An important part of the disk label is the partition table. The partition table identifies a disk's slices, the slice boundaries (in cylinders), and the total size of the slices. You can display a disk's partition table by using the format utility. The following describes partition table terminology.
Table 10–6 Partition Table Terminology
Partition Term |
Value |
Description |
---|---|---|
Number |
0–7 |
VTOC – Partitions or slices, numbered 0–7. EFI – Partitions or slices, numbered 0–6. |
Tag |
0=UNASSIGNED 1=BOOT 2=ROOT 3=SWAP 4=USR 5=BACKUP 7=VAR 8=HOME 11=RESERVED |
A numeric value that usually describes the file system mounted on this partition. |
Flags |
wm |
The partition is writable and mountable. |
|
wu rm |
The partition is writable and unmountable. This state is the default for partitions that are dedicated for swap areas. (However, the mount command does not check the “not mountable” flag.) |
|
rm |
The partition is read only and mountable. |
Partition flags and tags are assigned by convention and require no maintenance.
For more information on displaying the partition table, see the following references: