CentOS 7 mount new harddisk
list disks
[root@yzb-centos-08 chenyang]# fdisk -l
Disk /dev/vda: 32.2 GB, 32212254720 bytes, 62914560 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 label type: dos
Disk identifier: 0x0009680e
Device Boot Start End Blocks Id System
/dev/vda1 2048 4194303 2096128 82 Linux swap / Solaris
/dev/vda2 * 4194304 56623103 26214400 83 Linux
Disk /dev/vdb: 107.4 GB, 107374182400 bytes, 209715200 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
Use fdisk tool
[root@yzb-centos-08 chenyang]# fdisk /dev/vdb
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Device does not contain a recognized partition table
Building a new DOS disklabel with disk identifier 0xb1da6155.
print partitions
Command (m for help): p
Disk /dev/vdb: 107.4 GB, 107374182400 bytes, 209715200 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 label type: dos
Disk identifier: 0xb1da6155
Device Boot Start End Blocks Id System
create partitions
Command (m for help): n
Partition type:
p primary (0 primary, 0 extended, 4 free)
e extended
Select (default p): p
Partition number (1-4, default 1): 1
First sector (2048-209715199, default 2048):
Using default value 2048
Last sector, +sectors or +size{K,M,G} (2048-209715199, default 209715199):
Using default value 209715199
Partition 1 of type Linux and of size 100 GiB is set
write to disk
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
Syncing disks.
check new partitions
[root@yzb-centos-08 chenyang]# fdisk -l /dev/vdb
Disk /dev/vdb: 107.4 GB, 107374182400 bytes, 209715200 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 label type: dos
Disk identifier: 0xb1da6155
Device Boot Start End Blocks Id System
/dev/vdb1 2048 209715199 104856576 83 Linux
[root@yzb-centos-08 chenyang]# mkfs
mkfs mkfs.btrfs mkfs.cramfs mkfs.ext2 mkfs.ext3 mkfs.ext4 mkfs.minix mkfs.xfs
formatting disk
[root@yzb-centos-08 chenyang]# mkfs.xfs /dev/vdb1
meta-data=/dev/vdb1 isize=256 agcount=4, agsize=6553536 blks
= sectsz=512 attr=2, projid32bit=1
= crc=0 finobt=0
data = bsize=4096 blocks=26214144, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=0
log =internal log bsize=4096 blocks=12799, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
check partition filesystem type
[root@yzb-centos-08 chenyang]# df -T
Filesystem Type 1K-blocks Used Available Use% Mounted on
/dev/vda2 ext4 25671908 1908864 22435940 8% /
devtmpfs devtmpfs 3996328 0 3996328 0% /dev
tmpfs tmpfs 4005452 0 4005452 0% /dev/shm
tmpfs tmpfs 4005452 16720 3988732 1% /run
tmpfs tmpfs 4005452 0 4005452 0% /sys/fs/cgroup
tmpfs tmpfs 801092 0 801092 0% /run/user/0
tmpfs tmpfs 801092 0 801092 0% /run/user/1000
[root@yzb-centos-08 chenyang]# df -hT
Filesystem Type Size Used Avail Use% Mounted on
/dev/vda2 ext4 25G 1.9G 22G 8% /
devtmpfs devtmpfs 3.9G 0 3.9G 0% /dev
tmpfs tmpfs 3.9G 0 3.9G 0% /dev/shm
tmpfs tmpfs 3.9G 17M 3.9G 1% /run
tmpfs tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup
tmpfs tmpfs 783M 0 783M 0% /run/user/0
tmpfs tmpfs 783M 0 783M 0% /run/user/1000