What is the maximum amount of logical partitions an extended partition can hold?
Well, in theory you could go on and create logical partitions infinitely; however, all operating systems impose some limit. For Linux it is the device number allocation that limits support. For IDE devices 64 minor numbers are reserved for each disk. For instance /dev/hda is major 3 minor 0, /dev/hda1 is major 3, minor 1, etc up till /dev/hda63. For SCSI devices only 16 minor numbers are allocated for each disk, so there Linux only supports 15 partitions. Devices that use the SCSI driver have names like /dev/sda.
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