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| 关键词： nbsp sysroot mnt lib echo etc MOUNT kernel dev choice |
脚本使用说明：需要在宿主机上装两个硬盘，在测试的时候，只需要把第二块硬盘放到新的虚拟机中，然后启动就行了。 #!/bin/bash #:Title: #:Synopsis: #:Data: #:Version:1.0 #:Author:ro #:Options: #fdisk and fail the device DISK（）{ //封装磁盘分区格式化的函数 read -p "choice a disk[/dev/sdb]:" CHOICE NUM=`fdisk -l | grep $CHOICE |wc -l &>/dev/null` if [ "$NUM" -gt '0' ];then fdisk -l $CHOICE MOUNT=`mount -l | grep "^$CHOICE" &>/dev/null` MOUNTDISK=`echo $MOUNT` for I in $MOUNTDISK ;do if mount | grep "$I" &>/dev/null ;then mount | grep "$I" else echo "$I is not mounted." fi done fi } FAILDISK（） { dd if=/dev/zero of=/dev/sdb bs=512 count=1 sleep .1 return 1 } #create partions CREATEDISK（） { echo ' n p 1 +50M n p 2 +512M n p 3 +256M t 3 82 w' | fdisk $CHOICE &>/dev/null partprobe $CHOICE sleep .1 mkfs.ext3 ${CHOICE}1 &>/dev/null mkfs.ext3 ${CHOICE}2 &>/dev/null mkswap -f ${CHOICE}3 &>/dev/null #mkfs } #mount the fdisk //挂载磁盘分区 MOUNT（）{ if [ -d /mnt/$1 ];then if mount | grep "/mnt/$1";then umount /mnt/$1 mount $CHOICE$2 /mnt/$1 else mount $CHOICE$2 /mnt/$1 fi else mkdir /mnt/$1 mount $CHOICE$2 /mnt/$1 fi } # make the root and make directories in sysboot //创建root目录和sysboot目录 ROOTFS（）{ cd /mnt/$1 mkdir {boot,proc,sys,dev,home,root,etc/{rc.d,sysconfig,init.d},bin,sbin,lib,usr/{bin,sbin,lib,include},var/{log,run},tmp,mnt,opt,media} -pv &>/dev/null //创建基本的目录 chmod 777 tmp #the script for init 0 to shutdown the system cd /mnt/$1/etc/rc.d touch shutdown.sh cat >>shutdown.sh《EOF #!/bin/bash sync sleep 2 sync sync umount /dev/sda1 umount /dev/sda2 exec /sbin/halt -p EOF chmod +x shutdown.sh #the /sysroot/etc/inittab file and creat it touch /mnt/$1/etc/inittab cd /mnt/$1/etc cat >>inittab《EOF #default level. id:3:initdefault: #--->rc.sysinit. si::sysinit:/etc/rc.d/rc.sysinit #----->init 0 to shutdown. l0:0:wait:/etc/rc.d/shutdown.sh #----->single user mode. l1:1:wait:/sbin/init -t1 S #----->the terminals of the minilinux 1:2345:respawn:/sbin/mingetty tty1 2:2345:respawn:/sbin/mingetty tty2 EOF #cp the INTERNET CARD module to the minilinux cd /mnt/$1/lib mkdir -p modules cd modules cp /lib/modules/2.6.18-164.el5/kernel/drivers/net/mii.ko ./ cp /lib/modules/2.6.18-164.el5/kernel/drivers/net/pcnet32.ko ./ #the /etc/sysctl.conf file cd /mnt/$1/etc touch sysctl.conf cat >>sysctl.conf《EOF net.ipv4.ip_forward = 0 net.ipv4.ip_forward = 1 net.ipv4.conf.default.rp_filter = 1 net.ipv4.conf.default.accept_source_route = 0 kernel.sysrq = 0 kernel.core_uses_pid = 1 net.ipv4.tcp_syncookies = 1 kernel.msgmnb = 65536 kernel.msgmax = 65536 kernel.shmmax = 4294967295 kernel.shmall = 268435456 EOF #the /etc/rc.d/rc.sysinit file cd /mnt/$1/etc/rc.d touch rc.sysinit cat >>rc.sysinit《EOF #!