The following is an example of a partition table from a 1.05-Gbyte disk by using the format utility:
Total disk cylinders available: 2036 + 2 (reserved cylinders) Part Tag Flag Cylinders Size Blocks 0 root wm 0 - 300 148.15MB (301/0/0) 303408 1 swap wu 301 - 524 110.25MB (224/0/0) 225792 2 backup wm 0 - 2035 1002.09MB (2036/0/0) 2052288 3 unassigned wm 0 0 (0/0/0) 0 4 unassigned wm 0 0 (0/0/0) 0 5 unassigned wm 0 0 (0/0/0) 0 6 usr wm 525 - 2035 743.70MB (1511/0/0) 1523088 7 unassigned wm 0 0 (0/0/0) 0 |
The partition table displayed by the format utility contains the following information:
Column Name |
Description |
---|---|
Part |
Partition (or slice number). See Table 31–7 for a description of this column. |
Tag |
Partition tag. See Table 31–7 for a description of this column. |
Flags |
Partition flag. See Table 31–7 for a description of this column. |
Cylinders |
The starting and ending cylinder number for the slice. |
Size |
The slice size in Mbytes. |
Blocks |
The total number of cylinders and the total number of sectors per slice in the far right column. |
The following is an example of a disk label displayed by using the prtvtoc command.
# prtvtoc /dev/rdsk/c0t1d0s0 * /dev/rdsk/c0t1d0s0 partition map * * Dimensions: * 512 bytes/sector * 72 sectors/track * 14 tracks/cylinder * 1008 sectors/cylinder * 2038 cylinders * 2036 accessible cylinders * * Flags: * 1: unmountable * 10: read-only * * First Sector Last * Partition Tag Flags Sector Count Sector Mount Directory 0 2 00 0 303408 303407 / 1 3 01 303408 225792 529199 2 5 00 0 2052288 2052287 6 4 00 529200 1523088 2052287 /usr |
The prtvtoc command provides the following information:
Column Name |
Description |
---|---|
Dimensions |
This section describes the physical dimensions of the disk drive. |
Flags |
This section describes the flags listed in the partition table section. For a description of partition flags, see Table 31–7. |
Partition (or Slice) Table |
This section contains the following information: |
Partition |
Partition (or slice number). For a description of this column, see Table 31–7. |
Tag |
Partition tag. For a description of this column, see Table 31–7. |
Flags |
Partition flag. For a description of this column, see Table 31–7. |
First Sector |
The first sector of the slice. |
Sector Count |
The total number of sectors in the slice. |
Last Sector |
The last sector of the slice. |
Mount Directory |
The last mount point directory for the file system. |