标题: Create a usb-disk for Install Centos [打印本页] 作者: hackin 时间: 2010-7-14 00:37 标题: Create a usb-disk for Install Centos 公司的USB光驱坏了，我也懒得每次插个外置光驱装系统，麻烦。遵领导指示，写点文档。
==Create a usb-disk for Install Centos==
*My Test Environment is CentOS,I found the grub in ubuntu is harder to use.
1. Plugin the usb-disk,using fdisk to create a single partion on it(I created a small partion with 100MB), and format this partion to ext3.
Here my usb-disk is /dev/sdb,you can use fdisk /dev/sdb to create a partion on it.
mkfs.ext3 /dev/sdb
2. After the disk formated,mount it.
mount /dev/sdb1 /mnt
3. Install GRUB on the device, if you need to Boot from a disk, we need some boot loader, such like GRUB.
grub-install /dev/sdb --root-directory=/mnt
4. copy the install files.
mount -o loop /home/hanchen/CentOS-5.4-x86_64-netinstall.iso /media
cp -a /media/isolinux /mnt
mv /mnt/isolinux /mnt/isolinux_64
5. Edit the grub conf file.
cp /boot/grub/grub.conf /mnt/boot/grub/
vi /mnt/boot/grub/grub.conf
Here is the content of this grub