SPARC: How to Create Disk Slices and Label a Disk
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Become superuser.
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Start the format(1M) utility.
# format
A list of available disks is displayed.
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Enter the number of the disk that you want to repartition from the list displayed on your screen.
Specify disk (enter its number): disk-number
disk-number
Is the number of the disk that you want to repartition.
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Go into the partition menu (which lets you set up the slices).
format> partition
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Display the current partition (slice) table.
partition> print
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Start the modification process.
partition> modify
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Set the disk to all free hog.
Choose base (enter number) [0]? 1
See "Using the Free Hog Slice" for more information about the free hog slice.
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Create a new partition table by answering y when prompted to continue.
Do you wish to continue creating a new partition table based on above table[yes]? y
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Identify the free hog partition (slice) and the sizes of the slices when prompted.
When adding a system disk, you must set up slices for:
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root (slice 0) and swap (slice 1) and/or
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/usr (slice 6)
After you identify the slices, the new partition table is displayed.
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Make the displayed partition table the current partition table by answering y when asked.
Okay to make this the current partition table[yes]? y
If you don't want the current partition table and you want to change it, answer no and go to Step 6.
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Name the partition table.
Enter table name (remember quotes): "partition-name"
partition-name
Is the name for the new partition table.
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Label the disk with the new partition table when you have finished allocating slices on the new disk.
Ready to label disk, continue? yes
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Quit the partition menu.
partition> q
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Verify the disk label using the verify command.
format> verify
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Quit the format menu.
format> q
SPARC: Example--Creating Disk Slices and Labeling a System Disk
The following example uses the format utility to divide a 1-Gbyte disk into three slices: one for the root (/) file system, one for the swap area, and one for the /usr file system.
# format
Searching for disks...done
AVAILABLE DISK SELECTIONS:
0. c0t1d0 <SUN1.05 cyl 2036 alt 2 hd 14 sec 72>
/iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/sd@1,0
1. c0t3d0 <SUN1.05 cyl 2036 alt 2 hd 14 sec 72>
/iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/sd@3,0
Specify disk (enter its number): 0
selecting c0t1d0
[disk formatted]
format> partition
partition> print
partition> modify
Select partitioning base:
0. Current partition table (original)
1. All Free Hog
Choose base (enter number) [0]? 1
Part Tag Flag Cylinders Size Blocks
0 root wm 0 0 (0/0/0) 0
1 swap wu 0 0 (0/0/0) 0
2 backup wu 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 0 0 (0/0/0) 0
7 unassigned wm 0 0 (0/0/0) 0
Do you wish to continue creating a new partition
table based on above table[yes]? yes
Free Hog partition[6]? 6
Enter size of partition `0' [0b, 0c, 0.00mb]: 200mb
Enter size of partition `1' [0b, 0c, 0.00mb]: 200mb
Enter size of partition `3' [0b, 0c, 0.00mb]:
Enter size of partition `4' [0b, 0c, 0.00mb]:
Enter size of partition `6' [0b, 0c, 0.00mb]:
Enter size of partition `7' [0b, 0c, 0.00mb]:
Part Tag Flag Cylinders Size Blocks
0 root wm 0 - 406 200.32MB (407/0/0) 410256
1 swap wu 407 - 813 200.32MB (407/0/0) 410256
2 backup wu 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 814 - 2035 601.45MB (1222/0/0) 1231776
7 unassigned wm 0 0 (0/0/0) 0
Okay to make this the current partition table[yes]? yes
Enter table name (remember quotes): "disk0"
Ready to label disk, continue? yes
partition> quit
format> verify
format> quit
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SPARC: Example--Creating Disk Slices and Labeling a Secondary Disk
The following example uses the format utility to divide a 1-Gbyte disk into one slice for the /export/home file system.
# format
Searching for disks...done
AVAILABLE DISK SELECTIONS:
0. c0t1d0 <SUN1.05 cyl 2036 alt 2 hd 14 sec 72>
/iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/sd@1,0
1. c0t3d0 <SUN1.05 cyl 2036 alt 2 hd 14 sec 72>
/iommu@f,e0000000/sbus@f,e0001000/espdma@f,400000/esp@f,800000/sd@3,0
Specify disk (enter its number): 0
selecting c0t1d0
[disk formatted]
format> partition
partition> print
partition> modify
Select partitioning base:
0. Current partition table (original)
1. All Free Hog
Choose base (enter number) [0]? 1
Part Tag Flag Cylinders Size Blocks
0 root wm 0 0 (0/0/0) 0
1 swap wu 0 0 (0/0/0) 0
2 backup wu 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 0 0 (0/0/0) 0
7 unassigned wm 0 0 (0/0/0) 0
Do you wish to continue creating a new partition
table based on above table[yes]? y
Free Hog partition[6]? 7
Enter size of partition '0' [0b, 0c, 0.00mb, 0.00gb]:
Enter size of partition '1' [0b, 0c, 0.00mb, 0.00gb]:
Enter size of partition '3' [0b, 0c, 0.00mb, 0.00gb]:
Enter size of partition '4' [0b, 0c, 0.00mb, 0.00gb]:
Enter size of partition '5' [0b, 0c, 0.00mb, 0.00gb]:
Enter size of partition '6' [0b, 0c, 0.00mb, 0.00gb]:
Part Tag Flag Cylinders Size Blocks
0 root wm 0 0 (0/0/0) 0
1 swap wu 0 0 (0/0/0) 0
2 backup wu 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 0 0 (0/0/0) 0
7 unassigned wm 0 - 2035 1002.09MB (2036/0/0) 2052288
Okay to make this the current partition table[yes]? yes
Enter table name (remember quotes): "home"
Ready to label disk, continue? y
partition> q
format> verify
format> q
#
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Where to Go From Here
After you create disk slices and label the disk, you can create file systems on the disk. Go to "SPARC: How to Create File Systems".
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