功能：自动检测是否有尚未分区的数据盘，格式化新的数据盘并自动挂载
解决了什么问题：一键式检测是否有尚未分区的数据盘，并能对其格式化和自动挂载，省去了复杂的命令和步骤
执行方法：以root身份执行命令
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wget http://mirrors.linuxeye.com/scripts/auto_fdisk.sh
chmod +x auto_fdisk.sh
./auto_fdisk.sh
结果：出现如下即自动分区、格式化、挂载成功：
脚本内容如下：
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#!/bin/bash
# author: yeho <lj2007331 at gmail.com>
# blog: https://blog.linuxeye.com
#
# notes: oneinstack for centos/radhat 5+ debian 6+ and ubuntu 12+
#
# project home page:
# http://oneinstack.com
# https://github.com/lj2007331/oneinstack
export path=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
clear
printf “
#######################################################################
# oneinstack for centos/radhat 5+ debian 6+ and ubuntu 12+ #
# auto fdisk #
# for more information please visit http://oneinstack.com #
#######################################################################
“
echo=echo
for cmd in echo /bin/echo; do
$cmd >/dev/null 2>&1 || continue
if ! $cmd -e “” | grep -qe ^-e; then
echo=$cmd
break
fi
done
csi=$($echo -e “\033[“)
cend=”${csi}0m”
cdgreen=”${csi}32m”
cred=”${csi}1;31m”
cgreen=”${csi}1;32m”
cyellow=”${csi}1;33m”
cblue=”${csi}1;34m”
cmagenta=”${csi}1;35m”
ccyan=”${csi}1;36m”
csuccess=”$cdgreen”
cfailure=”$cred”
cquestion=”$cmagenta”
cwarning=”$cyellow”
cmsg=”$ccyan”
# check if user is root
[ $(id -u) != “0” ] && { echo “${cfailure}error: you must be root to run this script${cend}”; exit 1; }
mount_dir=/data
fstab_file=/etc/fstab
count=0
tmp1=/tmp/.tmp1
tmp2=/tmp/.tmp2
> $tmp1
> $tmp2
# check lock file, one time only let the script run one time
lockfile=/tmp/.$(basename $0)
if [ -f “$lockfile” ];then
echo
echo “${cwarning}the script is already exist, please next time to run this script${cend}”
echo
exit
else
echo
echo “${cmsg}step 1.no lock file, begin to create lock file and continue${cend}”
echo
touch $lockfile
fi
# check disk partition
check_disk() {
> $lockfile
for i in `fdisk -l | grep “disk” | grep “/dev” | awk {print $2} | awk -f: {print $1} | grep “vd”`
do
device_count=$(fdisk -l $i | grep “$i” | awk {print $2} | awk -f: {print $1} | wc -l)
new_mount=$(df -h)
if [ $device_count -lt 2 ];then
if [ -n “$(echo $new_mount | grep -w “$i”)” -o “$(grep -v ^# $fstab_file | grep -v ^$ | awk {print $1,$2,$3} | grep -w “$i” | awk {print $2})” == / -o “$(grep -v ^# $fstab_file | grep -v ^$ | awk {print $1,$2,$3} | grep -w “$i” | awk {print $3})” == swap ];then
echo “${cwarning}the $i disk is mounted${cend}”
else
echo $i >> $lockfile
echo “you have a free disk, now will fdisk it and mount it”
fi
fi
done
disk_list=$(cat $lockfile)
if [ “x$disk_list” == “x” ];then
echo
echo “${cwarning}no free disk need to be fdisk. exit script${cend}”
echo
rm -rf $lockfile
exit 0
else
echo “${cmsg}this system have free disk :${cend}”
for i in `echo $disk_list`
do
echo “$i”
count=$((count+1))
done
[ $count -gt 1 ] && { echo “${cwarning}this system has at least two free disk, you must manually mount it${cend}”; exit 0; }
fi
}
# check os
check_os() {
os_release=$(grep “aliyun linux release” /etc/issue 2>/dev/null)
os_release_2=$(grep “aliyun linux release” /etc/aliyun-release 2>/dev/null)
if [ “$os_release” ] && [ “$os_release_2” ];then
if echo “$os_release” | grep “release 5” >/dev/null 2>&1;then
os_release=aliyun5
modify_env
fi
fi
}
# install ext4
modify_env() {
modprobe ext4
yum -y install e4fsprogs
}
# fdisk ,formating and create the file system
fdisk_fun() {
fdisk -s 56 $1 << eof
n
p
1
wq
eof
sleep 5
mkfs.ext4 ${1}1
}
# make directory
make_dir() {
echo “${cmsg}step 4.begin to make directory${cend}”
[ -d “$mount_dir” ] && mv ${mount_dir}{,_bk}
mkdir -p $mount_dir
echo “$mount_dir” >> $tmp1
}
# config /etc/fstab and mount device
main() {
for i in `echo $disk_list`
do
echo
echo “${cmsg}step 3.begin to fdisk free disk${cend}”
[ -n “`df -h | grep ${i}1`” ] && { echo “${cfailure}the ${i}1 already mount${cend}”; echo; exit 0; }
fdisk_fun $i > /dev/null 2>&1
echo
echo “${i}1” >> $tmp2
done
make_dir
> $lockfile
paste $tmp2 $tmp1 > $lockfile
echo
echo “${cmsg}step 5.begin to write configuration to /etc/fstab and mount device${cend}”
while read a b
do
[ -z “`grep ^${a} $fstab_file`” -a -z “`grep ${b} $fstab_file`” ] && echo “${a} $b ext4 defaults 0 0” >> $fstab_file
done < $lockfile
mount -a
echo
}
# start script
echo “${cmsg}step 2.begin to check free disk${cend}”
#service mysqld stop
#mv /data /root
check_os
check_disk
main
df -h
#mv /root/data/* /data
#service mysqld start
rm -rf $lockfile $tmp1 $tmp2
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