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From: deborah@gallifrey.microunity.com (Deborah Gronke Bennett)
Subject: Re: Converting Old Passwd file to New?
In-Reply-To: dhawk@netcom.com's message of Mon, 23 Oct 1995 21:26:29 GMT
Message-ID: <DEBORAH.95Oct30164140@gallifrey.microunity.com>
Sender: usenet@microunity.com (news id)
Organization: MicroUnity Systems Engineering, Inc.
References: <dhawkDGx7K5.5Bq@netcom.com>
Date: Tue, 31 Oct 1995 00:41:40 GMT
Lines: 49
In article <dhawkDGx7K5.5Bq@netcom.com> dhawk@netcom.com (David H) writes:
>
> I've set up a new FreeBSD machine and need to move a group of
> people over to it. The passwd file on the old machine (linux)
> is old-style of
> <userid>:<enc_passwd>:<userno>:<grp_no:>: [and so forth]
>
> How to I convert that to FreeBSD since I don't know anyone's password
> (except mine)?
I have exactly this same problem - I have 5 FreeBSD machines on a
network where /etc/passwd is rdist'd every night from a sun network.
Here's what you have to do:
- at install time, you must install the DES software. I hope you're inside
the US. You must get the install package from the ftp site - it is not
on the install CD.
- After installation, process the existing passwd file using a simple
awk script like this one:
BEGIN { FS = ":"}
{ print $1 ":" $2 ":" $3 ":" $4 "::0:0:" $5 ":" $6 ":" $7 }
Redirect the output of the awk to something like "master.passwd.new"
Now run pwd_mkdb on that file. This will rebuild the passwd database.
If you run pwd_mkdb with the -p option, it will also generate
an /etc/passwd file which looks like the ones on your other machines.
You should now have passwords for everyone.
Since mucking with passwd files this way is error-intolerant, be sure
to make a copy of /etc/master.passwd before you start. If after you
run pwd_mkdb you can't go to one of the other virtual consoles and
log in, you've messed something up. Quick, run pwd_mkdb on the old
/etc/master.passwd so you at least get your post-installation root
login back so you have permissions to fix the problem. Whatever you
do, don't log off as root until you know you can log back on again.
(She says from recent experience)
Good luck!
--
----------
Deborah Gronke Bennett (WD5HJH) kernel and device drivers engineer
deborah@microunity.com (408)-734-8100
MicroUnity Systems Eng., 255 Caspian Drive, Sunnyvale, CA 94089-1015 USA
I'm still looking to buy source code for the cscope program or
the C programmer's toolchest containing it.
UNIX is a trademark of whoever bought it this week . . .