Create a directory for the volume group. For example:
# mkdir /dev/vgname
By convention, vgname is vgnn, where nn is a unique number across all volume groups. However, you can choose any unique name up to 255 characters. 2.
Create a device file named group in the volume group directory with the mknod command. For example:
# mknod /dev/vgname/group c major 0xminor
The c following the device file name specifies that group is a character device file.
major is the major number for the group device file. For a Version 1.0 volume group, it is 64. For a Version 2.x volume group, it is 128.
minor is the minor number for the group file in hexadecimal. For a Version 1.0 volume group, minor has the form 0xnn0000, where nn is a unique number across all Version 1.0 volume groups. For a Version 2.x volume group, minor has the form 0xnnn000, where nnn is a unique number across all Version 2.x volume groups.
For more information on mknod, see mknod(1M); for more information on major numbers and minor numbers, see â Device Number Formatâ .
