The following format utility output shows an example of a partition table from a 74-Gbyte disk with a VTOC label displayed:
Total disk cylinders available: 38756 + 2 (reserved cylinders) Part Tag Flag Cylinders Size Blocks 0 root wm 3 - 2083 4.00GB (2081/0/0) 8390592 1 swap wu 2084 - 3124 2.00GB (1041/0/0) 4197312 2 backup wm 0 - 38755 74.51GB (38756/0/0) 156264192 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 unassigned wm 0 0 (0/0/0) 0 7 home wm 3125 - 38755 68.50GB (35631/0/0) 143664192 8 boot wu 0 - 0 1.97MB (1/0/0) 4032 9 alternates wu 1 - 2 3.94MB (2/0/0) 8064 partition> |
The partition table displayed by the format utility contains the following information.
Column Name |
Description |
---|---|
Part |
Partition or slice number. See Table 10–6 for a description of this column. |
Tag |
Partition tag. See Table 10–6 for a description of this column. |
Flag |
Partition flag. See Table 10–6 for a description of this column. |
Cylinders |
The starting and ending cylinder number for the slice. Not displayed on EFI-labeled disks. |
Size |
The slice size in Mbytes. |
Blocks |
The total number of cylinders and the total number of sectors per slice. Not displayed on EFI-labeled disks. |
First Sector |
EFI – The starting block number. Not displayed on VTOC-labeled disks. |
Last Sector |
EFI – The ending block number. Not displayed on VTOC-labeled disks. |
The following is an example of an EFI disk label displayed by using the prtvtoc command.
# prtvtoc /dev/rdsk/c4t1d0s0 * /dev/rdsk/c4t1d0s0 partition map * * Dimensions: * 512 bytes/sector * 2576941056 sectors * 2576940989 accessible sectors * * Flags: * 1: unmountable * 10: read-only * * First Sector Last * Partition Tag Flags Sector Count Sector Mount Directory 0 2 00 34 629145600 629145633 1 4 00 629145634 629145600 1258291233 6 4 00 1258291234 1318633404 2576924637 8 11 00 2576924638 16384 2576941021 |
The output of the prtvtoc command provides information in the following three sections:
Dimensions
Flags
Partition Table
prtvtoc Column Name |
Description |
---|---|
Partition |
Partition or slice number. For a description of this column, see Table 10–6. |
Tag |
Partition tag. For a description of this column, see Table 10–6. |
Flags |
Partition flag. For a description of this column, see Table 10–6. |
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. |