Revert "Delete 1st preferences file."

This reverts commit fc3ab6d42ab09a7058e39c05b29e8dab3c64e58b.
Revert "Delete 2nd preferences file."

This reverts commit 849c73850e29ab717bfc87dffff4b2cd3e60cb21.
Revert "Revert "Drop the old disable services hook.""

This reverts commit a4f454a5a639f0227b56697da608bf476f6d40ae.
Revert "Temporarily return to sysvinit."

This reverts commit 5074c14b1c0801d79957fd8d4576c1a8485911f6.