Hello, Programmist11180!
From comment #8 to #23 we talk about unrelease udisks2 version from git-repository.
If you are on Ubuntu (or Mint, or other Debian/Ubuntu based distro) you can follow my instruction (in comment #10) to compile udisks2 from latest sources and test "udisksctl power-off -b /dev/sde" again.
I have compiled deb-package for 14.04 i686 - I can post it here if you have any problems with compilation.
Hello, Programmist11180!
From comment #8 to #23 we talk about unrelease udisks2 version from git-repository.
If you are on Ubuntu (or Mint, or other Debian/Ubuntu based distro) you can follow my instruction (in comment #10) to compile udisks2 from latest sources and test "udisksctl power-off -b /dev/sde" again.
I have compiled deb-package for 14.04 i686 - I can post it here if you have any problems with compilation.