LinuxでHDDを初期化する

2TB以上の場合はgdiskを使ってGPT(GUID Partition Table) を設定するのがポイント

https://debimate.jp/2019/10/05/gdisk-mkfsコマンドで2tb以上のhddをフォーマットする方法/

ディスクを確認する

code:sh

lsblk -f

sudo fdisk -l

gdiskでパーティション作成

code:sh

sudo gdisk /dev/sdd

code:txt

Command (? for help): n

Partition number (1-128, default 1): 1

First sector (34-7814037133, default = 2048) or {+-}size{KMGTP}:

Last sector (2048-7814037133, default = 7814037133) or {+-}size{KMGTP}:

Current type is 8300 (Linux filesystem)

Hex code or GUID (L to show codes, Enter = 8300):

Changed type of partition to 'Linux filesystem'

Command (? for help): p

Disk /dev/sdd: 7814037167 sectors, 3.6 TiB

Model: Expansion HDD

Sector size (logical/physical): 512/4096 bytes

Disk identifier (GUID): FD315571-08F4-4FD1-866C-570AB295459E

Partition table holds up to 128 entries

Main partition table begins at sector 2 and ends at sector 33

First usable sector is 34, last usable sector is 7814037133

Partitions will be aligned on 2048-sector boundaries

Total free space is 2014 sectors (1007.0 KiB)

Number Start (sector) End (sector) Size Code Name

1 2048 7814037133 3.6 TiB 8300 Linux filesystem

Command (? for help): w

Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING

PARTITIONS!!

Do you want to proceed? (Y/N): Y

OK; writing new GUID partition table (GPT) to /dev/sdd.

The operation has completed successfully.

作られたパーティションを確認

code:sh

lsblk -f

フォーマットする

code:sh

sudo mkfs -t ext4 /dev/sdd1

code:txt

mke2fs 1.46.5 (30-Dec-2021)

Creating filesystem with 976754385 4k blocks and 244195328 inodes

Filesystem UUID: xxxxxxx

Superblock backups stored on blocks:

32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,

4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968,

102400000, 214990848, 512000000, 550731776, 644972544

Allocating group tables: done

Writing inode tables: done

Creating journal (262144 blocks): done

Writing superblocks and filesystem accounting information: done

マウント先の設定

UUIDを確認

code:sh

sudo blkid /dev/sdd1

マウントポイントを作成

code:sh

sudo mkdir -p /mnt/mydisk1

自動マウントの設定

code:sh

sudo vim /etc/fstab

# UUID=xxxx /mnt/mydisk1 auto nosuid,nodev,nofail,x-gvfs-show 0 0

マウントする

code:sh

mount /dev/sdd1

確認

code:sh

lsblk -f

任意: rsyncでまるごとコピーする

code:sh

rsync -aP /mnt/mydisk1/ /mnt/mydisk2/

コピー元はスラッシュが大事

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