Mounting /proc with SunOS 5
To make sure that the /proc file system is mounted each time your system boots, add the appropriate line from the following table to the appropriate file.
Operating System
Name of File
Line to add
SunOS 5
/etc/vfstab
/proc -  /proc proc  -  no  -
Then, to mount the /proc file system, enter the following command:
/sbin/mount /proc