CentOS/ec2/ebsな環境でディスクを拡張すると、パーティションが自動で拡張されないため、手動で拡張する必要があります。 fdiskだと以下のようなエラーが表示され、OSの再起動が必要そうだったので、partedで拡張してみました。 WARNING: Re-reading the partition table failed with error 22: Invalid argument. The kernel still uses the old table. The new table will be used at the next reboot. Syncing disks.
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