Error
Sample error:
config/sdcardfs/com.google.android.gms/excluded_userids
ERROR: config/sdcardfs/com.google.android.gms/excluded_userids failed verification -- update discarded.
rsync: read errors mapping "/config/sdcardfs/com.google.android.gms/excluded_userids": No data available (61
Causes
pseudo file systems
See the content of /proc/filesystems. It includes a list of filesystems. Those with nodev in front are pseudo filesystems. They do not require a block device
