编译优化自己的FreeBSD

使用版本为FreeBSD5.3,运行 sysinstall 命令,然后选择configure -> Distrbutions -> src ->

sys 然后安装就可以把内核代码安装到硬盘里面.

然后进入/usr/src/sys/i386/conf里面把 GENERIC 文件保存到/root目录下面,然后回到/root目

录,开始编辑内核。以下是我的GENERIC文件内容

#
# GENERIC -- Generic kernel configuration file for FreeBSD/i386
#
# For more information on this file, please read the handbook section on
# Kernel Configuration Files:
#
# http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
#
# The handbook is also available locally in /usr/share/doc/handbook
# if you've installed the doc distribution, otherwise always see the
# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
# latest information.
#
# An exhaustive list of options and more detailed explanations of the
# device lines is also present in the ../../conf/NOTES and NOTES files.
# If you are in doubt as to the purpose or necessity of a line, check first
# in NOTES.
#
# $FreeBSD: src/sys/i386/conf/GENERIC,v 1.413.2.6.2.2 2004/10/24 18:02:52 scottl Exp $

machine i386
#cpu I486_CPU 因为我的处理器版本比较高，所以这两句没什么用去掉
#cpu I586_CPU
cpu I686_CPU
ident GENERIC 这是重新编译后的内核文件名，应该改为你自己的内核名字我的内核名叫Free

# To statically compile in device wiring instead of /boot/device.hints
#hints "GENERIC.hints" # Default places to look for devices.

options SCHED_4BSD # 4BSD scheduler
options INET # InterNETworking
options INET6 # 启动IPv6不要
options FFS # Berkeley Fast Filesystem
options SOFTUPDATES # Enable FFS soft updates support
options UFS_ACL # Support for access control lists
options UFS_DIRHASH # Improve performance on big directories
options MD_ROOT # MD is a potential root device
options NFSCLIENT # 这几句都不要分别是nfs客户端与服务端

options NFSSERVER # 还有与DOS系统互访
options NFS_ROOT #
options MSDOSFS #

options CD9660 # ISO 9660 Filesystem
options PROCFS # Process filesystem (requires PSEUDOFS)
options PSEUDOFS # Pseudo-filesystem framework
options GEOM_GPT # GUID Partition Tables.
options COMPAT_43 # Compatible with BSD 4.3 [KEEP THIS!]
options COMPAT_FREEBSD4 # Compatible with FreeBSD4
options SCSI_DELAY=15000 # Delay (in ms) before probing SCSI
options KTRACE # ktrace(1) support
options SYSVSHM # SYSV-style shared memory
options SYSVMSG # SYSV-style message queues
options SYSVSEM # SYSV-style semaphores
options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
options KBD_INSTALL_CDEV # install a CDEV entry in /dev
options AHC_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~128k to driver.
options AHD_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~215k to driver.
options ADAPTIVE_GIANT # Giant mutex is adaptive.

device apic # I/O APIC可要可不要，我的不要了

# 系统总线一般不作修改
device isa
device eisa
device pci

# 软盘我把它删掉
device fdc

# ATA and ATAPI devices
device ata
device atadisk # ATA disk drives
device ataraid # ATA 阵列驱动我没有阵列所以也删掉了
device atapicd # ATAPI CDROM drives
device atapifd # ATAPI 软盘驱动删除
device atapist # 磁带机，删除
options ATA_STATIC_ID # 静态设备标号，删除

#以是SCSI系统与阵列，串口COM所以全部删除

# SCSI Controllers
device ahb # EISA AHA1742 family
device ahc # AHA2940 and onboard AIC7xxx devices
device ahd # AHA39320/29320 and onboard AIC79xx devices
device amd # AMD 53C974 (Tekram DC-390(T))
device isp # Qlogic family
device mpt # LSI-Logic MPT-Fusion
#device ncr # NCR/Symbios Logic
device sym # NCR/Symbios Logic (newer chipsets + those of `ncr')
device trm # Tekram DC395U/UW/F DC315U adapters

device adv # Advansys SCSI adapters
device adw # Advansys wide SCSI adapters
device aha # Adaptec 154x SCSI adapters
device aic # Adaptec 15[012]x SCSI adapters, AIC-6[23]60.
device bt # Buslogic/Mylex MultiMaster SCSI adapters

device ncv # NCR 53C500
device nsp # Workbit Ninja SCSI-3
device stg # TMC 18C30/18C50

