Do not, I repeat Do not try to reformat the HDD’s if Fun_Plug is running. It will fail. Root cause is probably the fact that fdisk is showing an segmentation fault (ie. fdisk /dev/sdb)
3x formatting failed when fun_plug was enabled, after disabling the format directly started .. and succeeded.
Good to know, but who is Self?
Or are you talking to yourself. :-)
Makes sense; FunPlug runs from the HDD’s (for most users) and there are programs running which interfere with the formatting process.