Как решить проблему Error mounting в Ubuntu?

Error mounting /dev/sdb2 at /media/gleb/Ubuntu 16.04.4 LTS amd64: Command-line `mount -t "iso9660" -o "uhelper=udisks2,nodev,nosuid,uid=1000,gid=1000,iocharset=utf8,mode=0400,dmode=0500" "/dev/sdb2" "/media/gleb/Ubuntu 16.04.4 LTS amd64"' exited with non-zero exit status 32: mount: wrong fs type, bad option, bad superblock on /dev/sdb2,
missing codepage or helper program, or other error

In some cases useful info is found in syslog - try
dmesg | tail or so.