FreeBSD6.2架设之内核编译

Index:

　　简介

　　Requirements

　　Step 1 查看当前机器自检信息.

　　Step 2备份原内核文件.

　　Step 3 编辑新内核描述文件.

　　Step 4 启用磁盘配额.

　　Step 5 控制台中禁用热启动

　　Step 6 内核编译前后对比.

　　Step 2 编译后的清理工作.

　　F.A.Q.

　　Links to other sources

　　

　　简介

　　

　　为你自己定制专用的内核，加入一些特定功能如QUOTA，禁止控制台重启，声卡，防火墙等，总之可以自己做到很多适合自己机器的配置。

　　

　　Step 1 查看当前机器的自检信息.

　　

　　内核编译最好本地操作，不要远程编译。

　　要是你修改过/etc/make.conf文件，一定要还原此文件。

　　确保/etc/make.conf文件如下

　　Shell:

　　cat /etc/make.conf

　　# added by use.perl 2007-11-24 22:06:09

　　PERL_VER=5.8.8

　　PERL_VERSION=5.8.8

　　

　　查看当前机器的自检信息，取得CPU 内存显示卡硬盘网卡等信息Shell:

　　dmesg | less

　　

　　查看/usr/src/Makefile文件，此文件说明注意事项和具体操作步骤

　　Shell:

　　cd /usr/src/

　　less /usr/src/Makefile

　　# For individuals wanting to build from the sources currently on their

　　# system, the simple instructions are:

　　#

　　# 1. `cd /usr/src' (or to the directory containing your source tree).

　　# 2. `make world'

　　#

　　# For individuals wanting to upgrade their sources (even if only a

　　# delta of a few days):

　　#

　　# 1. `cd /usr/src' (or to the directory containing your source tree).

　　# 2. `make buildworld'

　　# 3. `make buildkernel KERNCONF=YOUR_KERNEL_HERE' (default is GENERIC).

　　# 4. `make installkernel KERNCONF=YOUR_KERNEL_HERE' (default is GENERIC).

　　# 5. `reboot' (in single user mode: boot -s from the loader prompt).

　　# 6. `mergemaster -p'

　　# 7. `make installworld'

　　# 8. `make delete-old'

　　# 9. `mergemaster'

　　# 10. `reboot'

　　# 11. `make delete-old-libs' (in case no 3rd party program uses them anymore)

　　

　　

　　Step 2 备份当前内核描述文件.

　　

　　查看当前机器内核描述文件

　　Shell:

　　uname -a

　　FreeBSD WOW.freemongolia.cn 6.2-RELEASE FreeBSD 6.2-RELEASE #0: Fri Jan 12 10:40:27 UTC 2007 [e-mail]:/usr/obj/usr/src/sys/GENERIC i386

　　

　　备份当前机器内核描述文件

　　复制/usr/src/sys/i386/conf/GENERIC文件到/etc/WOW (WOW表示你自定义的名称)

　　Shell:

　　cp /usr/src/sys/i386/conf/GENERIC /etc/WOW

　　创建一个链接到/usr/src/sys/i386/conf/GENERIC/目录

　　Shell:

　　cd /usr/src/sys/i386/conf/

　　ln -s /etc/WOW /usr/src/sys/i386/conf/

　　

　　

　　

　　Step 3 编辑内核描述文件.

　　

　　编辑内核描述文件

　　添加磁盘配额、禁用控制台中的热启动、等功能

　　

　　编辑内核描述文件,vi /usr/src/sys/i386/conf/WOW

　　Shell:

　　vi /usr/src/sys/i386/conf/WOW

　　

　　Editor：

　　# 具体选项请参考http://www.freebsd.org/doc/zh_CN.GB2312/books/handbook/kernelconfig-config.html

　　ident WOW #内核标记名称

　　

　　增加以下内容

　　options QUOTA #启用磁盘配额

　　options SC_DISABLE_REBOOT #在控制台禁用CTRL+ALT+DEL键

　　存盘退出

　　以下2项不要注销

　　device scbus # SCSI bus (required for SCSI)

　　

　　device da # Direct Access (disks)

　　

　　Step 4 编译内核.

