MacBook Late2009にインストールしたelementary osにて
root@MacBook-0ee18cdc:/# df -H
Filesystem Size Used Avail Use% Mounted on
udev 4.0G 0 4.0G 0% /dev
tmpfs 808M 3.5M 804M 1% /run
/dev/mapper/data-root 980G 25G 905G 3% /
tmpfs 4.1G 4.1k 4.1G 1% /dev/shm
tmpfs 5.3M 8.2k 5.3M 1% /run/lock
tmpfs 4.1G 0 4.1G 0% /sys/fs/cgroup
/dev/sda1 276M 12M 264M 5% /boot/efi
tmpfs 808M 7.5M 800M 1% /run/user/1000
root@MacBook-0ee18cdc:/# tune2fs -l /dev/mapper/data-root
tune2fs 1.45.5 (07-Jan-2020)
Filesystem volume name: <none>
Last mounted on: /
Filesystem UUID: 978aeea4-0a2c-4727-9736-
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent 64bit flex_bg sparse_super large_file huge_file dir_nlink extra_isize metadata_csum
Filesystem flags: signed_directory_hash
Default mount options: user_xattr acl
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 60784640
Block count: 243121152
Reserved block count: 12156057
Free blocks: 233063982
Free inodes: 60552478
First block: 0
Block size: 4096
Fragment size: 4096
Group descriptor size: 64
Reserved GDT blocks: 1024
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 8192
Inode blocks per group: 512
Flex block group size: 16
Filesystem created: Sun Aug 15 18:27:41 2021
Last mount time: Thu Dec 23 19:07:36 2021
Last write time: Thu Dec 23 19:07:34 2021
Mount count: 22
Maximum mount count: -1
Last checked: Sun Aug 15 18:27:41 2021
Check interval: 0 (<none>)
Lifetime writes: 53 GB
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 256
Required extra isize: 32
Desired extra isize: 32
Journal inode: 8
First orphan inode: 40897027
Default directory hash: half_md4
Directory Hash Seed: c5917fea-e1e3-45e7-a5c9-
Journal backup: inode blocks
Checksum type: crc32c
Checksum: 0xf776172b
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