Comment 22 for bug 563916

It looks to me as though it would work, but be confusing; you'd have a password prompt some distance up the screen with messages below it, and it wouldn't be obvious that the system was waiting for password entry. (Not to mention that, in Ubuntu's case, the message can be from mountall indicating that you're supposed to press one of certain keys to respond to fsck failures and the like, and plymouth won't pull keystroke triggers until the password entry is finished anyway!)

So, would the best approach be to queue up the messages until display_normal is called, and then display them all at once?