I am constantly getting this in the terminal. What is the reason for this.
This is a fresh install from nanopi-duo_ubuntu-core-xenial_4.11.2_20170908.img.zip
root@NanoPi-Duo:~# [ 183.243424] sd 0:0:0:0: timing out command, waited 180s
[ 363.184929] sd 0:0:0:0: timing out command, waited 180s
[ 543.161443] sd 0:0:0:0: timing out command, waited 180s
[ 723.223300] sd 0:0:0:0: timing out command, waited 180s
[ 903.230300] sd 0:0:0:0: timing out command, waited 180s
[ 903.235937] sd 0:0:0:0: [sda] Asking for cache data failed
[ 903.241742] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 1083.322172] sd 0:0:0:0: timing out command, waited 180s
[ 1263.381305] sd 0:0:0:0: timing out command, waited 180s
[ 1263.389294] sd 0:0:0:0: timing out command, waited 30s
[ 1443.434428] sd 0:0:0:0: timing out command, waited 180s
[ 1623.402308] sd 0:0:0:0: timing out command, waited 180s
[ 1803.413176] sd 0:0:0:0: timing out command, waited 180s
[ 363.184929] sd 0:0:0:0: timing out command, waited 180s
This is a fresh install from nanopi-duo_ubuntu-core-xenial_4.11.2_20170908.img.zip
root@NanoPi-Duo:~# [ 183.243424] sd 0:0:0:0: timing out command, waited 180s
[ 363.184929] sd 0:0:0:0: timing out command, waited 180s
[ 543.161443] sd 0:0:0:0: timing out command, waited 180s
[ 723.223300] sd 0:0:0:0: timing out command, waited 180s
[ 903.230300] sd 0:0:0:0: timing out command, waited 180s
[ 903.235937] sd 0:0:0:0: [sda] Asking for cache data failed
[ 903.241742] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 1083.322172] sd 0:0:0:0: timing out command, waited 180s
[ 1263.381305] sd 0:0:0:0: timing out command, waited 180s
[ 1263.389294] sd 0:0:0:0: timing out command, waited 30s
[ 1443.434428] sd 0:0:0:0: timing out command, waited 180s
[ 1623.402308] sd 0:0:0:0: timing out command, waited 180s
[ 1803.413176] sd 0:0:0:0: timing out command, waited 180s
[ 363.184929] sd 0:0:0:0: timing out command, waited 180s