# SCSI peripherals
device scbus # SCSI bus (required for SCSI)
device ch # SCSI media changers
device da # Direct Access (disks)
device sa # Sequential Access (tape etc)
device cd # CD
device pass # Passthrough device (direct SCSI access)
device ses # SCSI Environmental Services (and SAF-TE)

# RAID controllers interfaced to the SCSI subsystem
device amr # AMI MegaRAID
device asr # DPT SmartRAID V, VI and Adaptec SCSI RAID
device ciss # Compaq Smart RAID 5*
device dpt # DPT Smartcache III, IV - See NOTES for options
device hptmv # Highpoint RocketRAID 182x
device iir # Intel Integrated RAID
device ips # IBM (Adaptec) ServeRAID
device mly # Mylex AcceleRAID/eXtremeRAID
device twa # 3ware 9000 series PATA/SATA RAID

# RAID controllers
device aac # Adaptec FSA RAID
device aacp # SCSI passthrough for aac (requires CAM)
device ida # Compaq Smart RAID
device mlx # Mylex DAC960 family
device pst # Promise Supertrak SX6000
device twe # 3ware ATA RAID

# atkbdc0 controls both the keyboard and the PS/2 mouse
device atkbdc # AT 键盘控制器

device atkbd # AT 键盘
device psm # PS/2 鼠标

device vga # VGA 显卡

device splash # 屏保

#默认驱动器

device sc

# Enable this for the pcvt (VT220 compatible) console driver
#device vt
#options XSERVER # support for X server on a vt console
#options FAT_CURSOR # start with block cursor

device agp # AGP支持

# Floating point support - do not disable.
device npx

# Power management support (see NOTES for more options)
#device apm
# Add suspend/resume support for the i8254.
device pmtimer

# PCCARD (PCMCIA) support
# PCMCIA and cardbus bridge support
device cbb # cardbus (yenta) bridge
device pccard # PC Card (16-bit) bus
device cardbus # CardBus (32-bit) bus

# Serial (COM) ports
device sio # 8250, 16[45]50 based serial ports

# Parallel port
device ppc
device ppbus # Parallel port bus (required)
device lpt # Printer
device plip # TCP/IP over parallel
device ppi # Parallel port interface device
#device vpo # Requires scbus and da

# If you've got a "dumb" serial or parallel PCI card that is
# supported by the puc(4) glue driver, uncomment the following
# line to enable it (connects to the sio and/or ppc drivers):
#device puc

##以太网网卡驱动，请认真清楚自己的网卡是什么芯片否则删除了就无法驱动网卡

# PCI Ethernet NICs.
device de # DEC/Intel DC21x4x (``Tulip'')
device em # Intel PRO/1000 adapter Gigabit Ethernet Card
device ixgb # Intel PRO/10GbE Ethernet Card
device txp # 3Com 3cR990 (``Typhoon'')
device vx # 3Com 3c590, 3c595 (``Vortex'')

# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device miibus # MII bus支持不能删除

device bfe # Broadcom BCM440x 10/100 Ethernet
device bge # Broadcom BCM570xx Gigabit Ethernet
device dc # DEC/Intel 21143 and various workalikes
device fxp # Intel EtherExpress PRO/100B (82557, 82558)
device lge # Level 1 LXT1001 gigabit ethernet
device nge # NatSemi DP83820 gigabit ethernet
device pcn # AMD Am79C97x PCI 10/100 (precedence over 'lnc')
device re # RealTek 8139C+/8169/8169S/8110S
device rl # RealTek 8129/8139
device sf # Adaptec AIC-6915 (``Starfire'')
device sis # Silicon Integrated Systems SiS 900/SiS 7016
device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
device ste # Sundance ST201 (D-Link DFE-550TX)
device ti # Alteon Networks Tigon I/II gigabit Ethernet
device tl # Texas Instruments ThunderLAN
device tx # SMC EtherPower II (83c170 ``EPIC'')
device vge # VIA VT612x gigabit ethernet
device vr # VIA Rhine, Rhine II
device wb # Winbond W89C840F
device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')

