Date: Thu, 6 May 1999 09:47:40 -0400 From: Robert Beer <r-beer@onu.edu> To: Zheng Bokui <bokui@sin.photronics.com>, "freebsd-questions@FreeBSD.ORG" <freebsd-questions@FreeBSD.ORG> Subject: Re: Transfer user accounts Message-ID: <l03130323b35748ea2aee@[140.228.15.35]> In-Reply-To: <37320778.8C56DB90@sin.photronics.com>
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At 4:19 PM -0400 5/6/1999, Zheng Bokui wrote:
>Hi Gurus,
>I'd like to move hundreds of user accounts from an old SunOS 4.1.3
>machine to my FreeBSD 3.1-stable PC. How can I do that? I'd like to keep
>all the old passwords so that the users don't need to key-in again.
OK, here is how I would do this. Note that your mileage may vary. On the=
FreeBSD box insure that your are using DES crypt instead of MD5. You can=
look at the links (example from 2.2.8) in /usr/lib:
lrwxrwxrwx 1 root bin 13 Dec 31 13:07 /usr/lib/libcrypt.a -> libdescry=
pt.a
lrwxrwxrwx 1 root bin 18 Dec 31 13:07 /usr/lib/libcrypt.so.2.0 -> libd=
escr
ypt.so.2.0
lrwxrwxrwx 1 root bin 15 Dec 31 13:07 /usr/lib/libcrypt_p.a -> libdesc=
rypt
_p.a
Then you need to move a copy of the Sun password file to a scratch area on=
the FreeBSD box. Edit the password file to remove duplicate accounts like=
root (!) and other system accounts. Then feed this file to the awk script=
listed in the passwd (5) manpage:
BEGIN { FS =3D ":"}
{ print $1 ":" $2 ":" $3 ":" $4 "::0:0:" $5 ":" $6 ":" $7 }
At this point as root you might want to create a copy of /etc/master.passwd=
in case you experience a problem. This is your insurance policy in case of=
disaster. Do have a couple of root logins going while you do this.
Now append the above editted file to /etc/master.passwd and run:
pwd_mkdb -c /etc/master.passwd
This will check for syntax errors. If there are no errors then run:
pwd_mkdb -p /etc/master.passwd
This will create the hashed password files. Now you need to create the home=
directories of the users. I would use a shell script something like this:
# @(#)mkuser mkuser
#
# Check the number of arguments first
#
if [ $# -lt 3 ]
then
echo "usage: mkuser HomeDir UserName GroupName"
exit 1
fi
#
# Create the named directory if it does not already exist
# and set the file ownership and permission
#
if [ ! -d $1 ]
then
mkdir $1
chgrp $3 $1
chown $2 $1
chmod u=3Drwx,g=3Dsx,o=3Dx $1
mkdir $1/www
chgrp $3 $1/www
chown $2 $1/www
chmod u=3Drwx,g=3Drsx,o=3Drx $1/www
fi
Invoking that like this:
for e in `tail -NNNNN /etc/passwd| cut -d: -f1`;do mkuser `grep ^$e:=
/etc/passwd | awk -F":" '{print $6, $3, $4}'`;done
Where NNNNN is the number of lines you appended to the /etc/master.passwd fi=
le.
The above is not real efficient but you are not doing this every day.
At this point you should have users and home directories. You may also want=
to copy some of the dot files from /usr/share/skel into the new home=
directories. A script like this helps:
#!/bin/sh
# @(#)mkdot mkdot Copy dot files for user
## Sanity check
if [ $# -lt 1 ]; then
echo "usage: mkdot username"
exit 1
fi
if [ -d /home/austin/$1 ]; then
echo "Copying Skeleton files for $1"
## Do .profile
echo "Installing .profile"
cp /usr/share/skel/dot.profile /home/$1/.profile
chown $1 /home/$1/.profile
chmod u=3Drw,go=3D /home/$1/.profile
## Do .cshrc
echo "Installing .cshrc"
cp /usr/share/skel/dot.cshrc /home/$1/.cshrc
chown $1 /home/$1/.cshrc
chmod u=3Drw,go=3D /home/$1/.cshrc
## Do .login
echo "Installing .login"
cp /usr/share/skel/dot.login /home/$1/.login
chown $1 /home/austin/$1/.login
chmod u=3Drw,go=3D /home/$1/.login
else
exit 1
fi
This script assumes that that home directory is of the form /home/UserName. =
Good luck and as I stated in the beginning your mileage may vary.
---
Bob Beer <r-beer@onu.edu>
Ohio Northern University, Academic Computer Services, Ada, OH 45810
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