Adding selected kernel options

To add selected options follow the steps:

# cp vmunix  /vmunix.save
# /usr/sbin/doconfig

Enter configuration file name at prompt (ex. MYSYS). If the configuration file does not exist, a new one with that name is created. If it exists, overwrite permission is queried. Select kernel option from the displayed menu similar to the one below:

Kernel Option Menu
Selection	Kernel Option
1	System V Devices
2	NTP V3 Kernel Phase Lock Loop (NTP_TIME)
3	Kernel Breakpoint Debugger (KDEBUG)
4	Packetfilter driver (PACKETFILTER)
5	Point-to-Point Protocol (PPP)
6	STREAMS pckt module (PCKT)
7	X/Open Transport Interface (XTISO, TIMOD, TIRDWR)
8	File-on-File File System (FFM)
9	ISO 9660 Compact Disc File System (CDFS)
10	Audit Subsystem
11	ACL Subsystem
12	LAN Emulation over ATM (LANE)
13	Classical IP over ATM (ATMIP)
14	ATM UNI 3.0/3.1 Signalling for SVCs
15	Asynchronous Transfer Mode (ATM)
16	Advanced File System (ADVFS)
17	All of the above
18	None of the above
19	Help

Edit the configuration file if needed. doconfig calls the editor defined by EDITOR. When editing is terminated, doconfig builds the new kernel. To make it active, do:

# mv /usr/sys/MYSYS/vmunix   /vmunix
# /usr/sbin/shutdown -r now

If the new kernel does not boot, follow the steps described in Section 5.2.