Almost ready with diskless setup

Nagy László nagylzs at enternet.hu
Thu Aug 10 13:20:33 UTC 2006


I used this article:

http://www.onlamp.com/pub/a/bsd/2004/09/30/diskless_clients.html

to create a diskless configuration. Here is my /etc/rc script for the 
clients:

#!/bin/sh

PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin; export PATH

boot_ip=`kenv boot.netif.ip`
mount -t nfs 172.16.0.1:/var/diskless/${boot_ip}/etc /etc
mount -t nfs 172.16.0.1:/var/diskless/${boot_ip}/var /var
#mount -t nfs 172.16.0.1:/usr /usr
swapon /var/swap
rm -rf /var/tmp/*; rm -rf /var/tmp/.*;

. /etc/rc2

exit 0

The /etc/rc2 is different for each client. Here is an example for 
172.16.0.101:

#!/bin/sh

mount -a
/sbin/ldconfig -elf /usr/lib/compat /usr/X11R6/lib /usr/local/lib

/usr/sbin/syslogd

exit 0

Finally, here is my fstab:

# Device                                        Mountpoint      FStype  
Options         Dump    Pass
172.16.0.1:/diskless                        /               nfs     
ro              0       0
172.16.0.1:/var/diskless/172.16.0.101/etc      /etc            nfs     
rw              0       0
172.16.0.1:/var/diskless/172.16.0.101/var      /var            nfs     
rw              0       0
172.16.0.1:/usr                                /usr            nfs     
ro              0       0

When booting this machine, I get this screen:

http://messias.selfip.org/download/disklessboot.jpg

Questions:

1. mount_nfs is complaining. It cannot update mounttab. However, the 
mounttab is in /var/db and /var is not mounted yet. Is there a nice way 
to supress these annoying messages?
2. syslogd tells that it cannot open the pid file. (Operation not 
supported)  However, it creates /var/log/syslogd.pid. But that file is 
empty. What can be the problem?

Last (silly) question: when I boot the diskless system, it checks the 
login name but it does not ask for a password. I can login with any 
user, without providing a password. I guess this is because I replaced 
the standard /etc/rc script. Is there a simple command that I can use to 
switch to multiuser mode and have the system do the authentication?

Thanks,

   Laszlo



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