Is a block_device mapping a physical disk or a partition of the disk?












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In the ULK book, the author says each block device has its own driver. The question is, the block device here represents a physical disk or just a partition of the disk?









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    In the ULK book, the author says each block device has its own driver. The question is, the block device here represents a physical disk or just a partition of the disk?









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      In the ULK book, the author says each block device has its own driver. The question is, the block device here represents a physical disk or just a partition of the disk?









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      In the ULK book, the author says each block device has its own driver. The question is, the block device here represents a physical disk or just a partition of the disk?







      linux-kernel hard-disk block-device





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