ストレージが認識されているか確認します．
# fdisk -l Disk /dev/vda: 50 GiB, 53687091200 bytes, 104857600 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 Disklabel type: gpt Disk identifier: **************************** Device Start End Sectors Size Type /dev/vda1 2048 6143 4096 2M BIOS boot /dev/vda2 6144 104855551 104849408 50G EFI System Disk /dev/vdb: 500 GiB, 536870912000 bytes, 1048576000 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
パーティションを作成します
]# fdisk /dev/vdb
Welcome to fdisk (util-linux 2.27.1).
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.
Created a new DOS disklabel with disk identifier 0x13472f1f.
Command (m for help): m
Help:
DOS (MBR)
a toggle a bootable flag
b edit nested BSD disklabel
c toggle the dos compatibility flag
Generic
d delete a partition
F list free unpartitioned space
l list known partition types
n add a new partition
p print the partition table
t change a partition type
v verify the partition table
i print information about a partition
Misc
m print this menu
u change display/entry units
x extra functionality (experts only)
Script
I load disk layout from sfdisk script file
O dump disk layout to sfdisk script file
Save & Exit
w write table to disk and exit
q quit without saving changes
Create a new label
g create a new empty GPT partition table
G create a new empty SGI (IRIX) partition table
o create a new empty DOS partition table
s create a new empty Sun partition table
Command (m for help): n
Partition type
p primary (0 primary, 0 extended, 4 free)
e extended (container for logical partitions)
Select (default p): p
Partition number (1-4, default 1): 1
First sector (2048-1048575999, default 2048):
Last sector, +sectors or +size{K,M,G,T,P} (2048-1048575999, default 1048575999):
Created a new partition 1 of type 'Linux' and of size 500 GiB.
Command (m for help): p
Disk /dev/vdb: 500 GiB, 536870912000 bytes, 1048576000 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
Disklabel type: dos
Disk identifier: 0x13472f1f
Device Boot Start End Sectors Size Id Type
/dev/vdb1 2048 1048575999 1048573952 500G 83 Linux
Command (m for help): w
The partition table has been altered.
Calling ioctl() to re-read partition table.
Syncing disks.
確認します
# fdisk -l Disk /dev/vda: 50 GiB, 53687091200 bytes, 104857600 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 Disklabel type: gpt Disk identifier: BD6231ED-965C-4F26-95BD-8CDC2AC71AF3 Device Start End Sectors Size Type /dev/vda1 2048 6143 4096 2M BIOS boot /dev/vda2 6144 104855551 104849408 50G EFI System Disk /dev/vdb: 500 GiB, 536870912000 bytes, 1048576000 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 Disklabel type: dos Disk identifier: 0x13472f1f Device Boot Start End Sectors Size Id Type /dev/vdb1 2048 1048575999 1048573952 500G 83 Linux
ファイルシステムを作成
# mkfs -t ext4 /dev/vdb1
mke2fs 1.42.13 (17-May-2015)
Creating filesystem with 131071744 4k blocks and 32768000 inodes
Filesystem UUID: ***************
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,
102400000
Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done
マウントしまーす
# df -h Filesystem Size Used Avail Use% Mounted on udev 2.0G 0 2.0G 0% /dev tmpfs 396M 8.3M 387M 3% /run /dev/vda2 50G 6.4G 41G 14% / tmpfs 2.0G 0 2.0G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup tmpfs 396M 0 396M 0% /run/user/0
# mkdir /test # mount /dev/vdb1 /test # df -h Filesystem Size Used Avail Use% Mounted on udev 2.0G 0 2.0G 0% /dev tmpfs 396M 8.3M 387M 3% /run /dev/vda2 50G 6.4G 41G 14% / tmpfs 2.0G 0 2.0G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup tmpfs 396M 0 396M 0% /run/user/0 /dev/vdb1 493G 70M 467G 1% /test
自動マウントしまーす
/etc/fstabにマウント設定を記述しまーす． デバイス名で指定することもできますが，OS起動時にデバイス名が変わる可能性もあるのでUUIDで指定する方がいい． UUIDはblkidコマンドで確認できる．
# blkid /dev/vdb1 /dev/vdb1: UUID="****-*******-**-*****-******" TYPE="ext4" PARTUUID="*******-**" # cat /etc/fstab UUID=<UUID> /test ext4 defaults 1 2
おわり
