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Password Protecting ZEN Maintenance Mode

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7 April 2009 - 2:23pm
Submitted by: jayen

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You'll need to modify the initrd's that are loaded by maintenance mode to modify their startup scripts to prompt for a password.

  1. tty1

    2. First, we need to modify the initrd used by tty1. You can find this in your tftp server's 'boot' directory. Open it up, change the script that provides the prompt, and save the new intird. 
    mkdir /tmp/initzen
cd /tmp/initzen
gunzip -c ~/zfd/tftp/boot/initrd | cpio -idv

    add to bin/prompt.s:

     trap '' SIGINT
 while true; do
   read -p 'password: ' -s;
   echo;
   if [ $REPLY == password ]; then
     break;
   fi;
 done
 trap - SIGINT 


    find | cpio -H newc -o | gzip > ~/zfd/tftp/boot/initrd

  2. tty2-6

    3. Second, we need to modify the initrd used by the other ttys. You can find this in your tftp server's 'boot' directory (this one s called 'root'). Open it up, change the system bash profile, and save the new intird.

    mkdir /tmp/initzen2
gunzip -c ~/zfd/tftp/boot/root > /tmp/root.ext2
sudo mount /tmp/root.ext2 /tmp/initzen2/ -o loop
cd /tmp/initzen2

    add to etc/profile:

     trap '' SIGINT
 while true; do
   read -p 'password: ' -s;
   echo;
   if [ $REPLY == password ]; then
     break;
   fi;
 done
 trap - SIGINT 


    gzip < /tmp/root.ext2 > ~/zfd/tftp/boot/root

Tada! All safe now.


Disclaimer: As with everything else at Cool Solutions, this content is definitely not supported by Novell (so don't even think of calling Support if you try something and it blows up).

It was contributed by a community member and is published "as is." It seems to have worked for at least one person, and might work for you. But please be sure to test, test, test before you do anything drastic with it.



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