Keywords: sag

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## Device files and partitions

Each partition and extended partition has its own device file. The naming convention for these files is that a partition's number is appended after the name of the whole disk, with the convention that 1-4 are primary partitions (regardless of how many primary partitions there are) and 5-8 are logical partitions (regardless of within which primary partition they reside). For example, `/dev/hda1` is the first primary partition on the first IDE hard disk, and `/dev/sdb7` is the third extended partition on the second SCSI hard disk. The device list in [Anv] gives more information.