間違った/dev/nvme0...
名前を使用していました:
$ sudo tune2fs -l /dev/nvme0n1
tune2fs 1.42.13 (17-May-2015)
tune2fs: Bad magic number in super-block while trying to open /dev/nvme0n1
Couldn't find valid filesystem superblock.
正しい形式は次のとおりです。
$ sudo tune2fs -l /dev/nvme0n1p6
tune2fs 1.42.13 (17-May-2015)
Filesystem volume name: New_Ubuntu_16.04
Last mounted on: /
Filesystem UUID: b40b3925-70ef-447f-923e-1b05467c00e7
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: 2953920
Block count: 11829504
Reserved block count: 534012
Free blocks: 6883701
Free inodes: 2277641
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 1021
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 8160
Inode blocks per group: 510
Flex block group size: 16
Filesystem created: Thu Aug 2 20:14:59 2018
Last mount time: Thu Apr 4 21:05:29 2019
Last write time: Thu Feb 14 21:36:27 2019
Mount count: 377
Maximum mount count: -1
Last checked: Thu Aug 2 20:14:59 2018
Check interval: 0 (<none>)
Lifetime writes: 4920 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: 1308352
Default directory hash: half_md4
Directory Hash Seed: a179d56c-6c68-468c-8070-ffa5bb7cd973
Journal backup: inode blocks
NVMe SSDの寿命に関する限り:
$ sudo nvme smart-log /dev/nvme0
Smart Log for NVME device:nvme0 namespace-id:ffffffff
critical_warning : 0
temperature : 38 C
available_spare : 100%
available_spare_threshold : 10%
percentage_used : 0%
data_units_read : 22,351,778
data_units_written : 14,667,833
host_read_commands : 379,349,109
host_write_commands : 127,359,479
controller_busy_time : 952
power_cycles : 1,925
power_on_hours : 1,016
unsafe_shutdowns : 113
media_errors : 0
num_err_log_entries : 598
Warning Temperature Time : 0
Critical Composite Temperature Time : 0
Temperature Sensor 1 : 38 C
Temperature Sensor 2 : 49 C
Temperature Sensor 3 : 0 C
Temperature Sensor 4 : 0 C
Temperature Sensor 5 : 0 C
Temperature Sensor 6 : 0 C
Temperature Sensor 7 : 0 C
Temperature Sensor 8 : 0 C
ここで重要なのは:
percentage_used : 0%
18か月の使用後、SSDの使用率は0%です。3年間使用してから1%に達した場合、SSDは300年間持続することを知っています。
明らかに、この回答は、他のコメントに返信するためのコメントセクションには収まりません。