centos下fdisk和parted磁盤分區實戰
阿新 • • 發佈:2019-02-27
cto logic probe 文件 fstab strong logical calling art 需求:添加一塊100M的硬盤並把它永久掛載到/data01上,寫出詳細的操作步驟
方法一:
[root@localhost ~]# fdisk -l |grep ‘sdb‘ Disk /dev/sdb: 106 MB, 106954752 bytes [root@localhost ~]# fdisk -cu /dev/sdb Command (m for help): m Command action …… d delete a partition l list known partition types m print this menu n add a new partition p print the partition table q quit without saving changes w write table to disk and exit Command (m for help): n Command action e extended p primary partition (1-4) p Partition number (1-4): 1 First sector (2048-208895, default 2048): Using default value 2048 Last sector, +sectors or +size{K,M,G} (2048-208895, default 208895): Using default value 208895 Command (m for help): p Disk /dev/sdb: 106 MB, 106954752 bytes 64 heads, 32 sectors/track, 102 cylinders, total 208896 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x65338ab6 Device Boot Start End Blocks Id System /dev/sdb1 2048 208895 103424 83 Linux Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks. #通知系統/dev/sdb硬盤的磁盤分區表變化了 [root@localhost ~]# partprobe /dev/sdb [root@localhost ~]# mkfs.ext4 /dev/sdb1 #關閉磁盤分區的自動檢查 [root@localhost ~]# tune2fs -c 0 -i 0 /dev/sdb1 註釋: -c 0 count 關閉每掛載多少次進行磁盤檢查的功能 -i 0 interval 關閉每個180天進行磁盤檢查功能 [root@localhost ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 19G 5.0G 14G 27% / tmpfs 120M 0 120M 0% /dev/shm /dev/sda1 190M 35M 145M 20% /boot [root@localhost ~]# mkdir /data01 [root@localhost ~]# mount /dev/sdb1 /data01 [root@localhost ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 19G 5.0G 14G 27% / tmpfs 120M 0 120M 0% /dev/shm /dev/sda1 190M 35M 145M 20% /boot /dev/sdb1 94M 1.6M 88M 2% /data01 [root@localhost ~]# vim /etc/fstab .... /dev/sdb1 /data01 ext4 defaults 0 0 第一個0表示:關閉自動備份功能 第二個0表示:關閉磁盤自動檢查功能
方法二:
使用parted 工具分區(可用於大於2T的數據盤分區),常用參數說明:
p[rint] 顯示磁盤分區表信息
mklabel 創建磁盤分區表,可用的磁盤分區表為:gpt、msdos(mbr)
mkpart 創建分區
rm 刪除分區
q 退出不保存
parted /dev/sdb mklabel gpt y parted /dev/sdb mkpart primary 0 -1 Ignore(全部容量默認給一個分區) parted /dev/sdb p partprobe /dev/sdb mkfs.ext4 /dev/sdb1 tune2fs -c 0 -i 0 /dev/sdb1 /bin/mount /dev/sdb1 /data01/ df -h echo "/bin/mount /dev/sdb1 /data01/" >>/etc/rc.local
步驟總結:
1.分區
2.通知系統/dev/sdb硬盤的磁盤分區表變化了格式化創建文件系統
3.格式化創建文件系統
4.關閉磁盤分區的自動檢查
5.進行磁盤分區掛載
6.進行永久掛載(開機自動掛載)
centos下fdisk和parted磁盤分區實戰