　　

　　编译内核

　　根据/usr/src/Makefile文件方法，进行编译内核

　　1、cd /usr/src (进入编译核心目录)

　　Shell:

　　cd /usr/src

　　2、make buildworld(很漫长的等待大约1小时左右，有没有更漫长的事情？有。Ports安装Xorg和Gnome，3天3夜，3天3夜。嗯？好熟悉的旋律……..) (更新版本)

　　Shell:

　　make buildworld

　　3、make buildkernel KERNCONF=你的内核描述文件名 (default is GENERIC) (下面的WOW是我的内核描述文件名称) (正式编译核心大约用时20分钟)

　　Shell:

　　make buildkernel KERNCONF=WOW

　　4、make installkernel KERNCONF=你的内核描述文件名 (default is GENERIC) (安装核心大约用时1分钟)

　　Shell:

　　make installkernel KERNCONF=WOW

　　5、reboot (重新启动进入单人模式，重启选择4；具体操作可以查看第1章忘记root密码怎么办)

　　Shell:

　　reboot

　　以下几步为在单人模式下操作

　　mount -u(重新挂载，参数-u表示挂载后可读写)

　　Shell:

　　单人模式#mount -u

　　mount -a(挂载全部磁盘，参数-a表示全部磁盘)

　　Shell:

　　单人模式#mount -a

　　cd /usr/src (进入编译核心目录)

　　Shell:

　　单人模式#cd /usr/src

　　mergemaster -p (此命令用来检验内核描述文件正确性)

　　Shell:

　　单人模式#mergemaster -p

　　*** Comparison complete

　　Do you wish to delete what is left of /var/tmp/temproot?[no]

　　make installworld (安装所有新的系统源代码,大约用时3分钟)

　　Shell:

　　单人模式#make installworld

　　mergemaster 系统询问是否删除/var/tmp/temproot目录时，按d键进行删除(用来更新或修改/etc的配置文件)

　　Shell:

　　单人模式#mergemaster

　　How should I deal with this? [Use the existing /var/tmp/temproot]d

　　系统提示发现/etc/rc.d/jail文件与旧的对比有变化，按键盘q键退出查看。询问对新文件怎么处理？按i键安装？还是按d键删除？还是按m键？我们没有编辑过的文件就选择新的，所以按i键选择安装。

　　Shell:

　　*** Displaying differences between ./etc/rc.d/jail and installed version

　　--- /etc/rc.d/jailFri Jan 12 15:42:21 2007

　　q

　　How should I deal with this? [Leave it for later]i

　　系统提示发现/etc/hosts文件与旧的对比有变化，按键盘q键退出查看。询问对新文件怎么处理？按i键安装？还是按d键删除？还是按m键？我们编辑过的文件就保留旧的配置，所以按d键选择删除新的。

　　Shell:

　　*** Displaying differences between ./etc/hosts and installed version

　　--- /etc/hosts Sun Nov 25 05:21:04 2007

　　+++./etc/hosts Sun Nov 25 20:29:23 2007

　　q

　　How should I deal with this? [Leave it for later]d

　　系统提示发现/etc/mote文件与旧的对比有变化，按键盘q键退出查看。询问对新文件怎么处理？按i键安装？还是按d键删除？还是按m键？motd的作用就是你登入系统时出现的那个欢迎词，我们看看新的欢迎词有没有变化，所以按i键选择安装新的。

　　Shell:

　　*** Displaying differences between ./etc/motd and installed version

　　--- /etc/motd Sun Nov 24 21:22:58 2007

　　+++./etc/motdSun Nov 25 20:29:23 2007

　　q

　　How should I deal with this? [Leave it for later]i

　　要不要删除/var/tmp/temproot目录，直接回车就行。

　　Shell:

　　Do you wish to delete what is left of /var/tmp/temproot? [no]

　　reboot (重启服务器)

　　Shell:

　　单人模式#reboot

　　

　　Step 5 内核编译前后对比.

　　

　　激动人心的时刻来临了，等了好几个小时后，我们现在要看看是否新内核安装成功了。

　　内核文件大小对比

　　编译后：

　　Shell:

　　du -h /boot/kernel

　　18M /boot/kernel

　　du -h /boot/kernel/kernel

　　2.7M /boot/kernel/kernel

　　

　　编译前：

　　Shell:

　　du -h /boot/kernel.old/

　　23M /boot/kernel.old/

　　du -h /boot/kernel.old/kernel

　　6.8M /boot/kernel.old/kernel

　　内核配置文件名称对比

　　编译后：

　　Shell:

　　uname -a

　　FreeBSD ohaha.3322.org 6.2-RELEASE-p8 FreeBSD 6.2-RELEASE-p8#0: Sun Nov 25 12:04:05 CST 2007 [e-mail]:/usr/obj/usr/src/sys/WOW i386

