【1】パーティションの拡張
1.cfdiskを実行する
# cfdisk /dev/sda
2.拡張したいパーティションを選択し、[Resize]を選択する
Disk: /dev/sda
Size: 150 GiB, 161061273600 bytes, 314572800 sectors
Label: gpt, identifier: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
Device Start End Sectors Size Type
/dev/sda1 2048 4095 2048 1M BIOS boot
>> /dev/sda2 4096 209713151 209709056 100G Linux filesystem
Free space 209713152 314572766 104859615 50G
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xPartition UUID: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX x
xPartition type: BIOS boot (XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX) x
xFilesystem UUID: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX x
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[ Delete ] [ Resize ] [ Quit ] [ Type ] [ Help ] [ Write ] [ Dump ]
↑
└ これを選択
3.拡張後のサイズを指定する。拡張可能な最大サイズで良ければ、そのままEnterキーを押下する
New size: 150G
4.指定されたパーティションの容量が拡張されたことを確認し、[Write]を選択する
Disk: /dev/sda
Size: 150 GiB, 161061273600 bytes, 314572800 sectors
Label: gpt, identifier: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
Device Start End Sectors Size Type
/dev/sda1 2048 4095 2048 1M BIOS boot
>> /dev/sda2 4096 314572766 314568671 150G Linux filesystem
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xPartition UUID: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX x
xPartition type: BIOS boot (XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX) x
xFilesystem UUID: XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX x
mqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqj
[ Delete ] [ Resize ] [ Quit ] [ Type ] [ Help ] [ Write ] [ Dump ]
↑
└ これを選択
5.パーティションテーブルをディスクに書いて良いか聞かれるので、「yes」と入力する
Are you sure you want to write the partition table to disk? yes
6.[Quit]を選択する
[ Delete ] [ Resize ] [ Quit ] [ Type ] [ Help ] [ Write ] [ Dump ]
↑
└ これを選択
【2】ファイルシステムに対して、拡張後の容量を認識させる
ext4パーティションを拡張する場合
resize2fs <ブロックデバイス(パーティション)名>
を実行する。
# resize2fs /dev/sda2
resize2fs 1.45.5 (07-Jan-2020)
Filesystem at /dev/sda2 is mounted on /; on-line resizing required
old_desc_blocks = 13, new_desc_blocks = 19
The filesystem on /dev/sda2 is now 39321083 (4k) blocks long.
xfsパーティションを拡張する場合
xfs_growfs <ブロックデバイス(パーティション)名>
を実行する。