159 lines
2.2 KiB
Markdown
159 lines
2.2 KiB
Markdown
# fdisk磁盘分区
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### Fdisk 命令
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```
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fdisk [必要参数][选择参数]
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```
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必要参数
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- -l 列出素所有分区表
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- -u 与 **-l** 搭配使用，显示分区数目
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选择参数
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- -s<分区编号> 指定分区
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- -v 版本信息
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菜单操作说明
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- m ：显示菜单和帮助信息
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- a ：活动分区标记/引导分区
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- d ：删除分区
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- l ：显示分区类型
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- n ：新建分区
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- p ：显示分区信息
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- q ：退出不保存
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- t ：设置分区号
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- v ：进行分区检查
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- w ：保存修改
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- x ：扩展应用，高级功能
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实例
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```
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# fdisk -l
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Disk /dev/sda: 10.7 GB, 10737418240 bytes
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255 heads, 63 sectors/track, 1305 cylinders
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Units = cylinders of 16065 * 512 = 8225280 bytes
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Device Boot Start End Blocks Id System
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/dev/sda1 * 1 13 104391 83 Linux
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/dev/sda2 14 1305 10377990 8e Linux LVM
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Disk /dev/sdb: 5368 MB, 5368709120 bytes
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255 heads, 63 sectors/track, 652 cylinders
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Units = cylinders of 16065 * 512 = 8225280 bytes
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Disk /dev/sdb doesn't contain a valid partition table
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```
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新建分区
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```
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fdisk /dev/sdb
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输入 n
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按提示操作
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最后输入W 保存
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```
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格式化分区
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```
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mkfs.ext3 /dev/sdb1
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```
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格式化磁盘
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```
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mkfs.ext3 /dev/sdb
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```
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格式化分区为XFS
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使用mkfs.xfs命令。如果已有其他文件系统创建在此分区，必须加上"-f"参数来覆盖它。
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```
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sudo mkfs.xfs -f /dev/sdb1
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```
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挂载 xfs
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```
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sudo mount -t xfs /dev/sdb1 /mnt
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/dev/sdb1 /storage xfs defaults 0 0
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```
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挂载分区
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编辑文件
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```bash
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vim /etc/fstab
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```
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```bash
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/dev/sdb1 /opt ext4 defaults 0 0
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```
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临时挂载
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```bash
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mount /dev/sdb1 /Public2
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```
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### lsblk 命令
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查看硬盘信息
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```
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lsblk
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```
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```
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lsblk -f
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```
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```
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[root@worker ~]# lsblk
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NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
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sda 8:0 0 30G 0 disk
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├─sda1 8:1 0 200M 0 part /boot/efi
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├─sda2 8:2 0 1G 0 part /boot
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└─sda3 8:3 0 28.8G 0 part
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├─centos-root 253:0 0 27G 0 lvm /
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└─centos-swap 253:1 0 1.8G 0 lvm [SWAP]
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sdb 8:16 0 1T 0 disk
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└─sdb1 8:17 0 1024G 0 part /opt
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sr0 11:0 1 1024M 0 rom
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```
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