FreeBSD如何跑diskless?

diskless;可以让;FreeBSD;client;PC;不需要硬碟就可以透过网路跑;FreeBSD 。;
以下是两个成功的范例:;

========;范例一;=========;
From:;client.bbs@csie.nctu.edu.tw;(client);
Newsgroups:;tw.bbs.comp.386bsd;
Subject:;Re:;如何使;diskless;的;pc;也能跑;freebsd;
Date:;27;May;1995;05:44:34;GMT;

(1);/etc/bootptab;建立diskless;pc;的资料;
(2);/etc/servives;之bootpd;及;tftpd;是否打开;
(3);/etc/inetd.conf;之tftpd;是否打开;
(4);bootpd;放入;/etc/rc;差不多最后面;
(若由inetd;来叫;,时常抢不过;ka9q;的;bootpd);
(5);建立diskless;pc;的;root;file;system.;ex:/home/diskless1;
(6);建立diskless;pc;的swap;file;system.;
建目录:;ex:/home/swapfs;
建swap;file:;若diskless;pc;的;ip:;140.115.10.222;
则;touch;/home/swapfs/swap.140.115.10.222;
(7);把;freebsd;整个系统;拷贝至;/home/diskless1;
(8);export;/home/diskless1;及;home/swapfs;给;diskless;pc;
(9);建立;/tftpboot/cfg.140.115.10.222;file;
rootfs;server:/home/diskless1;
swapfs;server:/home/swapfs;
swapsize;32000;
(10)至/usr/src/sys/i386/boot/netboot;make;*.com;或;*.rom;
make;install;
至/usr/mdec;取你要的;档案,开;diskless;pc;

大致上,是如此!;自己再try;!;
========================;

========;范例二;========;
From:;upleong@csie.nctu.edu.tw;(Bills);
Newsgroups:;tw.bbs.comp.386bsd;
Subject:;设定diskless;pc;step;by;step;
Date:;16;Oct;1996;03:17:58;GMT;


给大家分享一下.;实在太好玩了 。;

假设有两台机器,;
serverxy;是提供;diskless开机之server,;ip:;140.113.141.191;
clientab;为;diskless之机器;ip:;140.113.141.204;
以下范例是在同一domain之下测试成功的(注:;好像是在不同domain也可以);

所有要修改或增加的档案:;
a.;/etc/inetd.conf;
b.;/etc/services;
c.;/tftpboot/cfg.xxx.yyy.zzz.www;
d.;/etc/bootptab;
e.;/swapfs/swap.xxx.yyy.zzz.www;
f.;/sys/i386/conf/boot/netboot/*.com;
g.;/rootfs/clientab;;这里是整个系统;
h.;/etc/exports;

Server端的设定:;
(一)修改;/etc/inetd.conf;加入tftpd,;修改/etc/services;增加tftpd,;
bootpd的功能,;其中diskless的机器之root;file;system在;/rootfs/clientab 。;
/etc/inetd.conf:;
tftp;dgram;udp;wait;nobody;/usr/libexec/tftpd
tftpd;-l;/tftpboot;/rootfs/clientab;
/etc/services:;
tftp;69/tcp;#Trivial;File;Transfer;
tftp;69/udp;#Trivial;File;Transfer;
bootps;67/tcp;dhcps;#Bootstrap;Protocol;Server;
bootps;67/udp;dhcps;#Bootstrap;Protocol;Server;
bootpc;68/tcp;dhcpc;#Bootstrap;Protocol;Client;
bootpc;68/udp;dhcpc;#Bootstrap;Protocol;Client;

(三)以后启动;bootpd,;可以加入/etc/rc.local之中,;其设定档为/etc/bootptab 。;
/etc/rc.local:;
/usr/libexec/bootpd;-s;/etc/bootptab;

(二)修改;bootptab,;把该改的该一下就好了,;详细之参数可参考handbook或man 。;
/etc/bootptab:;
.default:;
:td=/tftpboot:hd=/clientab:bf=kernel:;;bf可设定boot;file;name;
:sm=255.255.255.0:;
:hn:;
:ds=140.113.1.1,;140.113.17.5:;;改为你的domain;name;server;
:ip=140.113.141.204:;;diskless;client之;IP;
:gw=140.113.141.254:;
:dn=dorm10.nctu.edu.tw:;;改一下domain;name;
:vm=rfc1048:;
clientab:ht=ether:ha=0000b46b0369:tc=.default:;
ht为client的网路种类;
ha为网路卡的hardware;address;

(四)设定;tftpboot的;config;file,;这是开机时;client从;server得到资讯的地方 。;
档案名皆为;cfg.[client;ip;addr] 。;eg.;cfg.140.113.141.191;
/tftpboot/cfg.140.113.141.204:;;档案名记得要改...;
rootfs;140.113.141.191:/rootfs/clientab;;rootfs放在server的;
/rootfs/clientab目录下;
swapfs;140.113.141.191:/swapfs;;swap;file放在/swapfs下;
swapsize;20000;;swap;size;in;KB;
hostname;clientab.dorm13.nctu.edu.tw;;client的host;name;
ip;140.113.141.204;;client的ip;address;
kernel;kernel;;kernel叫什么,;因为一开机就;

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