笔记：交叉发布
我有一个 LUKS 加密磁盘，可以解锁但不能挂载：
$ sudo cryptsetup luksOpen /dev/sdb1 disk4tb
# enter key
$ sudo mkdir /mnt/disk4tb
$ sudo mount /dev/mapper/disk4tb /mnt/disk4tb
mount: /mnt/disk4tb: wrong fs type, bad option, bad superblock on
/dev/mapper/disk4tb, missing codepage or helper program, or other error.
看看dmesg我看到的：
$ dmesg | tail
[ 1987.080561] F2FS-fs (dm-1): Magic Mismatch, valid(0xf2f52010) - read(0x0)
[ 1987.080573] F2FS-fs (dm-1): Can't find valid F2FS filesystem in 2th superblock
[ 3253.500590] F2FS-fs (dm-1): Magic Mismatch, valid(0xf2f52010) - read(0x0)
[ 3253.500601] F2FS-fs (dm-1): Can't find valid F2FS filesystem in 1th superblock
[ 3253.500934] F2FS-fs (dm-1): Magic Mismatch, valid(0xf2f52010) - read(0x0)
[ 3253.500941] F2FS-fs (dm-1): Can't find valid F2FS filesystem in 2th superblock
[ 3417.866616] F2FS-fs (dm-1): Magic Mismatch, valid(0xf2f52010) - read(0x0)
[ 3417.866626] F2FS-fs (dm-1): Can't find valid F2FS filesystem in 1th superblock
[ 3417.866953] F2FS-fs (dm-1): Magic Mismatch, valid(0xf2f52010) - read(0x0)
[ 3417.866960] F2FS-fs (dm-1): Can't find valid F2FS filesystem in 2th superblock
信息：
$ fdisk -l
Disk /dev/sdb: 3.7 TiB, 4000787030016 bytes, 7814037168 sectors
Disk model: ST4000DM000-2AE1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 899F5BC4-17D0-4904-AEA6-C753E825F6FC
Device Start End Sectors Size Type
/dev/sdb1 2048 7814035455 7814033408 3.7T Linux filesystem