Ubuntu 20.04 multipath syslog errors

Edit  /etc/multipath.conf 

and blacklist sda. Files contents which also blacklists common other devices like CDRom drives etc. that should never be checked for multipath configurations:

Code:

defaults {
    user_friendly_names yes
}
blacklist {
    devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st|sda)[0-9]*"
}