The QNX Neutrino RTOS complies with the de facto industry standard for partitioning a disk.
This allows a number of filesystems to share the same physical disk. Each partition is also represented as a block-special file, with the partition type appended to the filename of the disk it's located on. In the above "two-disk" example, if the first disk had a QNX 4 partition and a DOS partition, while the second disk had only a QNX 4 partition, then the default files would be:
The following list shows some typical assigned partition types:
| Type | Filesystem |
|---|---|
| 1 | DOS (12-bit FAT) |
| 4 | DOS (16-bit FAT; partitions <32M) |
| 5 | DOS Extended Partition (enumerated but not presented) |
| 6 | DOS 4.0 (16-bit FAT; partitions ≥32M) |
| 7 | OS/2 HPFS |
| 7 | Windows NT |
| 11 | DOS 32-bit FAT; partitions up to 2047G |
| 12 | Same as Type 11, but uses Logical Block Address Int 13h extensions |
| 14 | Same as Type 6, but uses Logical Block Address Int 13h extensions |
| 15 | Same as Type 5, but uses Logical Block Address Int 13h extensions |
| 77 | QNX 4 POSIX partition (secondary) |
| 78 | QNX 4 POSIX partition (secondary) |
| 79 | QNX 4 POSIX partition |
| 99 | UNIX |
| 131 | Linux (Ext2) |
| 175 | Apple Macintosh HFS or HFS Plus |
| 177 | QNX Power-Safe POSIX partition (secondary) |
| 178 | QNX Power-Safe POSIX partition (secondary) |
| 179 | QNX Power-Safe POSIX partition |