1prtvtoc(1M) System Administration Commands prtvtoc(1M)
2
6 prtvtoc - report information about a disk geometry and partitioning
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9 prtvtoc [-fhs] [-t vfstab] [-m mnttab] device
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13 The prtvtoc command allows the contents of the label to be viewed. The
14 command can be used only by the super-user.
15 The device name can be the file name of a raw device in the form of
18 /dev/rdsk/c?t?d?s2 or can be the file name of a block device in the
19 form of /dev/dsk/c?t?d?s2.
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22 The following options are supported:
23 -f Report on the disk free space, including the starting
25 block address of the free space, number of blocks, and
26 unused partitions.
27 -h Omit the headers from the normal output.
30 -m mnttab Use mnttab as the list of mounted filesystems, in place of
33 /etc/mnttab.
34 -s Omit all headers but the column header from the normal
37 output.
38 -t vfstab Use vfstab as the list of filesystem defaults, in place of
41 /etc/vfstab.
42
45 Example 1 Using the prtvtoc Command
46 The following example uses the prtvtoc command on a 424-megabyte hard
49 disk:
50 example# prtvtoc /dev/rdsk/c0t3d0s2
53 * /dev/rdsk/c0t3d0s2 partition map
54 *
55 * Dimension:
56 * 512 bytes/sector
57 * 80 sectors/track
58 * 9 tracks/cylinder
59 * 720 sectors/cylinder
60 * 2500 cylinders
61 * 1151 accessible cylinders
62 *
63 * Flags:
64 * 1: unmountable
65 * 10: read-only
66 * * First Sector Last
67 * Partition Tag Flags Sector Count Sector Mount Directory
68 0 2 00 0 76320 76319 /
69 1 3 01 76320 132480 208799
70 2 5 00 0 828720 828719
71 5 6 00 208800 131760 340559 /opt
72 6 4 00 340560 447120 787679 /usr
73 7 8 00 787680 41040 828719 /export/home
74 example#
75 The data in the Tag column above indicates the type of partition, as
80 follows:
81 Name Number
87 UNASSIGNED 0x00
88 BOOT 0x01
89 ROOT 0x02
90 SWAP 0x03
91 USR 0x04
92 BACKUP 0x05
93 STAND 0x06
94 VAR 0x07
95 HOME 0x08
96 ALTSCTR 0x09
97 CACHE 0x0a
98 RESERVED 0x0b
99 The data in the Flags column above indicates how the partition is to be
103 mounted, as follows:
104 Name Number
110 MOUNTABLE, READ AND WRITE 0x00
111 NOT MOUNTABLE 0x01
112 MOUNTABLE, READ ONLY 0x10
113 Example 2 Using the prtvtoc Command with the -f Option
116 The following example uses the prtvtoc command with the -f option on a
119 424-megabyte hard disk:
120 example# prtvtoc -f /dev/rdsk/c0t3d0s2
123 FREE_START=0 FREE_SIZE=0 FREE_COUNT=0 FREE_PART=34
124 Example 3 Using the prtvtoc Command on a Disk Over One Terabyte
128 The following example uses uses the prtvtoc command on a disk over one
131 terabyte:.
132 example# prtvtoc /dev/rdsk/c1t1d0s2
135 * /dev/rdsk/c1t1d0s2 partition map
136 *
137 * Dimensions:
138 * 512 bytes/sector
139 * 3187630080 sectors
140 * 3187630013 accessible sectors
141 *
142 * Flags:
143 * 1: unmountable
144 * 10: read-only
145 *
146 * First Sector Last
147 * Partition Tag Flags Sector Count Sector Mount Directory
148 0 2 00 34 262144 262177
149 1 3 01 262178 262144 524321
150 6 4 00 524322 3187089340 3187613661
151 8 11 00 3187613662 16384 318763004
152
156 See attributes(5) for descriptions of the following attributes:
157 ┌─────────────────────────────┬─────────────────────────────┐
162 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
163 ├─────────────────────────────┼─────────────────────────────┤
164 │Availability │SUNWcsu │
165 └─────────────────────────────┴─────────────────────────────┘
166
168 devinfo(1M), fmthard(1M), format(1M), mount(1M), attributes(5)
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171 The mount command does not check the "not mountable" bit.
172SunOS 5.11 25 Jul 2002 prtvtoc(1M)