制作CentOS 6.4 U盘启动安装盘
下面将对U盘进行分区第一个分区为FAT32，引导计算机进行系统安装，第二个分区为EXT2,存放我们的系统ISO文件。
删除原有分区
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[root@localhost ~]# fdisk /dev/sdb
WARNING: DOS-compatible mode is deprecated. It's strongly recommended to
? ? ? ? switch off the mode (command 'c') and change display units to
? ? ? ? sectors (command 'u').
Command (m for help): d
Selected partition 4
Command (m for help): p
Disk /dev/sdb: 15.5 GB, 15479597056 bytes
255 heads, 63 sectors/track, 1881 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xcad4ebea
? Device Boot? ? ? Start? ? ? ? End? ? ? Blocks? Id? System
Command (m for help): n
Command action
? e? extended
? p? primary partition (1-4)
p
Partition number (1-4): 1
First cylinder (1-1881, default 1):
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-1881, default 1881): +250M
Command (m for help): t
Selected partition 1
Hex code (type L to list codes): l
0? Empty? ? ? ? ? 24? NEC DOS? ? ? ? 81? Minix / old Lin bf? Solaris? ? ? ?
1? FAT12? ? ? ? ? 39? Plan 9? ? ? ? ? 82? Linux swap / So c1? DRDOS/sec (FAT-
2? XENIX root? ? ? 3c? PartitionMagic? 83? Linux? ? ? ? ? c4? DRDOS/sec (FAT-
3? XENIX usr? ? ? 40? Venix 80286? ? 84? OS/2 hidden C:? c6? DRDOS/sec (FAT-
4? FAT16 <32M? ? ? 41? PPC PReP Boot? 85? Linux extended? c7? Syrinx? ? ? ?
5? Extended? ? ? ? 42? SFS? ? ? ? ? ? 86? NTFS volume set da? Non-FS data? ?
6? FAT16? ? ? ? ? 4d? QNX4.x? ? ? ? ? 87? NTFS volume set db? CP/M / CTOS / .
7? HPFS/NTFS? ? ? 4e? QNX4.x 2nd part 88? Linux plaintext de? Dell Utility?
8? AIX? ? ? ? ? ? 4f? QNX4.x 3rd part 8e? Linux LVM? ? ? df? BootIt? ? ? ?
9? AIX bootable? ? 50? OnTrack DM? ? ? 93? Amoeba? ? ? ? ? e1? DOS access? ?
a? OS/2 Boot Manag 51? OnTrack DM6 Aux 94? Amoeba BBT? ? ? e3? DOS R/O? ? ? ?
b? W95 FAT32? ? ? 52? CP/M? ? ? ? ? ? 9f? BSD/OS? ? ? ? ? e4? SpeedStor? ? ?
c? W95 FAT32 (LBA) 53? OnTrack DM6 Aux a0? IBM Thinkpad hi eb? BeOS fs? ? ? ?
e? W95 FAT16 (LBA) 54? OnTrackDM6? ? ? a5? FreeBSD? ? ? ? ee? GPT? ? ? ? ? ?
f? W95 Ext'd (LBA) 55? EZ-Drive? ? ? ? a6? OpenBSD? ? ? ? ef? EFI (FAT-12/16/
10? OPUS? ? ? ? ? ? 56? Golden Bow? ? ? a7? NeXTSTEP? ? ? ? f0? Linux/PA-RISC b
11? Hidden FAT12? ? 5c? Priam Edisk? ? a8? Darwin UFS? ? ? f1? SpeedStor? ? ?
12? Compaq diagnost 61? SpeedStor? ? ? a9? NetBSD? ? ? ? ? f4? SpeedStor? ? ?
14? Hidden FAT16 <3 63? GNU HURD or Sys ab? Darwin boot? ? f2? DOS secondary?
16? Hidden FAT16? ? 64? Novell Netware? af? HFS / HFS+? ? ? fb? VMware VMFS? ?
17? Hidden HPFS/NTF 65? Novell Netware? b7? BSDI fs? ? ? ? fc? VMware VMKCORE
18? AST SmartSleep? 70? DiskSecure Mult b8? BSDI swap? ? ? fd? Linux raid auto
1b? Hidden W95 FAT3 75? PC/IX? ? ? ? ? bb? Boot Wizard hid fe? LANstep? ? ? ?
1c? Hidden W95 FAT3 80? Old Minix? ? ? be? Solaris boot? ? ff? BBT? ? ? ? ? ?
1e? Hidden W95 FAT1
Hex code (type L to list codes): b
Changed system type of partition 1 to b (W95 FAT32)
Command (m for help): n
Command action
? e? extended
? p? primary partition (1-4)
p
Partition number (1-4): 2
First cylinder (34-1881, default 34):
Using default value 34
Last cylinder, +cylinders or +size{K,M,G} (34-1881, default 1881):
Using default value 1881
Command (m for help): t
Partition number (1-4): 2
Hex code (type L to list codes): 83
Command (m for help): p
Disk /dev/sdb: 15.5 GB, 15479597056 bytes
255 heads, 63 sectors/track, 1881 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xcad4ebea
? Device Boot? ? ? Start? ? ? ? End? ? ? Blocks? Id? System
/dev/sdb1? ? ? ? ? ? ? 1? ? ? ? ? 33? ? ? 265041? ? b? W95 FAT32
/dev/sdb2? ? ? ? ? ? ? 34? ? ? ? 1881? ? 14844060? 83? Linux
Command (m for help): a
Partition number (1-4): 1
Command (m for help): p
Disk /dev/sdb: 15.5 GB, 15479597056 bytes
255 heads, 63 sectors/track, 1881 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xcad4ebea
? Device Boot? ? ? Start? ? ? ? End? ? ? Blocks? Id? System
/dev/sdb1? *? ? ? ? ? 1? ? ? ? ? 33? ? ? 265041? ? b? W95 FAT32
/dev/sdb2? ? ? ? ? ? ? 34? ? ? ? 1881? ? 14844060? 83? Linux
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
WARNING: If you have created or modified any DOS 6.x
partitions, please see the fdisk manual page for additional
information.
Syncing disks.
[root@localhost ~]#
格式化U盘的两个分区，并命名第一个分区卷名为boot，FAT32格式,第二个卷名为data，ext2格式,这个卷名大家随便起，各人习惯而已。
挂载boot分区和data分区到/mnt目录下
拷贝CentOS6.4第一张光盘CentOS-6.4-x86_64-bin-DVD1.iso中isolinux目录到U盘boot分区中并改名为syslinux目录，然后重命名isolinux.cfg文件为syslinux.cfg。
如果系统中没有安装syslinux工具，yum install syslinux安装一下。
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使用syslinux工具将U盘的/dev/sdb1分区制作成启动盘，拷贝光盘中image目录到boot分区。
这样CentOS的U盘启动盘就OK了，接着我们将CentOS的两个DVDISO文件拷贝到U盘的data分区。CENTOS6.4 x86_64的ISO文件拷贝时间比较长，大约半小时到1小时之间。
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vmware 虚拟机挂载u盘?点击vmware菜单 vm--Removable Devices --选择usb? --connnect 即可
