Linux空硬盘从分区到挂载
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Linux空硬盘从分区到挂载
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(1).臨時(shí)掛載: [root@CentOS6 桌面]# fdisk /dev/sdb
Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel
Building a new DOS disklabel with disk identifier 0x4ef8fb05.
Changes will remain in memory only, until you decide to write them.
After that, of course, the previous content won't be recoverable.Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)WARNING: DOS-compatible mode is deprecated. It's strongly recommended toswitch off the mode (command 'c') and change display units tosectors (command 'u').Command (m for help): n //新建分區(qū)
Command actione extendedp primary partition (1-4)
p //創(chuàng)建主分區(qū)
Partition number (1-4): 1 //分區(qū)號(hào)
First cylinder (1-2610, default 1): //起始位置,一般默認(rèn)即可
Using default value 1
Last cylinder, +cylinders or +size{K,M,G} (1-2610, default 2610): //給定的大小,不是默認(rèn)一定要有加號(hào)'+'
Using default value 2610Command (m for help): w //保存退出
The partition table has been altered!Calling ioctl() to re-read partition table.
Syncing disks.
[root@CentOS6 桌面]# mkdir /newpar //創(chuàng)建掛載的文件夾
//ext4格式化,xfs格式化就是mkfs.xfs /dev/sdb1
[root@CentOS6 桌面]# mkfs.ext4 /dev/sdb1 //如果已經(jīng)存在文件系統(tǒng),需要使用-f選項(xiàng)對(duì)分區(qū)強(qiáng)制格式化
mke2fs 1.41.12 (17-May-2010)
文件系統(tǒng)標(biāo)簽=
操作系統(tǒng):Linux
塊大小=4096 (log=2)
分塊大小=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
1310720 inodes, 5241198 blocks
262059 blocks (5.00%) reserved for the super user
第一個(gè)數(shù)據(jù)塊=0
Maximum filesystem blocks=4294967296
160 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000正在寫入inode表: 完成
Creating journal (32768 blocks): 完成
Writing superblocks and filesystem accounting information: 完成This filesystem will be automatically checked every 22 mounts or
180 days, whichever comes first. Use tune2fs -c or -i to override.
[root@CentOS6 桌面]# mount /dev/sdb1 /newpar //將分區(qū)掛載
[root@CentOS6 桌面]# df -h //查看掛載情況
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_centos6-lv_root50G 3.7G 43G 8% /
tmpfs 932M 228K 932M 1% /dev/shm
/dev/sda1 477M 40M 412M 9% /boot
/dev/mapper/vg_centos6-lv_home45G 52M 43G 1% /home
/dev/sdb1 20G 44M 19G 1% /newpar
?注意:CentOS7默認(rèn)文件系統(tǒng)是xfs,CentOS6默認(rèn)文件系統(tǒng)是ext4
(2).永久掛載
永久掛載方法一:使用分區(qū)名掛載
使用命令'vim /etc/fstab'進(jìn)入文件增加一行
/dev/sdb1 /newpar ext4 defaults 0 0? 永久掛載方法二:使用UUID掛載(建議使用UUID)
[root@xuexi ~]# blkid /dev/sda1: UUID="0516ad0c-a018-41a2-a384-f607ed06db40" TYPE="xfs" /dev/sda2: UUID="81986899-73d9-4029-b5bb-a30e652d766c" TYPE="swap" /dev/sda3: UUID="526be8cd-59d8-4ffa-bb0b-9ac8ad2a02af" TYPE="xfs" /dev/sdb1: UUID="da309857-1362-4ff8-8219-ddc1d177755f" TYPE="xfs" /dev/sr0: UUID="2018-05-03-20-55-23-00" LABEL="CentOS 7 x86_64" TYPE="iso9660" PTTYPE="dos" [root@xuexi ~]# echo "UUID=da309857-1362-4ff8-8219-ddc1d177755f /sdb1 xfs defaults 0 0" >> /etc/fstab在重啟系統(tǒng)前可以先使用命令'mount -a'檢測(cè)是否可以正常運(yùn)行,如果沒有報(bào)錯(cuò)可以重啟系統(tǒng)。
另外ext4可以根據(jù)實(shí)際使用更換,具體如下:
光盤或光盤鏡像iso9660 DOS fat16文件系統(tǒng)msdos Windows 9x fat32文件系統(tǒng)vfat Windows NT ntfs文件系統(tǒng)ntfs Mount Windows文件網(wǎng)絡(luò)共享smbfs UNIX(LINUX)文件網(wǎng)絡(luò)共享nfs說明:
| /dev/sdb1 | /sdb1 | xfs | defaults | 0 | 0 |
| 要掛載的分區(qū)設(shè)備 | 掛載點(diǎn) | 文件系統(tǒng)類型 | 掛載選項(xiàng) | 是否備份 | 是否檢測(cè) |
defaults對(duì)應(yīng)的掛載選項(xiàng)請(qǐng)看Linux命令之mount中(1)常用選項(xiàng)中的-o option選項(xiàng)。可以使用英文逗號(hào)選擇多個(gè)選項(xiàng)(option,option,option,...)
轉(zhuǎn)載于:https://www.cnblogs.com/diantong/p/8855683.html
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