sysdef(8)sysdef(8)NAMEsysdef - Display system definition
SYNOPSISsysdef-nnamelist
sysdef-i
OPTIONS
Specifies a namelist other than the default (/vmunix). The namelist
argument must be a valid bootable operating system file. The default
system namelist is /vmunix. Causes sysdef to read the configuration
information from the kernel that is currently in memory (/dev/kmem)
instead of reading the file. You must use the -i option for bootstrap
linked kernels, because they only exist in memory. The bootstrap linked
kernel file is not a valid bootable OS file that sysdef can interpret.
It only describes how to link the kernel at boot time. Using sysdef on
a bootstrap linked kernel file without the -i option generates the fol‐
lowing error message: couldn't open the file as a COFF file.
DESCRIPTION
The sysdef command displays the current system definition, presenting
it as values of selected kernel tunable parameters, including tunable
parameters, Utsname tunable parameters, Process Resource Limit Tunables
(both current and maximum values), Streams Tunables, and IPC messages,
semaphores, and shared memory.
The sysdef command may be performed on either a valid static bootable
operating system file, a namelist (the default is /vmunix), or from the
dynamic kernel memory file, /dev/kmem, however the information obtained
may differ in each case because the namelist contains uninitialized
variables.
The sysdef command generates the display by first analyzing the
bootable operating system file (namelist) and extracting the configura‐
tion information.
NOTES
The nlist(2) system call uses an internally specified number of
entries. If the master table exceeds that number, an internal name
list overflow error occurs.
FILES
Is the default operating system file; this file contains the system
namelist. The kernel memory file.
SEE ALSO
Functions: nlist(2)sysdef(8)
