无法挂载“/dev/sda”

Question

我的服务器在软RAID 1 中有两个 2 TB 硬盘驱动器。我装不上/dev/sda。

输出 parted -l

root@rescue:~# parted -l
Model: ATA HGST HUS724020AL (scsi)
Disk /dev/sda: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:

Number  Start   End     Size    File system     Name     Flags
 1      20.5kB  1049kB  1029kB                  primary  bios_grub
 2      2097kB  1987GB  1987GB                  primary
 3      1987GB  1992GB  5242MB  ext4            primary
 4      1992GB  2000GB  8388MB  linux-swap(v1)  primary


Error: /dev/sdb: unrecognised disk label
Model: ATA HGST HUS724020AL (scsi)
Disk /dev/sdb: 2000GB
Sector size (logical/physical): 512B/512B
Partition Table: unknown
Disk Flags:

输出 mount /dev/sda /mnt

root@rescue:/mnt# mount /dev/sda /mnt
mount: block device /dev/sda is write-protected, mounting read-only
NTFS signature is missing.
Failed to mount '/dev/sda': Invalid argument
The device '/dev/sda' doesn't seem to have a valid NTFS.
Maybe the wrong device is used? Or the whole disk instead of a
partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?

输出 cat /proc/mdstat

root@rescue:~# cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4] [multipath] [faulty]
unused devices: <none>

如何访问我的文件？

Answer 1

不要试图直接挂载设备！你需要挂载它的一个分区。

例如，当你这样做时这是错误的：

mount /dev/sda /mnt

你应该做的是：

mount /dev/sda3 /mnt

系统需要包含在分区中的元数据才能知道如何处理它。如果直接挂载设备，这些元数据会丢失，挂载会失败。