Partial reads won't corrupt the data. Dd will issue other read() until 1MB of data is buffered. The iflag=fullblock is only useful when counting or skipping byt

Partial reads won't corrupt the data. Dd will issue other read() until 1MB of data is buffered. The iflag=fullblock is only useful when counting or skipping bytes or doing direct I/O. See line 1647: https://github.com/coreutils/coreutils/blob/master/src/dd.c#L1647 https://github.com/coreutils/coreutils/blob/master/src/dd.c#...