推荐回答(2个)
从CentOS 6.5开始直接把iso文件写入U盘就行了。
Windows平台:
1.用UltraISO打开iso(如:CentOS-6.5-x86_64-bin-DVD1.iso)
2.然后点“启动”->"写入硬盘映像",硬盘驱动器是你的u盘,映像文件安装光盘iso,写入方式是USB-HDD+,点击“写入”按钮。完成后安装u盘就做好了。
Linux平台:
用 dd命令将iso文件写入u盘即可。dd if=iso文件 of=u盘。(如:dd if=/centos-6.5-x86_64-bin-DVD1.iso of=/dev/sdb1)
注:dd命令运行后不显示复制状态,要查看复制状态可以再打开一个终端,输入“while killall -USR1 dd; do sleep 5; done”查看复制状态。
这种方法64位,32位通吃。我安装的就是64位。
注意:只有从CentOS6.5开始才能用这种方法,6.4及以下版本还得用老方法。
可能有许多人已经知道这个方法了,但是网上很多教程还都是老方法。我写出来就是想传播一下,让新手少走弯路。不喜勿喷
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以前的解决方法:在Linux下对U盘进行分区,
-----------------------------以下摘抄自网络-----------------------------------
1.成为 root 用户。在 U 盘上创建一个小的 VFAT 分区(100M)和一个大的 Linux 分区。标记VFAT 分区为启动分区。
fdisk /dev/sdg
在程序 fdisk 中用“m”命令查看菜单选项。命令的顺序就像下面的这样
(没有“#”后面的注解):
d # 删除已有的分区,必要的话,重复多次以删除多个分区
n # 创建新分区
p # 分区类型为主分区
1 # 分区号为 1
# 确定分区起始处,采用默认值
+100M # 分区大小为 100M
t # 改变分区类型
1 # 选择分区号为 1 的分区
b # 类型为 VFAT
n # 创建新分区
p # 分区类型为主分区
2 # 分区号为 2
# 确定分区起始处,采用默认值
# 确定分区结束处,采用默认值
a # 切换启动标志
1 # 选择分区号为 1 的分区
w # 将所有改变写入磁盘
完成后使用命令 fidsk -l 查看,应该像下面的样子:
Disk /dev/sdg: 7948 MB, 7948206080 bytes
** heads, ** sectors/track, ***** cylinders
Units = cylinders of *** * 512 = ****** bytes
Disk identifier: **********
Device Boot Start End Blocks Id System
/dev/sdg1 * 1 ** ** b W95 FAT32
/dev/sdg2 ** ***** ******** 83 Linux
2.创建文件系统:
mkfs.vfat -n BOOT /dev/sdg1
mkfs.ext2 -m 0 -b 4096 -L DATA /dev/sdg2
完成后安全删除 U 盘,拔下后再插上 U 盘,分区应该被分别挂载
在/media/BOOT和/media/DATA。
3.把 CentOS 的镜像文件以及镜像中的 images 文件夹复制到 ext2 分区:
cd /dir/of/iso/images # 镜像文件的路径
mkdir /media/DATA/centos
mkdir /tmp/cdimage
mount -ro loop CentOS-6.0-i386-bin-DVD.iso /tmp/cdimage
cp -v CentOS-6.0-i386-bin-DVD.iso /media/DATA/centos/; sync
此时最好检查一下复制后的文件的校验和,通常不会有错。
cp -rv /tmp/cdimage/images/ /media/DATA/centos/
4.在 VFAT 分区和 MBR 上安装和配置 syslinux:
syslinux --stupid /dev/sdg1 # 或syslinux -s /dev/sdg1,以系统支
持的为准
dd if=/usr/share/syslinux/mbr.bin of=/dev/sdg # 在 Linuxdeepin
中 mbr.bin 位于/usr/lib/syslinux/mbr.bin,此处以实际为准,mbr.bin
还可能在其他位置
cd /media/BOOT
cp -rv /tmp/cdimage/isolinux syslinux
mv syslinux/isolinux.cfg syslinux/syslinux.cfg
rm -f syslinux/isolinux.bin
rm -f syslinux/vesamenu.c32
cp -v /usr/share/syslinux/vesamenu.c32 syslinux/
umount /tmp/cdimage
syslinux/syslinux.cfg # 用你最习惯的文档
编辑器在文件的每个区域的“append”后添加语句:
method=hd:sda2:/centos #
5.安全删除 U 盘,关机,再开机,调整为从 U 盘启动。
U盘启动盘制作步骤:
1、用U启动U盘启动盘制作工具做一个启动U盘;
2、下载一个GHOST系统镜像;
3、BIOS中设置从U盘启动,把之前下的镜像放到U盘中;
4、U盘启动后,在启动界面出选择“GHOST手动安装”类似意思的项,进去后选择安装源为你放在U盘里的系统,安装路径是你的C盘。或者在界面处选择进PE,然后PE里有个一键安装的软件(就在桌面),选择你放在U中的镜像,装在你的C盘。此时会出现一个进度窗口,走完后重启。
5、重启后取下U盘,接着就是机器自己自动安装了,只需要点“下一步”或“确定”,一直到安装完成
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