　　

　　编译前：

　　Shell:

　　uname -a

　　FreeBSD ohaha.3322.org 6.2-RELEASE FreeBSD 6.2-RELEASE#0: Fri Jan 12 10:40:27 UTC 2007 [e-mail]:/usr/obj/usr/src/sys/GENERIC i386

　　

　　内核编译前后SSH侦听端口协议对比

　　编译后(去除IPV6支持)：

　　Shell:

　　netstat -an

　　Active Internet connections (including servers)

　　Proto Recv-Q Send-Q Local Address Foreign Address (state)

　　tcp4 0 52 192.168.0.88.22 192.168.0.8.1155 ESTABLISHED

　　tcp4 0 0 *.22 *.* LISTEN

　　udp4 0 0 *.514 *.*

　　Active UNIX domain sockets

　　Address Type Recv-Q Send-Q Inode Conn Refs Nextref Addr

　　c4e8071cstream 0 0 0 c4e807a8 0 0

　　

　　

　　编译前：

　　Shell:

　　netstat -an

　　Active Internet connections (including servers)

　　Proto Recv-Q Send-Q Local Address Foreign Address (state)

　　tcp4 0 0 127.0.0.1.25 *.* LISTEN

　　tcp4 0 0 *.22 *.* LISTEN

　　tcp6 0 0 *.22 *.* LISTEN

　　udp4 0 0 *.514 *.*

　　udp6 0 0 *.514 *.*

　　Active UNIX domain sockets

　　Address Type Recv-Q Send-Q Inode Conn Refs Nextref Addr

　　c4e7c9d8 stream 0 0 0 0 0 0

　　

　　登入时欢迎信息的对比

　　编译后(显示更人性化，居然会有一些操作技巧提示^_^)：

　　Shell:

　　FreeBSD 6.2-RELEASE-p8 (WOW) #0: Sun Nov 25 12:04:05 CST 2007

　　

　　Welcome to FreeBSD!

　　

　　Before seeking technical support, please use the following resources:

　　>.............

　　You may also use sysinstall(8) to re-enter the installation and

　　configuration utility. Edit /etc/motd to change this login announcement.

　　

　　To obtain a neat PostScript rendering of a manual page, use ``-t'' switch

　　of the man(1) utility: ``man -t ''. For example:

　　

　　man -t grep >grep.ps # Save the PostScript version to a file

　　or

　　man -t printf | lp # Send the PostScript directly to printer

　　

　　编译前：

　　Shell:

　　Welcome to FreeBSD!

　　

　　Before seeking technical support, please use the following resources:

　　>………………

　　

　　注：文中所说大约XX时间，是根据不同的机器配置会有出入。主要是看你的CPU，CPU够强劲，速度就够快，时间也就会少。

　　编译内核时CPU和内存占用

　　Shell:

　　top

　　last pid: 37445; load averages: 1.01, 0.74, 0.50 up 0+03:09:41 04:04:14

　　35 processes: 2 running, 33 sleeping

　　CPU states: 92.9%user, 0.0% nice, 6.7% system, 0.4% interrupt, 0.0% idle

　　Mem: 26MActive, 721MInact, 141MWired, 200K Cache, 111MBuf, 107MFree

　　Swap: 768MTotal, 768MFree

　　

　　PID USERNAME THR PRI NICE SIZE RESSTATE TIME WCPU COMMAND

　　37444 0 1 121 0 6568K 6028K RUN 0:00 3.00% cc1

　　

　　

　　Step 4 内核编译完后的清理.

　　内核编译完成后，需要进行清理为下次编译做准备:

　　清理编译内核后的临时文件Shell:

　　cd /usr/obj/

　　chflags -R noschg *

　　rm -rf *

　　

　　至此内核编译安装完成。

　　

　　

　　Step 6 F.A.Q.

　　

　　

　　

　　

　　Links to other sources

　　

　　FreeBSD使用手册

　　

　　FreeBSD使用手册_内核配置

　　

　　附我的内核配置文件

　　

　　# 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 1.429.2.13 2006/10/09 18:41:36 simon Exp $

　　

　　machine i386

　　#cpu I486_CPU

　　#cpu I586_CPU

　　cpu I686_CPU

　　ident WOW

　　

　　# To statically compile in device wiring instead of /boot/device.hints

　　#hints "GENERIC.hints" # Default places to look for devices.

