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10 steps to Password Protect SUSE's Grub Bootloader
Applies to:
- SUSE Linux Professional 9.2-9.3
- SUSE Linux 10.0
- Novell Linux Desktop 9
- SUSE Linux Enterprise Server 9
Steps:
- Log into your box as root
- Open up a shell.
- At command prompt, become superuser, then type grub:
- At "grub>" prompt type md5crypt:
- Enter a password at the Password: prompt, preferably something other than root password:
- It will then give you the password encrypted
- Copy the encrypted password into the clipboard.
- Open up a new shell.
- At command prompt, become superuser, then type vi /boot/grub/menu.lst
- After you see title SUSE Linux 10.0 on the next line type lock. On the following line type password md5 [the encrypted password you copied from previous shell]:
-
linux:~ # su
Password:
linux:~ # grub
-
grub> md5crypt
-
Password: *****
-
Encrypted: $1$Rdv455345ga345GvIRgXWxcF1Vjb7tZ//
-
linux:~ # su
Password:
linux:~ # vi /boot/grub/menu.lst
###Don't change this comment YaST2 identifier: Original name: linux###
title SUSE Linux 10.0
lock
password md5 $1$Rdv455345ga345GvIRgXWxcF1Vjb7tZ//
root (hd0,1)
kernel /boot/vmlinuz root=/dev/hda2 vga=0x31a selinux=0
resume=/dev/hda1 splash=silent showopts
initrd /boot/initrd
Note: ***You may do the above steps for each grub boot item.
For even more protection you may set a BIOS password and disable all other boot options in the BIOS that are not needed.
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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