[Memo] 加密的ubuntu 不能處理長檔名

可能原因：
Linux filenames are limited to 256 characters in length. When using eCryptfs encrypted filenames, filenames are padded with metadata necessary for decryption. Cleartext filenames which are already very long (> ~200 characters) will not work in eCryptfs.

Reference:
[1] EncryptedPrivateDirectory - Community Ubuntu Documentation
https://help.ubuntu.com/community/EncryptedPrivateDirectory