/bin/bash echo -e "\t\tWelcome to \033[31;1mLittle\033[0m Linux…" ##the network modules an set IP address to the minilinux## if [[ -x /sbin/sysctl && -r /etc/syctl.conf ]];then echo $"configuring kernel paremeters" /sbin/sysctl -p /etc/sysctl.conf echo $"…kernel parameters done." fi [ -e /lib/modules/mii.ko ] && /sbin/insmod /lib/modules/mii.ko [ -e /lib/modules/pcnet32.ko ] && /sbin/insmod /lib/modules/pcnet32.ko echo "load the eth cart drivers ok" echo "set ip " /sbin/ifconfig lo 127.0.0.1/8 /sbin/ifconfig eth0 192.168.0.133/24 ##the network modules an set IP address to the minilinux## ###########The hostname for the minilinux [ -f /etc/sysconfig/network ] && source /etc/sysconfig/network [ -z $HOSTNAME ] && HOSTNAME=RoQi echo $HOSTNAME > /proc/sys/kernel/hostname ##########hostname for the systerm mount -n -o remount,rw / mount -n -a EOF chmod +x rc.sysinit #the fstab file cd /mnt/$1/etc/ touch fstab echo "/dev/sda2 / ext3 defaults 0 0" >fstab echo "/dev/sda1 /boot ext3 defaults 0 0" 》fstab echo "sysfs /sys sysfs defaults 0 0" 》fstab echo "proc /proc proc defaults 0 0" 》fstab #the issue file to show the login infomation cd /mnt/$1/etc/ touch issue cat >>issue《EOF Red Hat Enterprise Linux Server release 5.4 （Tikanga） Kernel on an \m ************************* *welcome to Ro's minilinux* *login:root;passwd: redhat* ************************* EOF ##the /proc/sys/kernel file mkdir -p /mnt/sysroot/proc/sys/kernel/ touch hostname cat >>hostname《EOF Ro.minilinux.org EOF #the yum.conf files mkdir -p /mnt/$1/etc/yum.repos.d/ touch yum.repo cat >>yum.repo《EOF [base] name=Instructor Server Repository baseurl=ftp://192.168.0.254/pub/Server gpgcheck=0 [VT] name=Instructor VT Repository baseurl=ftp://192.168.0.254/pub/VT gpgcheck=0 [Cluster] name=Instructor Cluster Repository baseurl=ftp://192.168.0.254/pub/Cluster gpgcheck=0 [ClusterStorage] name=Instructor ClusterStorage Repository baseurl=ftp://192.168.0.254/pub/ClusterStorage gpgcheck=0 EOF cd /mnt/$1/root/ touch .bash_profile echo "PS1='[\u@\h \W]\$'">.bash_profile } #this function use to cp files from normal machine to the minilinux CPLIB（）{ #cp the "login" file cp /tmp/myscript/login /mnt/sysroot/bin chmod +x /mnt/sysroot/bin/login #CP libnss files cp /usr/lib/libnss3.so /mnt/sysroot/usr/lib/ cp /usr/lib/libnssckbi.so /mnt/sysroot/usr/lib/ cp /usr/lib/libnssutil3.so /mnt/sysroot/usr/bin/ cp -d /usr/lib/libnss_files.so /mnt/sysroot/usr/lib/ cp -d /usr/lib/libnss_compat.so /mnt/sysroot/usr/lib/ cp -d /lib/libnss_files* /mnt/sysroot/lib/ cp -d /lib/libnss_compat* /mnt/sysroot/lib/ #cp login files cp -d /lib/libcrypt.so.1 /mnt/sysroot/lib/ cp -d /lib/libcrypt-2.5.so /mnt/sysroot/lib/ cp /lib/libm.so.6 /mnt/sysroot/lib/ #cp -d /lib/libcrypt-2.5.so /mnt/sysroot/lib/ #cp user and passwd files cp /etc/passwd /mnt/sysroot/etc/ cp /etc/shadow /mnt/sysroot/etc/ cp /etc/group /mnt/sysroot/etc/ cp /etc/gshadow /mnt/sysroot/etc/ #cp nsswitch.conf file cp /etc/nsswitch.conf /mnt/sysroot/etc/ } #the script use to cp the /bin to /mnt/sysroot/bin BINCP（）{ if which $1 &>/dev/null;then DR=`which $1 | grep -o "/.*" | sed -n 's/\（.*\）\/.*/\1/p'` FR=`which $1 | grep -o "/.