　　

　　#makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols

　　

　　options SCHED_4BSD # 4BSD scheduler

　　options PREEMPTION # Enable kernel thread preemption

　　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 COMPAT_FREEBSD5 # Compatible with FreeBSD5

　　options SCSI_DELAY=1000 # 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 ADAPTIVE_GIANT # Giant mutex is adaptive.

　　options QUOTA # Enable User's QUOTA

　　options SC_DISABLE_REBOOT # Disable Console Restart

　　options SMP # Symmetric MultiProcessor Kernel

　　

　　device apic # I/O APIC

　　

　　# Bus support.

　　device eisa

　　device pci

　　

　　# Floppy drives

　　#device fdc

　　

　　# ATA and ATAPI devices

　　device ata

　　device atadisk # ATA disk drives

　　#device ataraid # ATA RAID drives

　　device atapicd # ATAPI CDROM drives

　　#device atapifd # ATAPI floppy drives

　　#device atapist # ATAPI tape drives

　　options ATA_STATIC_ID # Static device numbering

　　

　　# SCSI Controllers

　　#device ahb # EISA AHA1742 family

　　#device ahc # AHA2940 and onboard AIC7xxx devices

　　options AHC_REG_PRETTY_PRINT # Print register bitfields in debug

　　# output. Adds ~128k to driver.

　　#device ahd # AHA39320/29320 and onboard AIC79xx devices

　　options AHD_REG_PRETTY_PRINT # Print register bitfields in debug

　　# output. Adds ~215k to driver.

　　#device amd # AMD 53C974 (Tekram DC-390(T))

　　#device isp # Qlogic family

　　#device ispfw # Firmware for QLogic HBAs- normally a module

　　#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 arcmsr # Areca SATA II RAID

　　#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 rr232x # Highpoint RocketRAID 232x

　　#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 mfi # LSI MegaRAID SAS

　　#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 keyboard controller

　　device atkbd # AT keyboard

　　device psm # PS/2 mouse

　　

　　device kbdmux # keyboard multiplexer

　　

　　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

　　

　　# 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 # support several AGP chipsets

　　

　　# 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

　　

　　# 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 support

　　#device bce # Broadcom BCM5706/BCM5708 Gigabit Ethernet

　　#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 nve # nVidia nForce MCP on-board Ethernet Networking

　　#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 stge # Sundance/Tamarack TC9021 gigabit Ethernet

　　#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.

　　#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

　　

　　# Wireless NIC cards

　　device wlan # 802.11 support

　　#device wlan_wep # 802.11 WEP support

　　#device wlan_ccmp # 802.11 CCMP support

　　#device wlan_tkip # 802.11 TKIP support

　　#device an # Aironet 4500/4800 802.11 wireless NICs.

　　#device ath # Atheros pci/cardbus NIC's

　　#device ath_hal # Atheros HAL (Hardware Access Layer)

　　#device ath_rate_sample # SampleRate tx rate control for ath

　　#device awi # BayStack 660 and others

　　#device ral # Ralink Technology RT2500 wireless NICs.

　　#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 random # Entropy device

　　device ether # Ethernet support

　　device sl # Kernel SLIP

　　device ppp # Kernel PPP

　　device tun # Packet tunnel.

　　device pty # Pseudo-ttys (telnet etc)

　　device md # Memory "disks"

　　device gif # IPv6 and IPv4 tunneling

　　device faith # IPv6-to-IPv4 relaying (translation)

　　

　　# The `bpf' device enables the Berkeley Packet Filter.

　　# Be aware of the administrative consequences of enabling this!

　　# Note that 'bpf' is required for DHCP.

　　device bpf # Berkeleypacket filter

　　

　　# USB support

　　device uhci # UHCI PCI->USB interface

　　device ohci # OHCI PCI->USB interface

　　device ehci # EHCI PCI->USB interface (USB 2.0)

　　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 ural # Ralink Technology RT2500USB wireless NICs

　　#device urio # Diamond Rio 500 MP3 player

　　device uscanner # Scanners

　　# USB Ethernet, requires miibus

　　#device aue # ADMtek USB Ethernet

　　#device axe # ASIX Electronics USB Ethernet

　　#device cdce # Generic USB over 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!)