People always say “the system boots from drive C by default” - China DOS Union Forum

Under normal circumstances, drive C is not the same as drives D, E, and F. Although drive C is indeed set as the active partition, even so, drive C is still different from the other drives, because partitions have the concepts of a primary DOS partition and an extended DOS partition. The primary DOS partition is what we usually call drive C; and the extended DOS partition is divided again into logical DOS drives, namely drives D, E, and F.

To sum up, aside from the active partition parameter, there are still differences between drive C and the other drives, and that difference lies in the primary DOS partition and the extended DOS partition.

Floor1　as9635	Posted 2003-07-21 00:00
中级用户　Posts 24　Credits 218
People always say “the system boots from drive C by default.” Why (or how) does it default to booting from drive C? Is it because drive C is marked active, so the system defaults to booting from drive C? If what I mark active is not drive C but drive D, does that mean “the system boots from drive D by default”? Is the relevant command line written in the partition table? Thanks for the advice! Thanks!!

Floor2　红色狂想	Posted 2003-07-21 00:00
金牌会员　Posts 1,501　Credits 4,289　From 河南省
Under normal circumstances, drive C is not the same as drives D, E, and F. Although drive C is indeed set as the active partition, even so, drive C is still different from the other drives, because partitions have the concepts of a primary DOS partition and an extended DOS partition. The primary DOS partition is what we usually call drive C; and the extended DOS partition is divided again into logical DOS drives, namely drives D, E, and F. To sum up, aside from the active partition parameter, there are still differences between drive C and the other drives, and that difference lies in the primary DOS partition and the extended DOS partition.