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Date: Mon, 23 Jun 2003 23:21:55 -0700
From: Terry Lambert <tlambert2@mindspring.com>
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To: David Syphers <dsyphers@oddjob.uchicago.edu>
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Subject: Re: transferring data (after losing all non-root logins)
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David Syphers wrote:
> I recently forgot my root password, rebooted single-user and changed it,
> and immediately afterwards the computer denied the existence of any
> non-root users (home directories still there for those that had them,
> they still have login shells, etc.). This was the only change made to
> the system. This is a -current system from late April that was in storage
> for a while.

There was a change to the database file format that dealt with
byte order independence.

You can probably use the older pwd_mkdb and recover all your
accounts by reverting the "upgrade" from using the new utility.
See also the CVS log for the passwd program, and the discussion
on the -current mailing list (I believe the change was PHK's
idea; I didn't participate in the discussion).

-- Terry