KERNEL ext4 のオプション機能を有効にする
File systems --->
[*] Ext4 POSIX Access Control Lists Search for <code>CONFIG_CONFIG_EXT4_FS_POSIX_ACL</code> to find this item.
[*] Ext4 Security Labels Search for <code>CONFIG_CONFIG_EXT4_FS_SECURITY</code> to find this item.
[ ] EXT4 debugging support
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