Error mounting /dev/sdb2 at /media/aruns/Debian 9.2.1 amd64 1: Command-line `mount -t "iso9660" -o "uhelper=udisks2,nodev,nosuid,uid=1000,gid=1000,iocharset=utf8,mode=0400,dmode=0500" "/dev/sdb2" "/media/aruns/Debian 9.2.1 amd64 1"' exited with non-zero exit status 32: mount: block device /dev/sdb2 is write-protected, mounting read-only
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