16.04 - How to check whether DVD-writer's firmware being changed - Ask Ubuntu


suddenly found used dvd-writer couldn't ejected means. e.g. 

$ eject eject: unable eject, last error: inappropriate ioctl device  $ eject -t eject: cd-rom tray close command failed: input/output error

how can check whether firmware have been accidentally flashed during package linux-firmware being updated?


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