# ISA Ethernet NICs. pccard NICs included.

#ISA网卡设备
device cs # Crystal Semiconductor CS89x0 NIC
# 'device ed' requires 'device miibus'
device ed # NE[12]000, SMC Ultra, 3c503, DS8390 cards
device ex # Intel EtherExpress Pro/10 and Pro/10+
device ep # Etherlink III based cards
device fe # Fujitsu MB8696x based cards
device ie # EtherExpress 8/16, 3C507, StarLAN 10 etc.
device lnc # NE2100, NE32-VL Lance Ethernet cards
device sn # SMC's 9000 series of Ethernet chips
device xe # Xircom pccard Ethernet

# ISA devices that use the old ISA shims
#device le

# Wireless NIC cards
device wlan # 802.11 support
device an # Aironet 4500/4800 802.11 wireless NICs.
device awi # BayStack 660 and others
device wi # WaveLAN/Intersil/Symbol 802.11 wireless NICs.
#device wl # Older non 802.11 Wavelan wireless NIC.

# Pseudo devices.
device loop # Network loopback
device mem # Memory and kernel memory devices
device io # I/O device
device random # Entropy device
device ether # Ethernet support
device sl # 内核级SLIP
device ppp # 内核级PPP
device tun # 隧道
device pty # Pseudo-ttys (telnet etc)
device md # 虚拟盘
device gif # IPv6系统
device faith # IPv6-to-IPv4 relaying (translation)

# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
device bpf # Berkeley packet filter

#下面的全删除

# USB support
device uhci # UHCI PCI->USB interface
device ohci # OHCI PCI->USB interface
device usb # USB Bus (required)
#device udbp # USB Double Bulk Pipe devices
device ugen # Generic
device uhid # "Human Interface Devices"
device ukbd # Keyboard
device ulpt # Printer
device umass # Disks/Mass storage - Requires scbus and da
device ums # Mouse
device urio # Diamond Rio 500 MP3 player
device uscanner # Scanners
# USB Ethernet, requires mii
device aue # ADMtek USB Ethernet
device axe # ASIX Electronics USB Ethernet
device cue # CATC USB Ethernet
device kue # Kawasaki LSI USB Ethernet
device rue # RealTek RTL8150 USB Ethernet

# FireWire support
device firewire # FireWire bus code
device sbp # SCSI over FireWire (Requires scbus and da)
device fwe # Ethernet over FireWire (non-standard!)

修改后的内核文件

#
# GENERIC -- Generic kernel configuration file for FreeBSD/i386
#
# For more information on this file, please read the handbook section on
# Kernel Configuration Files:
#
#    http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
#
# The handbook is also available locally in /usr/share/doc/handbook
# if you've installed the doc distribution, otherwise always see the
# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
# latest information.
#
# An exhaustive list of options and more detailed explanations of the
# device lines is also present in the ../../conf/NOTES and NOTES files.
# If you are in doubt as to the purpose or necessity of a line, check first
# in NOTES.
#
# $FreeBSD: src/sys/i386/conf/GENERIC,v 1.413.2.6.2.2 2004/10/24 18:02:52 scottl Exp $

machine  i386
cpu  I686_CPU
ident  Free
maxusers  0

# To statically compile in device wiring instead of /boot/device.hints
#hints  "GENERIC.hints"  # Default places to look for devices.

