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在內網主機CentOS 6.5新增一個2T硬盤,先關機斷電再銜接硬盤數據線和電源線.
查看當前磁盤裝備信息:
[root@linuxidc ~]# fdisk -l
WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted.
Disk /dev/sdb: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 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: 0x00000000
? Device Boot? ? ? Start? ? ? ? End? ? ? Blocks? Id? System
/dev/sdb1? ? ? ? ? ? ? 1? ? ? 19458? 156290903+? ee? GPT
Disk /dev/sda: 2000.4 GB, 2000398934016 bytes
255 heads, 63 sectors/track, 243201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x00000000
格局化/dev/sda
[root@linuxidc ~]# mkfs.ext4 /dev/sda
mke2fs 1.41.12 (17-May-2010)
/dev/sda is entire device, not just one partition!
Proceed anyway? (y,n) y
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=1 blocks, Stripe width=0 blocks
122101760 inodes, 488378646 blocks
24418932 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
14905 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, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
? ?102400000, 214990848
Writing inode tables: done? ? ? ? ? ? ? ? ? ? ? ? ? ?
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
This filesystem will be automatically checked every 26 mounts or
180 days, whichever comes first.? Use tune2fs -c or -i to override.
新建目次并掛載
[root@linuxidc ~]# mkdir /wdc
[root@linuxidc ~]# mount /dev/sda /wdc
[root@linuxidc ~]# df -h
Filesystem? ? ? Size? Used Avail Use% Mounted on
/dev/sdb4? ? ? ? 50G? 8.2G? 39G? 18% /
tmpfs? ? ? ? ? 1.9G? ? 0? 1.9G? 0% /dev/shm
/dev/sdb2? ? ? 194M? 47M? 138M? 26% /boot
/dev/sdb1? ? ? 799M? 264K? 799M? 1% /boot/efi
/dev/sdb3? ? ? ? 97G? 4.1G? 88G? 5% /data
/dev/sda? ? ? ? 1.8T? 196M? 1.7T? 1% /wdc
設置開機時自動掛載:
查看磁盤UUID信息
[root@linuxidc /]# blkid
/dev/sdb1: UUID="2824-9F12" TYPE="vfat"
/dev/sdb2: UUID="95a58d28-583f-4bd2-a1b8-5217603ab169" TYPE="ext4"
/dev/sdb3: UUID="1576184b-a5fd-436e-9f0a-f1d017976a9b" TYPE="ext4"
/dev/sdb4: UUID="6a85e17b-aba8-4547-a915-013dec8665f5" TYPE="ext4"
/dev/sda: UUID="d03dad1a-797d-47a5-92c8-5ec5836d35e2" TYPE="ext4"
[root@linuxidc /]# vim /etc/fstab
添加以下信息
UUID=d03dad1a-797d-47a5-92c8-5ec5836d35e2? /wdc? ext4? ? defaults 0 0
編纂后的信息如下:
#
# /etc/fstab
# Created by anaconda on Mon Oct 17 12:29:32 2016
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#
UUID=6a85e17b-aba8-4547-a915-013dec8665f5 /? ? ? ? ? ? ? ? ? ? ? ext4? ? defaults? ? ? ? 1 1
UUID=95a58d28-583f-4bd2-a1b8-5217603ab169 /boot? ? ? ? ? ? ? ? ? ext4? ? defaults? ? ? ? 1 2
UUID=2824-9F12? ? ? ? ? /boot/efi? ? ? ? ? ? ? vfat? ? umask=0077,shortname=winnt 0 0
UUID=1576184b-a5fd-436e-9f0a-f1d017976a9b /data? ? ? ? ? ? ? ? ? ext4? ? defaults? ? ? ? 1 2
UUID=d03dad1a-797d-47a5-92c8-5ec5836d35e2? /wdc? ? ? ? ? ? ? ? ? ext4? ? defaults? ? ? ? 0 0
tmpfs? ? ? ? ? ? ? ? ? /dev/shm? ? ? ? ? ? ? ? tmpfs? defaults? ? ? ? 0 0
devpts? ? ? ? ? ? ? ? ? /dev/pts? ? ? ? ? ? ? ? devpts? gid=5,mode=620? 0 0
sysfs? ? ? ? ? ? ? ? ? /sys? ? ? ? ? ? ? ? ? ? sysfs? defaults? ? ? ? 0 0
proc? ? ? ? ? ? ? ? ? ? /proc? ? ? ? ? ? ? ? ? proc? ? defaults? ? ? ? 0 0
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