在对 LUKS 驱动器进行映像时，我意外地在它未加密时对其进行了映像（仅对 sdx1 进行了映像，而不是对整个驱动器进行了映像，sdx2 是启动）。现在它无法安装。我尝试了几乎所有方法来尝试安装它，但都没有成功。它仍然可以通过磁盘工具或 luksOpen 命令解锁和锁定，这可以挽救吗？
我尝试过将映像复制到单独的驱动器、losetup、挂载、挂载映像等。解锁后，它会设置一个循环，但实际上不会挂载任何东西。
在磁盘实用程序中解锁后：
sudo mount -t ext4 diskimg.img /mnt
[sudo] password for user:
mount: /mnt: /dev/loop5 already mounted or mount point busy.
sudo mount -t ext4 diskimg.img /media
mount: /media: wrong fs type, bad option, bad superblock on
/dev/loop32, missing codepage or helper program, or other error.
在磁盘工具中：
Device /dev/mapper/luks-eff2a9f0-4edb-460c-908a-4a3384b0246f
mount: /mnt: wrong fs type, bad option, bad superblock on /dev/mapper/luks-eff2a9f0-4edb-460c-908a-4a3384b0246f, missing codepage or helper program, or other error.
我尝试过的：
user@user:~/Documents$ mke2fs -n /dev/sdb1
mke2fs 1.45.7 (28-Jan-2021)
/dev/sdb1 contains a crypto_LUKS file system
Proceed anyway? (y,N) y
Creating filesystem with 30629632 4k blocks and 7659520 inodes
Filesystem UUID: e8c13120-2388-4147-a6e8-7591dee60d8e
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
4096000, 7962624, 11239424, 20480000, 23887872
user@user:~/Documents$ sudo fsck -t ext4 /dev/sdb1
fsck from util-linux 2.36.1
user@user:~/Documents$ e2fsck -b 32768 /dev/sdb1
e2fsck 1.45.7 (28-Jan-2021)
e2fsck: Bad magic number in super-block while trying to open /dev/sdb1
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>
/dev/sdb1 contains a crypto_LUKS file system
有什么方法可以保存图像/设备中的数据吗？
我也尝试在解锁时在设备或 LVM 层上使用相同的方法：
e2fsck -b 163840 /dev/mapper/luks-eff2a9f0-4edb-460c-908a- 4a3384b0246f
e2fsck 1.45.7 (28-Jan-2021)
e2fsck: Bad magic number in super-block while trying to open /dev/mapper/luks-eff2a9f0-4edb-460c-908a-4a3384b0246f
答案1
您需要通过键入不带参数的 mount 来检查错误。因此，您可以检查 /mount 是否可用，以及/或者 /dev/loop5 是否已安装