I'm trying git-annex for the first time and having some issues.

I have a WD MyBook 2TB Cloud Drive and using OSX Sierra.

I want to create an Annex on one the NAS smb shares and then a Amazon Cloud Drive replica for offsite backup.

When I run git annex init from the mounted share in OSX it fails with the below:

git-annex init
  Detected a filesystem without POSIX fcntl lock support.

  Enabling annex.pidlock.

  Detected a filesystem without fifo support.

  Disabling ssh connection caching.

  Detected a crippled filesystem.

  Disabling core.symlinks.

  Enabling direct mode.
A300 second timeout exceeded while waiting for pid lock file .git/annex/pidlock

Below are the results of git-annex version

git-annex version: 6.20170101
build flags: Assistant Webapp Pairing Testsuite S3(multipartupload)(storageclasses) WebDAV FsEvents ConcurrentOutput TorrentParser MagicMime Feeds Quvi
key/value backends: SHA256E SHA256 SHA512E SHA512 SHA224E SHA224 SHA384E SHA384 SHA3_256E SHA3_256 SHA3_512E SHA3_512 SHA3_224E SHA3_224 SHA3_384E SHA3_384 SKEIN256E SKEIN256 SKEIN512E SKEIN512 SHA1E SHA1 MD5E MD5 WORM URL
remote types: git gcrypt p2p S3 bup directory rsync web bittorrent webdav tahoe glacier ddar hook external
local repository version: 5
supported repository versions: 3 5 6
upgrade supported from repository versions: 0 1 2 3 4 5
operating system: darwin x86_64

Is it possible to have an annex on a SMB share?