Ecryptfs - mount: mount(2) failed: 没有那个文件或目录

Question

当挂载加密目录时 Ecryptfs 无法在用户的内核密钥环中找到密码短语时，它不会提供有用的错误。

解决方案是显示一个错误，提示“无法执行 eCryptfs 挂载，未找到存储的密码：[-32]”

ecryptfs 报告的错误如下，在系统日志中：

mount.ecryptfs: Failed to perform eCryptfs mount: [-32]

在控制台输出中：

mount: mount(2) failed: No such file or directory
Error mounting eCryptfs: [-1] Operation not permitted

下面是控制台输出：

eric@skylab:~$ sudo ./mount.sh 
Unable to find a list of options to parse, defaulting to interactive mount
Passphrase: 
Select cipher: 
 1) aes: blocksize = 16; min keysize = 16; max keysize = 32
 2) blowfish: blocksize = 8; min keysize = 16; max keysize = 56
 3) des3_ede: blocksize = 8; min keysize = 24; max keysize = 24
 4) twofish: blocksize = 16; min keysize = 16; max keysize = 32
 5) cast6: blocksize = 16; min keysize = 16; max keysize = 32
 6) cast5: blocksize = 8; min keysize = 5; max keysize = 16
Selection [aes]: 
Select key bytes: 
 1) 16
 2) 32
 3) 24
Selection [16]: 
Enable plaintext passthrough (y/n) [n]: 
Enable filename encryption (y/n) [n]: y
Filename Encryption Key (FNEK) Signature [d395309aaad4de06]: be877764c5918621
Unable to find a list of options to parse, defaulting to interactive mount
Attempting to mount with the following options:
  ecryptfs_unlink_sigs
  ecryptfs_fnek_sig=be877764c5918621
  ecryptfs_key_bytes=16
  ecryptfs_cipher=aes
  ecryptfs_sig=d395309aaad4de06
mount: mount(2) failed: No such file or directory
Error mounting eCryptfs: [-1] Operation not permitted
Check your system logs; visit <http://ecryptfs.org/support.html>

Answer 1

使用文件名加密密钥运行 ecryptfs add passphrase 命令（如果您要加密文件名）

ecryptfs-add-passphrase --fnek

Answer 2

当您要挂载旧主目录但实际上挂载当前用户的加密主目录（如果新旧用户名相同）时，这是一个常见的错误。

/home/<user>/.Private是到 的符号链接/home/.ecryptfs/<user>/.Private。在新系统上，它指向您当前的主目录，而不是您可能尝试挂载的旧主目录。

所以要注意挂载.ecryptfs/<user>/.Private，而不仅仅是挂载<user>/.Private。