磁盘在fsck之后消失

Question

我的一个磁盘在停电后坏了。当我试图用fsck来修复我的磁盘时。首先，它输出“恢复日志”和“运行日志anyway？

在我按y之后，fsck输出：

fsck.ext4: Invalid argument while trying to open /dev/sda

当我检查fdisk -l时磁盘就消失了。

我已经尝试过很多次了，在重新启动之后，磁盘将出现，fsck将开始恢复日志，在我按y之后，磁盘就消失了。

对我的处境有什么有用的建议吗？

以下是一些详细的输出：

(anaconda3) ubuntu@ubuntu:/$ sudo fsck /dev/sda
fsck from util-linux 2.27.1
e2fsck 1.42.13 (17-May-2015)
/dev/sda: recovering journal
Superblock needs_recovery flag is clear, but journal has data.
Run journal anyway<y>? yes
fsck.ext4: Invalid argument while trying to open /dev/sda

The superblock could not be read or does not describe a valid ext2/ext3/ext4
filesystem.  If the device is valid and it really contains an ext2/ext3/ext4
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
    e2fsck -b 8193 <device>
 or
    e2fsck -b 32768 <device>

更新:sda的smartctl输出：

smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.15.0-142-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Device Model:     Samsung SSD 870 EVO 2TB
Serial Number:    S5Y3NF0R801831K
LU WWN Device Id: 5 002538 f4180e30c
Firmware Version: SVT01B6Q
User Capacity:    2,000,398,934,016 bytes [2.00 TB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Form Factor:      2.5 inches
Device is:        Not in smartctl database [for details use: -P showall]
ATA Version is:   Unknown(0x09fc), ACS-4 T13/BSR INCITS 529 revision 5
SATA Version is:  SATA >3.2 (0x1ff), 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Tue Oct  4 17:22:25 2022 CST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

Read SMART Data failed: scsi error badly formed scsi parameters

=== START OF READ SMART DATA SECTION ===
SMART Status command failed: scsi error badly formed scsi parameters
SMART overall-health self-assessment test result: UNKNOWN!
SMART Status, Attributes and Thresholds cannot be read.

Read SMART Log Directory failed: scsi error badly formed scsi parameters

Read SMART Error Log failed: scsi error badly formed scsi parameters

Read SMART Self-test Log failed: scsi error badly formed scsi parameters

Selective Self-tests/Logging not supported

Answer 1

几乎可以肯定，/dev/sda上没有直接的文件系统。在你惊慌之前继续读下去。

通常磁盘上有一个分区表，一个或多个分区包含一个文件系统。此命令将显示磁盘上的分区：

parted /dev/sda --对齐最佳单元MiB打印

在我的例子中，我只有一个，在/dev/sda1上。注意尾随号码。

Number  Start    End       Size      Type     File system  Flags
 1      1.00MiB  49152MiB  49151MiB  primary  ext4

如果确实需要这样做，现在可以在该分区上运行fsck，但不需要这样做。

e2fsck /dev/sda1

但是，在运行上述任何操作之前，请更新您的问题，以显示磁盘故障的症状，这些症状会导致您认为您完全需要这样做。对于某些磁盘故障模式，唯一正确的响应是在磁盘完全失败之前复制磁盘。理想情况下，您将能够运行智能诊断，并使用以下输出更新您的问题：

smartctl -a /dev/sda