合並CentOS鏡像

#1, 創建目錄
rm -rf /media/dvd1 /media/dvd2 /media/CentOS
mkdir -pv /media/dvd1 /media/dvd2 /media/CentOS
#2, 掛載鏡像
mount -o loop /root/CentOS-6.5-i386-bin-DVD1to2/CentOS-6.5-i386-bin-DVD1.iso /media/dvd1
mount -o loop /root/CentOS-6.5-i386-bin-DVD1to2/CentOS-6.5-i386-bin-DVD2.iso /media/dvd2
#3, 拷貝文件
cp -af /media/dvd1/* /media/CentOS
cp -af /media/dvd2/Packages/*.rpm /media/CentOS/Packages
#4, 追加並排序
cat /media/dvd2/Packages/TRANS.TBL >> /media/CentOS/Packages/TRANS.TBL
mv /media/CentOS/Packages/{TRANS.TBL,TRANS.TBL.BAK} 
sort /media/CentOS/Packages/TRANS.TBL.BAK > /media/CentOS/Packages/TRANS.TBL 
rm -rf /media/CentOS/Packages/TRANS.TBL.BAK
#5, 生成鏡像
mkisofs -r -o /root/CentOS-6.5-i386-bin-DVD.iso /media/CentOS
#6, 卸載鏡像
umount /media/dvd1
umount /media/dvd2
#7, 刪除目錄
rm -rf /media/dvd1 /media/dvd2 /media/CentOS