DEBUG 194.871927 sec : Got unexpected message: 1
DEBUG 195.542655 sec : Got unexpected message: 1
DEBUG 196.217155 sec : Got unexpected message: 1
DEBUG 196.888190 sec : Got unexpected message: 1
DEBUG 197.555986 sec : Got unexpected message: 1
DEBUG 198.229960 sec : Got unexpected message: 1
DEBUG 198.898562 sec : Got unexpected message: 1
DEBUG 199.570129 sec : Got unexpected message: 1
DEBUG 200.241983 sec : Got unexpected message: 1
DEBUG 200.915109 sec : Got unexpected message: 1
DEBUG 201.584646 sec : Got unexpected message: 1
DEBUG 202.252128 sec : Got unexpected message: 1
DEBUG 202.924925 sec : Got unexpected message: 1
DEBUG 203.594816 sec : Got unexpected message: 1
DEBUG 204.264908 sec : Got unexpected message: 1
DEBUG 204.935060 sec : Got unexpected message: 1
DEBUG 205.601333 sec : Got unexpected message: 1
DEBUG 206.273497 sec : Got unexpected message: 1
DEBUG 206.942964 sec : Got unexpected message: 1
DEBUG 207.613443 sec : Got unexpected message: 1
DEBUG 208.285592 sec : Got unexpected message: 1
DEBUG 208.954773 sec : Got unexpected message: 1
DEBUG 209.624549 sec : Got unexpected message: 1
DEBUG 210.293393 sec : Got unexpected message: 1
DEBUG 210.960416 sec : Got unexpected message: 1
DEBUG 211.633241 sec : Got unexpected message: 1
DEBUG 212.300787 sec : Got unexpected message: 1
DEBUG 212.968319 sec : Got unexpected message: 1
DEBUG 213.643397 sec : Got unexpected message: 1
DEBUG 214.312389 sec : Got unexpected message: 1
DEBUG 214.983806 sec : Got unexpected message: 1
DEBUG 215.657248 sec : Got unexpected message: 1
DEBUG 216.327074 sec : Got unexpected message: 1
DEBUG 216.999564 sec : Got unexpected message: 1
DEBUG 217.667864 sec : Got unexpected message: 1
DEBUG 218.338367 sec : Got unexpected message: 1
DEBUG 219.008008 sec : Got unexpected message: 1
DEBUG 219.673973 sec : Got unexpected message: 1
DEBUG 220.349035 sec : Got unexpected message: 1
DEBUG 221.017029 sec : Got unexpected message: 1
DEBUG 221.687586 sec : Got unexpected message: 1
DEBUG 222.356925 sec : Got unexpected message: 1
DEBUG 223.028942 sec : Got unexpected message: 1
DEBUG 223.702957 sec : Got unexpected message: 1
DEBUG 224.373218 sec : Got unexpected message: 1
DEBUG 225.043269 sec : Got unexpected message: 1
DEBUG 225.711265 sec : Got unexpected message: 1
DEBUG 226.378435 sec : Got unexpected message: 1
DEBUG 227.048839 sec : Got unexpected message: 1
DEBUG 227.715883 sec : Got unexpected message: 1
DEBUG 228.386114 sec : Got unexpected message: 1
DEBUG 229.058494 sec : Got unexpected message: 1