*"` [ -d ${2}$DR ] || mkdir -pv ${2}$DR &> /dev/null [ -e ${2}$FR ]|| cp $FR ${2}$DR LIB=`ldd $FR | sed -n 's/.*\/lib\/\（.*\）/\1/gp' | awk '{print $1}'` for I in $LIB;do LDR=`ldd $FR | grep -o '/.*' | awk '{print $1}' | sed -n 's@\（/.*\）/'"$I"'@\1@gp'` [ -d ${2}$LDR ] || mkdir -pv ${2}$LDR &> /dev/null [ ! -e ${2}"$LDR"/"$LIB" ] && cp -f "$LDR"/"$I" ${2}$LDR done else echo "$1 is not exit." fi } #change the initrd. file INIT（）{ TMPDIR=`mktemp -d /tmp/little.XX` cd $TMPDIR zcat /boot/initrd-2.6.18-164.el5.img | cpio -id sed -i 's/echo Scanning and configuring dmraid supported devices/#&/g' $TMPDIR/init sed -i 's/echo Scanning logical volumes/#&/g' $TMPDIR/init sed -i 's/lvm vgscan --ignorelockingfailure/#&/g' $TMPDIR/init sed -i 's/echo Activating logical volumes/#&/g' $TMPDIR/init sed -i 's/lvm vgchange -ay --ignorelockingfailure vol0/#&/g' $TMPDIR/init sed -i 's/resume LABEL=SWAP-sda3/#&/g' $TMPDIR/init sed -i 's@mkrootdev -t ext3 -o defaults,ro /dev/vol0/root/@mkrootdev -t ext3 -o defaults,ro sda2@g' $TMPDIR/init find . | cpio -H newc -o --quiet | gzip -9 > $1/initrd.gz # cp /boot/vmlinuz-2.6.18-164.el5 $1/vmlinuz cp /boot/vmlinuz-2.6.28.10-myminilinux /mnt/boot/vmlinuz-2.6.28.10-myminilinux } ###the grub file GRUB（）{ # install grub grub-install --root-directory=/mnt $CHOICE &>/dev/null #the context of grub file cd /mnt/boot/grub touch grub.conf cat >>grub.conf《EOF default=0 timeout=10 title Welcome to Ro_Qi minilinux root （hd0,0） kernel /vmlinuz-2.6.28.10-myminilinux ro root=/dev/sda2 initrd /initrd.gz EOF } #the main function HELPWORD（）{ echo "./mknewlinux.sh -a:make a new linux." echo "./mknewlinux.sh -d DEVICE_NAME:make a new fdisk." echo "./mknewlinux.sh -m:mount the filesystem." echo "./mknewlinux.sh -r:Initialize the rootfs." echo "./mknewlinux.sh -b:copy the lib and command." echo "./mknewlinux.sh -k:edit the interd file." echo "./mknewlinux.sh -g:make grub.conf." echo "./mknewlinux.sh -h:help files." } while getopts "ad:mrbkgh" OPTS;do case $OPTS in a） DISK FAILDISK CREATEDISK MOUNT boot 1 MOUNT sysroot 2 ROOTFS sysroot CPLIB for I in ls ifconfig ping vim useradd userdel usermod yum lsmod modprobe touch insmod mkdir mingetty hostname mv rm vi runlevel sync halt chmod swapoff swapon sysctl umount cp cat init bash ;do BINCP $I /mnt/sysroot done ln -sv bash sh &>/dev/null INIT /mnt/boot rm -rf $TMPDIR GRUB sync sync sleep 2 ;; d） DISK $OPTARG FAILDISK $OPTARG CREATEDISK $OPTARG ;; m） MOUNT boot 1 MOUNT sysroot 2 ;; r） ROOTFS sysroot ;; b） CPLIB for I in pwd ls ifconfig ping useradd userdel usermod yum lsmod modprobe touch insmod mkdir mingetty hostname mv rm vi runlevel sync halt chmod swapoff swapon sysctl umount cp cat init bash ;do BINCP $I /mnt/sysroot done ln -sv bash sh &>/dev/null ;; k） NIT /mnt/boot rm -rf $TMPDIR ;; g） GRUB sync sync sleep 2 ;; h） HELPWORD ;; *） HELPWORD ;; esac done #cp -d /lib/libcrypt-2.5.so /mnt/sysroot/lib/ #ln -s bash sh |
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