RAW storage can't be accessed / initalized

As was mentioned in MDEV-6029, raw storage in MariaDB isn't work correctly. This configuration (innodb_data_file_path=/dev/sdc2:20Graw) works perfectly with MySQL 5.5 (raw device was initialized, storage was filled with some databases). But, after update to MariaDB 10.0, server wasn't start. When i've apply a patch and rebuild from source, server starts successfully.
But when i've try to reinitialize storage, error "The first specified data file /dev/sdc2 did not exist... InnoDB: Cannot create ./ib_logfile101" was occured. Storage was zeroed and, after restart with "20Graw" server start fails with error: " [ERROR] InnoDB: space header page consists of zero bytes in data file /dev/sdc2".