options  SCHED_4BSD  # 4BSD scheduler
options  INET   # InterNETworking
#options  INET6   # IPv6 communications protocols
options  FFS   # Berkeley Fast Filesystem
options  SOFTUPDATES  # Enable FFS soft updates support
options  UFS_ACL   # Support for access control lists
options  UFS_DIRHASH  # Improve performance on big directories
#options  MD_ROOT   # MD is a potential root device
#options  NFSCLIENT  # Network Filesystem Client
#options  NFSSERVER  # Network Filesystem Server
#options  NFS_ROOT  # NFS usable as /, requires NFSCLIENT
#options  MSDOSFS   # MSDOS Filesystem
options  CD9660   # ISO 9660 Filesystem
options  PROCFS   # Process filesystem (requires PSEUDOFS)
options  PSEUDOFS  # Pseudo-filesystem framework
options  GEOM_GPT  # GUID Partition Tables.
options  COMPAT_43  # Compatible with BSD 4.3 [KEEP THIS!]
options  COMPAT_FREEBSD4  # Compatible with FreeBSD4
options  SCSI_DELAY=500 # scsi检测时间
options  KTRACE   # ktrace(1) support
options  SYSVSHM   # SYSV-style shared memory
options  SYSVMSG   # SYSV-style message queues
options  SYSVSEM   # SYSV-style semaphores
options  _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
options  KBD_INSTALL_CDEV # install a CDEV entry in /dev
options  AHC_REG_PRETTY_PRINT # Print register bitfields in debug
     # output.  Adds ~128k to driver.
options  AHD_REG_PRETTY_PRINT # Print register bitfields in debug
     # output.  Adds ~215k to driver.
options  ADAPTIVE_GIANT  # Giant mutex is adaptive.

device  apic  # I/O APIC

# Bus support.  Do not remove isa, even if you have no isa slots
device  isa
device  eisa
device  pci


options IPFILETER
options TCP_DROP_SYNFIN 
options IPFIREWALL #防火墙 
options IPFIREWALL_FORWARD #允许透明代理 
options IPFIREWALL_VERBOSE #允许防火墙日志 
options IPFIREWALL_VERBOSE_LIMIT=100 #限制日志 
options IPFIREWALL_DEFAULT_TO_ACCEPT #默认允许所有IP包 
options IPDIVERT #启用由ipfw divert使用的转向IP套接字

# Floppy drives


# ATA and ATAPI devices
device  ata
device  atadisk  # ATA disk drives

device  atapicd  # ATAPI CDROM drives


# SCSI Controllers
#device  ncr  # NCR/Symbios Logic

# SCSI peripherals


# RAID controllers interfaced to the SCSI subsystem

# RAID controllers

# atkbdc0 controls both the keyboard and the PS/2 mouse
device  atkbdc  # AT keyboard controller
device  atkbd  # AT keyboard


device  vga  # VGA video card driver

device  splash  # Splash screen and screen saver support

# syscons is the default console driver, resembling an SCO console
device  sc

device  agp  # support several AGP chipsets

# Floating point support - do not disable.
device  npx

# PCCARD (PCMCIA) support
# PCMCIA and cardbus bridge support

# Serial (COM) ports

# Parallel port

# If you've got a "dumb" serial or parallel PCI card that is
# supported by the puc(4) glue driver, uncomment the following
# line to enable it (connects to the sio and/or ppc drivers):
#device         puc

# PCI Ethernet NICs.

# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device  miibus  # MII bus support
e  vge  # VIA VT612x gigabit ethernet
device  vr  # VIA Rhine, Rhine II
device  wb  # Winbond W89C840F
device  xl  # 3Com 3c90x (``Boomerang'', ``Cyclone'')

# ISA Ethernet NICs.  pccard NICs included.
device  cs  # Crystal Semiconductor CS89x0 NIC
# 'device ed' requires 'device miibus'

 ISA devices that use the old ISA shims

# Pseudo devices.
device  loop  # Network loopback
device  mem  # Memory and kernel memory devices
device  io  # I/O device
device  random  # Entropy device
device  ether  # Ethernet support
device  pty  # Pseudo-ttys (telnet etc)

# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
device  bpf  # Berkeley packet filter

# USB support
最后用命令config Free(这是我的内核名)，然后 cd ./compile/Free/,然后输入make depend
就开始编译了，最后输入make ,当编译完就输入make install重启动后就OK啦
如有不明请查看FreeBSD文档资料

最后用命令config Free(这是我的内核名)，然后 cd ./compile/Free/,然后输入make depend

就开始编译了，最后输入make ,当编译完就输入make install重启动后就OK啦

如有不明请查看FreeBSD文档资料