TF
tune2fs -l на блочное устройство покажи
Filesystem volume name: <none>
Last mounted on: /
Filesystem UUID: 74b7f9e8-7a1a-4f81-a673-c42c6c33e592
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags: signed_directory_hash
Default mount options: user_xattr acl
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 5218304
Block count: 20849152
Reserved block count: 1042457
Free blocks: 11361646
Free inodes: 20
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 1019
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 8192
Inode blocks per group: 512
Flex block group size: 16
Filesystem created: Fri Feb 1 12:16:16 2019
Last mount time: Mon Jun 3 05:45:19 2019
Last write time: Mon Jun 3 05:45:19 2019
Mount count: 8
Maximum mount count: -1
Last checked: Fri Feb 1 12:16:16 2019
Check interval: 0 (<none>)
Lifetime writes: 690 GB
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 256
Required extra isize: 28
Desired extra isize: 28
Journal inode: 8
First orphan inode: 2097408
Default directory hash: half_md4
Directory Hash Seed: 3333e5a5-9a86-4e94-8376-45db19a19ff1
Journal backup: inode blocks